commit 8a00aa71d54dcd54b444185b9d148bf320ee9e30
Author: ReCruAs <recruas@aspirasrenz.me>
Date:   Wed Jan 7 14:09:59 2026 +0800

    Initial commit

diff --git a/.htaccess b/.htaccess
new file mode 100644
index 0000000..7a90e9a
--- /dev/null
+++ b/.htaccess
@@ -0,0 +1,6 @@
+# Redirect everything to /src while allowing direct access to it
+RewriteEngine On
+# Skip if already under /src
+RewriteCond %{REQUEST_URI} !^/src/
+# Redirect all to /src preserving the path
+RewriteRule ^(.*)$ /src/$1 [L]
\ No newline at end of file
diff --git a/Dockerfile b/Dockerfile
new file mode 100644
index 0000000..dae81e4
--- /dev/null
+++ b/Dockerfile
@@ -0,0 +1,15 @@
+FROM php:8.2-apache
+
+RUN apt-get update && apt-get install -y \
+    libpng-dev libjpeg62-turbo-dev libfreetype6-dev \
+    && docker-php-ext-configure gd --with-freetype --with-jpeg \
+    && docker-php-ext-install gd mysqli pdo pdo_mysql \
+    && rm -rf /var/lib/apt/lists/*
+
+# Copy app into web root (index.php is in src/)
+COPY src/ /var/www/html/
+
+# Enable useful Apache module and set permissions
+RUN a2enmod rewrite && chown -R www-data:www-data /var/www/html
+
+EXPOSE 80
diff --git a/account.json b/account.json
new file mode 100644
index 0000000..ce9e156
--- /dev/null
+++ b/account.json
@@ -0,0 +1,20 @@
+{
+  "generated_at": "2025-12-18T16:06:30.346Z",
+  "users": [
+    {
+      "id": 1,
+      "username": "johnlloydsumawang26",
+      "email": "johnlloydsumawang@gmail.com",
+      "role": "admin",
+      "password_hash": "$2y$10$cH0FJuPLd467oX0q01ZADu6v2lh0kmfNob0HOyO5tuRstcdXBbIuS",
+      "password": "jolo26"
+    },
+    {
+      "id": 10,
+      "username": "SPayDigong",
+      "email": "redgie@simc.gov.ph",
+      "role": "admin",
+      "password_hash": "$2y$10$r02pNIERlJKRmrT6haCP8.YLpEAAEM0hTYRQnWpJ7ktZ6E6GRjQNq"
+    }
+  ]
+}
\ No newline at end of file
diff --git a/docker-compose.yml b/docker-compose.yml
new file mode 100644
index 0000000..485d0c0
--- /dev/null
+++ b/docker-compose.yml
@@ -0,0 +1,33 @@
+version: "3.9"
+services:
+  app:
+    build:
+      context: .
+      dockerfile: Dockerfile
+    container_name: attendance_app
+    ports:
+      - "9090:80"
+    environment:
+      DB_HOST: db
+      DB_USER: root
+      DB_PASS: ""
+      DB_NAME: attendance_system
+    volumes:
+      - ./src:/var/www/html
+    depends_on:
+      - db
+
+  db:
+    image: mariadb:10.6
+    container_name: attendance_db
+    environment:
+      MARIADB_ALLOW_EMPTY_ROOT_PASSWORD: "yes"
+      MARIADB_DATABASE: attendance_system
+    volumes:
+      - db_data:/var/lib/mysql
+      - ./docker/migrate.sql:/docker-entrypoint-initdb.d/migrate.sql:ro
+    ports:
+      - "3306:3306"
+
+volumes:
+  db_data:
diff --git a/docker/migrate.sql b/docker/migrate.sql
new file mode 100644
index 0000000..12fe195
--- /dev/null
+++ b/docker/migrate.sql
@@ -0,0 +1,207 @@
+SET NAMES utf8mb4;
+SET FOREIGN_KEY_CHECKS = 0;
+
+DROP TABLE IF EXISTS `attendance_logs`;
+DROP TABLE IF EXISTS `attendance`;
+DROP TABLE IF EXISTS `attendance_records`;
+DROP TABLE IF EXISTS `activities`;
+DROP TABLE IF EXISTS `students`;
+DROP TABLE IF EXISTS `courses`;
+DROP TABLE IF EXISTS `departments`;
+DROP TABLE IF EXISTS `schools`;
+DROP TABLE IF EXISTS `genders`;
+DROP TABLE IF EXISTS `system_settings`;
+DROP TABLE IF EXISTS `users`;
+
+CREATE TABLE `users` (
+    `id` int NOT NULL AUTO_INCREMENT,
+    `username` varchar(50) NOT NULL,
+    `password` varchar(255) NOT NULL,
+    `role` enum('admin','staff') NOT NULL DEFAULT 'staff',
+    `full_name` varchar(120) NOT NULL,
+    `email` varchar(120) DEFAULT NULL,
+    `status` tinyint NOT NULL DEFAULT 1,
+    `created_at` timestamp NOT NULL DEFAULT CURRENT_TIMESTAMP,
+    `updated_at` timestamp NOT NULL DEFAULT CURRENT_TIMESTAMP ON UPDATE CURRENT_TIMESTAMP,
+    PRIMARY KEY (`id`),
+    UNIQUE KEY `uniq_username` (`username`)
+) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4;
+
+CREATE TABLE `system_settings` (
+    `id` int NOT NULL AUTO_INCREMENT,
+    `setting_key` varchar(80) NOT NULL,
+    `setting_value` text NULL,
+    `description` text NULL,
+    `updated_by` int DEFAULT NULL,
+    `updated_at` timestamp NOT NULL DEFAULT CURRENT_TIMESTAMP ON UPDATE CURRENT_TIMESTAMP,
+    PRIMARY KEY (`id`),
+    UNIQUE KEY `uniq_setting_key` (`setting_key`),
+    CONSTRAINT `fk_settings_user` FOREIGN KEY (`updated_by`) REFERENCES `users` (`id`) ON DELETE SET NULL
+) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4;
+
+CREATE TABLE `schools` (
+    `id` int NOT NULL AUTO_INCREMENT,
+    `code` varchar(10) NOT NULL,
+    `name` varchar(150) NOT NULL,
+    `address` text NULL,
+    `contact_number` varchar(30) NULL,
+    `email` varchar(120) NULL,
+    `status` tinyint NOT NULL DEFAULT 1,
+    `created_at` timestamp NOT NULL DEFAULT CURRENT_TIMESTAMP,
+    `updated_at` timestamp NOT NULL DEFAULT CURRENT_TIMESTAMP ON UPDATE CURRENT_TIMESTAMP,
+    PRIMARY KEY (`id`),
+    UNIQUE KEY `uniq_school_code` (`code`)
+) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4;
+
+CREATE TABLE `genders` (
+    `id` int NOT NULL AUTO_INCREMENT,
+    `code` varchar(1) NOT NULL,
+    `name` varchar(20) NOT NULL,
+    PRIMARY KEY (`id`),
+    UNIQUE KEY `uniq_gender_code` (`code`)
+) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4;
+
+CREATE TABLE `departments` (
+    `id` int NOT NULL AUTO_INCREMENT,
+    `code` varchar(10) NOT NULL,
+    `name` varchar(150) NOT NULL,
+    `description` text NULL,
+    `school_id` int NOT NULL,
+    `status` tinyint NOT NULL DEFAULT 1,
+    `created_at` timestamp NOT NULL DEFAULT CURRENT_TIMESTAMP,
+    `updated_at` timestamp NOT NULL DEFAULT CURRENT_TIMESTAMP ON UPDATE CURRENT_TIMESTAMP,
+    PRIMARY KEY (`id`),
+    UNIQUE KEY `uniq_department_code` (`code`),
+    CONSTRAINT `fk_departments_school` FOREIGN KEY (`school_id`) REFERENCES `schools` (`id`) ON DELETE RESTRICT
+) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4;
+
+CREATE TABLE `courses` (
+    `id` int NOT NULL AUTO_INCREMENT,
+    `code` varchar(15) NOT NULL,
+    `name` varchar(150) NOT NULL,
+    `department_id` int NOT NULL,
+    `description` text NULL,
+    `status` tinyint NOT NULL DEFAULT 1,
+    `created_at` timestamp NOT NULL DEFAULT CURRENT_TIMESTAMP,
+    `updated_at` timestamp NOT NULL DEFAULT CURRENT_TIMESTAMP ON UPDATE CURRENT_TIMESTAMP,
+    PRIMARY KEY (`id`),
+    UNIQUE KEY `uniq_course_code` (`code`),
+    CONSTRAINT `fk_courses_department` FOREIGN KEY (`department_id`) REFERENCES `departments` (`id`) ON DELETE RESTRICT
+) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4;
+
+CREATE TABLE `students` (
+    `id` int NOT NULL AUTO_INCREMENT,
+    `student_id` varchar(30) NOT NULL,
+    `full_name` varchar(150) NOT NULL,
+    `gender_id` int NOT NULL,
+    `year_level` int NOT NULL DEFAULT 1,
+    `course_id` int NOT NULL,
+    `department_id` int NOT NULL,
+    `school_id` int NOT NULL,
+    `email` varchar(150) NULL,
+    `contact_number` varchar(30) NULL,
+    `address` text NULL,
+    `qr_code` varchar(255) NOT NULL,
+    `status` tinyint NOT NULL DEFAULT 1,
+    `created_at` timestamp NOT NULL DEFAULT CURRENT_TIMESTAMP,
+    `updated_at` timestamp NOT NULL DEFAULT CURRENT_TIMESTAMP ON UPDATE CURRENT_TIMESTAMP,
+    PRIMARY KEY (`id`),
+    UNIQUE KEY `uniq_student_id` (`student_id`),
+    UNIQUE KEY `uniq_qr_code` (`qr_code`),
+    CONSTRAINT `fk_students_gender` FOREIGN KEY (`gender_id`) REFERENCES `genders` (`id`) ON DELETE RESTRICT,
+    CONSTRAINT `fk_students_course` FOREIGN KEY (`course_id`) REFERENCES `courses` (`id`) ON DELETE RESTRICT,
+    CONSTRAINT `fk_students_department` FOREIGN KEY (`department_id`) REFERENCES `departments` (`id`) ON DELETE RESTRICT,
+    CONSTRAINT `fk_students_school` FOREIGN KEY (`school_id`) REFERENCES `schools` (`id`) ON DELETE RESTRICT
+) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4;
+
+CREATE TABLE `activities` (
+    `id` int NOT NULL AUTO_INCREMENT,
+    `name` varchar(150) NOT NULL,
+    `date` date NOT NULL,
+    `time_in` time NULL,
+    `time_out` time NULL,
+    `location` varchar(255) NULL,
+    `description` text NULL,
+    `required_students` enum('all','specific_course','specific_department') NOT NULL DEFAULT 'all',
+    `course_id` int DEFAULT NULL,
+    `department_id` int DEFAULT NULL,
+    `status` tinyint NOT NULL DEFAULT 1,
+    `created_by` int NOT NULL,
+    `created_at` timestamp NOT NULL DEFAULT CURRENT_TIMESTAMP,
+    `updated_at` timestamp NOT NULL DEFAULT CURRENT_TIMESTAMP ON UPDATE CURRENT_TIMESTAMP,
+    PRIMARY KEY (`id`),
+    CONSTRAINT `fk_activities_course` FOREIGN KEY (`course_id`) REFERENCES `courses` (`id`) ON DELETE SET NULL,
+    CONSTRAINT `fk_activities_department` FOREIGN KEY (`department_id`) REFERENCES `departments` (`id`) ON DELETE SET NULL,
+    CONSTRAINT `fk_activities_user` FOREIGN KEY (`created_by`) REFERENCES `users` (`id`) ON DELETE RESTRICT
+) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4;
+
+CREATE TABLE `attendance` (
+    `id` int NOT NULL AUTO_INCREMENT,
+    `student_id` int NOT NULL,
+    `activity_id` int NOT NULL,
+    `time_in` datetime DEFAULT NULL,
+    `time_out` datetime DEFAULT NULL,
+    `status` enum('present','late','absent','excused') NOT NULL DEFAULT 'present',
+    `notes` text NULL,
+    `recorded_by` int NOT NULL,
+    `created_at` timestamp NOT NULL DEFAULT CURRENT_TIMESTAMP,
+    `updated_at` timestamp NOT NULL DEFAULT CURRENT_TIMESTAMP ON UPDATE CURRENT_TIMESTAMP,
+    PRIMARY KEY (`id`),
+    UNIQUE KEY `uniq_student_activity` (`student_id`,`activity_id`),
+    CONSTRAINT `fk_attendance_student` FOREIGN KEY (`student_id`) REFERENCES `students` (`id`) ON DELETE CASCADE,
+    CONSTRAINT `fk_attendance_activity` FOREIGN KEY (`activity_id`) REFERENCES `activities` (`id`) ON DELETE CASCADE,
+    CONSTRAINT `fk_attendance_user` FOREIGN KEY (`recorded_by`) REFERENCES `users` (`id`) ON DELETE RESTRICT
+) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4;
+
+CREATE TABLE `attendance_logs` (
+    `id` int NOT NULL AUTO_INCREMENT,
+    `attendance_id` int NOT NULL,
+    `action` enum('time_in','time_out','status_change','manual_entry') NOT NULL,
+    `old_value` varchar(255) NULL,
+    `new_value` varchar(255) NULL,
+    `changed_by` int NOT NULL,
+    `notes` text NULL,
+    `changed_at` timestamp NOT NULL DEFAULT CURRENT_TIMESTAMP,
+    PRIMARY KEY (`id`),
+    CONSTRAINT `fk_logs_attendance` FOREIGN KEY (`attendance_id`) REFERENCES `attendance` (`id`) ON DELETE CASCADE,
+    CONSTRAINT `fk_logs_user` FOREIGN KEY (`changed_by`) REFERENCES `users` (`id`) ON DELETE RESTRICT
+) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4;
+
+CREATE TABLE `attendance_records` (
+    `id` int NOT NULL AUTO_INCREMENT,
+    `student_id` int NOT NULL,
+    `course_id` int NOT NULL,
+    `status` enum('present','late','absent') NOT NULL DEFAULT 'present',
+    `date_recorded` datetime NOT NULL DEFAULT CURRENT_TIMESTAMP,
+    `created_by` int NOT NULL,
+    PRIMARY KEY (`id`),
+    CONSTRAINT `fk_records_student` FOREIGN KEY (`student_id`) REFERENCES `students` (`id`) ON DELETE RESTRICT,
+    CONSTRAINT `fk_records_course` FOREIGN KEY (`course_id`) REFERENCES `courses` (`id`) ON DELETE RESTRICT,
+    CONSTRAINT `fk_records_user` FOREIGN KEY (`created_by`) REFERENCES `users` (`id`) ON DELETE RESTRICT
+) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4;
+
+INSERT INTO `users` (`username`, `password`, `role`, `full_name`, `email`, `status`)
+VALUES ('admin', '$2y$12$Z0SOoRGlhfq65/a0eNlHL.pnO7qhYWJoUlZKDmnp7SwNttCkY07hC', 'admin', 'System Administrator', 'admin@example.com', 1);
+
+INSERT INTO `genders` (`code`, `name`) VALUES
+('M', 'Male'),
+('F', 'Female'),
+('O', 'Other');
+
+INSERT INTO `schools` (`code`, `name`, `address`, `contact_number`, `email`) VALUES
+('ACAD', 'Academy of Innovation', '123 University Ave, Solano', '+63 900 000 0000', 'info@academy.edu.ph');
+
+INSERT INTO `departments` (`code`, `name`, `description`, `school_id`) VALUES
+('CASE', 'College of Arts & Sciences', 'General education and sciences', 1),
+('CBA', 'College of Business & Accountancy', 'Business programs', 1);
+
+INSERT INTO `courses` (`code`, `name`, `department_id`, `description`) VALUES
+('BSIT', 'BS Information Technology', 1, 'Technology track'),
+('BSBA', 'BS Business Administration', 2, 'Business track');
+
+INSERT INTO `system_settings` (`setting_key`, `setting_value`, `description`, `updated_by`) VALUES
+('app.name', 'QR Attendance System', 'System display name', 1),
+('attendance.cutoff_minutes', '15', 'Minutes before absent marked late', 1),
+('qr.prefix', 'STU', 'Prefix for generated QR tokens', 1);
+
+SET FOREIGN_KEY_CHECKS = 1;
diff --git a/prompt.json b/prompt.json
new file mode 100644
index 0000000..f0e9995
--- /dev/null
+++ b/prompt.json
@@ -0,0 +1,21 @@
+{
+  "idea": "QR Code Attendance Management System for schools",
+  "table-quantity": 11,
+  "tables": [
+    "activities",
+    "attendance",
+    "attendance_logs",
+    "attendance_records",
+    "courses",
+    "departments",
+    "genders",
+    "schools",
+    "students",
+    "system_settings",
+    "users"
+  ],
+  "prompt": "Build a complete QR-based attendance platform for academic institutions. Include admin dashboards for managing students, courses, departments, activities, and system users; QR code generation/printing for each student; QR + manual attendance capture with per-activity participant restrictions; audit trails, exports, printable reports, and configurable system settings. Stack: PHP (Apache) backend with MariaDB, Bootstrap 5 + jQuery frontend, REST-like PHP endpoints for scanning/manual entry, and clean responsive UI.",
+  "architecture": "MariaDB (DB), PHP (backend), jQuery (JS), Bootstrap 5 (UI), phpqrcode (QR generation)",
+  "docker-compose.yml": "Single docker-compose with MariaDB, phpMyAdmin, and PHP-Apache web container on one bridge network. Provide basic env vars (DB host, user, pass), persist volumes for db/web, and mount the SQL seed/init scripts.",
+  "code-style": "Keep implementations straightforward and readable; prefer simple PHP includes, prepared statements, and Bootstrap components without heavy abstractions."
+}
diff --git a/src-backup/.htaccess.txt b/src-backup/.htaccess.txt
new file mode 100644
index 0000000..e80db9e
--- /dev/null
+++ b/src-backup/.htaccess.txt
@@ -0,0 +1,26 @@
+RewriteEngine On
+
+# Redirect trailing slashes
+RewriteCond %{REQUEST_FILENAME} !-d
+RewriteRule ^(.*)/$ /$1 [L,R=301]
+
+# Protect sensitive directories
+RewriteRule ^includes/ - [F,L]
+RewriteRule ^config/ - [F,L]
+RewriteRule ^sql/ - [F,L]
+
+# Prevent access to .htaccess
+<Files .htaccess>
+    Order allow,deny
+    Deny from all
+</Files>
+
+# Set default index file
+DirectoryIndex index.php
+
+# Security headers
+<IfModule mod_headers.c>
+    Header set X-Content-Type-Options "nosniff"
+    Header set X-Frame-Options "SAMEORIGIN"
+    Header set X-XSS-Protection "1; mode=block"
+</IfModule>
\ No newline at end of file
diff --git a/src-backup/admin/add_activity.php b/src-backup/admin/add_activity.php
new file mode 100644
index 0000000..64e72fa
--- /dev/null
+++ b/src-backup/admin/add_activity.php
@@ -0,0 +1,267 @@
+<?php
+require_once '../includes/config.php';
+
+// Check if user is logged in and is admin
+if (!isset($_SESSION['logged_in']) || $_SESSION['logged_in'] !== true || $_SESSION['role'] !== 'admin') {
+    header('Location: ../auth/login.php');
+    exit();
+}
+
+$title = "Add New Activity";
+
+// Initialize variables
+$message = '';
+$message_type = '';
+
+// Handle form submission
+if ($_SERVER['REQUEST_METHOD'] === 'POST') {
+    // Validate required fields
+    $required_fields = ['name', 'date', 'time_in', 'time_out', 'location', 'required_students'];
+    $valid = true;
+    
+    foreach ($required_fields as $field) {
+        if (empty($_POST[$field])) {
+            $message = "Please fill all required fields!";
+            $message_type = 'danger';
+            $valid = false;
+            break;
+        }
+    }
+    
+    if ($valid) {
+        $activity_data = [
+            'name' => escape($conn, $_POST['name']),
+            'date' => $_POST['date'],
+            'time_in' => $_POST['time_in'],
+            'time_out' => $_POST['time_out'],
+            'description' => escape($conn, $_POST['description']),
+            'location' => escape($conn, $_POST['location']),
+            'required_students' => $_POST['required_students'],
+            'course_id' => $_POST['course_id'] ? intval($_POST['course_id']) : null,
+            'department_id' => $_POST['department_id'] ? intval($_POST['department_id']) : null,
+            'created_by' => $_SESSION['user_id']
+        ];
+
+        // Validate time
+        if (strtotime($activity_data['time_out']) <= strtotime($activity_data['time_in'])) {
+            $message = 'Time Out must be later than Time In!';
+            $message_type = 'danger';
+        } else {
+            $sql = "INSERT INTO activities (
+                name, date, time_in, time_out, description, location,
+                required_students, course_id, department_id, created_by,
+                created_at, updated_at, status
+            ) VALUES (
+                '{$activity_data['name']}',
+                '{$activity_data['date']}',
+                '{$activity_data['time_in']}',
+                '{$activity_data['time_out']}',
+                '{$activity_data['description']}',
+                '{$activity_data['location']}',
+                '{$activity_data['required_students']}',
+                " . ($activity_data['course_id'] ? $activity_data['course_id'] : 'NULL') . ",
+                " . ($activity_data['department_id'] ? $activity_data['department_id'] : 'NULL') . ",
+                {$activity_data['created_by']},
+                NOW(),
+                NOW(),
+                1
+            )";
+
+            if (query($conn, $sql)) {
+                $_SESSION['message'] = 'Activity added successfully!';
+                $_SESSION['message_type'] = 'success';
+                header('Location: manage_activities.php');
+                exit();
+            } else {
+                $message = 'Error adding activity: ' . mysqli_error($conn);
+                $message_type = 'danger';
+            }
+        }
+    }
+}
+
+// Get dropdown data
+$courses = [];
+$departments = [];
+
+// Courses
+$result = query($conn, "SELECT * FROM courses WHERE status = 1 ORDER BY code");
+while ($row = mysqli_fetch_assoc($result)) {
+    $courses[] = $row;
+}
+
+// Departments
+$result = query($conn, "SELECT * FROM departments WHERE status = 1 ORDER BY code");
+while ($row = mysqli_fetch_assoc($result)) {
+    $departments[] = $row;
+}
+
+include '../includes/header.php';
+?>
+
+<!-- Page Header -->
+<div class="d-flex justify-content-between align-items-center mb-4">
+    <div>
+        <h1 class="h3 mb-2">Add New Activity</h1>
+        <p class="text-muted">Schedule a new activity, event, or class.</p>
+    </div>
+    <div>
+        <a href="manage_activities.php" class="btn btn-secondary">
+            <i class="bi bi-arrow-left me-2"></i> Back to Activities
+        </a>
+    </div>
+</div>
+
+<!-- Message Alert -->
+<?php if ($message): ?>
+<div class="alert alert-<?php echo $message_type; ?> alert-dismissible fade show">
+    <?php echo $message; ?>
+    <button type="button" class="btn-close" data-bs-dismiss="alert"></button>
+</div>
+<?php endif; ?>
+
+<!-- Add Activity Form -->
+<div class="card shadow">
+    <div class="card-header">
+        <h5 class="mb-0">
+            <i class="bi bi-calendar-plus me-2"></i> Activity Details
+        </h5>
+    </div>
+    <div class="card-body">
+        <form method="POST" action="" id="addActivityForm">
+            <div class="row">
+                <div class="col-md-12 mb-3">
+                    <label class="form-label">Activity Name <span class="text-danger">*</span></label>
+                    <input type="text" class="form-control" name="name" required 
+                           placeholder="e.g., JPCS Week, Morning Class, Seminar"
+                           value="<?php echo $_POST['name'] ?? ''; ?>">
+                </div>
+                
+                <div class="col-md-6 mb-3">
+                    <label class="form-label">Date <span class="text-danger">*</span></label>
+                    <input type="date" class="form-control" name="date" required 
+                           min="<?php echo date('Y-m-d'); ?>" 
+                           value="<?php echo $_POST['date'] ?? date('Y-m-d'); ?>">
+                </div>
+                <div class="col-md-3 mb-3">
+                    <label class="form-label">Time In <span class="text-danger">*</span></label>
+                    <input type="time" class="form-control" name="time_in" required 
+                           value="<?php echo $_POST['time_in'] ?? '08:00'; ?>">
+                </div>
+                <div class="col-md-3 mb-3">
+                    <label class="form-label">Time Out <span class="text-danger">*</span></label>
+                    <input type="time" class="form-control" name="time_out" required 
+                           value="<?php echo $_POST['time_out'] ?? '17:00'; ?>">
+                </div>
+                
+                <div class="col-md-12 mb-3">
+                    <label class="form-label">Location <span class="text-danger">*</span></label>
+                    <input type="text" class="form-control" name="location" required 
+                           placeholder="e.g., AVR1, Room 101, Gymnasium"
+                           value="<?php echo $_POST['location'] ?? ''; ?>">
+                </div>
+                
+                <div class="col-md-12 mb-3">
+                    <label class="form-label">Description</label>
+                    <textarea class="form-control" name="description" rows="3" 
+                              placeholder="Brief description of the activity..."><?php echo $_POST['description'] ?? ''; ?></textarea>
+                </div>
+                
+                <div class="col-md-12 mb-3">
+                    <label class="form-label">Participants <span class="text-danger">*</span></label>
+                    <select class="form-select" name="required_students" required id="participantType" onchange="toggleParticipantSelection()">
+                        <option value="">Select Participant Type</option>
+                        <option value="all" <?php echo ($_POST['required_students'] ?? '') == 'all' ? 'selected' : ''; ?>>All Students</option>
+                        <option value="specific_course" <?php echo ($_POST['required_students'] ?? '') == 'specific_course' ? 'selected' : ''; ?>>Specific Course</option>
+                        <option value="specific_department" <?php echo ($_POST['required_students'] ?? '') == 'specific_department' ? 'selected' : ''; ?>>Specific Department</option>
+                    </select>
+                </div>
+                
+                <div class="col-md-6 mb-3" id="courseSelection" style="display: none;">
+                    <label class="form-label">Select Course</label>
+                    <select class="form-select" name="course_id" id="courseSelect">
+                        <option value="">Select Course</option>
+                        <?php foreach ($courses as $course): ?>
+                            <option value="<?php echo $course['id']; ?>"
+                                <?php echo ($_POST['course_id'] ?? '') == $course['id'] ? 'selected' : ''; ?>>
+                                <?php echo $course['code']; ?> - <?php echo $course['name']; ?>
+                            </option>
+                        <?php endforeach; ?>
+                    </select>
+                </div>
+                
+                <div class="col-md-6 mb-3" id="departmentSelection" style="display: none;">
+                    <label class="form-label">Select Department</label>
+                    <select class="form-select" name="department_id" id="departmentSelect">
+                        <option value="">Select Department</option>
+                        <?php foreach ($departments as $department): ?>
+                            <option value="<?php echo $department['id']; ?>"
+                                <?php echo ($_POST['department_id'] ?? '') == $department['id'] ? 'selected' : ''; ?>>
+                                <?php echo $department['name']; ?>
+                            </option>
+                        <?php endforeach; ?>
+                    </select>
+                </div>
+            </div>
+            
+            <div class="mt-4">
+                <button type="submit" class="btn btn-primary">
+                    <i class="bi bi-save me-1"></i> Schedule Activity
+                </button>
+                <a href="manage_activities.php" class="btn btn-secondary">Cancel</a>
+            </div>
+        </form>
+    </div>
+</div>
+
+<?php 
+$page_scripts = '
+<script>
+function toggleParticipantSelection() {
+    const participantType = document.getElementById("participantType").value;
+    const courseSelection = document.getElementById("courseSelection");
+    const departmentSelection = document.getElementById("departmentSelection");
+    
+    if (participantType === "specific_course") {
+        courseSelection.style.display = "block";
+        departmentSelection.style.display = "none";
+        document.getElementById("courseSelect").required = true;
+        document.getElementById("departmentSelect").required = false;
+    } else if (participantType === "specific_department") {
+        courseSelection.style.display = "none";
+        departmentSelection.style.display = "block";
+        document.getElementById("courseSelect").required = false;
+        document.getElementById("departmentSelect").required = true;
+    } else {
+        courseSelection.style.display = "none";
+        departmentSelection.style.display = "none";
+        document.getElementById("courseSelect").required = false;
+        document.getElementById("departmentSelect").required = false;
+    }
+}
+
+// Set minimum date for activity date (today or later)
+document.addEventListener("DOMContentLoaded", function() {
+    const today = new Date().toISOString().split("T")[0];
+    document.querySelector("input[name=\'date\']").min = today;
+    
+    // Initialize participant selection
+    toggleParticipantSelection();
+    
+    // Time validation
+    document.getElementById("addActivityForm").addEventListener("submit", function(e) {
+        const timeIn = document.querySelector("input[name=\'time_in\']").value;
+        const timeOut = document.querySelector("input[name=\'time_out\']").value;
+        
+        if (timeIn && timeOut && timeOut <= timeIn) {
+            e.preventDefault();
+            alert("Time Out must be later than Time In!");
+            return false;
+        }
+    });
+});
+</script>
+';
+
+include '../includes/footer.php';
+?>
\ No newline at end of file
diff --git a/src-backup/admin/add_student.php b/src-backup/admin/add_student.php
new file mode 100644
index 0000000..2aebf45
--- /dev/null
+++ b/src-backup/admin/add_student.php
@@ -0,0 +1,434 @@
+<?php
+require_once '../includes/config.php';
+
+// Check if user is logged in and is admin
+if (!isset($_SESSION['logged_in']) || $_SESSION['logged_in'] !== true || $_SESSION['role'] !== 'admin') {
+    header('Location: ../auth/login.php');
+    exit();
+}
+
+$title = "Add New Student";
+
+// Initialize variables
+$message = '';
+$message_type = '';
+
+// Get dropdown data
+$genders = [];
+$courses = [];
+$departments = [];
+$schools = [];
+
+// Genders
+$result = mysqli_query($conn, "SELECT * FROM genders ORDER BY id");
+if ($result) {
+    while ($row = mysqli_fetch_assoc($result)) {
+        $genders[] = $row;
+    }
+}
+
+// Courses
+$result = mysqli_query($conn, "SELECT * FROM courses WHERE status = 1 ORDER BY code");
+if ($result) {
+    while ($row = mysqli_fetch_assoc($result)) {
+        $courses[] = $row;
+    }
+}
+
+// Departments
+$result = mysqli_query($conn, "SELECT * FROM departments WHERE status = 1 ORDER BY code");
+if ($result) {
+    while ($row = mysqli_fetch_assoc($result)) {
+        $departments[] = $row;
+    }
+}
+
+// Schools
+$result = mysqli_query($conn, "SELECT * FROM schools WHERE status = 1 ORDER BY code");
+if ($result) {
+    while ($row = mysqli_fetch_assoc($result)) {
+        $schools[] = $row;
+    }
+}
+
+// Handle form submission
+if ($_SERVER['REQUEST_METHOD'] === 'POST') {
+    
+    // Get form data
+    $student_id = trim($_POST['student_id'] ?? '');
+    $full_name = trim($_POST['full_name'] ?? '');
+    $gender_id = intval($_POST['gender_id'] ?? 0);
+    $year_level = intval($_POST['year_level'] ?? 0);
+    $course_id = intval($_POST['course_id'] ?? 0);
+    $department_id = intval($_POST['department_id'] ?? 0);
+    $school_id = intval($_POST['school_id'] ?? 0);
+    $birth_date = !empty($_POST['birth_date']) ? $_POST['birth_date'] : NULL;
+    $contact_number = trim($_POST['contact_number'] ?? '');
+    $email = trim($_POST['email'] ?? '');
+    $address = trim($_POST['address'] ?? '');
+    
+    
+    // Debug: Check required fields
+    if (empty($student_id) || empty($full_name) || $gender_id == 0 || $year_level == 0 || 
+        $course_id == 0 || $department_id == 0 || $school_id == 0) {
+        $message = 'Please fill in all required fields.';
+        $message_type = 'danger';
+    }
+    
+    // Validate email format if provided
+    elseif (!empty($email) && !filter_var($email, FILTER_VALIDATE_EMAIL)) {
+        $message = 'Please enter a valid email address.';
+        $message_type = 'danger';
+    }
+    
+    // Check for duplicate student ID
+    else {
+        $check_sql = "SELECT id FROM students WHERE student_id = ?";
+        $stmt = mysqli_prepare($conn, $check_sql);
+        if ($stmt) {
+            mysqli_stmt_bind_param($stmt, 's', $student_id);
+            mysqli_stmt_execute($stmt);
+            mysqli_stmt_store_result($stmt);
+            
+            if (mysqli_stmt_num_rows($stmt) > 0) {
+                $message = 'Student ID already exists. Please use a different Student ID.';
+                $message_type = 'danger';
+            }
+            mysqli_stmt_close($stmt);
+        }
+        
+        // If no errors, insert student
+        if (empty($message)) {
+            // Generate QR code
+            $qr_code = 'STU_' . $student_id . '_' . uniqid();
+            
+            $sql = "INSERT INTO students (
+                student_id, qr_code, full_name, gender_id, year_level, 
+                course_id, department_id, school_id, birth_date, 
+                contact_number, email, address, created_at, updated_at, status
+            ) VALUES (?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, NOW(), NOW(), 1)";
+            
+            
+            $stmt = mysqli_prepare($conn, $sql);
+            if ($stmt) {
+                // Escape data
+                $student_id = mysqli_real_escape_string($conn, $student_id);
+                $full_name = mysqli_real_escape_string($conn, $full_name);
+                $contact_number = mysqli_real_escape_string($conn, $contact_number);
+                $email = mysqli_real_escape_string($conn, $email);
+                $address = mysqli_real_escape_string($conn, $address);
+                
+                // Bind parameters based on birth_date
+                if ($birth_date === NULL) {
+                    mysqli_stmt_bind_param($stmt, 'sssiiiiissss',
+                        $student_id, $qr_code, $full_name, $gender_id, $year_level,
+                        $course_id, $department_id, $school_id, null,
+                        $contact_number, $email, $address
+                    );
+                } else {
+                    mysqli_stmt_bind_param($stmt, 'sssiiiiissss',
+                        $student_id, $qr_code, $full_name, $gender_id, $year_level,
+                        $course_id, $department_id, $school_id, $birth_date,
+                        $contact_number, $email, $address
+                    );
+                }
+                
+                if (mysqli_stmt_execute($stmt)) {
+                    $new_student_id = mysqli_insert_id($conn);
+                    
+                    // Redirect to view the newly added student
+                    $_SESSION['flash_message'] = 'Student added successfully!';
+                    $_SESSION['flash_type'] = 'success';
+                    header("Location: view_student.php?id=$new_student_id");
+                    exit();
+                } else {
+                    $message = 'Error adding student: ' . mysqli_error($conn);
+                    $message_type = 'danger';
+                }
+                mysqli_stmt_close($stmt);
+            } else {
+                $message = 'Error preparing statement: ' . mysqli_error($conn);
+                $message_type = 'danger';
+            }
+        }
+    }
+}
+
+include '../includes/header.php';
+?>
+
+<!-- Page Header -->
+<div class="container-fluid">
+    <div class="d-flex justify-content-between align-items-center mb-4">
+        <div>
+            <h1 class="h3 mb-2">
+                <i class="bi bi-person-plus me-2"></i> Add New Student
+            </h1>
+            <nav aria-label="breadcrumb">
+                <ol class="breadcrumb">
+                    <li class="breadcrumb-item"><a href="dashboard.php">Dashboard</a></li>
+                    <li class="breadcrumb-item"><a href="manage_students.php">Manage Students</a></li>
+                    <li class="breadcrumb-item active">Add Student</li>
+                </ol>
+            </nav>
+        </div>
+        <div>
+            <a href="manage_students.php" class="btn btn-outline-secondary">
+                <i class="bi bi-arrow-left me-2"></i> Back to Students
+            </a>
+        </div>
+    </div>
+
+    <!-- Message Alert -->
+    <?php if ($message): ?>
+    <div class="alert alert-<?php echo $message_type; ?> alert-dismissible fade show mb-4" role="alert">
+        <i class="bi bi-<?php echo $message_type == 'success' ? 'check-circle' : 'exclamation-triangle'; ?> me-2"></i>
+        <?php echo $message; ?>
+        <button type="button" class="btn-close" data-bs-dismiss="alert" aria-label="Close"></button>
+    </div>
+    <?php endif; ?>
+
+    <div class="row">
+        <div class="col-lg-8">
+            <!-- Add Form Card -->
+            <div class="card shadow mb-4">
+                <div class="card-header bg-primary text-white">
+                    <h6 class="m-0 font-weight-bold">
+                        <i class="bi bi-person-lines-fill me-2"></i> Student Information
+                    </h6>
+                </div>
+                <div class="card-body">
+                    <form method="POST" action="" id="addStudentForm">
+                        <div class="row">
+                            <div class="col-md-6 mb-3">
+                                <label class="form-label">Student ID <span class="text-danger">*</span></label>
+                                <input type="text" class="form-control" name="student_id" required 
+                                       placeholder="e.g., 23-0217" maxlength="50"
+                                       value="<?php echo isset($_POST['student_id']) ? htmlspecialchars($_POST['student_id']) : ''; ?>">
+                                <div class="form-text">Unique student identification number</div>
+                            </div>
+                            <div class="col-md-6 mb-3">
+                                <label class="form-label">Full Name <span class="text-danger">*</span></label>
+                                <input type="text" class="form-control" name="full_name" required 
+                                       placeholder="John Lloyd Sumawang" maxlength="100"
+                                       value="<?php echo isset($_POST['full_name']) ? htmlspecialchars($_POST['full_name']) : ''; ?>">
+                            </div>
+                            
+                            <div class="col-md-6 mb-3">
+                                <label class="form-label">Gender <span class="text-danger">*</span></label>
+                                <select class="form-select" name="gender_id" required>
+                                    <option value="">Select Gender</option>
+                                    <?php foreach ($genders as $gender): ?>
+                                        <option value="<?php echo $gender['id']; ?>"
+                                            <?php echo (isset($_POST['gender_id']) && $_POST['gender_id'] == $gender['id']) ? 'selected' : ''; ?>>
+                                            <?php echo htmlspecialchars($gender['name']); ?>
+                                        </option>
+                                    <?php endforeach; ?>
+                                </select>
+                            </div>
+                            <div class="col-md-6 mb-3">
+                                <label class="form-label">Year Level <span class="text-danger">*</span></label>
+                                <select class="form-select" name="year_level" required>
+                                    <option value="">Select Year Level</option>
+                                    <?php for ($i = 1; $i <= 4; $i++): ?>
+                                        <option value="<?php echo $i; ?>"
+                                            <?php echo (isset($_POST['year_level']) && $_POST['year_level'] == $i) ? 'selected' : ''; ?>>
+                                            Year <?php echo $i; ?>
+                                        </option>
+                                    <?php endfor; ?>
+                                </select>
+                            </div>
+                            
+                            <div class="col-md-6 mb-3">
+                                <label class="form-label">School <span class="text-danger">*</span></label>
+                                <select class="form-select" name="school_id" required>
+                                    <option value="">Select School</option>
+                                    <?php foreach ($schools as $school): ?>
+                                        <option value="<?php echo $school['id']; ?>"
+                                            <?php echo (isset($_POST['school_id']) && $_POST['school_id'] == $school['id']) ? 'selected' : ''; ?>>
+                                            <?php echo htmlspecialchars($school['name']); ?>
+                                        </option>
+                                    <?php endforeach; ?>
+                                </select>
+                            </div>
+                            <div class="col-md-6 mb-3">
+                                <label class="form-label">Department <span class="text-danger">*</span></label>
+                                <select class="form-select" name="department_id" required>
+                                    <option value="">Select Department</option>
+                                    <?php foreach ($departments as $department): ?>
+                                        <option value="<?php echo $department['id']; ?>"
+                                            <?php echo (isset($_POST['department_id']) && $_POST['department_id'] == $department['id']) ? 'selected' : ''; ?>>
+                                            <?php echo htmlspecialchars($department['name']); ?>
+                                        </option>
+                                    <?php endforeach; ?>
+                                </select>
+                            </div>
+                            
+                            <div class="col-md-6 mb-3">
+                                <label class="form-label">Course <span class="text-danger">*</span></label>
+                                <select class="form-select" name="course_id" required>
+                                    <option value="">Select Course</option>
+                                    <?php foreach ($courses as $course): ?>
+                                        <option value="<?php echo $course['id']; ?>"
+                                            <?php echo (isset($_POST['course_id']) && $_POST['course_id'] == $course['id']) ? 'selected' : ''; ?>>
+                                            <?php echo htmlspecialchars($course['code']); ?> - <?php echo htmlspecialchars($course['name']); ?>
+                                        </option>
+                                    <?php endforeach; ?>
+                                </select>
+                            </div>
+                            <div class="col-md-6 mb-3">
+                                <label class="form-label">Birth Date</label>
+                                <input type="date" class="form-control" name="birth_date" 
+                                       max="<?php echo date('Y-m-d'); ?>"
+                                       value="<?php echo isset($_POST['birth_date']) ? htmlspecialchars($_POST['birth_date']) : ''; ?>">
+                            </div>
+                            
+                            <div class="col-md-6 mb-3">
+                                <label class="form-label">Email Address</label>
+                                <input type="email" class="form-control" name="email" 
+                                       placeholder="student@example.com" maxlength="100"
+                                       value="<?php echo isset($_POST['email']) ? htmlspecialchars($_POST['email']) : ''; ?>">
+                            </div>
+                            <div class="col-md-6 mb-3">
+                                <label class="form-label">Contact Number</label>
+                                <input type="tel" class="form-control" name="contact_number" 
+                                       placeholder="0912-345-6789"
+                                       value="<?php echo isset($_POST['contact_number']) ? htmlspecialchars($_POST['contact_number']) : ''; ?>">
+                                <div class="form-text">Format: 0912-345-6789 or 09123456789</div>
+                            </div>
+                            
+                            <div class="col-12 mb-3">
+                                <label class="form-label">Address</label>
+                                <textarea class="form-control" name="address" rows="3" 
+                                          placeholder="Complete address" maxlength="255"><?php echo isset($_POST['address']) ? htmlspecialchars($_POST['address']) : ''; ?></textarea>
+                            </div>
+                        </div>
+                        
+                        <div class="d-flex justify-content-between mt-4">
+                            <a href="manage_students.php" class="btn btn-secondary">
+                                <i class="bi bi-x-circle me-2"></i> Cancel
+                            </a>
+                            <button type="submit" class="btn btn-primary" name="add_student">
+                                <i class="bi bi-save me-2"></i> Save Student
+                            </button>
+                        </div>
+                    </form>
+                </div>
+            </div>
+        </div>
+        
+        <div class="col-lg-4">
+            <!-- Guidelines Card -->
+            <div class="card shadow mb-4">
+                <div class="card-header bg-info text-white">
+                    <h6 class="m-0 font-weight-bold">
+                        <i class="bi bi-info-circle me-2"></i> Guidelines
+                    </h6>
+                </div>
+                <div class="card-body">
+                    <ul class="list-group list-group-flush">
+                        <li class="list-group-item">
+                            <i class="bi bi-asterisk text-danger me-2"></i>
+                            Fields marked with <span class="text-danger">*</span> are required
+                        </li>
+                        <li class="list-group-item">
+                            <i class="bi bi-card-checklist me-2"></i>
+                            Student ID must be unique
+                        </li>
+                        <li class="list-group-item">
+                            <i class="bi bi-calendar me-2"></i>
+                            Birth date cannot be in the future
+                        </li>
+                        <li class="list-group-item">
+                            <i class="bi bi-envelope me-2"></i>
+                            Email must be valid format (optional)
+                        </li>
+                        <li class="list-group-item">
+                            <i class="bi bi-telephone me-2"></i>
+                            Contact number should include area code
+                        </li>
+                        <li class="list-group-item">
+                            <i class="bi bi-qr-code me-2"></i>
+                            QR code will be automatically generated
+                        </li>
+                    </ul>
+                </div>
+            </div>
+            
+            <!-- Quick Actions Card -->
+            <div class="card shadow">
+                <div class="card-header bg-warning text-dark">
+                    <h6 class="m-0 font-weight-bold">
+                        <i class="bi bi-lightning me-2"></i> Quick Actions
+                    </h6>
+                </div>
+                <div class="card-body">
+                    <div class="d-grid gap-2">
+                        <a href="manage_students.php" class="btn btn-outline-primary">
+                            <i class="bi bi-people me-2"></i> View All Students
+                        </a>
+                        <a href="import_students.php" class="btn btn-outline-success">
+                            <i class="bi bi-upload me-2"></i> Import Students
+                        </a>
+                    </div>
+                </div>
+            </div>
+        </div>
+    </div>
+</div>
+
+<?php 
+// SIMPLE JavaScript without complex validation
+$page_scripts = '
+<script>
+$(document).ready(function() {
+    // Simple form submission
+    $("#addStudentForm").submit(function(e) {
+        // Simple validation - just check if required fields are filled
+        let valid = true;
+        
+        // Check required fields
+        const requiredFields = [
+            "student_id", "full_name", "gender_id", 
+            "year_level", "school_id", "department_id", "course_id"
+        ];
+        
+        requiredFields.forEach(field => {
+            const element = $("[name=\'" + field + "\']");
+            const value = element.val().trim();
+            
+            if (!value || value === "" || value === "0") {
+                valid = false;
+                element.addClass("is-invalid");
+                element.after(\'<div class="invalid-feedback">This field is required.</div>\');
+            } else {
+                element.removeClass("is-invalid");
+                element.next(".invalid-feedback").remove();
+            }
+        });
+        
+        if (!valid) {
+            e.preventDefault();
+            alert("Please fill in all required fields marked with *");
+            return false;
+        }
+        
+        // Show loading state
+        $(this).find("button[type=\'submit\']").prop("disabled", true).html(\'<i class="bi bi-hourglass-split me-2"></i> Saving...\');
+        return true;
+    });
+    
+    // Remove error classes on input
+    $("input, select, textarea").on("input change", function() {
+        $(this).removeClass("is-invalid");
+        $(this).next(".invalid-feedback").remove();
+    });
+    
+    // Auto-focus first field
+    $("input[name=\'student_id\']").focus();
+});
+</script>
+';
+
+include '../includes/footer.php';
+?>
\ No newline at end of file
diff --git a/src-backup/admin/attendance.php b/src-backup/admin/attendance.php
new file mode 100644
index 0000000..c57992a
--- /dev/null
+++ b/src-backup/admin/attendance.php
@@ -0,0 +1,363 @@
+<?php
+require_once '../includes/config.php';
+
+// Check if user is logged in and is admin/teacher
+if (!isset($_SESSION['logged_in']) || $_SESSION['logged_in'] !== true || 
+    ($_SESSION['role'] !== 'admin' && $_SESSION['role'] !== 'teacher')) {
+    header('Location: ../auth/login.php');
+    exit();
+}
+
+$title = "QR Code Scanner";
+
+// Get active activities for today
+$activities = [];
+$sql = "SELECT * FROM activities WHERE status = 1 AND date = CURDATE() ORDER BY time_in ASC";
+$result = query($conn, $sql);
+while ($row = mysqli_fetch_assoc($result)) {
+    $activities[] = $row;
+}
+
+include '../includes/header.php';
+?>
+
+<div class="d-flex justify-content-between flex-wrap flex-md-nowrap align-items-center pt-3 pb-2 mb-3 border-bottom">
+    <h1 class="h2">QR Code Scanner</h1>
+    <div class="btn-toolbar mb-2 mb-md-0">
+        <div class="btn-group me-2">
+            <button class="btn btn-sm btn-outline-secondary" onclick="switchCamera()">
+                <i class="bi bi-camera-video"></i> Switch Camera
+            </button>
+            <button class="btn btn-sm btn-outline-secondary" onclick="toggleScanner()">
+                <i class="bi bi-power"></i> Toggle Scanner
+            </button>
+        </div>
+    </div>
+</div>
+
+<div class="row">
+    <div class="col-lg-8">
+        <div class="card shadow mb-4">
+            <div class="card-header py-3">
+                <h6 class="m-0 font-weight-bold text-primary">Scanner</h6>
+            </div>
+            <div class="card-body text-center">
+                <!-- Scanner Container -->
+                <div id="qr-reader" style="width: 100%; max-width: 500px; margin: 0 auto;"></div>
+                
+                <!-- Scan Result -->
+                <div id="scan-result" class="mt-4"></div>
+                
+                <!-- Manual Entry Form -->
+                <div class="mt-4">
+                    <h6 class="text-muted mb-3">Or enter student ID manually:</h6>
+                    <form id="manual-entry-form" class="row g-3">
+                        <div class="col-md-8">
+                            <input type="text" class="form-control" id="student_id" 
+                                   placeholder="Enter Student ID" required>
+                        </div>
+                        <div class="col-md-4">
+                            <button type="submit" class="btn btn-primary w-100">
+                                <i class="bi bi-check-circle"></i> Submit
+                            </button>
+                        </div>
+                    </form>
+                </div>
+            </div>
+        </div>
+    </div>
+    
+    <div class="col-lg-4">
+        <div class="card shadow mb-4">
+            <div class="card-header py-3">
+                <h6 class="m-0 font-weight-bold text-primary">Today's Activities</h6>
+            </div>
+            <div class="card-body">
+                <?php if (empty($activities)): ?>
+                    <div class="alert alert-warning">
+                        <i class="bi bi-info-circle"></i> No activities scheduled for today.
+                    </div>
+                <?php else: ?>
+                    <div class="list-group">
+                        <?php foreach ($activities as $activity): ?>
+                        <div class="list-group-item">
+                            <h6 class="mb-1"><?php echo $activity['name']; ?></h6>
+                            <small class="text-muted">
+                                <i class="bi bi-clock"></i> 
+                                <?php echo date('h:i A', strtotime($activity['time_in'])); ?> - 
+                                <?php echo date('h:i A', strtotime($activity['time_out'])); ?>
+                            </small><br>
+                            <small class="text-muted">
+                                <i class="bi bi-geo-alt"></i> <?php echo $activity['location']; ?>
+                            </small>
+                            <div class="mt-2">
+                                <span class="badge bg-<?php echo time() >= strtotime($activity['time_in']) && time() <= strtotime($activity['time_out']) ? 'success' : 'secondary'; ?>">
+                                    <?php echo time() >= strtotime($activity['time_in']) && time() <= strtotime($activity['time_out']) ? 'Active Now' : 'Scheduled'; ?>
+                                </span>
+                            </div>
+                        </div>
+                        <?php endforeach; ?>
+                    </div>
+                <?php endif; ?>
+            </div>
+        </div>
+        
+        <div class="card shadow">
+            <div class="card-header py-3">
+                <h6 class="m-0 font-weight-bold text-primary">Quick Stats</h6>
+            </div>
+            <div class="card-body">
+                <?php
+                $sql = "SELECT COUNT(*) as total FROM attendance WHERE DATE(created_at) = CURDATE()";
+                $result = query($conn, $sql);
+                $today_attendance = mysqli_fetch_assoc($result)['total'];
+                
+                $sql = "SELECT COUNT(*) as total FROM students WHERE status = 1";
+                $result = query($conn, $sql);
+                $total_students = mysqli_fetch_assoc($result)['total'];
+                ?>
+                <div class="d-flex justify-content-between mb-2">
+                    <span>Today's Attendance:</span>
+                    <strong><?php echo $today_attendance; ?></strong>
+                </div>
+                <div class="d-flex justify-content-between mb-2">
+                    <span>Total Students:</span>
+                    <strong><?php echo $total_students; ?></strong>
+                </div>
+                <div class="progress mb-3" style="height: 10px;">
+                    <div class="progress-bar" role="progressbar" 
+                         style="width: <?php echo $total_students > 0 ? ($today_attendance / $total_students * 100) : 0; ?>%">
+                    </div>
+                </div>
+                <small class="text-muted">
+                    <?php echo number_format($total_students > 0 ? ($today_attendance / $total_students * 100) : 0, 1); ?>% attendance rate today
+                </small>
+            </div>
+        </div>
+    </div>
+</div>
+
+<?php 
+$page_scripts = '
+<script src="https://unpkg.com/html5-qrcode"></script>
+<script>
+let html5QrCode;
+let isScanning = false;
+let cameraId = null;
+
+// Initialize scanner
+function initScanner() {
+    html5QrCode = new Html5Qrcode("qr-reader");
+}
+
+// Start scanner
+async function startScanner() {
+    if (isScanning) return;
+    
+    const devices = await Html5Qrcode.getCameras();
+    if (devices && devices.length > 0) {
+        const facingMode = cameraId ? { exact: cameraId } : { facingMode: "environment" };
+        const config = { fps: 10, qrbox: { width: 250, height: 250 } };
+        
+        try {
+            await html5QrCode.start(facingMode, config, onScanSuccess, onScanError);
+            isScanning = true;
+            document.getElementById("scan-result").innerHTML = \'<div class="alert alert-info"><i class="bi bi-info-circle"></i> Scanner started. Point camera at QR code.</div>\';
+        } catch (error) {
+            console.error("Scanner start error:", error);
+            document.getElementById("scan-result").innerHTML = \'<div class="alert alert-danger"><i class="bi bi-exclamation-triangle"></i> Failed to start camera: \' + error + \'</div>\';
+        }
+    } else {
+        document.getElementById("scan-result").innerHTML = \'<div class="alert alert-warning"><i class="bi bi-camera-video-off"></i> No camera found.</div>\';
+    }
+}
+
+// Stop scanner
+function stopScanner() {
+    if (!isScanning) return;
+    
+    html5QrCode.stop().then(() => {
+        isScanning = false;
+        document.getElementById("scan-result").innerHTML = \'<div class="alert alert-secondary"><i class="bi bi-info-circle"></i> Scanner stopped.</div>\';
+    }).catch(error => {
+        console.error("Scanner stop error:", error);
+    });
+}
+
+// Toggle scanner
+function toggleScanner() {
+    if (isScanning) {
+        stopScanner();
+    } else {
+        startScanner();
+    }
+}
+
+// Switch camera
+async function switchCamera() {
+    const devices = await Html5Qrcode.getCameras();
+    if (devices.length > 1) {
+        stopScanner();
+        // Switch to next camera
+        const currentIndex = devices.findIndex(device => device.id === cameraId);
+        const nextIndex = (currentIndex + 1) % devices.length;
+        cameraId = devices[nextIndex].id;
+        startScanner();
+    }
+}
+
+// Scan success callback
+function onScanSuccess(decodedText, decodedResult) {
+    // Show scanning indicator
+    document.getElementById("scan-result").innerHTML = \'<div class="alert alert-info"><div class="spinner-border spinner-border-sm me-2"></div>Processing QR code...</div>\';
+    
+    // Send to server
+    fetch(\'../api/scan_qr.php\', {
+        method: \'POST\',
+        headers: {
+            \'Content-Type\': \'application/json\',
+        },
+        body: JSON.stringify({ qr_code: decodedText })
+    })
+    .then(response => response.json())
+    .then(data => {
+        if (data.success) {
+            document.getElementById("scan-result").innerHTML = `
+                <div class="alert alert-success">
+                    <div class="d-flex align-items-center">
+                        <i class="bi bi-check-circle-fill me-3" style="font-size: 2rem;"></i>
+                        <div>
+                            <h5 class="mb-1">✓ Attendance Recorded!</h5>
+                            <p class="mb-1"><strong>Student:</strong> \${data.data.student_name}</p>
+                            <p class="mb-1"><strong>Activity:</strong> \${data.data.activity_name}</p>
+                            <p class="mb-1"><strong>Time:</strong> \${data.data.time}</p>
+                            <p class="mb-0"><strong>Status:</strong> <span class="badge bg-success">\${data.data.status}</span></p>
+                        </div>
+                    </div>
+                </div>
+            `;
+            
+            // Play success sound
+            playSound(\'success\');
+            
+        } else {
+            document.getElementById("scan-result").innerHTML = `
+                <div class="alert alert-danger">
+                    <i class="bi bi-exclamation-triangle me-2"></i>
+                    \${data.message}
+                </div>
+            `;
+            
+            // Play error sound
+            playSound(\'error\');
+        }
+    })
+    .catch(error => {
+        document.getElementById("scan-result").innerHTML = `
+            <div class="alert alert-danger">
+                <i class="bi bi-exclamation-triangle me-2"></i>
+                Network error: \${error}
+            </div>
+        `;
+    });
+}
+
+// Scan error callback
+function onScanError(error) {
+    // Don\'t show all errors to user
+    console.warn("QR Scan Error:", error);
+}
+
+// Manual entry form
+document.getElementById("manual-entry-form").addEventListener("submit", function(e) {
+    e.preventDefault();
+    
+    const studentId = document.getElementById("student_id").value.trim();
+    if (!studentId) return;
+    
+    // Show processing indicator
+    document.getElementById("scan-result").innerHTML = \'<div class="alert alert-info"><div class="spinner-border spinner-border-sm me-2"></div>Processing manual entry...</div>\';
+    
+    // Send to server
+    fetch(\'../api/manual_entry.php\', {
+        method: \'POST\',
+        headers: {
+            \'Content-Type\': \'application/json\',
+        },
+        body: JSON.stringify({ student_id: studentId })
+    })
+    .then(response => response.json())
+    .then(data => {
+        if (data.success) {
+            document.getElementById("scan-result").innerHTML = `
+                <div class="alert alert-success">
+                    <div class="d-flex align-items-center">
+                        <i class="bi bi-check-circle-fill me-3" style="font-size: 2rem;"></i>
+                        <div>
+                            <h5 class="mb-1">✓ Manual Entry Recorded!</h5>
+                            <p class="mb-1"><strong>Student:</strong> \${data.data.student_name}</p>
+                            <p class="mb-1"><strong>Activity:</strong> \${data.data.activity_name}</p>
+                            <p class="mb-0"><strong>Time:</strong> \${data.data.time}</p>
+                        </div>
+                    </div>
+                </div>
+            `;
+            
+            // Clear input
+            document.getElementById("student_id").value = \'\';
+            playSound(\'success\');
+            
+        } else {
+            document.getElementById("scan-result").innerHTML = `
+                <div class="alert alert-danger">
+                    <i class="bi bi-exclamation-triangle me-2"></i>
+                    \${data.message}
+                </div>
+            `;
+            playSound(\'error\');
+        }
+    })
+    .catch(error => {
+        document.getElementById("scan-result").innerHTML = `
+            <div class="alert alert-danger">
+                <i class="bi bi-exclamation-triangle me-2"></i>
+                Network error: \${error}
+            </div>
+        `;
+    });
+});
+
+// Play sound
+function playSound(type) {
+    const audioContext = new (window.AudioContext || window.webkitAudioContext)();
+    const oscillator = audioContext.createOscillator();
+    const gainNode = audioContext.createGain();
+    
+    oscillator.connect(gainNode);
+    gainNode.connect(audioContext.destination);
+    
+    if (type === \'success\') {
+        oscillator.frequency.setValueAtTime(523.25, audioContext.currentTime);
+        oscillator.frequency.setValueAtTime(659.25, audioContext.currentTime + 0.1);
+        oscillator.frequency.setValueAtTime(783.99, audioContext.currentTime + 0.2);
+    } else {
+        oscillator.frequency.setValueAtTime(200, audioContext.currentTime);
+    }
+    
+    gainNode.gain.setValueAtTime(0.1, audioContext.currentTime);
+    gainNode.gain.exponentialRampToValueAtTime(0.01, audioContext.currentTime + 0.3);
+    
+    oscillator.start();
+    oscillator.stop(audioContext.currentTime + 0.3);
+}
+
+// Initialize scanner when page loads
+document.addEventListener("DOMContentLoaded", function() {
+    initScanner();
+    startScanner();
+});
+</script>
+';
+
+include '../includes/footer.php';
+?>
\ No newline at end of file
diff --git a/src-backup/admin/dashboard.php b/src-backup/admin/dashboard.php
new file mode 100644
index 0000000..29ecc2e
--- /dev/null
+++ b/src-backup/admin/dashboard.php
@@ -0,0 +1,391 @@
+<?php
+require_once '../includes/config.php';
+
+// Check if user is logged in and is admin
+if (!isset($_SESSION['logged_in']) || $_SESSION['logged_in'] !== true || $_SESSION['role'] !== 'admin') {
+    header('Location: ../auth/login.php');
+    exit();
+}
+
+$title = "Admin Dashboard";
+
+// Get statistics
+$stats = [];
+
+// Total Students
+$sql = "SELECT COUNT(*) as total FROM students WHERE status = 1";
+$result = query($conn, $sql);
+$stats['total_students'] = mysqli_fetch_assoc($result)['total'];
+
+// Total Users
+$sql = "SELECT COUNT(*) as total FROM users WHERE status = 1";
+$result = query($conn, $sql);
+$stats['total_users'] = mysqli_fetch_assoc($result)['total'];
+
+// Upcoming Activities
+$sql = "SELECT COUNT(*) as total FROM activities WHERE status = 1 AND date >= CURDATE()";
+$result = query($conn, $sql);
+$stats['upcoming_activities'] = mysqli_fetch_assoc($result)['total'];
+
+// Today's Attendance
+$sql = "SELECT COUNT(*) as total FROM attendance WHERE DATE(created_at) = CURDATE()";
+$result = query($conn, $sql);
+$stats['today_attendance'] = mysqli_fetch_assoc($result)['total'];
+
+// Get recent attendance
+$recent_attendance = [];
+$sql = "
+    SELECT a.*, s.full_name, s.student_id, ac.name as activity_name 
+    FROM attendance a 
+    JOIN students s ON a.student_id = s.id 
+    JOIN activities ac ON a.activity_id = ac.id 
+    ORDER BY a.created_at DESC 
+    LIMIT 10
+";
+$result = query($conn, $sql);
+while ($row = mysqli_fetch_assoc($result)) {
+    $recent_attendance[] = $row;
+}
+
+// Get upcoming activities
+$upcoming_activities = [];
+$sql = "
+    SELECT * FROM activities 
+    WHERE date >= CURDATE() AND status = 1 
+    ORDER BY date ASC, time_in ASC 
+    LIMIT 5
+";
+$result = query($conn, $sql);
+while ($row = mysqli_fetch_assoc($result)) {
+    $upcoming_activities[] = $row;
+}
+
+include '../includes/header.php';
+?>
+
+<!-- Page Header -->
+<div class="d-flex justify-content-between align-items-center mb-4">
+    <div>
+        <h1 class="h3 mb-2">Dashboard Overview</h1>
+        <p class="text-muted">Welcome back, <?php echo $_SESSION['full_name']; ?>! Here's what's happening today.</p>
+    </div>
+    <div class="btn-group">
+        <button class="btn btn-primary" onclick="window.print()">
+            <i class="bi bi-printer me-2"></i> Print Report
+        </button>
+        <a href="attendance.php" class="btn btn-success">
+            <i class="bi bi-qr-code-scan me-2"></i> Scan QR
+        </a>
+    </div>
+</div>
+
+<!-- Statistics Cards -->
+<div class="row mb-4">
+    <div class="col-xl-3 col-md-6 mb-4">
+        <div class="card stat-card border-left-primary">
+            <div class="card-body">
+                <div class="row align-items-center">
+                    <div class="col-8">
+                        <div class="text-uppercase text-primary mb-1">Total Students</div>
+                        <div class="h2 font-weight-bold"><?php echo $stats['total_students']; ?></div>
+                        <div class="text-muted">Active enrolled</div>
+                    </div>
+                    <div class="col-4 text-end">
+                        <i class="bi bi-people-fill text-primary" style="font-size: 3rem; opacity: 0.7;"></i>
+                    </div>
+                </div>
+            </div>
+        </div>
+    </div>
+
+    <div class="col-xl-3 col-md-6 mb-4">
+        <div class="card stat-card border-left-success">
+            <div class="card-body">
+                <div class="row align-items-center">
+                    <div class="col-8">
+                        <div class="text-uppercase text-success mb-1">System Users</div>
+                        <div class="h2 font-weight-bold"><?php echo $stats['total_users']; ?></div>
+                        <div class="text-muted">Admin & Teachers</div>
+                    </div>
+                    <div class="col-4 text-end">
+                        <i class="bi bi-person-badge-fill text-success" style="font-size: 3rem; opacity: 0.7;"></i>
+                    </div>
+                </div>
+            </div>
+        </div>
+    </div>
+
+    <div class="col-xl-3 col-md-6 mb-4">
+        <div class="card stat-card border-left-info">
+            <div class="card-body">
+                <div class="row align-items-center">
+                    <div class="col-8">
+                        <div class="text-uppercase text-info mb-1">Upcoming Activities</div>
+                        <div class="h2 font-weight-bold"><?php echo $stats['upcoming_activities']; ?></div>
+                        <div class="text-muted">Scheduled events</div>
+                    </div>
+                    <div class="col-4 text-end">
+                        <i class="bi bi-calendar-event-fill text-info" style="font-size: 3rem; opacity: 0.7;"></i>
+                    </div>
+                </div>
+            </div>
+        </div>
+    </div>
+
+    <div class="col-xl-3 col-md-6 mb-4">
+        <div class="card stat-card border-left-warning">
+            <div class="card-body">
+                <div class="row align-items-center">
+                    <div class="col-8">
+                        <div class="text-uppercase text-warning mb-1">Today's Attendance</div>
+                        <div class="h2 font-weight-bold"><?php echo $stats['today_attendance']; ?></div>
+                        <div class="text-muted">Records today</div>
+                    </div>
+                    <div class="col-4 text-end">
+                        <i class="bi bi-clock-history text-warning" style="font-size: 3rem; opacity: 0.7;"></i>
+                    </div>
+                </div>
+            </div>
+        </div>
+    </div>
+</div>
+
+<!-- Main Content Row -->
+<div class="row">
+    <!-- Recent Attendance -->
+    <div class="col-lg-8">
+        <div class="card shadow mb-4">
+            <div class="card-header d-flex justify-content-between align-items-center">
+                <h6 class="m-0 font-weight-bold">
+                    <i class="bi bi-clock-history me-2"></i> Recent Attendance
+                </h6>
+                <a href="reports.php" class="btn btn-sm btn-primary">View All</a>
+            </div>
+            <div class="card-body p-0">
+                <div class="table-responsive">
+                    <table class="table table-hover mb-0" id="recentAttendance">
+                        <thead class="table-light">
+                            <tr>
+                                <th>Student</th>
+                                <th>Activity</th>
+                                <th>Time In</th>
+                                <th>Status</th>
+                            </tr>
+                        </thead>
+                        <tbody>
+                            <?php if (empty($recent_attendance)): ?>
+                                <tr>
+                                    <td colspan="4" class="text-center py-4">
+                                        <i class="bi bi-inbox text-muted" style="font-size: 3rem;"></i>
+                                        <p class="mt-2">No attendance records yet</p>
+                                    </td>
+                                </tr>
+                            <?php else: ?>
+                                <?php foreach ($recent_attendance as $attendance): ?>
+                                <tr>
+                                    <td>
+                                        <div class="d-flex align-items-center">
+                                            <div class="avatar me-3">
+                                                <div class="bg-primary rounded-circle p-2 text-white">
+                                                    <i class="bi bi-person"></i>
+                                                </div>
+                                            </div>
+                                            <div>
+                                                <strong><?php echo $attendance['full_name']; ?></strong><br>
+                                                <small class="text-muted"><?php echo $attendance['student_id']; ?></small>
+                                            </div>
+                                        </div>
+                                    </td>
+                                    <td>
+                                        <div class="fw-bold"><?php echo $attendance['activity_name']; ?></div>
+                                        <small class="text-muted"><?php echo date('M d, Y', strtotime($attendance['created_at'])); ?></small>
+                                    </td>
+                                    <td>
+                                        <?php 
+                                        if ($attendance['time_in']) {
+                                            echo '<span class="badge bg-light text-dark">';
+                                            echo '<i class="bi bi-clock me-1"></i>';
+                                            echo date('h:i A', strtotime($attendance['time_in']));
+                                            echo '</span>';
+                                        } else {
+                                            echo '<span class="badge bg-secondary">Pending</span>';
+                                        }
+                                        ?>
+                                    </td>
+                                    <td>
+                                        <?php
+                                        $status = $attendance['status'] ?? 'pending';
+                                        $badge_class = 'secondary';
+                                        $icon = 'clock';
+                                        
+                                        switch($status) {
+                                            case 'present': 
+                                                $badge_class = 'success'; 
+                                                $icon = 'check-circle';
+                                                break;
+                                            case 'late': 
+                                                $badge_class = 'warning'; 
+                                                $icon = 'clock-history';
+                                                break;
+                                            case 'absent': 
+                                                $badge_class = 'danger'; 
+                                                $icon = 'x-circle';
+                                                break;
+                                            case 'excused': 
+                                                $badge_class = 'info'; 
+                                                $icon = 'calendar-check';
+                                                break;
+                                            default: 
+                                                $badge_class = 'secondary';
+                                                $icon = 'clock';
+                                        }
+                                        ?>
+                                        <span class="badge bg-<?php echo $badge_class; ?>">
+                                            <i class="bi bi-<?php echo $icon; ?> me-1"></i>
+                                            <?php echo ucfirst($status); ?>
+                                        </span>
+                                    </td>
+                                </tr>
+                                <?php endforeach; ?>
+                            <?php endif; ?>
+                        </tbody>
+                    </table>
+                </div>
+            </div>
+        </div>
+    </div>
+
+    <!-- Upcoming Activities -->
+    <div class="col-lg-4">
+        <div class="card shadow mb-4">
+            <div class="card-header d-flex justify-content-between align-items-center">
+                <h6 class="m-0 font-weight-bold">
+                    <i class="bi bi-calendar-event me-2"></i> Upcoming Activities
+                </h6>
+                <a href="manage_activities.php" class="btn btn-sm btn-primary">View All</a>
+            </div>
+            <div class="card-body p-0">
+                <div class="list-group list-group-flush">
+                    <?php if (empty($upcoming_activities)): ?>
+                        <div class="text-center py-4">
+                            <i class="bi bi-calendar-x text-muted" style="font-size: 3rem;"></i>
+                            <p class="mt-2">No upcoming activities</p>
+                        </div>
+                    <?php else: ?>
+                        <?php foreach ($upcoming_activities as $activity): ?>
+                        <div class="list-group-item border-0 px-4 py-3">
+                            <div class="d-flex align-items-start">
+                                <div class="flex-shrink-0">
+                                    <div class="calendar-icon bg-primary text-white rounded text-center p-2" style="width: 60px;">
+                                        <div class="fw-bold" style="font-size: 1.5rem;"><?php echo date('d', strtotime($activity['date'])); ?></div>
+                                        <div class="small"><?php echo date('M', strtotime($activity['date'])); ?></div>
+                                    </div>
+                                </div>
+                                <div class="flex-grow-1 ms-3">
+                                    <h6 class="mb-1 fw-bold"><?php echo $activity['name']; ?></h6>
+                                    <small class="text-muted d-block">
+                                        <i class="bi bi-clock"></i> 
+                                        <?php echo date('h:i A', strtotime($activity['time_in'])) . ' - ' . date('h:i A', strtotime($activity['time_out'])); ?>
+                                    </small>
+                                    <small class="text-muted d-block">
+                                        <i class="bi bi-geo-alt"></i> <?php echo $activity['location']; ?>
+                                    </small>
+                                    <div class="mt-2">
+                                        <?php 
+                                        $activity_date = strtotime($activity['date'] . ' ' . $activity['time_in']);
+                                        $current_time = time();
+                                        
+                                        if ($current_time >= $activity_date) {
+                                            echo '<span class="badge bg-success">Active Now</span>';
+                                        } else {
+                                            $days_diff = floor(($activity_date - $current_time) / (60 * 60 * 24));
+                                            if ($days_diff == 0) {
+                                                echo '<span class="badge bg-warning">Today</span>';
+                                            } elseif ($days_diff == 1) {
+                                                echo '<span class="badge bg-info">Tomorrow</span>';
+                                            } else {
+                                                echo '<span class="badge bg-secondary">In ' . $days_diff . ' days</span>';
+                                            }
+                                        }
+                                        ?>
+                                    </div>
+                                </div>
+                            </div>
+                        </div>
+                        <?php endforeach; ?>
+                    <?php endif; ?>
+                </div>
+            </div>
+        </div>
+        
+        <!-- Quick Stats -->
+        <div class="card shadow">
+            <div class="card-header">
+                <h6 class="m-0 font-weight-bold">
+                    <i class="bi bi-bar-chart me-2"></i> Quick Stats
+                </h6>
+            </div>
+            <div class="card-body">
+                <?php
+                // Calculate attendance percentage
+                $percentage = $stats['total_students'] > 0 ? 
+                    round(($stats['today_attendance'] / $stats['total_students']) * 100, 1) : 0;
+                
+                // Get today's date for display
+                $today = date('l, F j, Y');
+                ?>
+                <h5 class="text-center mb-3"><?php echo $today; ?></h5>
+                
+                <div class="mb-3">
+                    <div class="d-flex justify-content-between mb-1">
+                        <span>Attendance Rate</span>
+                        <strong><?php echo $percentage; ?>%</strong>
+                    </div>
+                    <div class="progress" style="height: 10px;">
+                        <div class="progress-bar progress-bar-striped progress-bar-animated" 
+                             role="progressbar" 
+                             style="width: <?php echo $percentage; ?>%"
+                             aria-valuenow="<?php echo $percentage; ?>" 
+                             aria-valuemin="0" 
+                             aria-valuemax="100">
+                        </div>
+                    </div>
+                </div>
+                
+                <div class="row text-center">
+                    <div class="col-6">
+                        <div class="p-3 border rounded">
+                            <div class="h4 mb-1"><?php echo $stats['today_attendance']; ?></div>
+                            <small class="text-muted">Scanned Today</small>
+                        </div>
+                    </div>
+                    <div class="col-6">
+                        <div class="p-3 border rounded">
+                            <div class="h4 mb-1"><?php echo $stats['total_students'] - $stats['today_attendance']; ?></div>
+                            <small class="text-muted">Remaining</small>
+                        </div>
+                    </div>
+                </div>
+            </div>
+        </div>
+    </div>
+</div>
+
+<?php 
+$page_scripts = '
+<script>
+$(document).ready(function() {
+    $("#recentAttendance").DataTable({
+        pageLength: 5,
+        lengthMenu: [[5, 10, 25, -1], [5, 10, 25, "All"]],
+        order: [[2, "desc"]],
+        language: {
+            search: "_INPUT_",
+            searchPlaceholder: "Search attendance..."
+        }
+    });
+});
+</script>
+';
+include '../includes/footer.php';
+?>
\ No newline at end of file
diff --git a/src-backup/admin/deactivate_student.php b/src-backup/admin/deactivate_student.php
new file mode 100644
index 0000000..582ea4b
--- /dev/null
+++ b/src-backup/admin/deactivate_student.php
@@ -0,0 +1,171 @@
+<?php
+require_once '../includes/config.php';
+
+// Check if user is logged in and is admin
+if (!isset($_SESSION['logged_in']) || $_SESSION['logged_in'] !== true || $_SESSION['role'] !== 'admin') {
+    header('Location: ../auth/login.php');
+    exit();
+}
+
+$title = "Deactivate Student";
+
+// Get student ID
+$student_id = intval($_GET['id'] ?? 0);
+
+if ($student_id <= 0) {
+    $_SESSION['message'] = 'Invalid student ID!';
+    $_SESSION['message_type'] = 'danger';
+    header('Location: manage_students.php');
+    exit();
+}
+
+// Handle form submission
+if ($_SERVER['REQUEST_METHOD'] === 'POST') {
+    $status = $_POST['status'] == 'active' ? 1 : 0;
+    $reason = !empty($_POST['reason']) ? mysqli_real_escape_string($conn, $_POST['reason']) : 'No reason provided';
+    
+    // Update student status
+    $sql = "UPDATE students SET 
+            status = ?,
+            updated_at = NOW()
+            WHERE id = ?";
+    
+    $stmt = mysqli_prepare($conn, $sql);
+    mysqli_stmt_bind_param($stmt, 'ii', $status, $student_id);
+    
+    if (mysqli_stmt_execute($stmt)) {
+        // Log the status change (optional - if you have logs table)
+        $log_sql = "INSERT INTO student_status_log (student_id, status, reason, changed_by, changed_at) 
+                   VALUES (?, ?, ?, ?, NOW())";
+        $log_stmt = mysqli_prepare($conn, $log_sql);
+        mysqli_stmt_bind_param($log_stmt, 'iisi', $student_id, $status, $reason, $_SESSION['user_id']);
+        mysqli_stmt_execute($log_stmt);
+        mysqli_stmt_close($log_stmt);
+        
+        $action = $status == 1 ? 'activated' : 'deactivated';
+        $_SESSION['message'] = "Student $action successfully!";
+        $_SESSION['message_type'] = 'success';
+        header('Location: manage_students.php?msg=updated');
+        exit();
+    } else {
+        $_SESSION['message'] = 'Error updating student status: ' . mysqli_error($conn);
+        $_SESSION['message_type'] = 'danger';
+        header('Location: manage_students.php');
+        exit();
+    }
+    
+    mysqli_stmt_close($stmt);
+}
+
+// Get student data
+$sql = "SELECT * FROM students WHERE id = ?";
+$stmt = mysqli_prepare($conn, $sql);
+mysqli_stmt_bind_param($stmt, 'i', $student_id);
+mysqli_stmt_execute($stmt);
+$result = mysqli_stmt_get_result($stmt);
+
+if (!$result || mysqli_num_rows($result) == 0) {
+    $_SESSION['message'] = 'Student not found!';
+    $_SESSION['message_type'] = 'danger';
+    header('Location: manage_students.php');
+    exit();
+}
+
+$student = mysqli_fetch_assoc($result);
+mysqli_stmt_close($stmt);
+
+include '../includes/header.php';
+?>
+
+<!-- Page Header -->
+<div class="d-flex justify-content-between align-items-center mb-4">
+    <div>
+        <h1 class="h3 mb-2"><?php echo $student['status'] == 1 ? 'Deactivate' : 'Activate'; ?> Student</h1>
+        <p class="text-muted">Change student account status.</p>
+    </div>
+    <div>
+        <a href="manage_students.php" class="btn btn-secondary">
+            <i class="bi bi-arrow-left me-2"></i> Back to Students
+        </a>
+    </div>
+</div>
+
+<div class="row">
+    <div class="col-lg-6 mx-auto">
+        <div class="card shadow">
+            <div class="card-header">
+                <h5 class="mb-0">
+                    <i class="bi bi-person me-2"></i> 
+                    Student: <?php echo htmlspecialchars($student['full_name']); ?>
+                </h5>
+            </div>
+            <div class="card-body">
+                <div class="alert alert-info">
+                    <i class="bi bi-info-circle me-2"></i>
+                    <strong>Note:</strong> <?php echo $student['status'] == 1 ? 'Deactivating' : 'Activating'; ?> a student will <?php echo $student['status'] == 1 ? 'prevent' : 'allow'; ?> them from accessing the system.
+                </div>
+                
+                <form method="POST" action="">
+                    <div class="mb-3">
+                        <label class="form-label">Current Status</label>
+                        <div class="form-control bg-light">
+                            <?php if ($student['status'] == 1): ?>
+                                <span class="badge bg-success">
+                                    <i class="bi bi-check-circle me-1"></i> Active
+                                </span>
+                                <small class="text-muted ms-2">- Student can login and access system</small>
+                            <?php else: ?>
+                                <span class="badge bg-danger">
+                                    <i class="bi bi-x-circle me-1"></i> Inactive
+                                </span>
+                                <small class="text-muted ms-2">- Student cannot login</small>
+                            <?php endif; ?>
+                        </div>
+                    </div>
+                    
+                    <div class="mb-3">
+                        <label class="form-label">Change Status To</label>
+                        <div class="form-check mb-2">
+                            <input class="form-check-input" type="radio" name="status" 
+                                   value="active" id="statusActive"
+                                   <?php echo $student['status'] == 0 ? 'checked' : ''; ?>>
+                            <label class="form-check-label" for="statusActive">
+                                <span class="badge bg-success">Active</span>
+                                <small class="text-muted d-block mt-1">Student can login and use all features</small>
+                            </label>
+                        </div>
+                        <div class="form-check">
+                            <input class="form-check-input" type="radio" name="status" 
+                                   value="inactive" id="statusInactive"
+                                   <?php echo $student['status'] == 1 ? 'checked' : ''; ?>>
+                            <label class="form-check-label" for="statusInactive">
+                                <span class="badge bg-danger">Inactive</span>
+                                <small class="text-muted d-block mt-1">Student cannot login to the system</small>
+                            </label>
+                        </div>
+                    </div>
+                    
+                    <div class="mb-3">
+                        <label class="form-label">Reason for Change <span class="text-muted">(Optional)</span></label>
+                        <textarea class="form-control" name="reason" rows="3" 
+                                  placeholder="Enter reason for status change..."></textarea>
+                        <small class="text-muted">This will be logged for audit purposes.</small>
+                    </div>
+                    
+                    <div class="mt-4">
+                        <button type="submit" class="btn btn-primary">
+                            <i class="bi bi-save me-1"></i> Update Status
+                        </button>
+                        <a href="manage_students.php" class="btn btn-secondary">Cancel</a>
+                        <a href="delete_student.php?id=<?php echo $student['id']; ?>" 
+                           class="btn btn-outline-danger float-end">
+                            <i class="bi bi-trash me-1"></i> Delete Instead
+                        </a>
+                    </div>
+                </form>
+            </div>
+        </div>
+    </div>
+</div>
+
+<?php include '../includes/footer.php'; ?>
\ No newline at end of file
diff --git a/src-backup/admin/edit_activity.php b/src-backup/admin/edit_activity.php
new file mode 100644
index 0000000..4009fdc
--- /dev/null
+++ b/src-backup/admin/edit_activity.php
@@ -0,0 +1,287 @@
+<?php
+require_once '../includes/config.php';
+
+// Check if user is logged in and is admin
+if (!isset($_SESSION['logged_in']) || $_SESSION['logged_in'] !== true || $_SESSION['role'] !== 'admin') {
+    header('Location: ../auth/login.php');
+    exit();
+}
+
+$title = "Edit Activity";
+
+// Get activity ID
+$activity_id = $_GET['id'] ?? 0;
+
+if ($activity_id <= 0) {
+    $_SESSION['message'] = 'Invalid activity ID!';
+    $_SESSION['message_type'] = 'danger';
+    header('Location: manage_activities.php');
+    exit();
+}
+
+// Get activity data
+$sql = "SELECT * FROM activities WHERE id = $activity_id";
+$result = query($conn, $sql);
+if (!$result || mysqli_num_rows($result) == 0) {
+    $_SESSION['message'] = 'Activity not found!';
+    $_SESSION['message_type'] = 'danger';
+    header('Location: manage_activities.php');
+    exit();
+}
+
+$activity = mysqli_fetch_assoc($result);
+
+// Initialize variables
+$message = '';
+$message_type = '';
+
+// Handle form submission
+if ($_SERVER['REQUEST_METHOD'] === 'POST') {
+    // Validate required fields
+    $required_fields = ['name', 'date', 'time_in', 'time_out', 'location', 'required_students'];
+    $valid = true;
+    
+    foreach ($required_fields as $field) {
+        if (empty($_POST[$field])) {
+            $message = "Please fill all required fields!";
+            $message_type = 'danger';
+            $valid = false;
+            break;
+        }
+    }
+    
+    if ($valid) {
+        $activity_data = [
+            'name' => escape($conn, $_POST['name']),
+            'date' => $_POST['date'],
+            'time_in' => $_POST['time_in'],
+            'time_out' => $_POST['time_out'],
+            'description' => escape($conn, $_POST['description']),
+            'location' => escape($conn, $_POST['location']),
+            'required_students' => $_POST['required_students'],
+            'course_id' => $_POST['course_id'] ? intval($_POST['course_id']) : null,
+            'department_id' => $_POST['department_id'] ? intval($_POST['department_id']) : null,
+            'status' => isset($_POST['status']) ? 1 : 0
+        ];
+
+        // Validate time
+        if (strtotime($activity_data['time_out']) <= strtotime($activity_data['time_in'])) {
+            $message = 'Time Out must be later than Time In!';
+            $message_type = 'danger';
+        } else {
+            $sql = "UPDATE activities SET
+                name = '{$activity_data['name']}',
+                date = '{$activity_data['date']}',
+                time_in = '{$activity_data['time_in']}',
+                time_out = '{$activity_data['time_out']}',
+                description = '{$activity_data['description']}',
+                location = '{$activity_data['location']}',
+                required_students = '{$activity_data['required_students']}',
+                course_id = " . ($activity_data['course_id'] ? $activity_data['course_id'] : 'NULL') . ",
+                department_id = " . ($activity_data['department_id'] ? $activity_data['department_id'] : 'NULL') . ",
+                status = {$activity_data['status']},
+                updated_at = NOW()
+                WHERE id = $activity_id";
+
+            if (query($conn, $sql)) {
+                $_SESSION['message'] = 'Activity updated successfully!';
+                $_SESSION['message_type'] = 'success';
+                header('Location: manage_activities.php');
+                exit();
+            } else {
+                $message = 'Error updating activity: ' . mysqli_error($conn);
+                $message_type = 'danger';
+            }
+        }
+    }
+}
+
+// Get dropdown data
+$courses = [];
+$departments = [];
+
+// Courses
+$result = query($conn, "SELECT * FROM courses WHERE status = 1 ORDER BY code");
+while ($row = mysqli_fetch_assoc($result)) {
+    $courses[] = $row;
+}
+
+// Departments
+$result = query($conn, "SELECT * FROM departments WHERE status = 1 ORDER BY code");
+while ($row = mysqli_fetch_assoc($result)) {
+    $departments[] = $row;
+}
+
+include '../includes/header.php';
+?>
+
+<!-- Page Header -->
+<div class="d-flex justify-content-between align-items-center mb-4">
+    <div>
+        <h1 class="h3 mb-2">Edit Activity</h1>
+        <p class="text-muted">Update activity details.</p>
+    </div>
+    <div>
+        <a href="manage_activities.php" class="btn btn-secondary">
+            <i class="bi bi-arrow-left me-2"></i> Back to Activities
+        </a>
+    </div>
+</div>
+
+<!-- Message Alert -->
+<?php if ($message): ?>
+<div class="alert alert-<?php echo $message_type; ?> alert-dismissible fade show">
+    <?php echo $message; ?>
+    <button type="button" class="btn-close" data-bs-dismiss="alert"></button>
+</div>
+<?php endif; ?>
+
+<!-- Edit Activity Form -->
+<div class="card shadow">
+    <div class="card-header">
+        <h5 class="mb-0">
+            <i class="bi bi-pencil me-2"></i> Edit Activity: <?php echo $activity['name']; ?>
+        </h5>
+    </div>
+    <div class="card-body">
+        <form method="POST" action="" id="editActivityForm">
+            <input type="hidden" name="activity_id" value="<?php echo $activity['id']; ?>">
+            
+            <div class="row">
+                <div class="col-md-12 mb-3">
+                    <label class="form-label">Activity Name <span class="text-danger">*</span></label>
+                    <input type="text" class="form-control" name="name" required 
+                           value="<?php echo htmlspecialchars($activity['name']); ?>">
+                </div>
+                
+                <div class="col-md-6 mb-3">
+                    <label class="form-label">Date <span class="text-danger">*</span></label>
+                    <input type="date" class="form-control" name="date" required 
+                           value="<?php echo $activity['date']; ?>">
+                </div>
+                <div class="col-md-3 mb-3">
+                    <label class="form-label">Time In <span class="text-danger">*</span></label>
+                    <input type="time" class="form-control" name="time_in" required 
+                           value="<?php echo $activity['time_in']; ?>">
+                </div>
+                <div class="col-md-3 mb-3">
+                    <label class="form-label">Time Out <span class="text-danger">*</span></label>
+                    <input type="time" class="form-control" name="time_out" required 
+                           value="<?php echo $activity['time_out']; ?>">
+                </div>
+                
+                <div class="col-md-12 mb-3">
+                    <label class="form-label">Location <span class="text-danger">*</span></label>
+                    <input type="text" class="form-control" name="location" required 
+                           value="<?php echo htmlspecialchars($activity['location']); ?>">
+                </div>
+                
+                <div class="col-md-12 mb-3">
+                    <label class="form-label">Description</label>
+                    <textarea class="form-control" name="description" rows="3"><?php echo htmlspecialchars($activity['description']); ?></textarea>
+                </div>
+                
+                <div class="col-md-12 mb-3">
+                    <label class="form-label">Participants <span class="text-danger">*</span></label>
+                    <select class="form-select" name="required_students" required id="participantType" onchange="toggleParticipantSelection()">
+                        <option value="all" <?php echo $activity['required_students'] == 'all' ? 'selected' : ''; ?>>All Students</option>
+                        <option value="specific_course" <?php echo $activity['required_students'] == 'specific_course' ? 'selected' : ''; ?>>Specific Course</option>
+                        <option value="specific_department" <?php echo $activity['required_students'] == 'specific_department' ? 'selected' : ''; ?>>Specific Department</option>
+                    </select>
+                </div>
+                
+                <div class="col-md-6 mb-3" id="courseSelection" style="<?php echo $activity['required_students'] == 'specific_course' ? '' : 'display: none;'; ?>">
+                    <label class="form-label">Select Course</label>
+                    <select class="form-select" name="course_id" id="courseSelect">
+                        <option value="">Select Course</option>
+                        <?php foreach ($courses as $course): ?>
+                            <option value="<?php echo $course['id']; ?>"
+                                <?php echo $activity['course_id'] == $course['id'] ? 'selected' : ''; ?>>
+                                <?php echo $course['code']; ?> - <?php echo $course['name']; ?>
+                            </option>
+                        <?php endforeach; ?>
+                    </select>
+                </div>
+                
+                <div class="col-md-6 mb-3" id="departmentSelection" style="<?php echo $activity['required_students'] == 'specific_department' ? '' : 'display: none;'; ?>">
+                    <label class="form-label">Select Department</label>
+                    <select class="form-select" name="department_id" id="departmentSelect">
+                        <option value="">Select Department</option>
+                        <?php foreach ($departments as $department): ?>
+                            <option value="<?php echo $department['id']; ?>"
+                                <?php echo $activity['department_id'] == $department['id'] ? 'selected' : ''; ?>>
+                                <?php echo $department['name']; ?>
+                            </option>
+                        <?php endforeach; ?>
+                    </select>
+                </div>
+                
+                <div class="col-12 mb-3">
+                    <div class="form-check form-switch">
+                        <input class="form-check-input" type="checkbox" role="switch" 
+                               name="status" id="statusSwitch" value="1"
+                               <?php echo $activity['status'] == 1 ? 'checked' : ''; ?>>
+                        <label class="form-check-label" for="statusSwitch">
+                            Active Activity
+                        </label>
+                    </div>
+                </div>
+            </div>
+            
+            <div class="mt-4">
+                <button type="submit" class="btn btn-primary">
+                    <i class="bi bi-save me-1"></i> Update Activity
+                </button>
+                <a href="manage_activities.php" class="btn btn-secondary">Cancel</a>
+            </div>
+        </form>
+    </div>
+</div>
+
+<?php 
+$page_scripts = '
+<script>
+function toggleParticipantSelection() {
+    const participantType = document.getElementById("participantType").value;
+    const courseSelection = document.getElementById("courseSelection");
+    const departmentSelection = document.getElementById("departmentSelection");
+    
+    if (participantType === "specific_course") {
+        courseSelection.style.display = "block";
+        departmentSelection.style.display = "none";
+        document.getElementById("courseSelect").required = true;
+        document.getElementById("departmentSelect").required = false;
+    } else if (participantType === "specific_department") {
+        courseSelection.style.display = "none";
+        departmentSelection.style.display = "block";
+        document.getElementById("courseSelect").required = false;
+        document.getElementById("departmentSelect").required = true;
+    } else {
+        courseSelection.style.display = "none";
+        departmentSelection.style.display = "none";
+        document.getElementById("courseSelect").required = false;
+        document.getElementById("departmentSelect").required = false;
+    }
+}
+
+// Time validation
+document.addEventListener("DOMContentLoaded", function() {
+    // Initialize participant selection
+    toggleParticipantSelection();
+    
+    document.getElementById("editActivityForm").addEventListener("submit", function(e) {
+        const timeIn = document.querySelector("input[name=\'time_in\']").value;
+        const timeOut = document.querySelector("input[name=\'time_out\']").value;
+        
+        if (timeIn && timeOut && timeOut <= timeIn) {
+            e.preventDefault();
+            alert("Time Out must be later than Time In!");
+            return false;
+        }
+    });
+});
+</script>
+';
+
+include '../includes/footer.php';
+?>
\ No newline at end of file
diff --git a/src-backup/admin/edit_student.php b/src-backup/admin/edit_student.php
new file mode 100644
index 0000000..ec65e1f
--- /dev/null
+++ b/src-backup/admin/edit_student.php
@@ -0,0 +1,577 @@
+<?php
+require_once '../includes/config.php';
+
+// Production: suppress display errors to avoid header issues
+ini_set('display_errors', 0);
+
+// Check if user is logged in and is admin
+if (!isset($_SESSION['logged_in']) || $_SESSION['logged_in'] !== true || $_SESSION['role'] !== 'admin') {
+    header('Location: ../auth/login.php');
+    exit();
+}
+
+$title = "Edit Student";
+
+// Initialize variables
+$student_id = isset($_GET['id']) ? intval($_GET['id']) : 0;
+$message = '';
+$message_type = '';
+
+// Get student data
+$student = null;
+if ($student_id > 0) {
+    $sql = "SELECT s.*, g.name as gender_name, c.code as course_code, c.name as course_name, 
+                   d.code as department_code, d.name as department_name,
+                   sc.code as school_code, sc.name as school_name
+            FROM students s
+            LEFT JOIN genders g ON s.gender_id = g.id
+            LEFT JOIN courses c ON s.course_id = c.id
+            LEFT JOIN departments d ON s.department_id = d.id
+            LEFT JOIN schools sc ON s.school_id = sc.id
+            WHERE s.id = ?";
+    
+    $stmt = mysqli_prepare($conn, $sql);
+    mysqli_stmt_bind_param($stmt, 'i', $student_id);
+    mysqli_stmt_execute($stmt);
+    $result = mysqli_stmt_get_result($stmt);
+    
+    if ($result && mysqli_num_rows($result) > 0) {
+        $student = mysqli_fetch_assoc($result);
+    } else {
+        $_SESSION['message'] = 'Student not found!';
+        $_SESSION['message_type'] = 'danger';
+        header('Location: manage_students.php');
+        exit();
+    }
+    mysqli_stmt_close($stmt);
+} else {
+    $_SESSION['message'] = 'Invalid student ID!';
+    $_SESSION['message_type'] = 'danger';
+    header('Location: manage_students.php');
+    exit();
+}
+
+// Get dropdown data
+$genders = [];
+$courses = [];
+$departments = [];
+$schools = [];
+
+// Genders
+$result = mysqli_query($conn, "SELECT * FROM genders ORDER BY id");
+while ($row = mysqli_fetch_assoc($result)) {
+    $genders[] = $row;
+}
+
+// Courses
+$result = mysqli_query($conn, "SELECT * FROM courses WHERE status = 1 ORDER BY code");
+while ($row = mysqli_fetch_assoc($result)) {
+    $courses[] = $row;
+}
+
+// Departments
+$result = mysqli_query($conn, "SELECT * FROM departments WHERE status = 1 ORDER BY code");
+while ($row = mysqli_fetch_assoc($result)) {
+    $departments[] = $row;
+}
+
+// Schools
+$result = mysqli_query($conn, "SELECT * FROM schools WHERE status = 1 ORDER BY code");
+while ($row = mysqli_fetch_assoc($result)) {
+    $schools[] = $row;
+}
+
+// Handle form submission
+if ($_SERVER['REQUEST_METHOD'] === 'POST' && isset($_POST['update_student'])) {
+    // Prefer POSTed id if present
+    $student_id = isset($_POST['id']) ? intval($_POST['id']) : $student_id;
+    
+    $student_data = [
+        'student_id' => mysqli_real_escape_string($conn, trim($_POST['student_id'])),
+        'full_name' => mysqli_real_escape_string($conn, trim($_POST['full_name'])),
+        'gender_id' => intval($_POST['gender_id']),
+        'year_level' => intval($_POST['year_level']),
+        'course_id' => intval($_POST['course_id']),
+        'department_id' => intval($_POST['department_id']),
+        'school_id' => intval($_POST['school_id']),
+        'birth_date' => (isset($_POST['birth_date']) && preg_match('/^\d{4}-\d{2}-\d{2}$/', $_POST['birth_date']) && $_POST['birth_date'] !== '0000-00-00') ? mysqli_real_escape_string($conn, $_POST['birth_date']) : NULL,
+        'contact_number' => mysqli_real_escape_string($conn, trim($_POST['contact_number'])),
+        'email' => mysqli_real_escape_string($conn, trim($_POST['email'])),
+        'address' => mysqli_real_escape_string($conn, trim($_POST['address'])),
+        'status' => isset($_POST['status']) ? 1 : 0
+    ];
+
+    // Validate required fields
+    $required_fields = ['student_id', 'full_name', 'gender_id', 'year_level', 'course_id', 'department_id', 'school_id'];
+    $valid = true;
+    
+    foreach ($required_fields as $field) {
+        if (empty($student_data[$field])) {
+            $valid = false;
+            $message = "Missing required field: $field";
+            $message_type = 'danger';
+            break;
+        }
+    }
+
+    // Validate email format if provided
+    if ($valid && !empty($student_data['email']) && !filter_var($student_data['email'], FILTER_VALIDATE_EMAIL)) {
+        $valid = false;
+        $message = 'Please enter a valid email address.';
+        $message_type = 'danger';
+    }
+
+    // Check for duplicate student ID (excluding current student)
+    if ($valid) {
+        $check_sql = "SELECT id FROM students WHERE student_id = ? AND id != ?";
+        $stmt = mysqli_prepare($conn, $check_sql);
+        mysqli_stmt_bind_param($stmt, 'si', $student_data['student_id'], $student_id);
+        mysqli_stmt_execute($stmt);
+        mysqli_stmt_store_result($stmt);
+        
+        if (mysqli_stmt_num_rows($stmt) > 0) {
+            $message = 'Student ID already exists. Please use a different Student ID.';
+            $message_type = 'danger';
+            $valid = false;
+        }
+        mysqli_stmt_close($stmt);
+    }
+
+    if ($valid) {
+        // Build SQL query allowing NULLs for optional fields
+        $setParts = [
+            'student_id = ?', 'full_name = ?', 'gender_id = ?', 'year_level = ?',
+            'course_id = ?', 'department_id = ?', 'school_id = ?', 'status = ?', 'updated_at = NOW()'
+        ];
+        $types = 'ssiiiiii';
+        $params = [
+            $student_data['student_id'],
+            $student_data['full_name'],
+            $student_data['gender_id'],
+            $student_data['year_level'],
+            $student_data['course_id'],
+            $student_data['department_id'],
+            $student_data['school_id'],
+            $student_data['status']
+        ];
+        
+        // Optional fields: set to NULL when empty
+        if (!empty($student_data['birth_date'])) {
+            $setParts[] = 'birth_date = ?';
+            $types .= 's';
+            $params[] = $student_data['birth_date'];
+        } else {
+            $setParts[] = 'birth_date = NULL';
+        }
+        if (!empty($student_data['contact_number'])) {
+            $setParts[] = 'contact_number = ?';
+            $types .= 's';
+            $params[] = $student_data['contact_number'];
+        } else {
+            $setParts[] = 'contact_number = NULL';
+        }
+        if (!empty($student_data['email'])) {
+            $setParts[] = 'email = ?';
+            $types .= 's';
+            $params[] = $student_data['email'];
+        } else {
+            $setParts[] = 'email = NULL';
+        }
+        if (!empty($student_data['address'])) {
+            $setParts[] = 'address = ?';
+            $types .= 's';
+            $params[] = $student_data['address'];
+        } else {
+            $setParts[] = 'address = NULL';
+        }
+        
+        $sql = 'UPDATE students SET ' . implode(', ', $setParts) . ' WHERE id = ?';
+        $types .= 'i';
+        $params[] = $student_id;
+        
+        $stmt = mysqli_prepare($conn, $sql);
+        if (!$stmt) {
+            $message = 'Error preparing update: ' . mysqli_error($conn);
+            $message_type = 'danger';
+        } else {
+            mysqli_stmt_bind_param($stmt, $types, ...$params);
+            
+            if (mysqli_stmt_execute($stmt)) {
+                $_SESSION['message'] = 'Student updated successfully!';
+                $_SESSION['message_type'] = 'success';
+                header("Location: view_student.php?id=$student_id");
+                exit();
+            } else {
+                $error_msg = mysqli_error($conn);
+                $message = 'Error updating student: ' . $error_msg;
+                $message_type = 'danger';
+            }
+            mysqli_stmt_close($stmt);
+        }
+    }
+}
+
+include '../includes/header.php';
+?>
+
+<!-- Page Header -->
+<div class="container-fluid">
+    <div class="d-flex justify-content-between align-items-center mb-4">
+        <div>
+            <h1 class="h3 mb-2">
+                <i class="bi bi-pencil-square me-2"></i> Edit Student
+            </h1>
+            <nav aria-label="breadcrumb">
+                <ol class="breadcrumb">
+                    <li class="breadcrumb-item"><a href="dashboard.php">Dashboard</a></li>
+                    <li class="breadcrumb-item"><a href="manage_students.php">Manage Students</a></li>
+                    <li class="breadcrumb-item active">Edit Student</li>
+                </ol>
+            </nav>
+        </div>
+        <div>
+            <a href="manage_students.php" class="btn btn-outline-secondary">
+                <i class="bi bi-arrow-left me-2"></i> Back to Students
+            </a>
+        </div>
+    </div>
+
+    <!-- Message Alert -->
+    <?php if ($message): ?>
+    <div class="alert alert-<?php echo $message_type; ?> alert-dismissible fade show" role="alert">
+        <i class="bi bi-<?php echo $message_type == 'success' ? 'check-circle' : 'exclamation-triangle'; ?> me-2"></i>
+        <?php echo $message; ?>
+        <button type="button" class="btn-close" data-bs-dismiss="alert" aria-label="Close"></button>
+    </div>
+    <?php endif; ?>
+
+    <?php if ($student): ?>
+    <div class="row">
+        <div class="col-lg-8">
+            <!-- Edit Form Card -->
+            <div class="card shadow mb-4">
+                <div class="card-header bg-primary text-white">
+                    <h6 class="m-0 font-weight-bold">
+                        <i class="bi bi-person-lines-fill me-2"></i> Student Information
+                    </h6>
+                </div>
+                <div class="card-body">
+                    <form method="POST" action="" id="editStudentForm">
+                        <input type="hidden" name="id" value="<?php echo $student_id; ?>">
+                        
+                        <div class="row">
+                            <div class="col-md-6 mb-3">
+                                <label class="form-label">Student ID <span class="text-danger">*</span></label>
+                                <input type="text" class="form-control" name="student_id" required 
+                                       value="<?php echo htmlspecialchars($student['student_id']); ?>" 
+                                       maxlength="50" id="student_id_field">
+                                <div class="form-text">Unique student identification number</div>
+                            </div>
+                            <div class="col-md-6 mb-3">
+                                <label class="form-label">Full Name <span class="text-danger">*</span></label>
+                                <input type="text" class="form-control" name="full_name" required 
+                                       value="<?php echo htmlspecialchars($student['full_name']); ?>" 
+                                       maxlength="100" id="full_name_field">
+                            </div>
+                            
+                            <div class="col-md-6 mb-3">
+                                <label class="form-label">Gender <span class="text-danger">*</span></label>
+                                <select class="form-select" name="gender_id" required id="gender_id_field">
+                                    <option value="">Select Gender</option>
+                                    <?php foreach ($genders as $gender): ?>
+                                        <option value="<?php echo $gender['id']; ?>" 
+                                            <?php echo $student['gender_id'] == $gender['id'] ? 'selected' : ''; ?>>
+                                            <?php echo htmlspecialchars($gender['name']); ?>
+                                        </option>
+                                    <?php endforeach; ?>
+                                </select>
+                            </div>
+                            <div class="col-md-6 mb-3">
+                                <label class="form-label">Year Level <span class="text-danger">*</span></label>
+                                <select class="form-select" name="year_level" required id="year_level_field">
+                                    <option value="">Select Year Level</option>
+                                    <?php for ($i = 1; $i <= 4; $i++): ?>
+                                        <option value="<?php echo $i; ?>"
+                                            <?php echo $student['year_level'] == $i ? 'selected' : ''; ?>>
+                                            Year <?php echo $i; ?>
+                                        </option>
+                                    <?php endfor; ?>
+                                </select>
+                            </div>
+                            
+                            <div class="col-md-6 mb-3">
+                                <label class="form-label">School <span class="text-danger">*</span></label>
+                                <select class="form-select" name="school_id" required id="school_id_field">
+                                    <option value="">Select School</option>
+                                    <?php foreach ($schools as $school): ?>
+                                        <option value="<?php echo $school['id']; ?>"
+                                            <?php echo $student['school_id'] == $school['id'] ? 'selected' : ''; ?>>
+                                            <?php echo htmlspecialchars($school['name']); ?>
+                                        </option>
+                                    <?php endforeach; ?>
+                                </select>
+                            </div>
+                            <div class="col-md-6 mb-3">
+                                <label class="form-label">Department <span class="text-danger">*</span></label>
+                                <select class="form-select" name="department_id" required id="department_id_field">
+                                    <option value="">Select Department</option>
+                                    <?php foreach ($departments as $department): ?>
+                                        <option value="<?php echo $department['id']; ?>"
+                                            <?php echo $student['department_id'] == $department['id'] ? 'selected' : ''; ?>>
+                                            <?php echo htmlspecialchars($department['name']); ?>
+                                        </option>
+                                    <?php endforeach; ?>
+                                </select>
+                            </div>
+                            
+                            <div class="col-md-6 mb-3">
+                                <label class="form-label">Course <span class="text-danger">*</span></label>
+                                <select class="form-select" name="course_id" required id="course_id_field">
+                                    <option value="">Select Course</option>
+                                    <?php foreach ($courses as $course): ?>
+                                        <option value="<?php echo $course['id']; ?>"
+                                            <?php echo $student['course_id'] == $course['id'] ? 'selected' : ''; ?>>
+                                            <?php echo htmlspecialchars($course['code']); ?> - <?php echo htmlspecialchars($course['name']); ?>
+                                        </option>
+                                    <?php endforeach; ?>
+                                </select>
+                            </div>
+                            <div class="col-md-6 mb-3">
+                                <label class="form-label">Birth Date</label>
+                                <input type="date" class="form-control" name="birth_date" 
+                                       value="<?php echo $student['birth_date']; ?>" 
+                                       max="<?php echo date('Y-m-d'); ?>" id="birth_date_field">
+                            </div>
+                            
+                            <div class="col-md-6 mb-3">
+                                <label class="form-label">Email Address</label>
+                                <input type="email" class="form-control" name="email" 
+                                       value="<?php echo htmlspecialchars($student['email']); ?>" 
+                                       maxlength="100" id="email_field">
+                            </div>
+                            <div class="col-md-6 mb-3">
+                                <label class="form-label">Contact Number</label>
+                                <input type="tel" class="form-control" name="contact_number" 
+                                       value="<?php echo htmlspecialchars($student['contact_number']); ?>"
+                                       id="contact_number_field">
+                            </div>
+                            
+                            <div class="col-12 mb-3">
+                                <label class="form-label">Address</label>
+                                <textarea class="form-control" name="address" rows="3" 
+                                          maxlength="255" id="address_field"><?php echo htmlspecialchars($student['address']); ?></textarea>
+                            </div>
+                            
+                            <div class="col-12 mb-3">
+                                <div class="form-check form-switch">
+                                    <input class="form-check-input" type="checkbox" role="switch" 
+                                           name="status" id="statusSwitch" value="1"
+                                           <?php echo $student['status'] == 1 ? 'checked' : ''; ?>>
+                                    <label class="form-check-label" for="statusSwitch">
+                                        Active Student
+                                    </label>
+                                </div>
+                            </div>
+                        </div>
+                        
+                        <div class="d-flex justify-content-between mt-4">
+                            <a href="view_student.php?id=<?php echo $student_id; ?>" class="btn btn-secondary">
+                                <i class="bi bi-x-circle me-2"></i> Cancel
+                            </a>
+                            <button type="submit" class="btn btn-primary" name="update_student" id="submitBtn">
+                                <i class="bi bi-save me-2"></i> Update Student
+                            </button>
+                        </div>
+                    </form>
+                </div>
+            </div>
+        </div>
+        
+        <div class="col-lg-4">
+            <!-- Student Summary Card -->
+            <div class="card shadow mb-4">
+                <div class="card-header bg-info text-white">
+                    <h6 class="m-0 font-weight-bold">
+                        <i class="bi bi-person-badge me-2"></i> Student Summary
+                    </h6>
+                </div>
+                <div class="card-body">
+                    <div class="text-center mb-4">
+                        <?php if (!empty($student['picture_path'])): ?>
+                            <img src="../<?php echo htmlspecialchars($student['picture_path']); ?>" 
+                                 alt="Student Photo" class="rounded-circle mb-3" 
+                                 style="width: 120px; height: 120px; object-fit: cover;">
+                        <?php else: ?>
+                            <div class="bg-primary rounded-circle d-flex align-items-center justify-content-center mx-auto mb-3" 
+                                 style="width: 120px; height: 120px;">
+                                <i class="bi bi-person" style="font-size: 3rem; color: white;"></i>
+                            </div>
+                        <?php endif; ?>
+                        
+                        <h5><?php echo htmlspecialchars($student['full_name']); ?></h5>
+                        <p class="text-muted"><?php echo htmlspecialchars($student['student_id']); ?></p>
+                        
+                        <div class="mb-3">
+                            <?php if ($student['status'] == 1): ?>
+                                <span class="badge bg-success">
+                                    <i class="bi bi-check-circle me-1"></i> Active
+                                </span>
+                            <?php else: ?>
+                                <span class="badge bg-danger">
+                                    <i class="bi bi-x-circle me-1"></i> Inactive
+                                </span>
+                            <?php endif; ?>
+                        </div>
+                    </div>
+                    
+                    <div class="list-group list-group-flush">
+                        <div class="list-group-item d-flex justify-content-between align-items-center">
+                            <span>Gender</span>
+                            <span><?php echo htmlspecialchars($student['gender_name']); ?></span>
+                        </div>
+                        <div class="list-group-item d-flex justify-content-between align-items-center">
+                            <span>Course</span>
+                            <span class="fw-bold"><?php echo htmlspecialchars($student['course_code']); ?></span>
+                        </div>
+                        <div class="list-group-item d-flex justify-content-between align-items-center">
+                            <span>Year Level</span>
+                            <span class="badge bg-info">Year <?php echo $student['year_level']; ?></span>
+                        </div>
+                        <div class="list-group-item d-flex justify-content-between align-items-center">
+                            <span>Department</span>
+                            <span><?php echo htmlspecialchars($student['department_name']); ?></span>
+                        </div>
+                        <div class="list-group-item d-flex justify-content-between align-items-center">
+                            <span>School</span>
+                            <span><?php echo htmlspecialchars($student['school_name']); ?></span>
+                        </div>
+                    </div>
+                </div>
+            </div>
+        </div>
+    </div>
+    
+    <?php else: ?>
+    <!-- Student Not Found -->
+    <div class="card shadow">
+        <div class="card-body text-center py-5">
+            <i class="bi bi-person-x" style="font-size: 4rem; color: #dc3545;"></i>
+            <h3 class="mt-3">Student Not Found</h3>
+            <p class="text-muted">The student you're trying to edit does not exist or has been deleted.</p>
+            <a href="manage_students.php" class="btn btn-primary mt-3">
+                <i class="bi bi-arrow-left me-2"></i> Back to Students List
+            </a>
+        </div>
+    </div>
+    <?php endif; ?>
+</div>
+
+<?php 
+$page_scripts = '
+<script>
+function validateEditForm() {
+    console.log("Validating form...");
+    
+    // Get form values
+    const studentId = document.getElementById("student_id_field").value.trim();
+    const fullName = document.getElementById("full_name_field").value.trim();
+    const genderId = document.getElementById("gender_id_field").value;
+    const yearLevel = document.getElementById("year_level_field").value;
+    const schoolId = document.getElementById("school_id_field").value;
+    const departmentId = document.getElementById("department_id_field").value;
+    const courseId = document.getElementById("course_id_field").value;
+    const email = document.getElementById("email_field").value.trim();
+    
+    // Check required fields
+    if (!studentId) {
+        alert("Please enter Student ID");
+        document.getElementById("student_id_field").focus();
+        return false;
+    }
+    
+    if (!fullName) {
+        alert("Please enter Full Name");
+        document.getElementById("full_name_field").focus();
+        return false;
+    }
+    
+    if (!genderId) {
+        alert("Please select Gender");
+        document.getElementById("gender_id_field").focus();
+        return false;
+    }
+    
+    if (!yearLevel) {
+        alert("Please select Year Level");
+        document.getElementById("year_level_field").focus();
+        return false;
+    }
+    
+    if (!schoolId) {
+        alert("Please select School");
+        document.getElementById("school_id_field").focus();
+        return false;
+    }
+    
+    if (!departmentId) {
+        alert("Please select Department");
+        document.getElementById("department_id_field").focus();
+        return false;
+    }
+    
+    if (!courseId) {
+        alert("Please select Course");
+        document.getElementById("course_id_field").focus();
+        return false;
+    }
+    
+    // Validate email format if provided
+    if (email && !isValidEmail(email)) {
+        alert("Please enter a valid email address");
+        document.getElementById("email_field").focus();
+        return false;
+    }
+    
+    // Show loading state
+    document.getElementById("submitBtn").innerHTML = \'<i class="bi bi-hourglass-split me-2"></i> Updating...\';
+    document.getElementById("submitBtn").disabled = true;
+    
+    console.log("Form validation passed");
+    return true;
+}
+
+function isValidEmail(email) {
+    const emailRegex = /^[^\\s@]+@[^\\s@]+\\.[^\\s@]+$/;
+    return emailRegex.test(email);
+}
+
+// Debug form submission
+document.getElementById("editStudentForm").addEventListener("submit", function(e) {
+    console.log("Form submitted");
+    console.log("Form action:", this.action);
+    console.log("Form method:", this.method);
+    
+    const formData = new FormData(this);
+    console.log("Form data:");
+    for (let [key, value] of formData.entries()) {
+        console.log(key + ": " + value);
+    }
+});
+
+// Check if form elements exist
+document.addEventListener("DOMContentLoaded", function() {
+    console.log("DOM loaded");
+    console.log("Form exists:", document.getElementById("editStudentForm") !== null);
+    console.log("Submit button exists:", document.getElementById("submitBtn") !== null);
+    
+    // Test form submission via JavaScript
+    document.getElementById("editStudentForm").onsubmit = function() {
+        console.log("Form onsubmit fired");
+        return validateEditForm();
+    };
+});
+</script>
+';
+
+include '../includes/footer.php';
+?>
\ No newline at end of file
diff --git a/src-backup/admin/get_user.php b/src-backup/admin/get_user.php
new file mode 100644
index 0000000..87686f6
--- /dev/null
+++ b/src-backup/admin/get_user.php
@@ -0,0 +1,33 @@
+<?php
+session_start();
+require_once __DIR__ . '/../includes/database.php';
+
+if (!isset($_SESSION['user_id']) || $_SESSION['role'] !== 'admin') {
+    echo json_encode(['success' => false, 'message' => 'Unauthorized']);
+    exit();
+}
+
+if (!isset($_GET['id'])) {
+    echo json_encode(['success' => false, 'message' => 'User ID required']);
+    exit();
+}
+
+$user_id = (int)$_GET['id'];
+
+try {
+    $query = "SELECT * FROM users WHERE id = ?";
+    $stmt = $pdo->prepare($query);
+    $stmt->execute([$user_id]);
+    $user = $stmt->fetch(PDO::FETCH_ASSOC);
+    
+    if ($user) {
+        // Remove password from response
+        unset($user['password']);
+        echo json_encode(['success' => true, 'user' => $user]);
+    } else {
+        echo json_encode(['success' => false, 'message' => 'User not found']);
+    }
+} catch (PDOException $e) {
+    echo json_encode(['success' => false, 'message' => $e->getMessage()]);
+}
+?>
\ No newline at end of file
diff --git a/src-backup/admin/manage_activities.php b/src-backup/admin/manage_activities.php
new file mode 100644
index 0000000..f767cb2
--- /dev/null
+++ b/src-backup/admin/manage_activities.php
@@ -0,0 +1,847 @@
+<?php
+require_once '../includes/config.php';
+
+// Check if user is logged in and is admin
+if (!isset($_SESSION['logged_in']) || $_SESSION['logged_in'] !== true || $_SESSION['role'] !== 'admin') {
+    header('Location: ../auth/login.php');
+    exit();
+}
+
+$title = "Manage Activities";
+
+// Handle AJAX deletion
+if ($_SERVER['REQUEST_METHOD'] === 'POST' && isset($_POST['ajax_delete'])) {
+    header('Content-Type: application/json');
+    
+    // CSRF check disabled per configuration
+    
+    $activity_id = intval($_POST['activity_id'] ?? 0);
+    
+    if ($activity_id <= 0) {
+        echo json_encode(['success' => false, 'message' => 'Invalid activity ID']);
+        exit();
+    }
+    
+    // Check if activity exists
+    $check_sql = "SELECT id, name, date, time_in, time_out FROM activities WHERE id = ?";
+    $check_stmt = mysqli_prepare($conn, $check_sql);
+    mysqli_stmt_bind_param($check_stmt, "i", $activity_id);
+    mysqli_stmt_execute($check_stmt);
+    $result = mysqli_stmt_get_result($check_stmt);
+    $activity = mysqli_fetch_assoc($result);
+    
+    if (!$activity) {
+        echo json_encode(['success' => false, 'message' => 'Activity not found']);
+        exit();
+    }
+    
+    // Check if activity is currently ongoing
+    $today = date('Y-m-d');
+    $current_time = date('H:i:s');
+    
+    if ($activity['date'] == $today && 
+        $current_time >= $activity['time_in'] && 
+        $current_time <= $activity['time_out']) {
+        echo json_encode([
+            'success' => false, 
+            'message' => 'Cannot delete an activity that is currently ongoing. Please wait until it ends.'
+        ]);
+        exit();
+    }
+    
+    // Start transaction
+    mysqli_begin_transaction($conn);
+    
+    try {
+        // Get attendance count for logging
+        $attendance_count_sql = "SELECT COUNT(*) as count FROM attendance WHERE activity_id = ?";
+        $attendance_stmt = mysqli_prepare($conn, $attendance_count_sql);
+        mysqli_stmt_bind_param($attendance_stmt, "i", $activity_id);
+        mysqli_stmt_execute($attendance_stmt);
+        $attendance_result = mysqli_stmt_get_result($attendance_stmt);
+        $attendance_count = mysqli_fetch_assoc($attendance_result)['count'];
+        
+        // First, delete attendance records
+        $delete_attendance_sql = "DELETE FROM attendance WHERE activity_id = ?";
+        $stmt1 = mysqli_prepare($conn, $delete_attendance_sql);
+        mysqli_stmt_bind_param($stmt1, "i", $activity_id);
+        $attendance_deleted = mysqli_stmt_execute($stmt1);
+        
+        if (!$attendance_deleted) {
+            throw new Exception('Failed to delete attendance records');
+        }
+        
+        // Then delete the activity
+        $delete_activity_sql = "DELETE FROM activities WHERE id = ?";
+        $stmt2 = mysqli_prepare($conn, $delete_activity_sql);
+        mysqli_stmt_bind_param($stmt2, "i", $activity_id);
+        $activity_deleted = mysqli_stmt_execute($stmt2);
+        
+        if (!$activity_deleted) {
+            throw new Exception('Failed to delete activity');
+        }
+        
+        // Commit transaction
+        mysqli_commit($conn);
+        
+        // Log the deletion
+        $log_message = "Activity deleted via AJAX: '{$activity['name']}' (ID: {$activity_id}). ";
+        $log_message .= "Deleted {$attendance_count} attendance records.";
+        log_action($conn, $_SESSION['user_id'], 'delete_activity', $log_message);
+        
+        echo json_encode([
+            'success' => true, 
+            'message' => 'Activity deleted successfully!',
+            'deleted_id' => $activity_id,
+            'attendance_count' => $attendance_count
+        ]);
+        
+    } catch (Exception $e) {
+        mysqli_rollback($conn);
+        echo json_encode([
+            'success' => false, 
+            'message' => 'Error: ' . $e->getMessage()
+        ]);
+    }
+    exit();
+}
+
+// Generate CSRF token for this page
+$csrf_token = bin2hex(random_bytes(32));
+$_SESSION['csrf_token'] = $csrf_token;
+
+// Get all activities with related data
+$activities = [];
+$sql = "SELECT a.*, u.full_name as created_by_name, 
+               c.code as course_code, c.name as course_name,
+               d.code as department_code, d.name as department_name
+        FROM activities a
+        LEFT JOIN users u ON a.created_by = u.id
+        LEFT JOIN courses c ON a.course_id = c.id
+        LEFT JOIN departments d ON a.department_id = d.id
+        ORDER BY a.date DESC, a.time_in ASC";
+$result = query($conn, $sql);
+while ($row = mysqli_fetch_assoc($result)) {
+    $activities[] = $row;
+}
+
+// Statistics calculation
+$today = date('Y-m-d');
+$upcoming_count = 0;
+$ongoing_count = 0;
+$past_count = 0;
+
+foreach ($activities as $activity) {
+    $activity_date = $activity['date'];
+    $current_time = date('H:i:s');
+    $activity_start = $activity['time_in'];
+    $activity_end = $activity['time_out'];
+    
+    if ($activity_date > $today) {
+        $upcoming_count++;
+    } elseif ($activity_date == $today && $current_time >= $activity_start && $current_time <= $activity_end) {
+        $ongoing_count++;
+    } elseif ($activity_date < $today || ($activity_date == $today && $current_time > $activity_end)) {
+        $past_count++;
+    }
+}
+
+include '../includes/header.php';
+?>
+
+<!-- Page Header -->
+<div class="d-flex justify-content-between align-items-center mb-4">
+    <div>
+        <h1 class="h3 mb-2">Manage Activities</h1>
+        <p class="text-muted">Schedule and manage activities, events, and classes.</p>
+    </div>
+    <div>
+        <a href="add_activity.php" class="btn btn-primary">
+            <i class="bi bi-calendar-plus me-2"></i> Schedule New Activity
+        </a>
+    </div>
+</div>
+
+<!-- Message Alert -->
+<?php if (isset($_SESSION['success_message'])): ?>
+    <div class="alert alert-success alert-dismissible fade show" role="alert">
+        <?php echo $_SESSION['success_message']; ?>
+        <button type="button" class="btn-close" data-bs-dismiss="alert"></button>
+    </div>
+    <?php unset($_SESSION['success_message']); ?>
+<?php endif; ?>
+
+<?php if (isset($_SESSION['error_message'])): ?>
+    <div class="alert alert-danger alert-dismissible fade show" role="alert">
+        <?php echo $_SESSION['error_message']; ?>
+        <button type="button" class="btn-close" data-bs-dismiss="alert"></button>
+    </div>
+    <?php unset($_SESSION['error_message']); ?>
+<?php endif; ?>
+
+<div id="messageAlert" class="alert" style="display: none;"></div>
+
+<!-- Statistics Cards -->
+<div class="row mb-4">
+    <div class="col-xl-3 col-md-6 mb-4">
+        <div class="card stat-card border-left-primary">
+            <div class="card-body">
+                <div class="row align-items-center">
+                    <div class="col-8">
+                        <div class="text-uppercase text-primary mb-1">Total Activities</div>
+                        <div class="h2 font-weight-bold" id="totalCount"><?php echo count($activities); ?></div>
+                        <div class="text-muted">All scheduled</div>
+                    </div>
+                    <div class="col-4 text-end">
+                        <i class="bi bi-calendar-check-fill text-primary" style="font-size: 3rem; opacity: 0.7;"></i>
+                    </div>
+                </div>
+            </div>
+        </div>
+    </div>
+
+    <div class="col-xl-3 col-md-6 mb-4">
+        <div class="card stat-card border-left-success">
+            <div class="card-body">
+                <div class="row align-items-center">
+                    <div class="col-8">
+                        <div class="text-uppercase text-success mb-1">Upcoming</div>
+                        <div class="h2 font-weight-bold"><?php echo $upcoming_count; ?></div>
+                        <div class="text-muted">Future activities</div>
+                    </div>
+                    <div class="col-4 text-end">
+                        <i class="bi bi-calendar-event-fill text-success" style="font-size: 3rem; opacity: 0.7;"></i>
+                    </div>
+                </div>
+            </div>
+        </div>
+    </div>
+
+    <div class="col-xl-3 col-md-6 mb-4">
+        <div class="card stat-card border-left-info">
+            <div class="card-body">
+                <div class="row align-items-center">
+                    <div class="col-8">
+                        <div class="text-uppercase text-info mb-1">Ongoing</div>
+                        <div class="h2 font-weight-bold"><?php echo $ongoing_count; ?></div>
+                        <div class="text-muted">Happening now</div>
+                    </div>
+                    <div class="col-4 text-end">
+                        <i class="bi bi-clock-history text-info" style="font-size: 3rem; opacity: 0.7;"></i>
+                    </div>
+                </div>
+            </div>
+        </div>
+    </div>
+
+    <div class="col-xl-3 col-md-6 mb-4">
+        <div class="card stat-card border-left-warning">
+            <div class="card-body">
+                <div class="row align-items-center">
+                    <div class="col-8">
+                        <div class="text-uppercase text-warning mb-1">Past Activities</div>
+                        <div class="h2 font-weight-bold"><?php echo $past_count; ?></div>
+                        <div class="text-muted">Completed</div>
+                    </div>
+                    <div class="col-4 text-end">
+                        <i class="bi bi-calendar-x-fill text-warning" style="font-size: 3rem; opacity: 0.7;"></i>
+                    </div>
+                </div>
+            </div>
+        </div>
+    </div>
+</div>
+
+<!-- Activity Tabs -->
+<div class="card shadow mb-4">
+    <div class="card-header">
+        <ul class="nav nav-tabs card-header-tabs" id="activityTabs" role="tablist">
+            <li class="nav-item" role="presentation">
+                <button class="nav-link active" id="upcoming-tab" data-bs-toggle="tab" 
+                        data-bs-target="#upcoming" type="button" role="tab">
+                    <i class="bi bi-calendar-event me-1"></i> Upcoming
+                    <span class="badge bg-primary ms-1" id="upcomingBadge"><?php echo $upcoming_count; ?></span>
+                </button>
+            </li>
+            <li class="nav-item" role="presentation">
+                <button class="nav-link" id="ongoing-tab" data-bs-toggle="tab" 
+                        data-bs-target="#ongoing" type="button" role="tab">
+                    <i class="bi bi-clock-history me-1"></i> Ongoing
+                    <span class="badge bg-success ms-1"><?php echo $ongoing_count; ?></span>
+                </button>
+            </li>
+            <li class="nav-item" role="presentation">
+                <button class="nav-link" id="past-tab" data-bs-toggle="tab" 
+                        data-bs-target="#past" type="button" role="tab">
+                    <i class="bi bi-calendar-x me-1"></i> Past
+                    <span class="badge bg-secondary ms-1"><?php echo $past_count; ?></span>
+                </button>
+            </li>
+            <li class="nav-item" role="presentation">
+                <button class="nav-link" id="all-tab" data-bs-toggle="tab" 
+                        data-bs-target="#all" type="button" role="tab">
+                    <i class="bi bi-list-ul me-1"></i> All Activities
+                    <span class="badge bg-info ms-1"><?php echo count($activities); ?></span>
+                </button>
+            </li>
+        </ul>
+    </div>
+    <div class="card-body">
+        <div class="tab-content" id="activityTabsContent">
+            <!-- Upcoming Activities Tab -->
+            <div class="tab-pane fade show active" id="upcoming" role="tabpanel">
+                <div class="table-responsive">
+                    <table class="table table-hover mb-0" id="upcomingTable">
+                        <thead class="table-light">
+                            <tr>
+                                <th>Activity</th>
+                                <th>Date & Time</th>
+                                <th>Location</th>
+                                <th>Participants</th>
+                                <th>Status</th>
+                                <th>Actions</th>
+                            </tr>
+                        </thead>
+                        <tbody>
+                            <?php 
+                            $has_upcoming = false;
+                            foreach ($activities as $activity): 
+                                if ($activity['date'] > $today || ($activity['date'] == $today && date('H:i:s') < $activity['time_in'])): 
+                                    $has_upcoming = true;
+                            ?>
+                            <tr id="activityRow-<?php echo $activity['id']; ?>">
+                                <td>
+                                    <strong><?php echo htmlspecialchars($activity['name']); ?></strong><br>
+                                    <small class="text-muted"><?php echo htmlspecialchars($activity['description'] ? substr($activity['description'], 0, 50) . '...' : 'No description'); ?></small>
+                                </td>
+                                <td>
+                                    <div class="fw-bold"><?php echo date('M d, Y', strtotime($activity['date'])); ?></div>
+                                    <small class="text-muted">
+                                        <?php echo date('h:i A', strtotime($activity['time_in'])); ?> - 
+                                        <?php echo date('h:i A', strtotime($activity['time_out'])); ?>
+                                    </small>
+                                </td>
+                                <td>
+                                    <span class="badge bg-light text-dark">
+                                        <i class="bi bi-geo-alt me-1"></i> <?php echo htmlspecialchars($activity['location']); ?>
+                                    </span>
+                                </td>
+                                <td>
+                                    <?php 
+                                    switch($activity['required_students']) {
+                                        case 'all': echo '<span class="badge bg-info">All Students</span>'; break;
+                                        case 'specific_course': 
+                                            echo '<span class="badge bg-warning">' . htmlspecialchars($activity['course_code'] ?? 'Specific Course') . '</span>'; 
+                                            break;
+                                        case 'specific_department': 
+                                            echo '<span class="badge bg-primary">' . htmlspecialchars($activity['department_name'] ?? 'Specific Department') . '</span>'; 
+                                            break;
+                                    }
+                                    ?>
+                                </td>
+                                <td>
+                                    <?php if ($activity['status'] == 1): ?>
+                                        <span class="badge bg-success">Active</span>
+                                    <?php else: ?>
+                                        <span class="badge bg-danger">Inactive</span>
+                                    <?php endif; ?>
+                                </td>
+                                <td>
+                                    <div class="btn-group btn-group-sm">
+                                        <a href="view_activity.php?id=<?php echo $activity['id']; ?>" class="btn btn-info" title="View">
+                                            <i class="bi bi-eye"></i>
+                                        </a>
+                                        <a href="edit_activity.php?id=<?php echo $activity['id']; ?>" class="btn btn-warning" title="Edit">
+                                            <i class="bi bi-pencil"></i>
+                                        </a>
+                                        <button type="button" class="btn btn-danger delete-activity-btn" 
+                                                data-id="<?php echo $activity['id']; ?>" 
+                                                data-name="<?php echo htmlspecialchars($activity['name']); ?>" 
+                                                title="Delete">
+                                            <i class="bi bi-trash"></i>
+                                        </button>
+                                    </div>
+                                </td>
+                            </tr>
+                            <?php endif; endforeach; ?>
+                            
+                            <?php if (!$has_upcoming): ?>
+                                <tr id="noUpcomingRow">
+                                    <td colspan="6" class="text-center py-4">
+                                        <i class="bi bi-calendar-x text-muted" style="font-size: 3rem;"></i>
+                                        <p class="mt-2">No upcoming activities scheduled</p>
+                                    </td>
+                                </tr>
+                            <?php endif; ?>
+                        </tbody>
+                    </table>
+                </div>
+            </div>
+            
+            <!-- Ongoing Activities Tab -->
+            <div class="tab-pane fade" id="ongoing" role="tabpanel">
+                <div class="table-responsive">
+                    <table class="table table-hover mb-0" id="ongoingTable">
+                        <thead class="table-light">
+                            <tr>
+                                <th>Activity</th>
+                                <th>Time</th>
+                                <th>Location</th>
+                                <th>Duration</th>
+                                <th>Participants</th>
+                                <th>Actions</th>
+                            </tr>
+                        </thead>
+                        <tbody>
+                            <?php 
+                            $has_ongoing = false;
+                            foreach ($activities as $activity): 
+                                $current_time = date('H:i:s');
+                                if ($activity['date'] == $today && 
+                                    $current_time >= $activity['time_in'] && 
+                                    $current_time <= $activity['time_out']): 
+                                    $has_ongoing = true;
+                                    
+                                    // Calculate time remaining
+                                    $end_time = strtotime($activity['time_out']);
+                                    $remaining = $end_time - time();
+                                    $hours = floor($remaining / 3600);
+                                    $minutes = floor(($remaining % 3600) / 60);
+                            ?>
+                            <tr id="activityRow-<?php echo $activity['id']; ?>">
+                                <td>
+                                    <strong><?php echo htmlspecialchars($activity['name']); ?></strong><br>
+                                    <small class="text-muted"><?php echo htmlspecialchars($activity['description'] ? substr($activity['description'], 0, 50) . '...' : 'No description'); ?></small>
+                                </td>
+                                <td>
+                                    <div class="fw-bold"><?php echo date('h:i A', strtotime($activity['time_in'])); ?> - <?php echo date('h:i A', strtotime($activity['time_out'])); ?></div>
+                                    <small class="text-muted">Ends in <?php echo $hours . 'h ' . $minutes . 'm'; ?></small>
+                                </td>
+                                <td>
+                                    <span class="badge bg-light text-dark">
+                                        <i class="bi bi-geo-alt me-1"></i> <?php echo htmlspecialchars($activity['location']); ?>
+                                    </span>
+                                </td>
+                                <td>
+                                    <?php 
+                                    $start = strtotime($activity['time_in']);
+                                    $end = strtotime($activity['time_out']);
+                                    $duration = round(($end - $start) / 3600, 1);
+                                    echo '<span class="badge bg-info">' . $duration . ' hours</span>';
+                                    ?>
+                                </td>
+                                <td>
+                                    <?php 
+                                    switch($activity['required_students']) {
+                                        case 'all': echo '<span class="badge bg-info">All Students</span>'; break;
+                                        case 'specific_course': 
+                                            echo '<span class="badge bg-warning">' . htmlspecialchars($activity['course_code'] ?? 'Specific Course') . '</span>'; 
+                                            break;
+                                        case 'specific_department': 
+                                            echo '<span class="badge bg-primary">' . htmlspecialchars($activity['department_name'] ?? 'Specific Department') . '</span>'; 
+                                            break;
+                                    }
+                                    ?>
+                                </td>
+                                <td>
+                                    <div class="btn-group btn-group-sm">
+                                        <a href="view_activity.php?id=<?php echo $activity['id']; ?>" class="btn btn-info" title="View">
+                                            <i class="bi bi-eye"></i>
+                                        </a>
+                                        <a href="../admin/attendance.php" class="btn btn-success" title="Take Attendance">
+                                            <i class="bi bi-qr-code-scan"></i>
+                                        </a>
+                                        <a href="reports.php?activity_id=<?php echo $activity['id']; ?>" class="btn btn-primary" title="View Report">
+                                            <i class="bi bi-file-earmark-text"></i>
+                                        </a>
+                                    </div>
+                                </td>
+                            </tr>
+                            <?php endif; endforeach; ?>
+                            
+                            <?php if (!$has_ongoing): ?>
+                                <tr id="noOngoingRow">
+                                    <td colspan="6" class="text-center py-4">
+                                        <i class="bi bi-clock text-muted" style="font-size: 3rem;"></i>
+                                        <p class="mt-2">No ongoing activities at the moment</p>
+                                    </td>
+                                </tr>
+                            <?php endif; ?>
+                        </tbody>
+                    </table>
+                </div>
+            </div>
+            
+            <!-- Past Activities Tab -->
+            <div class="tab-pane fade" id="past" role="tabpanel">
+                <div class="table-responsive">
+                    <table class="table table-hover mb-0" id="pastTable">
+                        <thead class="table-light">
+                            <tr>
+                                <th>Activity</th>
+                                <th>Date</th>
+                                <th>Time</th>
+                                <th>Location</th>
+                                <th>Attendance</th>
+                                <th>Actions</th>
+                            </tr>
+                        </thead>
+                        <tbody>
+                            <?php 
+                            $has_past = false;
+                            foreach ($activities as $activity): 
+                                if ($activity['date'] < $today || ($activity['date'] == $today && date('H:i:s') > $activity['time_out'])): 
+                                    $has_past = true;
+                                    
+                                    // Get attendance count for this activity
+                                    $attendance_sql = "SELECT COUNT(*) as count FROM attendance WHERE activity_id = " . $activity['id'];
+                                    $attendance_result = query($conn, $attendance_sql);
+                                    $attendance_count = mysqli_fetch_assoc($attendance_result)['count'];
+                            ?>
+                            <tr id="activityRow-<?php echo $activity['id']; ?>">
+                                <td>
+                                    <strong><?php echo htmlspecialchars($activity['name']); ?></strong><br>
+                                    <small class="text-muted"><?php echo htmlspecialchars($activity['description'] ? substr($activity['description'], 0, 50) . '...' : 'No description'); ?></small>
+                                </td>
+                                <td>
+                                    <div class="fw-bold"><?php echo date('M d, Y', strtotime($activity['date'])); ?></div>
+                                    <small class="text-muted"><?php echo date('l', strtotime($activity['date'])); ?></small>
+                                </td>
+                                <td>
+                                    <small class="text-muted">
+                                        <?php echo date('h:i A', strtotime($activity['time_in'])); ?> - 
+                                        <?php echo date('h:i A', strtotime($activity['time_out'])); ?>
+                                    </small>
+                                </td>
+                                <td>
+                                    <span class="badge bg-light text-dark">
+                                        <i class="bi bi-geo-alt me-1"></i> <?php echo htmlspecialchars($activity['location']); ?>
+                                    </span>
+                                </td>
+                                <td>
+                                    <span class="badge bg-<?php echo $attendance_count > 0 ? 'success' : 'secondary'; ?>">
+                                        <?php echo $attendance_count; ?> attended
+                                    </span>
+                                </td>
+                                <td>
+                                    <div class="btn-group btn-group-sm">
+                                        <a href="view_activity.php?id=<?php echo $activity['id']; ?>" class="btn btn-info" title="View">
+                                            <i class="bi bi-eye"></i>
+                                        </a>
+                                        <a href="reports.php?activity_id=<?php echo $activity['id']; ?>" class="btn btn-primary" title="View Report">
+                                            <i class="bi bi-file-earmark-text"></i>
+                                        </a>
+                                        <a href="edit_activity.php?id=<?php echo $activity['id']; ?>" class="btn btn-warning" title="Edit">
+                                            <i class="bi bi-pencil"></i>
+                                        </a>
+                                    </div>
+                                </td>
+                            </tr>
+                            <?php endif; endforeach; ?>
+                            
+                            <?php if (!$has_past): ?>
+                                <tr id="noPastRow">
+                                    <td colspan="6" class="text-center py-4">
+                                        <i class="bi bi-calendar-check text-muted" style="font-size: 3rem;"></i>
+                                        <p class="mt-2">No past activities found</p>
+                                    </td>
+                                </tr>
+                            <?php endif; ?>
+                        </tbody>
+                    </table>
+                </div>
+            </div>
+            
+            <!-- All Activities Tab -->
+            <div class="tab-pane fade" id="all" role="tabpanel">
+                <div class="table-responsive">
+                    <table class="table table-hover mb-0" id="allTable">
+                        <thead class="table-light">
+                            <tr>
+                                <th>Activity</th>
+                                <th>Date & Time</th>
+                                <th>Location</th>
+                                <th>Participants</th>
+                                <th>Created By</th>
+                                <th>Status</th>
+                                <th>Actions</th>
+                            </tr>
+                        </thead>
+                        <tbody id="allActivitiesBody">
+                            <?php if (empty($activities)): ?>
+                                <tr id="noActivitiesRow">
+                                    <td colspan="7" class="text-center py-4">
+                                        <i class="bi bi-calendar-x text-muted" style="font-size: 3rem;"></i>
+                                        <p class="mt-2">No activities found. Schedule your first activity!</p>
+                                    </td>
+                                </tr>
+                            <?php else: ?>
+                                <?php foreach ($activities as $activity): ?>
+                                <tr id="activityRow-<?php echo $activity['id']; ?>">
+                                    <td>
+                                        <strong><?php echo htmlspecialchars($activity['name']); ?></strong><br>
+                                        <small class="text-muted"><?php echo htmlspecialchars($activity['description'] ? substr($activity['description'], 0, 50) . '...' : 'No description'); ?></small>
+                                    </td>
+                                    <td>
+                                        <div class="fw-bold"><?php echo date('M d, Y', strtotime($activity['date'])); ?></div>
+                                        <small class="text-muted">
+                                            <?php echo date('h:i A', strtotime($activity['time_in'])); ?> - 
+                                            <?php echo date('h:i A', strtotime($activity['time_out'])); ?>
+                                        </small>
+                                    </td>
+                                    <td>
+                                        <span class="badge bg-light text-dark">
+                                            <i class="bi bi-geo-alt me-1"></i> <?php echo htmlspecialchars($activity['location']); ?>
+                                        </span>
+                                    </td>
+                                    <td>
+                                        <?php 
+                                        switch($activity['required_students']) {
+                                            case 'all': echo '<span class="badge bg-info">All Students</span>'; break;
+                                            case 'specific_course': 
+                                                echo '<span class="badge bg-warning">' . htmlspecialchars($activity['course_code'] ?? 'Specific Course') . '</span>'; 
+                                                break;
+                                            case 'specific_department': 
+                                                echo '<span class="badge bg-primary">' . htmlspecialchars($activity['department_name'] ?? 'Specific Department') . '</span>'; 
+                                                break;
+                                        }
+                                        ?>
+                                    </td>
+                                    <td>
+                                        <small><?php echo htmlspecialchars($activity['created_by_name']); ?></small><br>
+                                        <small class="text-muted"><?php echo date('M d, Y', strtotime($activity['created_at'])); ?></small>
+                                    </td>
+                                    <td>
+                                        <?php if ($activity['status'] == 1): ?>
+                                            <span class="badge bg-success">Active</span>
+                                        <?php else: ?>
+                                            <span class="badge bg-danger">Inactive</span>
+                                        <?php endif; ?>
+                                    </td>
+                                    <td>
+                                        <div class="btn-group btn-group-sm">
+                                            <a href="view_activity.php?id=<?php echo $activity['id']; ?>" class="btn btn-info" title="View">
+                                                <i class="bi bi-eye"></i>
+                                            </a>
+                                            <a href="edit_activity.php?id=<?php echo $activity['id']; ?>" class="btn btn-warning" title="Edit">
+                                                <i class="bi bi-pencil"></i>
+                                            </a>
+                                            <button type="button" class="btn btn-danger delete-activity-btn" 
+                                                    data-id="<?php echo $activity['id']; ?>" 
+                                                    data-name="<?php echo htmlspecialchars($activity['name']); ?>" 
+                                                    title="Delete">
+                                                <i class="bi bi-trash"></i>
+                                            </button>
+                                        </div>
+                                    </td>
+                                </tr>
+                                <?php endforeach; ?>
+                            <?php endif; ?>
+                        </tbody>
+                    </table>
+                </div>
+            </div>
+        </div>
+    </div>
+    <div class="card-footer">
+        <div class="row">
+            <div class="col-md-6">
+                <small class="text-muted">
+                    Showing <span id="activitiesCount"><?php echo count($activities); ?></span> activity(s)
+                </small>
+            </div>
+            <div class="col-md-6 text-md-end">
+                <small class="text-muted">
+                    Today: <?php echo date('F j, Y'); ?>
+                </small>
+            </div>
+        </div>
+    </div>
+</div>
+
+<!-- Delete Confirmation Modal -->
+<div class="modal fade" id="deleteModal" tabindex="-1">
+    <div class="modal-dialog">
+        <div class="modal-content">
+            <div class="modal-header">
+                <h5 class="modal-title">Confirm Delete</h5>
+                <button type="button" class="btn-close" data-bs-dismiss="modal"></button>
+            </div>
+            <div class="modal-body">
+                <p>Are you sure you want to delete activity "<span id="deleteActivityName"></span>"?</p>
+                <p class="text-danger"><small>This will also delete all attendance records for this activity.</small></p>
+            </div>
+            <div class="modal-footer">
+                <button type="button" class="btn btn-secondary" data-bs-dismiss="modal">Cancel</button>
+                <button type="button" class="btn btn-danger" id="confirmDeleteBtn">Delete</button>
+            </div>
+        </div>
+    </div>
+</div>
+
+<?php 
+$page_scripts = '
+<script>
+$(document).ready(function() {
+    let currentActivityId = null;
+    
+    // Initialize DataTables
+    const upcomingTable = $("#upcomingTable").DataTable({
+        pageLength: 10,
+        lengthMenu: [[10, 25, 50, -1], [10, 25, 50, "All"]],
+        order: [[1, "asc"]],
+        responsive: true,
+        columnDefs: [
+            { orderable: false, targets: [5] }
+        ]
+    });
+    
+    const ongoingTable = $("#ongoingTable").DataTable({
+        pageLength: 10,
+        lengthMenu: [[10, 25, 50, -1], [10, 25, 50, "All"]],
+        order: [[1, "asc"]],
+        responsive: true,
+        columnDefs: [
+            { orderable: false, targets: [5] }
+        ]
+    });
+    
+    const pastTable = $("#pastTable").DataTable({
+        pageLength: 10,
+        lengthMenu: [[10, 25, 50, -1], [10, 25, 50, "All"]],
+        order: [[1, "desc"]],
+        responsive: true,
+        columnDefs: [
+            { orderable: false, targets: [5] }
+        ]
+    });
+    
+    const allTable = $("#allTable").DataTable({
+        pageLength: 10,
+        lengthMenu: [[10, 25, 50, -1], [10, 25, 50, "All"]],
+        order: [[1, "desc"]],
+        responsive: true,
+        columnDefs: [
+            { orderable: false, targets: [6] }
+        ]
+    });
+    
+    // Delete button click
+    $(document).on("click", ".delete-activity-btn", function() {
+        currentActivityId = $(this).data("id");
+        const activityName = $(this).data("name");
+        
+        $("#deleteActivityName").text(activityName);
+        $("#deleteModal").modal("show");
+    });
+    
+    // Confirm delete
+    $("#confirmDeleteBtn").click(function() {
+        if (!currentActivityId) return;
+        
+        const $btn = $(this);
+        const originalText = $btn.html();
+        $btn.html(\'<i class="bi bi-hourglass-split"></i> Deleting...\').prop("disabled", true);
+        
+        $.ajax({
+            url: "manage_activities.php",
+            method: "POST",
+            data: {
+                ajax_delete: true,
+                activity_id: currentActivityId,
+                csrf_token: "' . $csrf_token . '"
+            },
+            dataType: "json",
+            success: function(response) {
+                $btn.html(originalText).prop("disabled", false);
+                $("#deleteModal").modal("hide");
+                
+                if (response.success) {
+                    // Remove row from all tables
+                    $("#activityRow-" + currentActivityId).fadeOut(300, function() {
+                        $(this).remove();
+                        
+                        // Update counters
+                        updateCounters();
+                        
+                        // Show success message
+                        showMessage(response.message, "success");
+                    });
+                } else {
+                    showMessage(response.message, "danger");
+                }
+            },
+            error: function(xhr, status, error) {
+                $btn.html(originalText).prop("disabled", false);
+                showMessage("Error deleting activity. Please try again.", "danger");
+                console.error("Delete error:", error);
+            }
+        });
+    });
+    
+    function updateCounters() {
+        // Get current counts
+        const totalRows = $("#allActivitiesBody tr:not(#noActivitiesRow)").length;
+        const upcomingRows = $("#upcomingTable tbody tr:not(#noUpcomingRow)").length;
+        const ongoingRows = $("#ongoingTable tbody tr:not(#noOngoingRow)").length;
+        const pastRows = $("#pastTable tbody tr:not(#noPastRow)").length;
+        
+        // Update counters
+        $("#activitiesCount").text(totalRows);
+        $("#totalCount").text(totalRows);
+        $("#upcomingBadge").text(upcomingRows);
+        
+        // Update badges
+        $("#upcoming-tab .badge").text(upcomingRows);
+        $("#ongoing-tab .badge").text(ongoingRows);
+        $("#past-tab .badge").text(pastRows);
+        $("#all-tab .badge").text(totalRows);
+        
+        // Show/hide empty messages
+        if (upcomingRows === 0 && $("#noUpcomingRow").length === 0) {
+            $("#upcomingTable tbody").append(\'<tr id="noUpcomingRow"><td colspan="6" class="text-center py-4"><i class="bi bi-calendar-x text-muted" style="font-size: 3rem;"></i><p class="mt-2">No upcoming activities scheduled</p></td></tr>\');
+        }
+        
+        if (ongoingRows === 0 && $("#noOngoingRow").length === 0) {
+            $("#ongoingTable tbody").append(\'<tr id="noOngoingRow"><td colspan="6" class="text-center py-4"><i class="bi bi-clock text-muted" style="font-size: 3rem;"></i><p class="mt-2">No ongoing activities at the moment</p></td></tr>\');
+        }
+        
+        if (pastRows === 0 && $("#noPastRow").length === 0) {
+            $("#pastTable tbody").append(\'<tr id="noPastRow"><td colspan="6" class="text-center py-4"><i class="bi bi-calendar-check text-muted" style="font-size: 3rem;"></i><p class="mt-2">No past activities found</p></td></tr>\');
+        }
+        
+        if (totalRows === 0 && $("#noActivitiesRow").length === 0) {
+            $("#allActivitiesBody").append(\'<tr id="noActivitiesRow"><td colspan="7" class="text-center py-4"><i class="bi bi-calendar-x text-muted" style="font-size: 3rem;"></i><p class="mt-2">No activities found. Schedule your first activity!</p></td></tr>\');
+        }
+    }
+    
+    function showMessage(message, type) {
+        const $alert = $("#messageAlert");
+        $alert.removeClass("alert-success alert-danger alert-warning alert-info")
+              .addClass("alert-" + type)
+              .html(\'<i class="bi me-2"></i>\' + message + \'<button type="button" class="btn-close" data-bs-dismiss="alert"></button>\')
+              .find("i").addClass(type === "success" ? "bi-check-circle" : "bi-exclamation-circle").end()
+              .show();
+        
+        // Auto-hide after 5 seconds
+        setTimeout(() => {
+            $alert.fadeOut();
+        }, 5000);
+    }
+    
+    // Auto-refresh ongoing tab
+    setInterval(function() {
+        const activeTab = document.querySelector("#activityTabs .nav-link.active");
+        if (activeTab && activeTab.id === "ongoing-tab") {
+            location.reload();
+        }
+    }, 60000);
+    
+    // Initialize counters
+    updateCounters();
+});
+</script>
+';
+
+include '../includes/footer.php';
+?>
\ No newline at end of file
diff --git a/src-backup/admin/manage_students.php b/src-backup/admin/manage_students.php
new file mode 100644
index 0000000..7d22471
--- /dev/null
+++ b/src-backup/admin/manage_students.php
@@ -0,0 +1,1207 @@
+<?php
+require_once '../includes/config.php';
+
+// Check if user is logged in and is admin
+if (!isset($_SESSION['logged_in']) || $_SESSION['logged_in'] !== true || $_SESSION['role'] !== 'admin') {
+    header('Location: ../auth/login.php');
+    exit();
+}
+
+$title = "Manage Students";
+
+// Initialize variables
+$action = $_GET['action'] ?? '';
+$student_id = isset($_GET['id']) ? intval($_GET['id']) : 0;
+$message = '';
+$message_type = '';
+
+// CSRF token for POST actions
+$csrf_token = bin2hex(random_bytes(32));
+$_SESSION['csrf_token'] = $csrf_token;
+
+// ==================== HELPER FUNCTIONS ====================
+function sanitizeInput($input) {
+    return htmlspecialchars(trim($input), ENT_QUOTES, 'UTF-8');
+}
+
+function exportToExcel($conn) {
+    $filename = "students_" . date('Y-m-d') . ".csv";
+    
+    header('Content-Type: text/csv');
+    header('Content-Disposition: attachment; filename="' . $filename . '"');
+    header('Pragma: no-cache');
+    header('Expires: 0');
+    
+    $output = fopen('php://output', 'w');
+    
+    // Add BOM for UTF-8
+    fputs($output, chr(0xEF) . chr(0xBB) . chr(0xBF));
+    
+    // Header row
+    fputcsv($output, [
+        'Student ID', 'Full Name', 'Gender', 'Year Level', 'Course',
+        'Department', 'School', 'Email', 'Contact', 'Status'
+    ]);
+    
+    // Get all students
+    $sql = "SELECT s.*, g.name as gender, c.code as course_code, c.name as course_name, 
+                   d.code as department_code, d.name as department_name,
+                   sc.code as school_code, sc.name as school_name
+            FROM students s
+            LEFT JOIN genders g ON s.gender_id = g.id
+            LEFT JOIN courses c ON s.course_id = c.id
+            LEFT JOIN departments d ON s.department_id = d.id
+            LEFT JOIN schools sc ON s.school_id = sc.id
+            ORDER BY s.created_at DESC";
+    
+    $result = mysqli_query($conn, $sql);
+    
+    if ($result) {
+        while ($row = mysqli_fetch_assoc($result)) {
+            fputcsv($output, [
+                $row['student_id'],
+                $row['full_name'],
+                $row['gender'],
+                'Year ' . $row['year_level'],
+                $row['course_code'] . ' - ' . $row['course_name'],
+                $row['department_name'],
+                $row['school_name'],
+                $row['email'],
+                $row['contact_number'],
+                $row['status'] == 1 ? 'Active' : 'Inactive'
+            ]);
+        }
+    }
+    
+    fclose($output);
+    exit();
+}
+
+// ==================== HANDLE FORM SUBMISSIONS ====================
+if ($_SERVER['REQUEST_METHOD'] === 'POST') {
+    
+    // --- Add Student (Modal) ---
+    if (isset($_POST['modal_add_student'])) {
+        $sid = trim($_POST['student_id'] ?? '');
+        $full = trim($_POST['full_name'] ?? '');
+        $gender_id = intval($_POST['gender_id'] ?? 0);
+        $year_level = intval($_POST['year_level'] ?? 0);
+        $course_id = intval($_POST['course_id'] ?? 0);
+        $department_id = intval($_POST['department_id'] ?? 0);
+        $school_id = intval($_POST['school_id'] ?? 0);
+        $birth_date = ($_POST['birth_date'] ?? '') ?: null;
+        if ($birth_date === '0000-00-00') { $birth_date = null; }
+        $contact = trim($_POST['contact_number'] ?? '');
+        $email = trim($_POST['email'] ?? '');
+        $address = trim($_POST['address'] ?? '');
+        $status = isset($_POST['status']) ? 1 : 1; // default active
+        
+        // basic required validation
+        if ($sid === '' || $full === '' || $gender_id === 0 || $year_level === 0 || $course_id === 0 || $department_id === 0 || $school_id === 0) {
+            $message = 'Please fill in all required fields.';
+            $message_type = 'danger';
+        } else {
+            // duplicate check
+            $dup = mysqli_prepare($conn, "SELECT id FROM students WHERE student_id = ?");
+            mysqli_stmt_bind_param($dup, 's', $sid);
+            mysqli_stmt_execute($dup);
+            mysqli_stmt_store_result($dup);
+            if (mysqli_stmt_num_rows($dup) > 0) {
+                $message = 'Student ID already exists.';
+                $message_type = 'danger';
+            } else {
+                $qr = 'STU_' . $sid . '_' . uniqid();
+                $sql = "INSERT INTO students (student_id, qr_code, full_name, gender_id, year_level, course_id, department_id, school_id, birth_date, contact_number, email, address, created_at, updated_at, status) VALUES (?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, NOW(), NOW(), ?)";
+                $stmt = mysqli_prepare($conn, $sql);
+                // null-safe birth_date
+                $bd = $birth_date ?: null;
+                mysqli_stmt_bind_param($stmt, 'sssiiiiissssi', $sid, $qr, $full, $gender_id, $year_level, $course_id, $department_id, $school_id, $bd, $contact, $email, $address, $status);
+                if (mysqli_stmt_execute($stmt)) {
+                    $_SESSION['flash_message'] = 'Student added successfully!';
+                    $_SESSION['flash_type'] = 'success';
+                    header('Location: manage_students.php');
+                    exit();
+                } else {
+                    $message = 'Error adding student: ' . mysqli_error($conn);
+                    $message_type = 'danger';
+                }
+                mysqli_stmt_close($stmt);
+            }
+            mysqli_stmt_close($dup);
+        }
+    }
+    
+    // --- Update Student (Modal) ---
+    elseif (isset($_POST['modal_update_student'])) {
+        $id = intval($_POST['id'] ?? 0);
+        $sid = trim($_POST['student_id'] ?? '');
+        $full = trim($_POST['full_name'] ?? '');
+        $gender_id = intval($_POST['gender_id'] ?? 0);
+        $year_level = intval($_POST['year_level'] ?? 0);
+        $course_id = intval($_POST['course_id'] ?? 0);
+        $department_id = intval($_POST['department_id'] ?? 0);
+        $school_id = intval($_POST['school_id'] ?? 0);
+        $birth_date = ($_POST['birth_date'] ?? '') ?: null;
+        if ($birth_date === '0000-00-00') { $birth_date = null; }
+        $contact = trim($_POST['contact_number'] ?? '');
+        $email = trim($_POST['email'] ?? '');
+        $address = trim($_POST['address'] ?? '');
+        $status = isset($_POST['status']) ? 1 : 0;
+        
+        if ($id <= 0) {
+            $message = 'Invalid student id.';
+            $message_type = 'danger';
+        } elseif ($sid === '' || $full === '' || $gender_id === 0 || $year_level === 0 || $course_id === 0 || $department_id === 0 || $school_id === 0) {
+            $message = 'Please fill in all required fields.';
+            $message_type = 'danger';
+        } else {
+            // duplicate student_id check excluding current id
+            $dup = mysqli_prepare($conn, "SELECT id FROM students WHERE student_id = ? AND id != ?");
+            mysqli_stmt_bind_param($dup, 'si', $sid, $id);
+            mysqli_stmt_execute($dup);
+            mysqli_stmt_store_result($dup);
+            if (mysqli_stmt_num_rows($dup) > 0) {
+                $message = 'Student ID already exists.';
+                $message_type = 'danger';
+            } else {
+                // Build dynamic update allowing NULLs
+                $set = 'student_id = ?, full_name = ?, gender_id = ?, year_level = ?, course_id = ?, department_id = ?, school_id = ?, status = ?, updated_at = NOW()';
+                $types = 'ssiiiiii';
+                $params = [$sid, $full, $gender_id, $year_level, $course_id, $department_id, $school_id, $status];
+                if ($birth_date) { $set .= ', birth_date = ?'; $types .= 's'; $params[] = $birth_date; } else { $set .= ', birth_date = NULL'; }
+                if ($contact !== '') { $set .= ', contact_number = ?'; $types .= 's'; $params[] = $contact; } else { $set .= ', contact_number = NULL'; }
+                if ($email !== '') { $set .= ', email = ?'; $types .= 's'; $params[] = $email; } else { $set .= ', email = NULL'; }
+                if ($address !== '') { $set .= ', address = ?'; $types .= 's'; $params[] = $address; } else { $set .= ', address = NULL'; }
+                $sql = "UPDATE students SET $set WHERE id = ?";
+                $types .= 'i';
+                $params[] = $id;
+                $stmt = mysqli_prepare($conn, $sql);
+                if ($stmt && mysqli_stmt_bind_param($stmt, $types, ...$params) && mysqli_stmt_execute($stmt)) {
+                    $_SESSION['flash_message'] = 'Student updated successfully!';
+                    $_SESSION['flash_type'] = 'success';
+                    header('Location: manage_students.php');
+                    exit();
+                } else {
+                    $message = 'Error updating student: ' . mysqli_error($conn);
+                    $message_type = 'danger';
+                }
+                if ($stmt) { mysqli_stmt_close($stmt); }
+            }
+            mysqli_stmt_close($dup);
+        }
+    }
+    
+    // --- Delete Student ---
+    if (isset($_POST['delete_student'])) {
+            $student_id = isset($_POST['id']) ? intval($_POST['id']) : 0;
+            if ($student_id > 0) {
+        // Check if student exists
+        $check_sql = "SELECT id, full_name FROM students WHERE id = ?";
+        $stmt = mysqli_prepare($conn, $check_sql);
+        mysqli_stmt_bind_param($stmt, 'i', $student_id);
+        mysqli_stmt_execute($stmt);
+        $result = mysqli_stmt_get_result($stmt);
+        
+        if ($row = mysqli_fetch_assoc($result)) {
+            $student_name = $row['full_name'];
+            
+            // Remove associated files before deletion
+            $fetch_sql = "SELECT picture_path, qr_code_image, full_name FROM students WHERE id = ?";
+            $stmtf = mysqli_prepare($conn, $fetch_sql);
+            mysqli_stmt_bind_param($stmtf, 'i', $student_id);
+            mysqli_stmt_execute($stmtf);
+            $resf = mysqli_stmt_get_result($stmtf);
+            if ($fileRow = mysqli_fetch_assoc($resf)) {
+                if (!empty($fileRow['picture_path']) && file_exists('../' . $fileRow['picture_path'])) {
+                    @unlink('../' . $fileRow['picture_path']);
+                }
+                if (!empty($fileRow['qr_code_image']) && file_exists('../' . $fileRow['qr_code_image'])) {
+                    @unlink('../' . $fileRow['qr_code_image']);
+                }
+                // Ensure we have name
+                $student_name = $fileRow['full_name'];
+            }
+            mysqli_stmt_close($stmtf);
+
+            // Delete the student; related attendance/logs cascade via FK constraints
+            $sql = "DELETE FROM students WHERE id = ?";
+            $stmt3 = mysqli_prepare($conn, $sql);
+            mysqli_stmt_bind_param($stmt3, 'i', $student_id);
+            
+            if (mysqli_stmt_execute($stmt3)) {
+                $affected_rows = mysqli_stmt_affected_rows($stmt3);
+                
+                if ($affected_rows > 0) {
+                    $_SESSION['flash_message'] = "Student '$student_name' deleted successfully!";
+                    $_SESSION['flash_type'] = 'success';
+                    header("Location: manage_students.php?msg=deleted");
+                    exit();
+                } else {
+                    $message = 'No student was deleted. Student might not exist or there was an error.';
+                    $message_type = 'warning';
+                    error_log("No rows affected when deleting student ID: $student_id");
+                }
+            } else {
+                $error = mysqli_error($conn);
+                $message = 'Error deleting student: ' . $error;
+                $message_type = 'danger';
+                error_log("SQL Error deleting student: $error");
+            }
+            mysqli_stmt_close($stmt3);
+
+        } else {
+            $message = 'Student not found!';
+            $message_type = 'danger';
+            error_log("Student ID $student_id not found");
+        }
+        mysqli_stmt_close($stmt);
+    }
+    }
+    
+    // --- Export to Excel ---
+    elseif (isset($_POST['export_excel'])) {
+        exportToExcel($conn);
+        exit();
+    }
+    
+    // --- Bulk Actions ---
+    elseif (isset($_POST['bulk_action']) && isset($_POST['selected_students'])) {
+        $bulk_action = sanitizeInput($_POST['bulk_action']);
+        $selected_students = $_POST['selected_students'];
+        
+        // Validate selected students
+        if (empty($selected_students) || !is_array($selected_students)) {
+            $message = 'No students selected.';
+            $message_type = 'warning';
+        } else {
+            // Sanitize all IDs
+            $sanitized_ids = array_map('intval', $selected_students);
+            $ids = implode(',', $sanitized_ids);
+            $count = count($sanitized_ids);
+            
+            // Check if force delete is requested
+            $force_delete = isset($_POST['force_bulk_delete']) && $_POST['force_bulk_delete'] == 1;
+            
+            // Prepare SQL based on action
+            if ($bulk_action === 'activate') {
+                $sql = "UPDATE students SET status = 1, updated_at = NOW() WHERE id IN ($ids)";
+                $success_msg = "$count student(s) activated successfully!";
+            } elseif ($bulk_action === 'deactivate') {
+                $sql = "UPDATE students SET status = 0, updated_at = NOW() WHERE id IN ($ids)";
+                $success_msg = "$count student(s) deactivated successfully!";
+            } elseif ($bulk_action === 'delete') {
+                // Direct bulk delete; related attendance and logs cascade via FK constraints
+                $sql = "DELETE FROM students WHERE id IN ($ids)";
+                $success_msg = "$count student(s) deleted successfully!";
+            }
+            
+            if (isset($sql) && empty($message)) {
+                // If deleting, clean up files first
+                if ($bulk_action === 'delete') {
+                    $files_sql = "SELECT id, picture_path, qr_code_image FROM students WHERE id IN ($ids)";
+                    $files_result = mysqli_query($conn, $files_sql);
+                    if ($files_result) {
+                        while ($f = mysqli_fetch_assoc($files_result)) {
+                            if (!empty($f['picture_path']) && file_exists('../' . $f['picture_path'])) {
+                                @unlink('../' . $f['picture_path']);
+                            }
+                            if (!empty($f['qr_code_image']) && file_exists('../' . $f['qr_code_image'])) {
+                                @unlink('../' . $f['qr_code_image']);
+                            }
+                        }
+                    }
+                }
+
+                error_log("Executing SQL: $sql");
+                if (mysqli_query($conn, $sql)) {
+                    $affected_rows = mysqli_affected_rows($conn);
+                    error_log("Bulk action affected $affected_rows row(s)");
+                    
+                    $_SESSION['flash_message'] = $success_msg;
+                    $_SESSION['flash_type'] = 'success';
+                    header("Location: manage_students.php?msg=bulk");
+                    exit();
+                } else {
+                    $error = mysqli_error($conn);
+                    $message = 'Error performing bulk action: ' . $error;
+                    $message_type = 'danger';
+                    error_log("SQL Error in bulk action: $error");
+                }
+            }
+        }
+    }
+}
+
+// Check for flash messages from session
+if (isset($_SESSION['flash_message'])) {
+    $message = $_SESSION['flash_message'];
+    $message_type = $_SESSION['flash_type'];
+    unset($_SESSION['flash_message']);
+    unset($_SESSION['flash_type']);
+}
+
+// ==================== GET STUDENTS DATA ====================
+$students = [];
+$sql = "SELECT s.*, g.name as gender, c.code as course_code, c.name as course_name, 
+               d.code as department_code, d.name as department_name,
+               sc.code as school_code, sc.name as school_name
+        FROM students s
+        LEFT JOIN genders g ON s.gender_id = g.id
+        LEFT JOIN courses c ON s.course_id = c.id
+        LEFT JOIN departments d ON s.department_id = d.id
+        LEFT JOIN schools sc ON s.school_id = sc.id
+        ORDER BY s.created_at DESC";
+        
+$result = mysqli_query($conn, $sql);
+if ($result) {
+    while ($row = mysqli_fetch_assoc($result)) {
+        $students[] = $row;
+    }
+} else {
+    error_log("Error fetching students: " . mysqli_error($conn));
+}
+
+// Dropdown data for modals
+$genders = [];
+$courses = [];
+$departments = [];
+$schools = [];
+$r = mysqli_query($conn, "SELECT * FROM genders ORDER BY id");
+if ($r) { while ($row = mysqli_fetch_assoc($r)) { $genders[] = $row; } }
+$r = mysqli_query($conn, "SELECT * FROM courses WHERE status = 1 ORDER BY code");
+if ($r) { while ($row = mysqli_fetch_assoc($r)) { $courses[] = $row; } }
+$r = mysqli_query($conn, "SELECT * FROM departments WHERE status = 1 ORDER BY code");
+if ($r) { while ($row = mysqli_fetch_assoc($r)) { $departments[] = $row; } }
+$r = mysqli_query($conn, "SELECT * FROM schools WHERE status = 1 ORDER BY code");
+if ($r) { while ($row = mysqli_fetch_assoc($r)) { $schools[] = $row; } }
+
+// ==================== INCLUDE HEADER ====================
+include '../includes/header.php';
+?>
+
+<style>
+/* Compact Styles */
+body { font-size: 0.9rem; }
+.table-sm th { padding: 6px 8px; font-size: 0.8rem; }
+.table-sm td { padding: 4px 8px; font-size: 0.85rem; }
+.btn-xs { padding: 0.15rem 0.5rem; font-size: 0.75rem; }
+.badge-sm { font-size: 0.7rem; padding: 2px 5px; }
+.search-box input { font-size: 0.85rem; height: 32px; }
+.stat-card { padding: 10px; }
+.stat-card h3 { font-size: 1.3rem; margin-bottom: 0.2rem; }
+.stat-card h6 { font-size: 0.75rem; margin-bottom: 0.3rem; }
+.avatar { width: 30px !important; height: 30px !important; font-size: 0.8rem; }
+.avatar i { font-size: 0.8rem; }
+.dropdown-menu { font-size: 0.85rem; min-width: 180px; }
+.alert form { display: inline; }
+.debug-info { font-size: 0.7rem; color: #666; margin-top: 5px; }
+</style>
+
+<!-- Page Header -->
+<div class="d-flex justify-content-between align-items-center mb-3">
+    <div>
+        <h1 class="h4 mb-1">Manage Students</h1>
+        <small class="text-muted">Manage student records</small>
+        <?php if (isset($_GET['debug'])): ?>
+        <div class="debug-info">
+            PHP Version: <?php echo phpversion(); ?> | 
+            DB Connected: <?php echo mysqli_ping($conn) ? 'Yes' : 'No'; ?>
+        </div>
+        <?php endif; ?>
+    </div>
+    <div>
+        <button type="button" class="btn btn-primary btn-sm" id="openAddModal">
+            <i class="bi bi-person-plus me-1"></i> Add
+        </button>
+        <a href="?debug=1" class="btn btn-outline-info btn-sm ms-1" title="Debug Info">
+            <i class="bi bi-bug"></i>
+        </a>
+        <form method="POST" action="" class="d-inline">
+            <button type="submit" name="export_excel" class="btn btn-outline-success btn-sm ms-1">
+                <i class="bi bi-file-excel me-1"></i> Export
+            </button>
+        </form>
+    </div>
+</div>
+
+<!-- Message Alert -->
+<?php 
+// Check for URL messages
+if (isset($_GET['msg'])) {
+    switch ($_GET['msg']) {
+        case 'added':
+            $message = 'Student added successfully!';
+            $message_type = 'success';
+            break;
+        case 'updated':
+            $message = 'Student updated successfully!';
+            $message_type = 'success';
+            break;
+        case 'deleted':
+            $message = 'Student deleted successfully!';
+            $message_type = 'success';
+            break;
+        case 'bulk':
+            $message = 'Bulk action completed!';
+            $message_type = 'success';
+            break;
+        case 'notfound':
+            $message = 'Student not found!';
+            $message_type = 'danger';
+            break;
+    }
+}
+
+if ($message): ?>
+<div class="alert alert-<?php echo $message_type; ?> alert-dismissible fade show py-2 mb-3" role="alert" style="font-size: 0.85rem;">
+    <i class="bi bi-<?php echo $message_type == 'success' ? 'check-circle' : 'exclamation-triangle'; ?> me-1"></i>
+    <?php echo $message; ?>
+    <?php if ($message_type != 'danger' && $message_type != 'warning'): ?>
+    <button type="button" class="btn-close" data-bs-dismiss="alert" aria-label="Close" style="font-size: 0.7rem;"></button>
+    <?php endif; ?>
+</div>
+<?php endif; ?>
+
+<!-- Statistics Cards - Compact -->
+<div class="row g-2 mb-3">
+    <div class="col-md-3">
+        <div class="card stat-card border-start-primary py-2">
+            <div class="card-body p-2">
+                <div class="d-flex justify-content-between align-items-center">
+                    <div>
+                        <h6 class="text-muted mb-0" style="font-size: 0.75rem;">Total</h6>
+                        <h4 class="mb-0" style="font-size: 1.2rem;"><?php echo number_format(count($students)); ?></h4>
+                    </div>
+                    <i class="bi bi-people text-primary" style="font-size: 1.8rem; opacity: 0.7;"></i>
+                </div>
+            </div>
+        </div>
+    </div>
+
+    <div class="col-md-3">
+        <div class="card stat-card border-start-success py-2">
+            <div class="card-body p-2">
+                <div class="d-flex justify-content-between align-items-center">
+                    <div>
+                        <h6 class="text-muted mb-0" style="font-size: 0.75rem;">Active</h6>
+                        <h4 class="mb-0" style="font-size: 1.2rem;">
+                            <?php
+                            $active_count = 0;
+                            foreach ($students as $student) {
+                                $active_count += $student['status'];
+                            }
+                            echo number_format($active_count);
+                            ?>
+                        </h4>
+                    </div>
+                    <i class="bi bi-person-check text-success" style="font-size: 1.8rem; opacity: 0.7;"></i>
+                </div>
+            </div>
+        </div>
+    </div>
+
+    <div class="col-md-3">
+        <div class="card stat-card border-start-info py-2">
+            <div class="card-body p-2">
+                <div class="d-flex justify-content-between align-items-center">
+                    <div>
+                        <h6 class="text-muted mb-0" style="font-size: 0.75rem;">Inactive</h6>
+                        <h4 class="mb-0" style="font-size: 1.2rem;">
+                            <?php
+                            $inactive_count = count($students) - $active_count;
+                            echo number_format($inactive_count);
+                            ?>
+                        </h4>
+                    </div>
+                    <i class="bi bi-person-x text-info" style="font-size: 1.8rem; opacity: 0.7;"></i>
+                </div>
+            </div>
+        </div>
+    </div>
+
+    <div class="col-md-3">
+        <div class="card stat-card border-start-warning py-2">
+            <div class="card-body p-2">
+                <div class="d-flex justify-content-between align-items-center">
+                    <div>
+                        <h6 class="text-muted mb-0" style="font-size: 0.75rem;">Departments</h6>
+                        <h4 class="mb-0" style="font-size: 1.2rem;">
+                            <?php
+                            $sql = "SELECT COUNT(*) as count FROM departments WHERE status = 1";
+                            $result = mysqli_query($conn, $sql);
+                            echo $result ? mysqli_fetch_assoc($result)['count'] : 0;
+                            ?>
+                        </h4>
+                    </div>
+                    <i class="bi bi-building text-warning" style="font-size: 1.8rem; opacity: 0.7;"></i>
+                </div>
+            </div>
+        </div>
+    </div>
+</div>
+
+<!-- Students Table -->
+<form method="POST" action="" id="bulkForm">
+<input type="hidden" name="csrf_token" value="<?php echo $csrf_token; ?>">
+<div class="card shadow-sm mb-4">
+    <div class="card-header py-2">
+        <div class="d-flex justify-content-between align-items-center">
+            <h6 class="mb-0" style="font-size: 0.9rem;">
+                <i class="bi bi-people me-1"></i> Student List
+            </h6>
+            <div class="d-flex">
+                <input type="text" id="searchInput" class="form-control form-control-sm me-2" 
+                       placeholder="Search..." style="width: 180px; height: 28px; font-size: 0.8rem;">
+                <div class="btn-group btn-group-sm">
+                    <button class="btn btn-outline-secondary btn-xs" type="button" onclick="printReport()" title="Print">
+                        <i class="bi bi-printer"></i>
+                    </button>
+                    <button type="submit" name="export_excel" class="btn btn-outline-primary btn-xs" title="Export">
+                        <i class="bi bi-download"></i>
+                    </button>
+                </div>
+            </div>
+        </div>
+    </div>
+    <div class="card-body p-0">
+        <!-- Bulk Actions Bar -->
+        <div class="bulk-actions-bar p-2 bg-light border-bottom" style="display: none; font-size: 0.8rem;">
+            <div class="d-flex align-items-center">
+                <div class="form-check me-2">
+                    <input class="form-check-input" type="checkbox" id="selectAll" style="transform: scale(0.8);">
+                    <label class="form-check-label" for="selectAll">
+                        <span id="selectedCount">0</span> selected
+                    </label>
+                </div>
+                <select class="form-select form-select-sm me-2" name="bulk_action" style="width: 130px; height: 26px; font-size: 0.8rem;">
+                    <option value="">Bulk Actions</option>
+                    <option value="activate">Activate</option>
+                    <option value="deactivate">Deactivate</option>
+                    <option value="delete">Delete</option>
+                </select>
+                <button type="submit" class="btn btn-primary btn-sm py-0 px-2" style="font-size: 0.8rem;">Apply</button>
+                <button type="button" class="btn btn-outline-secondary btn-sm py-0 px-2 ms-1" style="font-size: 0.8rem;" onclick="clearBulkSelection()">
+                    Cancel
+                </button>
+            </div>
+        </div>
+        
+        <div class="table-responsive">
+            <table class="table table-hover table-sm mb-0" id="studentsTable">
+                <thead class="table-light">
+                    <tr>
+                        <th width="20">
+                            <input type="checkbox" id="toggleAll" style="transform: scale(0.8);">
+                        </th>
+                        <th width="30">#</th>
+                        <th width="90">Student ID</th>
+                        <th>Student</th>
+                        <th width="150">Course</th>
+                        <th width="60">Year</th>
+                        <th width="80">Status</th>
+                        <th width="120" class="text-center">Actions</th>
+                    </tr>
+                </thead>
+                <tbody>
+                    <?php if (empty($students)): ?>
+                        <tr>
+                            <td colspan="8" class="text-center py-3">
+                                <i class="bi bi-people text-muted" style="font-size: 2rem;"></i>
+                                <p class="mt-1 mb-0" style="font-size: 0.85rem;">No students found.</p>
+                                <a href="add_student.php" class="btn btn-primary btn-sm mt-2">
+                                    <i class="bi bi-person-plus me-1"></i> Add First Student
+                                </a>
+                            </td>
+                        </tr>
+                    <?php else: ?>
+                        <?php $counter = 1; ?>
+                        <?php foreach ($students as $student): ?>
+                        <tr>
+                            <td>
+                                <input type="checkbox" class="student-check" name="selected_students[]" 
+                                       value="<?php echo $student['id']; ?>" style="transform: scale(0.8);">
+                            </td>
+                            <td class="text-muted"><?php echo $counter++; ?></td>
+                            <td>
+                                <small class="text-primary fw-bold"><?php echo htmlspecialchars($student['student_id']); ?></small>
+                            </td>
+                            <td>
+                                <div class="d-flex align-items-center">
+                                    <div class="avatar me-2">
+                                        <?php if (!empty($student['picture_path']) && file_exists('../' . $student['picture_path'])): ?>
+                                            <img src="../<?php echo htmlspecialchars($student['picture_path']); ?>" 
+                                                 alt="<?php echo htmlspecialchars($student['full_name']); ?>" 
+                                                 class="rounded-circle" 
+                                                 style="width: 30px; height: 30px; object-fit: cover;">
+                                        <?php else: ?>
+                                            <div class="bg-primary rounded-circle d-flex align-items-center justify-content-center" 
+                                                 style="width: 30px; height: 30px;">
+                                                <i class="bi bi-person text-white" style="font-size: 0.8rem;"></i>
+                                            </div>
+                                        <?php endif; ?>
+                                    </div>
+                                    <div style="font-size: 0.85rem;">
+                                        <div class="fw-bold mb-0" style="font-size: 0.85rem;"><?php echo htmlspecialchars($student['full_name']); ?></div>
+                                        <small class="text-muted"><?php echo htmlspecialchars($student['gender']); ?></small>
+                                    </div>
+                                </div>
+                            </td>
+                            <td style="font-size: 0.8rem;">
+                                <div class="fw-bold"><?php echo htmlspecialchars($student['course_code']); ?></div>
+                                <small class="text-muted"><?php echo htmlspecialchars($student['department_name']); ?></small>
+                            </td>
+                            <td>
+                                <span class="badge bg-info badge-sm">Yr <?php echo $student['year_level']; ?></span>
+                            </td>
+                            <td>
+                                <?php if ($student['status'] == 1): ?>
+                                    <span class="badge bg-success badge-sm">
+                                        <i class="bi bi-check-circle me-1"></i> Active
+                                    </span>
+                                <?php else: ?>
+                                    <span class="badge bg-danger badge-sm">
+                                        <i class="bi bi-x-circle me-1"></i> Inactive
+                                    </span>
+                                <?php endif; ?>
+                            </td>
+                            <td class="text-center">
+                                <div class="btn-group btn-group-sm">
+                                    <a href="view_student.php?id=<?php echo $student['id']; ?>" 
+                                       class="btn btn-info btn-xs" title="View">
+                                        <i class="bi bi-eye"></i>
+                                    </a>
+                                    <button type="button" 
+                                       class="btn btn-warning btn-xs edit-student" title="Edit"
+                                       data-id="<?php echo $student['id']; ?>"
+                                       data-student_id="<?php echo htmlspecialchars($student['student_id']); ?>"
+                                       data-full_name="<?php echo htmlspecialchars($student['full_name']); ?>"
+                                       data-gender_id="<?php echo $student['gender_id']; ?>"
+                                       data-year_level="<?php echo $student['year_level']; ?>"
+                                       data-course_id="<?php echo $student['course_id']; ?>"
+                                       data-department_id="<?php echo $student['department_id']; ?>"
+                                       data-school_id="<?php echo $student['school_id']; ?>"
+                                       data-birth_date="<?php echo $student['birth_date']; ?>"
+                                       data-contact_number="<?php echo htmlspecialchars($student['contact_number']); ?>"
+                                       data-email="<?php echo htmlspecialchars($student['email']); ?>"
+                                       data-address="<?php echo htmlspecialchars($student['address']); ?>"
+                                       data-status="<?php echo $student['status']; ?>">
+                                        <i class="bi bi-pencil"></i>
+                                    </button>
+                                    <div class="btn-group">
+                                        <a href="../qr/generate.php?id=<?php echo $student['id']; ?>" 
+                                           class="btn btn-primary btn-xs" title="QR Code" target="_blank">
+                                            <i class="bi bi-qr-code"></i>
+                                        </a>
+                                        <button type="button" class="btn btn-primary btn-xs dropdown-toggle dropdown-toggle-split" 
+                                                data-bs-toggle="dropdown" style="padding: 0 4px;">
+                                            <span class="visually-hidden">Toggle Dropdown</span>
+                                        </button>
+                                        <ul class="dropdown-menu">
+                                            <li>
+                                                <a class="dropdown-item py-1" href="../qr/generate.php?id=<?php echo $student['id']; ?>&print=1" target="_blank">
+                                                    <i class="bi bi-printer me-2"></i> Print QR
+                                                </a>
+                                            </li>
+                                            <li>
+                                                <a class="dropdown-item py-1" href="../qr/generate.php?id=<?php echo $student['id']; ?>&download=1">
+                                                    <i class="bi bi-download me-2"></i> Download QR
+                                                </a>
+                                            </li>
+                                            <li>
+                                                <a class="dropdown-item py-1" href="../qr/generate.php?id=<?php echo $student['id']; ?>&autoPrint=1" target="_blank">
+                                                    <i class="bi bi-printer-fill me-2"></i> Auto Print
+                                                </a>
+                                            </li>
+                                        </ul>
+                                    </div>
+                                    <button type="button" class="btn btn-danger btn-xs delete-student" 
+                                            data-id="<?php echo $student['id']; ?>" 
+                                            data-name="<?php echo htmlspecialchars($student['full_name']); ?>" 
+                                            title="Delete">
+                                        <i class="bi bi-trash"></i>
+                                    </button>
+                                </div>
+                            </td>
+                        </tr>
+                        <?php endforeach; ?>
+                    <?php endif; ?>
+                </tbody>
+            </table>
+        </div>
+    </div>
+    <div class="card-footer py-1">
+        <div class="row">
+            <div class="col-md-6">
+                <small class="text-muted" style="font-size: 0.75rem;">
+                    <i class="bi bi-info-circle me-1"></i> Showing <?php echo count($students); ?> student(s)
+                </small>
+            </div>
+            <div class="col-md-6 text-md-end">
+                <small class="text-muted" style="font-size: 0.75rem;">
+                    <i class="bi bi-clock me-1"></i> Updated: <?php echo date('h:i A'); ?>
+                </small>
+            </div>
+        </div>
+    </div>
+</div>
+</form>
+
+<!-- Add Student Modal -->
+<div class="modal fade" id="addStudentModal" tabindex="-1" aria-hidden="true">
+  <div class="modal-dialog modal-lg">
+    <div class="modal-content">
+      <div class="modal-header bg-primary text-white py-2">
+        <h6 class="modal-title mb-0"><i class="bi bi-person-plus me-1"></i> Add Student</h6>
+        <button type="button" class="btn-close btn-close-white" data-bs-dismiss="modal"></button>
+      </div>
+      <form method="POST" action="">
+        <div class="modal-body">
+          <div class="row g-2">
+            <div class="col-md-6">
+              <label class="form-label">Student ID *</label>
+              <input class="form-control" name="student_id" required>
+            </div>
+            <div class="col-md-6">
+              <label class="form-label">Full Name *</label>
+              <input class="form-control" name="full_name" required>
+            </div>
+            <div class="col-md-6">
+              <label class="form-label">Gender *</label>
+              <select class="form-select" name="gender_id" required>
+                <option value="">Select Gender</option>
+                <?php foreach ($genders as $g): ?>
+                  <option value="<?php echo $g['id']; ?>"><?php echo htmlspecialchars($g['name']); ?></option>
+                <?php endforeach; ?>
+              </select>
+            </div>
+            <div class="col-md-6">
+              <label class="form-label">Year Level *</label>
+              <select class="form-select" name="year_level" required>
+                <option value="">Select</option>
+                <?php for ($i=1;$i<=4;$i++): ?>
+                  <option value="<?php echo $i; ?>">Year <?php echo $i; ?></option>
+                <?php endfor; ?>
+              </select>
+            </div>
+            <div class="col-md-6">
+              <label class="form-label">School *</label>
+              <select class="form-select" name="school_id" required>
+                <option value="">Select School</option>
+                <?php foreach ($schools as $s): ?>
+                  <option value="<?php echo $s['id']; ?>"><?php echo htmlspecialchars($s['name']); ?></option>
+                <?php endforeach; ?>
+              </select>
+            </div>
+            <div class="col-md-6">
+              <label class="form-label">Department *</label>
+              <select class="form-select" name="department_id" required>
+                <option value="">Select Department</option>
+                <?php foreach ($departments as $d): ?>
+                  <option value="<?php echo $d['id']; ?>"><?php echo htmlspecialchars($d['name']); ?></option>
+                <?php endforeach; ?>
+              </select>
+            </div>
+            <div class="col-md-6">
+              <label class="form-label">Course *</label>
+              <select class="form-select" name="course_id" required>
+                <option value="">Select Course</option>
+                <?php foreach ($courses as $c): ?>
+                  <option value="<?php echo $c['id']; ?>"><?php echo htmlspecialchars($c['code']); ?> - <?php echo htmlspecialchars($c['name']); ?></option>
+                <?php endforeach; ?>
+              </select>
+            </div>
+            <div class="col-md-6">
+              <label class="form-label">Birth Date</label>
+              <input type="date" class="form-control" name="birth_date" max="<?php echo date('Y-m-d'); ?>">
+            </div>
+            <div class="col-md-6">
+              <label class="form-label">Email</label>
+              <input class="form-control" name="email">
+            </div>
+            <div class="col-md-6">
+              <label class="form-label">Contact</label>
+              <input class="form-control" name="contact_number">
+            </div>
+            <div class="col-12">
+              <label class="form-label">Address</label>
+              <textarea class="form-control" name="address" rows="2"></textarea>
+            </div>
+          </div>
+        </div>
+        <div class="modal-footer py-2">
+          <button type="button" class="btn btn-secondary btn-sm" data-bs-dismiss="modal">Cancel</button>
+          <button type="submit" class="btn btn-primary btn-sm" name="modal_add_student">Save</button>
+        </div>
+      </form>
+    </div>
+  </div>
+</div>
+
+<!-- Edit Student Modal -->
+<div class="modal fade" id="editStudentModal" tabindex="-1" aria-hidden="true">
+  <div class="modal-dialog modal-lg">
+    <div class="modal-content">
+      <div class="modal-header bg-warning py-2">
+        <h6 class="modal-title mb-0"><i class="bi bi-pencil me-1"></i> Edit Student</h6>
+        <button type="button" class="btn-close" data-bs-dismiss="modal"></button>
+      </div>
+      <form method="POST" action="">
+        <div class="modal-body">
+          <input type="hidden" name="id" id="edit_id">
+          <div class="row g-2">
+            <div class="col-md-6">
+              <label class="form-label">Student ID *</label>
+              <input class="form-control" name="student_id" id="edit_student_id" required>
+            </div>
+            <div class="col-md-6">
+              <label class="form-label">Full Name *</label>
+              <input class="form-control" name="full_name" id="edit_full_name" required>
+            </div>
+            <div class="col-md-6">
+              <label class="form-label">Gender *</label>
+              <select class="form-select" name="gender_id" id="edit_gender_id" required>
+                <option value="">Select Gender</option>
+                <?php foreach ($genders as $g): ?>
+                  <option value="<?php echo $g['id']; ?>"><?php echo htmlspecialchars($g['name']); ?></option>
+                <?php endforeach; ?>
+              </select>
+            </div>
+            <div class="col-md-6">
+              <label class="form-label">Year Level *</label>
+              <select class="form-select" name="year_level" id="edit_year_level" required>
+                <option value="">Select</option>
+                <?php for ($i=1;$i<=4;$i++): ?>
+                  <option value="<?php echo $i; ?>">Year <?php echo $i; ?></option>
+                <?php endfor; ?>
+              </select>
+            </div>
+            <div class="col-md-6">
+              <label class="form-label">School *</label>
+              <select class="form-select" name="school_id" id="edit_school_id" required>
+                <option value="">Select School</option>
+                <?php foreach ($schools as $s): ?>
+                  <option value="<?php echo $s['id']; ?>"><?php echo htmlspecialchars($s['name']); ?></option>
+                <?php endforeach; ?>
+              </select>
+            </div>
+            <div class="col-md-6">
+              <label class="form-label">Department *</label>
+              <select class="form-select" name="department_id" id="edit_department_id" required>
+                <option value="">Select Department</option>
+                <?php foreach ($departments as $d): ?>
+                  <option value="<?php echo $d['id']; ?>"><?php echo htmlspecialchars($d['name']); ?></option>
+                <?php endforeach; ?>
+              </select>
+            </div>
+            <div class="col-md-6">
+              <label class="form-label">Course *</label>
+              <select class="form-select" name="course_id" id="edit_course_id" required>
+                <option value="">Select Course</option>
+                <?php foreach ($courses as $c): ?>
+                  <option value="<?php echo $c['id']; ?>"><?php echo htmlspecialchars($c['code']); ?> - <?php echo htmlspecialchars($c['name']); ?></option>
+                <?php endforeach; ?>
+              </select>
+            </div>
+            <div class="col-md-6">
+              <label class="form-label">Birth Date</label>
+              <input type="date" class="form-control" name="birth_date" id="edit_birth_date" max="<?php echo date('Y-m-d'); ?>">
+            </div>
+            <div class="col-md-6">
+              <label class="form-label">Email</label>
+              <input class="form-control" name="email" id="edit_email">
+            </div>
+            <div class="col-md-6">
+              <label class="form-label">Contact</label>
+              <input class="form-control" name="contact_number" id="edit_contact_number">
+            </div>
+            <div class="col-12">
+              <label class="form-label">Address</label>
+              <textarea class="form-control" name="address" id="edit_address" rows="2"></textarea>
+            </div>
+            <div class="col-12">
+              <div class="form-check form-switch">
+                <input class="form-check-input" type="checkbox" name="status" id="edit_status" value="1">
+                <label class="form-check-label" for="edit_status">Active</label>
+              </div>
+            </div>
+          </div>
+        </div>
+        <div class="modal-footer py-2">
+          <button type="button" class="btn btn-secondary btn-sm" data-bs-dismiss="modal">Cancel</button>
+          <button type="submit" class="btn btn-warning btn-sm" name="modal_update_student">Update</button>
+        </div>
+      </form>
+    </div>
+  </div>
+</div>
+
+<!-- Delete Confirmation Modal -->
+<div class="modal fade" id="deleteStudentModal" tabindex="-1" aria-labelledby="deleteStudentModalLabel" aria-hidden="true">
+  <div class="modal-dialog modal-sm">
+    <div class="modal-content">
+      <div class="modal-header bg-danger text-white py-2">
+        <h6 class="modal-title mb-0" id="deleteStudentModalLabel"><i class="bi bi-exclamation-triangle me-1"></i>Confirm Delete</h6>
+        <button type="button" class="btn-close btn-close-white" data-bs-dismiss="modal" aria-label="Close"></button>
+      </div>
+      <form method="POST" action="">
+        <div class="modal-body p-3" style="font-size: 0.9rem;">
+          <p class="mb-2">Delete student: <strong id="modalStudentName"></strong>?</p>
+          <p class="text-danger mb-0"><small>This action cannot be undone.</small></p>
+          <input type="hidden" name="delete_student" value="1">
+          <input type="hidden" name="id" id="modalStudentId" value="">
+        </div>
+        <div class="modal-footer py-2">
+          <button type="button" class="btn btn-secondary btn-sm" data-bs-dismiss="modal">Cancel</button>
+          <button type="submit" class="btn btn-danger btn-sm" id="modalConfirmDelete">Delete</button>
+        </div>
+      </form>
+    </div>
+  </div>
+</div>
+
+<?php 
+$page_scripts = '
+<script>
+$(document).ready(function() {
+    // Initialize DataTable
+    const table = $("#studentsTable").DataTable({
+        pageLength: 25,
+        lengthMenu: [[15, 25, 50, 100, -1], [15, 25, 50, 100, "All"]],
+        order: [[2, "asc"]], // Sort by Student ID
+        responsive: true,
+        columnDefs: [
+            { orderable: false, targets: [0, 1, 7] },
+            { searchable: false, targets: [0, 1, 5, 6, 7] },
+            { visible: false, targets: [0] }
+        ],
+        language: {
+            search: "_INPUT_",
+            searchPlaceholder: "Search...",
+            lengthMenu: "Show _MENU_",
+            info: "Showing _START_ to _END_ of _TOTAL_",
+            infoEmpty: "No students",
+            infoFiltered: "(filtered from _MAX_ total)"
+        }
+    });
+    
+    // Open Add modal
+    document.getElementById('openAddModal').addEventListener('click', function(){
+        const form = document.querySelector('#addStudentModal form');
+        form.reset();
+        const addModal = new bootstrap.Modal(document.getElementById('addStudentModal'));
+        addModal.show();
+    });
+
+    // Open Edit modal and populate
+    $(document).on('click', '.edit-student', function(){
+        const d = $(this).data();
+        $('#edit_id').val(d.id);
+        $('#edit_student_id').val(d.student_id);
+        $('#edit_full_name').val(d.full_name);
+        $('#edit_gender_id').val(String(d.gender_id));
+        $('#edit_year_level').val(String(d.year_level));
+        $('#edit_course_id').val(String(d.course_id));
+        $('#edit_department_id').val(String(d.department_id));
+        $('#edit_school_id').val(String(d.school_id));
+        $('#edit_birth_date').val(d.birth_date && d.birth_date !== '0000-00-00' ? d.birth_date : '');
+        $('#edit_contact_number').val(d.contact_number || '');
+        $('#edit_email').val(d.email || '');
+        $('#edit_address').val(d.address || '');
+        $('#edit_status').prop('checked', Number(d.status) === 1);
+        const editModal = new bootstrap.Modal(document.getElementById('editStudentModal'));
+        editModal.show();
+    });
+
+    // Custom search
+    $("#searchInput").on("keyup", function() {
+        table.search($(this).val()).draw();
+    });
+    
+    // Bulk selection functionality
+    $("#toggleAll").change(function() {
+        $(".student-check").prop("checked", this.checked);
+        updateBulkSelection();
+    });
+    
+    $(document).on("change", ".student-check", function() {
+        if (!this.checked) {
+            $("#toggleAll").prop("checked", false);
+        }
+        updateBulkSelection();
+    });
+    
+    // Delete confirmation
+    $(document).on("click", ".delete-student", function(e) {
+        e.preventDefault();
+        const studentId = $(this).data("id");
+        const studentName = $(this).data("name");
+        
+        // Create confirmation dialog
+        const confirmed = confirm(`Are you sure you want to delete student "${studentName}"?\\nThis action cannot be undone.`);
+        
+        if (confirmed) {
+            // Create and submit form
+            const form = document.createElement("form");
+            form.method = "POST";
+            form.action = "";
+            
+            const deleteInput = document.createElement("input");
+            deleteInput.type = "hidden";
+            deleteInput.name = "delete_student";
+            deleteInput.value = "1";
+            form.appendChild(deleteInput);
+            
+            const idInput = document.createElement("input");
+            idInput.type = "hidden";
+            idInput.name = "id";
+            idInput.value = studentId;
+            form.appendChild(idInput);
+            
+            const csrfInput = document.createElement("input");
+            csrfInput.type = "hidden";
+            csrfInput.name = "csrf_token";
+            csrfInput.value = "<?php echo $csrf_token; ?>";
+            form.appendChild(csrfInput);
+
+            document.body.appendChild(form);
+            form.submit();
+        }
+    });
+    
+    // Bulk form validation
+    $("#bulkForm").submit(function(e) {
+        const selectedCount = $(".student-check:checked").length;
+        const action = $("select[name=\'bulk_action\']").val();
+        
+        if (selectedCount === 0) {
+            e.preventDefault();
+            alert("Please select at least one student.");
+            return false;
+        }
+        
+        if (!action) {
+            e.preventDefault();
+            alert("Please select a bulk action.");
+            return false;
+        }
+        
+        if (action === "delete") {
+            e.preventDefault();
+            if (confirm(`Delete ${selectedCount} student(s)?\\nThis action cannot be undone.`)) {
+                return true;
+            }
+            return false;
+        }
+        
+        return true;
+    });
+});
+
+// Bulk selection functions
+function updateBulkSelection() {
+    const selectedCount = $(".student-check:checked").length;
+    $("#selectedCount").text(selectedCount);
+    
+    if (selectedCount > 0) {
+        $(".bulk-actions-bar").show();
+        $("#studentsTable_wrapper .col-sm-12:first").css("margin-top", "50px");
+    } else {
+        $(".bulk-actions-bar").hide();
+        $("#studentsTable_wrapper .col-sm-12:first").css("margin-top", "0");
+    }
+    
+    const totalCheckboxes = $(".student-check").length;
+    $("#toggleAll").prop("checked", selectedCount === totalCheckboxes && totalCheckboxes > 0);
+}
+
+function clearBulkSelection() {
+    $(".student-check").prop("checked", false);
+    $("#toggleAll").prop("checked", false);
+    updateBulkSelection();
+}
+
+// Print Report
+function printReport() {
+    const table = $("#studentsTable").DataTable();
+    const data = table.rows({ search: \'applied\' }).data().toArray();
+    
+    if (data.length === 0) {
+        alert("No data to print.");
+        return;
+    }
+    
+    const printWindow = window.open("", "_blank");
+    printWindow.document.write(`
+        <!DOCTYPE html>
+        <html>
+        <head>
+            <title>Student List - <?php echo date("Y-m-d"); ?></title>
+            <style>
+                body { font-family: Arial, sans-serif; margin: 15px; font-size: 12px; }
+                h1 { text-align: center; margin-bottom: 20px; font-size: 16px; }
+                .report-info { margin-bottom: 15px; font-size: 11px; }
+                table { width: 100%; border-collapse: collapse; margin-bottom: 15px; font-size: 11px; }
+                th, td { border: 1px solid #ddd; padding: 5px; text-align: left; }
+                th { background-color: #f2f2f2; }
+                .footer { text-align: center; margin-top: 20px; font-size: 10px; color: #666; }
+                @media print { .no-print { display: none; } button { display: none; } }
+            </style>
+        </head>
+        <body>
+            <h1>Student List</h1>
+            <div class="report-info">
+                <p><strong>Date:</strong> <?php echo date("m/d/Y h:i A"); ?></p>
+                <p><strong>Total:</strong> ${data.length} students</p>
+            </div>
+            <table>
+                <thead>
+                    <tr>
+                        <th>#</th>
+                        <th>Student ID</th>
+                        <th>Name</th>
+                        <th>Course</th>
+                        <th>Year</th>
+                        <th>Status</th>
+                    </tr>
+                </thead>
+                <tbody>
+                    ${data.map((row, index) => {
+                        const studentId = $(row[2]).find(".text-primary").text() || row[2];
+                        const studentName = $(row[3]).find(".fw-bold").text() || row[3];
+                        const course = $(row[4]).text();
+                        const year = $(row[5]).text();
+                        const status = $(row[6]).text();
+                        
+                        return `
+                            <tr>
+                                <td>${index + 1}</td>
+                                <td>${studentId}</td>
+                                <td>${studentName}</td>
+                                <td>${course}</td>
+                                <td>${year}</td>
+                                <td>${status}</td>
+                            </tr>
+                        `;
+                    }).join("")}
+                </tbody>
+            </table>
+            <div class="footer">
+                Student Management System
+            </div>
+            <div class="no-print" style="text-align: center; margin-top: 15px;">
+                <button onclick="window.print()">Print</button>
+                <button onclick="window.close()" style="margin-left: 10px;">Close</button>
+            </div>
+            <script>window.onload = function() { window.print(); };<\/script>
+        </body>
+        </html>
+    `);
+    printWindow.document.close();
+}
+</script>
+';
+
+$page_scripts .= '\n<script>\n$(document).off("click", ".delete-student").on("click", ".delete-student", function(e){ e.preventDefault(); const studentId = $(this).data("id"); const studentName = $(this).data("name"); document.getElementById("modalStudentId").value = studentId; document.getElementById("modalStudentName").textContent = studentName; const modalEl = document.getElementById("deleteStudentModal"); const deleteModal = new bootstrap.Modal(modalEl); deleteModal.show(); });\n<\/script>\n';
+
+include '../includes/footer.php';
+?>
\ No newline at end of file
diff --git a/src-backup/admin/process_user.php b/src-backup/admin/process_user.php
new file mode 100644
index 0000000..bda5296
--- /dev/null
+++ b/src-backup/admin/process_user.php
@@ -0,0 +1,200 @@
+<?php
+session_start();
+require_once __DIR__ . '/../includes/database.php';
+
+if (!isset($_SESSION['user_id']) || $_SESSION['role'] !== 'admin') {
+    $_SESSION['message'] = 'Unauthorized access!';
+    $_SESSION['message_type'] = 'danger';
+    header("Location: ../auth/login.php");
+    exit();
+}
+
+$action = $_POST['action'] ?? '';
+
+switch ($action) {
+    case 'add':
+        addUser();
+        break;
+    case 'edit':
+        editUser();
+        break;
+    case 'toggle_status':
+        toggleUserStatus();
+        break;
+    case 'delete':
+        deleteUser();
+        break;
+    default:
+        $_SESSION['message'] = 'Invalid action!';
+        $_SESSION['message_type'] = 'danger';
+        header("Location: users.php");
+        exit();
+}
+
+function addUser() {
+    global $pdo;
+    
+    $full_name = trim($_POST['full_name']);
+    $username = trim($_POST['username']);
+    $email = trim($_POST['email']);
+    $password = $_POST['password'];
+    $role = $_POST['role'];
+    $status = $_POST['status'] ?? 1;
+    
+    // Validation
+    if (empty($full_name) || empty($username) || empty($password) || empty($role)) {
+        $_SESSION['message'] = 'All required fields must be filled!';
+        $_SESSION['message_type'] = 'danger';
+        header("Location: users.php");
+        exit();
+    }
+    
+    if (strlen($password) < 6) {
+        $_SESSION['message'] = 'Password must be at least 6 characters!';
+        $_SESSION['message_type'] = 'danger';
+        header("Location: users.php");
+        exit();
+    }
+    
+    // Check if username already exists
+    $checkQuery = "SELECT COUNT(*) FROM users WHERE username = ?";
+    $stmt = $pdo->prepare($checkQuery);
+    $stmt->execute([$username]);
+    
+    if ($stmt->fetchColumn() > 0) {
+        $_SESSION['message'] = 'Username already exists!';
+        $_SESSION['message_type'] = 'danger';
+        header("Location: users.php");
+        exit();
+    }
+    
+    // Hash password
+    $hashed_password = password_hash($password, PASSWORD_DEFAULT);
+    
+    // Insert user
+    $query = "INSERT INTO users (full_name, username, email, password, role, status) 
+              VALUES (?, ?, ?, ?, ?, ?)";
+    
+    try {
+        $stmt = $pdo->prepare($query);
+        $stmt->execute([$full_name, $username, $email, $hashed_password, $role, $status]);
+        
+        $_SESSION['message'] = 'User added successfully!';
+        $_SESSION['message_type'] = 'success';
+        header("Location: users.php");
+        exit();
+    } catch (PDOException $e) {
+        $_SESSION['message'] = 'Error adding user: ' . $e->getMessage();
+        $_SESSION['message_type'] = 'danger';
+        header("Location: users.php");
+        exit();
+    }
+}
+
+function editUser() {
+    global $pdo;
+    
+    $user_id = $_POST['user_id'];
+    $full_name = trim($_POST['full_name']);
+    $username = trim($_POST['username']);
+    $email = trim($_POST['email']);
+    $password = $_POST['password'];
+    $role = $_POST['role'];
+    $status = $_POST['status'] ?? 1;
+    
+    // Validation
+    if (empty($full_name) || empty($username) || empty($role)) {
+        $_SESSION['message'] = 'All required fields must be filled!';
+        $_SESSION['message_type'] = 'danger';
+        header("Location: users.php");
+        exit();
+    }
+    
+    // Check if username already exists (excluding current user)
+    $checkQuery = "SELECT COUNT(*) FROM users WHERE username = ? AND id != ?";
+    $stmt = $pdo->prepare($checkQuery);
+    $stmt->execute([$username, $user_id]);
+    
+    if ($stmt->fetchColumn() > 0) {
+        $_SESSION['message'] = 'Username already exists!';
+        $_SESSION['message_type'] = 'danger';
+        header("Location: users.php");
+        exit();
+    }
+    
+    // Update query
+    if (!empty($password)) {
+        if (strlen($password) < 6) {
+            $_SESSION['message'] = 'Password must be at least 6 characters!';
+            $_SESSION['message_type'] = 'danger';
+            header("Location: users.php");
+            exit();
+        }
+        
+        $hashed_password = password_hash($password, PASSWORD_DEFAULT);
+        $query = "UPDATE users SET full_name = ?, username = ?, email = ?, password = ?, role = ?, status = ? WHERE id = ?";
+        $params = [$full_name, $username, $email, $hashed_password, $role, $status, $user_id];
+    } else {
+        $query = "UPDATE users SET full_name = ?, username = ?, email = ?, role = ?, status = ? WHERE id = ?";
+        $params = [$full_name, $username, $email, $role, $status, $user_id];
+    }
+    
+    try {
+        $stmt = $pdo->prepare($query);
+        $stmt->execute($params);
+        
+        $_SESSION['message'] = 'User updated successfully!';
+        $_SESSION['message_type'] = 'success';
+        header("Location: users.php");
+        exit();
+    } catch (PDOException $e) {
+        $_SESSION['message'] = 'Error updating user: ' . $e->getMessage();
+        $_SESSION['message_type'] = 'danger';
+        header("Location: users.php");
+        exit();
+    }
+}
+
+function toggleUserStatus() {
+    global $pdo;
+    
+    $user_id = $_POST['user_id'];
+    
+    // Get current status
+    $query = "SELECT status FROM users WHERE id = ?";
+    $stmt = $pdo->prepare($query);
+    $stmt->execute([$user_id]);
+    $current = $stmt->fetchColumn();
+    
+    $new_status = $current ? 0 : 1;
+    
+    // Update status
+    $updateQuery = "UPDATE users SET status = ? WHERE id = ?";
+    $stmt = $pdo->prepare($updateQuery);
+    $stmt->execute([$new_status, $user_id]);
+    
+    echo json_encode(['success' => true, 'message' => 'Status updated successfully']);
+}
+
+function deleteUser() {
+    global $pdo;
+    
+    $user_id = $_POST['user_id'];
+    
+    // Prevent deleting yourself
+    if ($user_id == $_SESSION['user_id']) {
+        echo json_encode(['success' => false, 'message' => 'You cannot delete your own account!']);
+        exit();
+    }
+    
+    try {
+        $query = "DELETE FROM users WHERE id = ?";
+        $stmt = $pdo->prepare($query);
+        $stmt->execute([$user_id]);
+        
+        echo json_encode(['success' => true, 'message' => 'User deleted successfully']);
+    } catch (PDOException $e) {
+        echo json_encode(['success' => false, 'message' => 'Error deleting user: ' . $e->getMessage()]);
+    }
+}
+?>
\ No newline at end of file
diff --git a/src-backup/admin/profile.php b/src-backup/admin/profile.php
new file mode 100644
index 0000000..d27bcc1
--- /dev/null
+++ b/src-backup/admin/profile.php
@@ -0,0 +1,754 @@
+<?php
+require_once '../includes/config.php';
+
+// Check if user is logged in
+if (!isset($_SESSION['logged_in']) || $_SESSION['logged_in'] !== true) {
+    header('Location: ../auth/login.php');
+    exit();
+}
+
+$title = "My Profile";
+
+// Initialize variables
+$message = '';
+$message_type = '';
+$user_id = $_SESSION['user_id'];
+
+// Get current user data
+$sql = "SELECT * FROM users WHERE id = ?";
+$stmt = mysqli_prepare($conn, $sql);
+mysqli_stmt_bind_param($stmt, 'i', $user_id);
+mysqli_stmt_execute($stmt);
+$result = mysqli_stmt_get_result($stmt);
+
+if (!$result || mysqli_num_rows($result) == 0) {
+    header('Location: logout.php');
+    exit();
+}
+
+$user = mysqli_fetch_assoc($result);
+mysqli_stmt_close($stmt);
+
+// Handle profile update
+if ($_SERVER['REQUEST_METHOD'] === 'POST') {
+    if (isset($_POST['update_profile'])) {
+        $full_name = escape($conn, trim($_POST['full_name']));
+        $email = escape($conn, trim($_POST['email']));
+        $contact_number = escape($conn, trim($_POST['contact_number']));
+        $address = escape($conn, trim($_POST['address']));
+        
+        // Validate email
+        if (!empty($email) && !filter_var($email, FILTER_VALIDATE_EMAIL)) {
+            $message = 'Invalid email address.';
+            $message_type = 'danger';
+        } else {
+            // Check if email already exists
+            $check_sql = "SELECT id FROM users WHERE email = ? AND id != ?";
+            $check_stmt = mysqli_prepare($conn, $check_sql);
+            mysqli_stmt_bind_param($check_stmt, 'si', $email, $user_id);
+            mysqli_stmt_execute($check_stmt);
+            mysqli_stmt_store_result($check_stmt);
+            
+            if (mysqli_stmt_num_rows($check_stmt) > 0) {
+                $message = 'Email already exists.';
+                $message_type = 'danger';
+            } else {
+                // Update profile
+                $update_sql = "UPDATE users SET 
+                              full_name = ?, 
+                              email = ?, 
+                              contact_number = ?, 
+                              address = ?, 
+                              updated_at = NOW() 
+                              WHERE id = ?";
+                
+                $update_stmt = mysqli_prepare($conn, $update_sql);
+                mysqli_stmt_bind_param($update_stmt, 'ssssi', 
+                    $full_name, $email, $contact_number, $address, $user_id);
+                
+                if (mysqli_stmt_execute($update_stmt)) {
+                    // Update session data
+                    $_SESSION['full_name'] = $full_name;
+                    $_SESSION['email'] = $email;
+                    
+                    $message = 'Profile updated!';
+                    $message_type = 'success';
+                    
+                    // Refresh user data
+                    $user['full_name'] = $full_name;
+                    $user['email'] = $email;
+                    $user['contact_number'] = $contact_number;
+                    $user['address'] = $address;
+                } else {
+                    $message = 'Error updating profile.';
+                    $message_type = 'danger';
+                }
+                mysqli_stmt_close($update_stmt);
+            }
+            mysqli_stmt_close($check_stmt);
+        }
+    }
+    
+    // Handle password change
+    elseif (isset($_POST['change_password'])) {
+        $current_password = trim($_POST['current_password']);
+        $new_password = trim($_POST['new_password']);
+        $confirm_password = trim($_POST['confirm_password']);
+        
+        // Validate passwords
+        if (empty($current_password) || empty($new_password) || empty($confirm_password)) {
+            $message = 'All fields required.';
+            $message_type = 'danger';
+        } elseif ($new_password !== $confirm_password) {
+            $message = 'Passwords do not match.';
+            $message_type = 'danger';
+        } elseif (strlen($new_password) < 6) {
+            $message = 'Password must be at least 6 characters.';
+            $message_type = 'danger';
+        } else {
+            // Verify current password
+            $check_sql = "SELECT password FROM users WHERE id = ?";
+            $check_stmt = mysqli_prepare($conn, $check_sql);
+            mysqli_stmt_bind_param($check_stmt, 'i', $user_id);
+            mysqli_stmt_execute($check_stmt);
+            mysqli_stmt_bind_result($check_stmt, $hashed_password);
+            mysqli_stmt_fetch($check_stmt);
+            mysqli_stmt_close($check_stmt);
+            
+            if (!password_verify($current_password, $hashed_password)) {
+                $message = 'Current password incorrect.';
+                $message_type = 'danger';
+            } else {
+                // Hash new password
+                $new_hashed_password = password_hash($new_password, PASSWORD_DEFAULT);
+                
+                // Update password
+                $update_sql = "UPDATE users SET password = ?, updated_at = NOW() WHERE id = ?";
+                $update_stmt = mysqli_prepare($conn, $update_sql);
+                mysqli_stmt_bind_param($update_stmt, 'si', $new_hashed_password, $user_id);
+                
+                if (mysqli_stmt_execute($update_stmt)) {
+                    $message = 'Password changed!';
+                    $message_type = 'success';
+                } else {
+                    $message = 'Error changing password.';
+                    $message_type = 'danger';
+                }
+                mysqli_stmt_close($update_stmt);
+            }
+        }
+    }
+    
+    // Handle profile picture upload
+    elseif (isset($_FILES['profile_picture']) && $_FILES['profile_picture']['error'] == 0) {
+        $allowed_extensions = ['jpg', 'jpeg', 'png', 'gif'];
+        $max_file_size = 2 * 1024 * 1024; // 2MB
+        
+        $file_name = $_FILES['profile_picture']['name'];
+        $file_tmp = $_FILES['profile_picture']['tmp_name'];
+        $file_size = $_FILES['profile_picture']['size'];
+        
+        // Get file extension
+        $file_ext = strtolower(pathinfo($file_name, PATHINFO_EXTENSION));
+        
+        // Validate file
+        if (!in_array($file_ext, $allowed_extensions)) {
+            $message = 'Only JPG, PNG, GIF allowed.';
+            $message_type = 'danger';
+        } elseif ($file_size > $max_file_size) {
+            $message = 'File must be < 2MB.';
+            $message_type = 'danger';
+        } else {
+            // Create uploads directory
+            $upload_dir = '../uploads/profile_pictures/';
+            if (!file_exists($upload_dir)) {
+                mkdir($upload_dir, 0777, true);
+            }
+            
+            // Generate unique filename
+            $new_filename = 'profile_' . $user_id . '_' . time() . '.' . $file_ext;
+            $destination = $upload_dir . $new_filename;
+            
+            // Delete old profile picture
+            if (!empty($user['profile_picture'])) {
+                $old_file = '../' . $user['profile_picture'];
+                if (file_exists($old_file)) {
+                    @unlink($old_file);
+                }
+            }
+            
+            // Move uploaded file
+            if (move_uploaded_file($file_tmp, $destination)) {
+                // Update database
+                $relative_path = 'uploads/profile_pictures/' . $new_filename;
+                $update_sql = "UPDATE users SET profile_picture = ?, updated_at = NOW() WHERE id = ?";
+                $update_stmt = mysqli_prepare($conn, $update_sql);
+                mysqli_stmt_bind_param($update_stmt, 'si', $relative_path, $user_id);
+                
+                if (mysqli_stmt_execute($update_stmt)) {
+                    $user['profile_picture'] = $relative_path;
+                    $_SESSION['profile_picture'] = $relative_path;
+                    $message = 'Profile picture updated!';
+                    $message_type = 'success';
+                } else {
+                    $message = 'Error updating picture.';
+                    $message_type = 'danger';
+                }
+                mysqli_stmt_close($update_stmt);
+            } else {
+                $message = 'Error uploading file.';
+                $message_type = 'danger';
+            }
+        }
+    }
+}
+
+include '../includes/header.php';
+?>
+
+<style>
+/* Compact Styles */
+body {
+    background-color: #f8f9fa;
+    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
+    font-size: 14px;
+}
+
+.container {
+    max-width: 1000px;
+    margin: 0 auto;
+    padding: 15px;
+}
+
+.profile-header {
+    background:  #166b0e;
+    color: white;
+    padding: 15px;
+    border-radius: 8px 8px 0 0;
+}
+
+.profile-card {
+    background: white;
+    border-radius: 8px;
+    box-shadow: 0 2px 10px rgba(0,0,0,0.05);
+    margin-bottom: 15px;
+    overflow: hidden;
+}
+
+.profile-picture-container {
+    width: 100px;
+    height: 100px;
+    margin: 10px auto 10px;
+    position: relative;
+}
+
+.profile-picture {
+    width: 100%;
+    height: 100%;
+    border-radius: 50%;
+    object-fit: cover;
+    border: 3px solid white;
+    box-shadow: 0 3px 10px rgba(0,0,0,0.1);
+}
+
+.profile-picture-upload {
+    position: absolute;
+    bottom: 5px;
+    right: 5px;
+    background:  #166b0e;
+    color: white;
+    border-radius: 50%;
+    width: 30px;
+    height: 30px;
+    display: flex;
+    align-items: center;
+    justify-content: center;
+    cursor: pointer;
+    font-size: 12px;
+}
+
+.stats-card {
+    background: white;
+    border-radius: 8px;
+    padding: 15px;
+    box-shadow: 0 2px 8px rgba(0,0,0,0.05);
+    margin-bottom: 15px;
+}
+
+.info-item {
+    padding: 8px 0;
+    border-bottom: 1px solid #f0f0f0;
+    font-size: 13px;
+}
+
+.info-label {
+    font-weight: 600;
+    color: #6c757d;
+    font-size: 12px;
+    margin-bottom: 3px;
+}
+
+.info-value {
+    font-size: 13px;
+}
+
+.badge-role {
+    background:#cfee43;
+    color: rgb(0, 0, 0);
+    padding: 4px 10px;
+    border-radius: 12px;
+    font-size: 12px;
+    font-weight: 500;
+}
+
+.form-control, .form-select {
+    font-size: 13px;
+    padding: 6px 10px;
+    height: 35px;
+}
+
+.btn {
+    font-size: 13px;
+    padding: 6px 12px;
+}
+
+.btn-sm {
+    padding: 4px 10px;
+    font-size: 12px;
+}
+
+.table {
+    font-size: 13px;
+}
+
+.table th {
+    font-size: 12px;
+    padding: 10px;
+    background-color: #f8f9fa;
+}
+
+.table td {
+    padding: 8px;
+}
+
+.badge {
+    font-size: 11px;
+    padding: 3px 8px;
+}
+
+.alert {
+    padding: 8px 12px;
+    font-size: 13px;
+}
+
+.modal-content {
+    font-size: 13px;
+}
+
+.modal-header {
+    padding: 12px 15px;
+}
+
+.modal-body {
+    padding: 15px;
+}
+
+.modal-footer {
+    padding: 10px 15px;
+}
+
+@media (max-width: 768px) {
+    .container {
+        padding: 10px;
+    }
+    
+    .profile-header {
+        padding: 12px;
+    }
+    
+    .profile-picture-container {
+        width: 80px;
+        height: 80px;
+        margin: -40px auto 8px;
+    }
+    
+    .profile-picture-upload {
+        width: 25px;
+        height: 25px;
+        font-size: 10px;
+    }
+}
+</style>
+
+<div class="container">
+    <!-- Profile Header -->
+    <div class="profile-header mb-3">
+        <div class="d-flex justify-content-between align-items-center">
+            <div>
+                <h1 class="h4 mb-0">My Profile</h1>
+                <small class="opacity-75">Manage account information</small>
+            </div>
+            <span class="badge-role">
+                <i class="bi bi-shield-check me-1"></i> <?php echo htmlspecialchars(ucfirst($user['role'])); ?>
+            </span>
+        </div>
+    </div>
+
+    <!-- Message Alert -->
+    <?php if ($message): ?>
+    <div class="alert alert-<?php echo $message_type; ?> alert-dismissible fade show mb-3 py-2" role="alert" style="font-size: 13px;">
+        <i class="bi bi-<?php echo $message_type == 'success' ? 'check-circle' : 'exclamation-triangle'; ?> me-1"></i>
+        <?php echo $message; ?>
+        <button type="button" class="btn-close" data-bs-dismiss="alert" aria-label="Close" style="font-size: 10px;"></button>
+    </div>
+    <?php endif; ?>
+
+    <!-- Profile Picture -->
+    <div class="profile-card">
+        <div class="text-center p-3">
+            <div class="profile-picture-container">
+                <?php if (!empty($user['profile_picture'])): ?>
+                    <img src="../<?php echo htmlspecialchars($user['profile_picture']); ?>" 
+                         alt="Profile" 
+                         class="profile-picture">
+                <?php else: ?>
+                    <div class="profile-picture d-flex align-items-center justify-content-center bg-primary text-white">
+                        <i class="bi bi-person" style="font-size: 40px;"></i>
+                    </div>
+                <?php endif; ?>
+                
+                <div class="profile-picture-upload" data-bs-toggle="modal" data-bs-target="#uploadModal">
+                    <i class="bi bi-camera"></i>
+                </div>
+            </div>
+            
+            <h4 class="mb-1"><?php echo htmlspecialchars($user['full_name']); ?></h4>
+            <p class="text-muted mb-2"><?php echo htmlspecialchars($user['email']); ?></p>
+            
+            <div>
+                <span class="badge bg-info me-1">
+                    <i class="bi bi-person-badge"></i> ID: <?php echo $user_id; ?>
+                </span>
+                <span class="badge bg-secondary">
+                    <i class="bi bi-calendar"></i> <?php echo date('M Y', strtotime($user['created_at'])); ?>
+                </span>
+            </div>
+        </div>
+    </div>
+
+    <div class="row g-3">
+        <!-- Personal Information -->
+        <div class="col-lg-8">
+            <div class="profile-card">
+                <div class="card-header bg-white border-bottom py-2">
+                    <h6 class="mb-0"><i class="bi bi-person-lines-fill me-1"></i> Personal Information</h6>
+                </div>
+                <div class="card-body p-3">
+                    <form method="POST" action="" id="profileForm">
+                        <div class="row g-2">
+                            <div class="col-md-6 mb-2">
+                                <label class="form-label">Full Name *</label>
+                                <input type="text" class="form-control" name="full_name" 
+                                       value="<?php echo htmlspecialchars($user['full_name']); ?>" required>
+                            </div>
+                            <div class="col-md-6 mb-2">
+                                <label class="form-label">Email *</label>
+                                <input type="email" class="form-control" name="email" 
+                                       value="<?php echo htmlspecialchars($user['email']); ?>" required>
+                            </div>
+                            
+                            <div class="col-md-6 mb-2">
+                                <label class="form-label">Contact</label>
+                                <input type="tel" class="form-control" name="contact_number" 
+                                       value="<?php echo htmlspecialchars($user['contact_number'] ?? ''); ?>">
+                            </div>
+                            <div class="col-md-6 mb-2">
+                                <label class="form-label">Address</label>
+                                <input type="text" class="form-control" name="address" 
+                                       value="<?php echo htmlspecialchars($user['address'] ?? ''); ?>">
+                            </div>
+                            
+                            <div class="col-md-6 mb-2">
+                                <label class="form-label">Username</label>
+                                <input type="text" class="form-control" value="<?php echo htmlspecialchars($user['username']); ?>" readonly>
+                            </div>
+                            <div class="col-md-6 mb-2">
+                                <label class="form-label">Created</label>
+                                <input type="text" class="form-control" 
+                                       value="<?php echo date('m/d/Y', strtotime($user['created_at'])); ?>" readonly>
+                            </div>
+                            
+                            <div class="col-md-6 mb-2">
+                                <label class="form-label">Role</label>
+                                <input type="text" class="form-control" 
+                                       value="<?php echo htmlspecialchars(ucfirst($user['role'])); ?>" readonly>
+                            </div>
+                            <div class="col-md-6 mb-2">
+                                <label class="form-label">Status</label>
+                                <input type="text" class="form-control" 
+                                       value="<?php echo $user['status'] == 1 ? 'Active' : 'Inactive'; ?>" readonly>
+                            </div>
+                        </div>
+                        
+                        <div class="d-flex justify-content-between align-items-center mt-3 pt-2 border-top">
+                            <small class="text-muted">
+                                Updated: <?php echo date('m/d/Y h:i A', strtotime($user['updated_at'])); ?>
+                            </small>
+                            <button type="submit" class="btn btn-primary btn-sm" name="update_profile">
+                                <i class="bi bi-save me-1"></i> Save
+                            </button>
+                        </div>
+                    </form>
+                </div>
+            </div>
+
+            <!-- Change Password -->
+            <div class="profile-card mt-3">
+                <div class="card-header bg-white border-bottom py-2">
+                    <h6 class="mb-0"><i class="bi bi-key-fill me-1"></i> Change Password</h6>
+                </div>
+                <div class="card-body p-3">
+                    <form method="POST" action="" id="passwordForm">
+                        <div class="row g-2">
+                            <div class="col-md-6 mb-2">
+                                <label class="form-label">Current Password *</label>
+                                <div class="input-group input-group-sm">
+                                    <input type="password" class="form-control" name="current_password" id="current_password" required>
+                                    <button class="btn btn-outline-secondary" type="button" onclick="togglePassword('current_password')">
+                                        <i class="bi bi-eye"></i>
+                                    </button>
+                                </div>
+                            </div>
+                            <div class="col-md-6 mb-2">
+                                <label class="form-label">New Password *</label>
+                                <div class="input-group input-group-sm">
+                                    <input type="password" class="form-control" name="new_password" id="new_password" required>
+                                    <button class="btn btn-outline-secondary" type="button" onclick="togglePassword('new_password')">
+                                        <i class="bi bi-eye"></i>
+                                    </button>
+                                </div>
+                            </div>
+                            
+                            <div class="col-md-6 mb-2">
+                                <label class="form-label">Confirm Password *</label>
+                                <div class="input-group input-group-sm">
+                                    <input type="password" class="form-control" name="confirm_password" id="confirm_password" required>
+                                    <button class="btn btn-outline-secondary" type="button" onclick="togglePassword('confirm_password')">
+                                        <i class="bi bi-eye"></i>
+                                    </button>
+                                </div>
+                            </div>
+                        </div>
+                        
+                        <div class="alert alert-info py-2 mt-2 mb-2" style="font-size: 12px;">
+                            <i class="bi bi-info-circle me-1"></i>
+                            Password must be at least 6 characters
+                        </div>
+                        
+                        <div class="d-flex justify-content-end">
+                            <button type="submit" class="btn btn-warning btn-sm" name="change_password">
+                                <i class="bi bi-key me-1"></i> Change Password
+                            </button>
+                        </div>
+                    </form>
+                </div>
+            </div>
+        </div>
+
+        <!-- Sidebar -->
+        <div class="col-lg-4">
+            <!-- Account Stats -->
+            <div class="stats-card">
+                <div class="d-flex align-items-center mb-2">
+                    <div class="bg-primary text-white rounded p-2 me-2">
+                        <i class="bi bi-speedometer2"></i>
+                    </div>
+                    <h6 class="mb-0">Account Overview</h6>
+                </div>
+                
+                <div class="info-item">
+                    <div class="info-label">User ID</div>
+                    <div class="info-value"><?php echo $user_id; ?></div>
+                </div>
+                
+                <div class="info-item">
+                    <div class="info-label">Role</div>
+                    <div class="info-value"><?php echo htmlspecialchars(ucfirst($user['role'])); ?></div>
+                </div>
+                
+                <div class="info-item">
+                    <div class="info-label">Status</div>
+                    <div class="info-value">
+                        <?php if ($user['status'] == 1): ?>
+                            <span class="badge bg-success">
+                                <i class="bi bi-check-circle me-1"></i> Active
+                            </span>
+                        <?php else: ?>
+                            <span class="badge bg-danger">
+                                <i class="bi bi-x-circle me-1"></i> Inactive
+                            </span>
+                        <?php endif; ?>
+                    </div>
+                </div>
+                
+                <div class="info-item">
+                    <div class="info-label">Last Login</div>
+                    <div class="info-value">
+                        <?php 
+                        $last_login = !empty($user['last_login']) ? date('m/d/Y h:i A', strtotime($user['last_login'])) : 'Never';
+                        echo $last_login;
+                        ?>
+                    </div>
+                </div>
+            </div>
+
+            <!-- Quick Actions -->
+            <div class="stats-card mt-3">
+                <div class="d-flex align-items-center mb-2">
+                    <div class="bg-info text-white rounded p-2 me-2">
+                        <i class="bi bi-lightning"></i>
+                    </div>
+                    <h6 class="mb-0">Quick Actions</h6>
+                </div>
+                
+                <div class="d-grid gap-2">
+                    <a href="dashboard.php" class="btn btn-outline-primary btn-sm">
+                        <i class="bi bi-speedometer2 me-1"></i> Dashboard
+                    </a>
+                    <button class="btn btn-outline-success btn-sm" onclick="window.print()">
+                        <i class="bi bi-printer me-1"></i> Print
+                    </button>
+                    <a href="../auth/logout.php" class="btn btn-outline-danger btn-sm">
+                        <i class="bi bi-box-arrow-right me-1"></i> Logout
+                    </a>
+                </div>
+            </div>
+
+            <!-- Security Tips -->
+            <div class="stats-card mt-3">
+                <div class="d-flex align-items-center mb-2">
+                    <div class="bg-warning text-white rounded p-2 me-2">
+                        <i class="bi bi-shield-check"></i>
+                    </div>
+                    <h6 class="mb-0">Security Tips</h6>
+                </div>
+                
+                <div style="font-size: 12px;">
+                    <div class="mb-1">
+                        <i class="bi bi-check-circle-fill text-success me-1"></i>
+                        Use strong password
+                    </div>
+                    <div class="mb-1">
+                        <i class="bi bi-check-circle-fill text-success me-1"></i>
+                        Update regularly
+                    </div>
+                    <div class="mb-1">
+                        <i class="bi bi-check-circle-fill text-success me-1"></i>
+                        Logout when done
+                    </div>
+                    <div>
+                        <i class="bi bi-check-circle-fill text-success me-1"></i>
+                        Keep info updated
+                    </div>
+                </div>
+            </div>
+        </div>
+    </div>
+</div>
+
+<!-- Upload Modal -->
+<div class="modal fade" id="uploadModal" tabindex="-1" aria-labelledby="uploadModalLabel" aria-hidden="true">
+    <div class="modal-dialog modal-sm">
+        <div class="modal-content">
+            <div class="modal-header py-2">
+                <h6 class="modal-title mb-0" id="uploadModalLabel">
+                    <i class="bi bi-camera me-1"></i> Upload Photo
+                </h6>
+                <button type="button" class="btn-close" data-bs-dismiss="modal" aria-label="Close"></button>
+            </div>
+            <form method="POST" action="" enctype="multipart/form-data">
+                <div class="modal-body py-2">
+                    <div class="alert alert-info py-1 mb-2" style="font-size: 11px;">
+                        <i class="bi bi-info-circle me-1"></i>
+                        JPG, PNG, GIF (Max 2MB)
+                    </div>
+                    
+                    <div class="mb-2">
+                        <label for="profile_picture" class="form-label">Select Image</label>
+                        <input type="file" class="form-control form-control-sm" id="profile_picture" name="profile_picture" accept="image/*">
+                    </div>
+                    
+                    <div class="preview-container text-center mt-2" style="display: none;">
+                        <img id="imagePreview" class="img-fluid rounded" style="max-height: 150px;">
+                    </div>
+                </div>
+                <div class="modal-footer py-2">
+                    <button type="button" class="btn btn-secondary btn-sm" data-bs-dismiss="modal">Cancel</button>
+                    <button type="submit" class="btn btn-primary btn-sm">Upload</button>
+                </div>
+            </form>
+        </div>
+    </div>
+</div>
+
+<?php 
+$page_scripts = '
+<script>
+// Toggle password visibility
+function togglePassword(fieldId) {
+    const field = document.getElementById(fieldId);
+    const type = field.getAttribute("type") === "password" ? "text" : "password";
+    field.setAttribute("type", type);
+}
+
+// Image preview
+document.getElementById("profile_picture").addEventListener("change", function(e) {
+    const preview = document.getElementById("imagePreview");
+    const previewContainer = document.querySelector(".preview-container");
+    
+    if (this.files && this.files[0]) {
+        const reader = new FileReader();
+        reader.onload = function(e) {
+            preview.src = e.target.result;
+            previewContainer.style.display = "block";
+        }
+        reader.readAsDataURL(this.files[0]);
+    } else {
+        previewContainer.style.display = "none";
+    }
+});
+
+// Form validation
+document.getElementById("profileForm").addEventListener("submit", function(e) {
+    const email = this.querySelector("input[name=\'email\']").value;
+    if (!/^[^\\s@]+@[^\\s@]+\\.[^\\s@]+$/.test(email)) {
+        e.preventDefault();
+        alert("Invalid email address.");
+        return false;
+    }
+    return true;
+});
+
+document.getElementById("passwordForm").addEventListener("submit", function(e) {
+    const newPassword = this.querySelector("input[name=\'new_password\']").value;
+    const confirmPassword = this.querySelector("input[name=\'confirm_password\']").value;
+    
+    if (newPassword.length < 6) {
+        e.preventDefault();
+        alert("Password must be at least 6 characters.");
+        return false;
+    }
+    
+    if (newPassword !== confirmPassword) {
+        e.preventDefault();
+        alert("Passwords do not match.");
+        return false;
+    }
+    
+    return true;
+});
+</script>
+';
+
+include '../includes/footer.php';
+?>
\ No newline at end of file
diff --git a/src-backup/admin/reports.php b/src-backup/admin/reports.php
new file mode 100644
index 0000000..7dcecca
--- /dev/null
+++ b/src-backup/admin/reports.php
@@ -0,0 +1,962 @@
+<?php
+require_once '../includes/config.php';
+
+// Check if user is logged in and is admin
+if (!isset($_SESSION['logged_in']) || $_SESSION['logged_in'] !== true || $_SESSION['role'] !== 'admin') {
+    header('Location: ../auth/login.php');
+    exit();
+}
+
+$title = "Attendance Reports";
+
+// Get filter parameters
+$start_date = $_GET['start_date'] ?? date('Y-m-01'); // First day of current month
+$end_date = $_GET['end_date'] ?? date('Y-m-t'); // Last day of current month
+$activity_id = $_GET['activity_id'] ?? '';
+$course_id = $_GET['course_id'] ?? '';
+$department_id = $_GET['department_id'] ?? '';
+$status = $_GET['status'] ?? '';
+
+// Build SQL query with filters
+$where_conditions = ["DATE(a.created_at) BETWEEN '$start_date' AND '$end_date'"];
+$join_tables = "";
+
+if ($activity_id) {
+    $where_conditions[] = "a.activity_id = " . intval($activity_id);
+}
+
+if ($course_id) {
+    $join_tables .= " LEFT JOIN students s ON a.student_id = s.id";
+    $where_conditions[] = "s.course_id = " . intval($course_id);
+}
+
+if ($department_id) {
+    if (strpos($join_tables, 'students s') === false) {
+        $join_tables .= " LEFT JOIN students s ON a.student_id = s.id";
+    }
+    $where_conditions[] = "s.department_id = " . intval($department_id);
+}
+
+if ($status && in_array($status, ['present', 'late', 'absent', 'excused'])) {
+    $where_conditions[] = "a.status = '$status'";
+}
+
+// Get attendance records - FIXED VERSION (walang created_by sa attendance table)
+$attendance_records = [];
+$where_clause = count($where_conditions) > 0 ? "WHERE " . implode(" AND ", $where_conditions) : "";
+
+$sql = "SELECT 
+            a.*,
+            s.student_id as student_number,
+            s.full_name as student_name,
+            s.year_level,
+            c.code as course_code,
+            c.name as course_name,
+            d.code as department_code,
+            d.name as department_name,
+            ac.name as activity_name,
+            ac.date as activity_date,
+            ac.time_in as activity_time_in,
+            ac.time_out as activity_time_out,
+            ac.location as activity_location
+        FROM attendance a
+        LEFT JOIN students s ON a.student_id = s.id
+        LEFT JOIN courses c ON s.course_id = c.id
+        LEFT JOIN departments d ON s.department_id = d.id
+        LEFT JOIN activities ac ON a.activity_id = ac.id
+        $join_tables
+        $where_clause
+        ORDER BY a.created_at DESC";
+
+$result = query($conn, $sql);
+while ($row = mysqli_fetch_assoc($result)) {
+    $attendance_records[] = $row;
+}
+
+// Get statistics
+$stats = [
+    'total' => 0,
+    'present' => 0,
+    'late' => 0,
+    'absent' => 0,
+    'excused' => 0
+];
+
+foreach ($attendance_records as $record) {
+    $stats['total']++;
+    switch($record['status']) {
+        case 'present': $stats['present']++; break;
+        case 'late': $stats['late']++; break;
+        case 'absent': $stats['absent']++; break;
+        case 'excused': $stats['excused']++; break;
+    }
+}
+
+// Get filter dropdown data
+$activities = [];
+$courses = [];
+$departments = [];
+
+// All activities
+$result = query($conn, "SELECT * FROM activities ORDER BY date DESC, name ASC");
+while ($row = mysqli_fetch_assoc($result)) {
+    $activities[] = $row;
+}
+
+// All courses
+$result = query($conn, "SELECT * FROM courses WHERE status = 1 ORDER BY code");
+while ($row = mysqli_fetch_assoc($result)) {
+    $courses[] = $row;
+}
+
+// All departments
+$result = query($conn, "SELECT * FROM departments WHERE status = 1 ORDER BY code");
+while ($row = mysqli_fetch_assoc($result)) {
+    $departments[] = $row;
+}
+
+// Get daily attendance trend
+$daily_trend = [];
+$sql = "SELECT 
+            DATE(created_at) as date,
+            COUNT(*) as total,
+            SUM(CASE WHEN status = 'present' THEN 1 ELSE 0 END) as present,
+            SUM(CASE WHEN status = 'late' THEN 1 ELSE 0 END) as late,
+            SUM(CASE WHEN status = 'absent' THEN 1 ELSE 0 END) as absent,
+            SUM(CASE WHEN status = 'excused' THEN 1 ELSE 0 END) as excused
+        FROM attendance 
+        WHERE DATE(created_at) BETWEEN '$start_date' AND '$end_date'
+        GROUP BY DATE(created_at)
+        ORDER BY date ASC";
+
+$result = query($conn, $sql);
+while ($row = mysqli_fetch_assoc($result)) {
+    $daily_trend[] = $row;
+}
+
+// Get activity-wise statistics
+$activity_stats = [];
+$sql = "SELECT 
+            ac.name as activity_name,
+            COUNT(a.id) as total_attendance,
+            SUM(CASE WHEN a.status = 'present' THEN 1 ELSE 0 END) as present,
+            SUM(CASE WHEN a.status = 'late' THEN 1 ELSE 0 END) as late,
+            ROUND((SUM(CASE WHEN a.status IN ('present', 'late') THEN 1 ELSE 0 END) * 100.0 / COUNT(a.id)), 1) as attendance_rate
+        FROM activities ac
+        LEFT JOIN attendance a ON ac.id = a.activity_id
+        WHERE ac.date BETWEEN '$start_date' AND '$end_date'
+        GROUP BY ac.id
+        ORDER BY ac.date DESC, ac.name ASC";
+
+$result = query($conn, $sql);
+while ($row = mysqli_fetch_assoc($result)) {
+    $activity_stats[] = $row;
+}
+
+// Get department-wise statistics
+$department_stats = [];
+$sql = "SELECT 
+            d.code as department_code,
+            d.name as department_name,
+            COUNT(a.id) as total_attendance,
+            SUM(CASE WHEN a.status = 'present' THEN 1 ELSE 0 END) as present,
+            SUM(CASE WHEN a.status = 'late' THEN 1 ELSE 0 END) as late,
+            ROUND((SUM(CASE WHEN a.status IN ('present', 'late') THEN 1 ELSE 0 END) * 100.0 / COUNT(a.id)), 1) as attendance_rate
+        FROM departments d
+        LEFT JOIN students s ON d.id = s.department_id
+        LEFT JOIN attendance a ON s.id = a.student_id
+        WHERE DATE(a.created_at) BETWEEN '$start_date' AND '$end_date'
+        GROUP BY d.id
+        HAVING total_attendance > 0
+        ORDER BY attendance_rate DESC";
+
+$result = query($conn, $sql);
+while ($row = mysqli_fetch_assoc($result)) {
+    $department_stats[] = $row;
+}
+
+include '../includes/header.php';
+?>
+
+<!-- Page Header -->
+<div class="d-flex justify-content-between align-items-center mb-4">
+    <div>
+        <h1 class="h3 mb-2">Attendance Reports</h1>
+        <p class="text-muted">View and analyze attendance data with detailed reports.</p>
+    </div>
+    <div>
+        <button class="btn btn-primary" onclick="printReport()">
+            <i class="bi bi-printer me-2"></i> Print Report
+        </button>
+        <button class="btn btn-success" onclick="exportToExcel()">
+            <i class="bi bi-download me-2"></i> Export Excel
+        </button>
+    </div>
+</div>
+
+<!-- Filter Card -->
+<div class="card shadow mb-4">
+    <div class="card-header">
+        <h6 class="m-0 font-weight-bold">
+            <i class="bi bi-funnel me-2"></i> Filter Reports
+        </h6>
+    </div>
+    <div class="card-body">
+        <form method="GET" action="">
+            <div class="row">
+                <div class="col-md-3 mb-3">
+                    <label class="form-label">Start Date</label>
+                    <input type="date" class="form-control" name="start_date" 
+                           value="<?php echo $start_date; ?>" required>
+                </div>
+                <div class="col-md-3 mb-3">
+                    <label class="form-label">End Date</label>
+                    <input type="date" class="form-control" name="end_date" 
+                           value="<?php echo $end_date; ?>" required>
+                </div>
+                <div class="col-md-2 mb-3">
+                    <label class="form-label">Activity</label>
+                    <select class="form-select" name="activity_id">
+                        <option value="">All Activities</option>
+                        <?php foreach ($activities as $activity): ?>
+                            <option value="<?php echo $activity['id']; ?>" 
+                                <?php echo $activity_id == $activity['id'] ? 'selected' : ''; ?>>
+                                <?php echo $activity['name']; ?>
+                            </option>
+                        <?php endforeach; ?>
+                    </select>
+                </div>
+                <div class="col-md-2 mb-3">
+                    <label class="form-label">Course</label>
+                    <select class="form-select" name="course_id">
+                        <option value="">All Courses</option>
+                        <?php foreach ($courses as $course): ?>
+                            <option value="<?php echo $course['id']; ?>" 
+                                <?php echo $course_id == $course['id'] ? 'selected' : ''; ?>>
+                                <?php echo $course['code']; ?>
+                            </option>
+                        <?php endforeach; ?>
+                    </select>
+                </div>
+                <div class="col-md-2 mb-3">
+                    <label class="form-label">Status</label>
+                    <select class="form-select" name="status">
+                        <option value="">All Status</option>
+                        <option value="present" <?php echo $status == 'present' ? 'selected' : ''; ?>>Present</option>
+                        <option value="late" <?php echo $status == 'late' ? 'selected' : ''; ?>>Late</option>
+                        <option value="absent" <?php echo $status == 'absent' ? 'selected' : ''; ?>>Absent</option>
+                        <option value="excused" <?php echo $status == 'excused' ? 'selected' : ''; ?>>Excused</option>
+                    </select>
+                </div>
+            </div>
+            <div class="row">
+                <div class="col-md-3 mb-3">
+                    <label class="form-label">Department</label>
+                    <select class="form-select" name="department_id">
+                        <option value="">All Departments</option>
+                        <?php foreach ($departments as $department): ?>
+                            <option value="<?php echo $department['id']; ?>" 
+                                <?php echo $department_id == $department['id'] ? 'selected' : ''; ?>>
+                                <?php echo $department['name']; ?>
+                            </option>
+                        <?php endforeach; ?>
+                    </select>
+                </div>
+                <div class="col-md-9 d-flex align-items-end justify-content-end">
+                    <button type="submit" class="btn btn-primary me-2">
+                        <i class="bi bi-filter me-1"></i> Apply Filters
+                    </button>
+                    <a href="reports.php" class="btn btn-secondary">
+                        <i class="bi bi-x-circle me-1"></i> Clear Filters
+                    </a>
+                </div>
+            </div>
+        </form>
+    </div>
+</div>
+
+<!-- Statistics Cards -->
+<div class="row mb-4">
+    <div class="col-xl-3 col-md-6 mb-4">
+        <div class="card stat-card border-left-primary">
+            <div class="card-body">
+                <div class="row align-items-center">
+                    <div class="col-8">
+                        <div class="text-uppercase text-primary mb-1">Total Records</div>
+                        <div class="h2 font-weight-bold"><?php echo $stats['total']; ?></div>
+                        <div class="text-muted">Attendance records</div>
+                    </div>
+                    <div class="col-4 text-end">
+                        <i class="bi bi-clipboard-data text-primary" style="font-size: 3rem; opacity: 0.7;"></i>
+                    </div>
+                </div>
+            </div>
+        </div>
+    </div>
+
+    <div class="col-xl-3 col-md-6 mb-4">
+        <div class="card stat-card border-left-success">
+            <div class="card-body">
+                <div class="row align-items-center">
+                    <div class="col-8">
+                        <div class="text-uppercase text-success mb-1">Present</div>
+                        <div class="h2 font-weight-bold"><?php echo $stats['present']; ?></div>
+                        <div class="text-muted">On-time attendance</div>
+                    </div>
+                    <div class="col-4 text-end">
+                        <i class="bi bi-check-circle-fill text-success" style="font-size: 3rem; opacity: 0.7;"></i>
+                    </div>
+                </div>
+            </div>
+        </div>
+    </div>
+
+    <div class="col-xl-3 col-md-6 mb-4">
+        <div class="card stat-card border-left-warning">
+            <div class="card-body">
+                <div class="row align-items-center">
+                    <div class="col-8">
+                        <div class="text-uppercase text-warning mb-1">Late</div>
+                        <div class="h2 font-weight-bold"><?php echo $stats['late']; ?></div>
+                        <div class="text-muted">Late arrivals</div>
+                    </div>
+                    <div class="col-4 text-end">
+                        <i class="bi bi-clock-history text-warning" style="font-size: 3rem; opacity: 0.7;"></i>
+                    </div>
+                </div>
+            </div>
+        </div>
+    </div>
+
+    <div class="col-xl-3 col-md-6 mb-4">
+        <div class="card stat-card border-left-danger">
+            <div class="card-body">
+                <div class="row align-items-center">
+                    <div class="col-8">
+                        <div class="text-uppercase text-danger mb-1">Absent</div>
+                        <div class="h2 font-weight-bold"><?php echo $stats['absent']; ?></div>
+                        <div class="text-muted">No attendance</div>
+                    </div>
+                    <div class="col-4 text-end">
+                        <i class="bi bi-x-circle-fill text-danger" style="font-size: 3rem; opacity: 0.7;"></i>
+                    </div>
+                </div>
+            </div>
+        </div>
+    </div>
+</div>
+
+<!-- Charts Section -->
+<div class="row mb-4">
+    <!-- Attendance Summary Chart -->
+    <div class="col-lg-6">
+        <div class="card shadow h-100">
+            <div class="card-header">
+                <h6 class="m-0 font-weight-bold">
+                    <i class="bi bi-pie-chart me-2"></i> Attendance Summary
+                </h6>
+            </div>
+            <div class="card-body">
+                <div class="chart-container" style="position: relative; height: 300px;">
+                    <canvas id="attendanceChart"></canvas>
+                </div>
+                <div class="row mt-3 text-center">
+                    <div class="col-3">
+                        <div class="text-success">
+                            <i class="bi bi-check-circle"></i>
+                            <div class="h5 mb-0"><?php echo $stats['present']; ?></div>
+                            <small>Present</small>
+                        </div>
+                    </div>
+                    <div class="col-3">
+                        <div class="text-warning">
+                            <i class="bi bi-clock-history"></i>
+                            <div class="h5 mb-0"><?php echo $stats['late']; ?></div>
+                            <small>Late</small>
+                        </div>
+                    </div>
+                    <div class="col-3">
+                        <div class="text-danger">
+                            <i class="bi bi-x-circle"></i>
+                            <div class="h5 mb-0"><?php echo $stats['absent']; ?></div>
+                            <small>Absent</small>
+                        </div>
+                    </div>
+                    <div class="col-3">
+                        <div class="text-info">
+                            <i class="bi bi-calendar-check"></i>
+                            <div class="h5 mb-0"><?php echo $stats['excused']; ?></div>
+                            <small>Excused</small>
+                        </div>
+                    </div>
+                </div>
+            </div>
+        </div>
+    </div>
+
+    <!-- Daily Trend Chart -->
+    <div class="col-lg-6">
+        <div class="card shadow h-100">
+            <div class="card-header">
+                <h6 class="m-0 font-weight-bold">
+                    <i class="bi bi-bar-chart me-2"></i> Daily Attendance Trend
+                </h6>
+            </div>
+            <div class="card-body">
+                <div class="chart-container" style="position: relative; height: 300px;">
+                    <canvas id="dailyTrendChart"></canvas>
+                </div>
+                <div class="text-center mt-3">
+                    <small class="text-muted">
+                        <?php echo date('F j, Y', strtotime($start_date)); ?> to 
+                        <?php echo date('F j, Y', strtotime($end_date)); ?>
+                    </small>
+                </div>
+            </div>
+        </div>
+    </div>
+</div>
+
+<!-- Activity Statistics Table -->
+<div class="card shadow mb-4">
+    <div class="card-header d-flex justify-content-between align-items-center">
+        <h6 class="m-0 font-weight-bold">
+            <i class="bi bi-calendar-event me-2"></i> Activity-wise Statistics
+        </h6>
+        <button class="btn btn-sm btn-outline-primary" onclick="toggleActivityStats()">
+            <i class="bi bi-chevron-down"></i>
+        </button>
+    </div>
+    <div class="card-body" id="activityStatsBody">
+        <div class="table-responsive">
+            <table class="table table-hover mb-0" id="activityStatsTable">
+                <thead class="table-light">
+                    <tr>
+                        <th>Activity</th>
+                        <th>Total</th>
+                        <th>Present</th>
+                        <th>Late</th>
+                        <th>Attendance Rate</th>
+                        <th>Actions</th>
+                    </tr>
+                </thead>
+                <tbody>
+                    <?php if (empty($activity_stats)): ?>
+                        <tr>
+                            <td colspan="6" class="text-center py-4">
+                                <i class="bi bi-calendar-x text-muted" style="font-size: 3rem;"></i>
+                                <p class="mt-2">No activity data for selected period</p>
+                            </td>
+                        </tr>
+                    <?php else: ?>
+                        <?php foreach ($activity_stats as $stat): ?>
+                        <tr>
+                            <td>
+                                <strong><?php echo $stat['activity_name']; ?></strong>
+                            </td>
+                            <td>
+                                <span class="badge bg-info"><?php echo $stat['total_attendance']; ?></span>
+                            </td>
+                            <td>
+                                <span class="badge bg-success"><?php echo $stat['present']; ?></span>
+                            </td>
+                            <td>
+                                <span class="badge bg-warning"><?php echo $stat['late']; ?></span>
+                            </td>
+                            <td>
+                                <div class="d-flex align-items-center">
+                                    <div class="progress flex-grow-1 me-2" style="height: 8px;">
+                                        <div class="progress-bar progress-bar-striped" 
+                                             role="progressbar" 
+                                             style="width: <?php echo $stat['attendance_rate']; ?>%">
+                                        </div>
+                                    </div>
+                                    <span><?php echo $stat['attendance_rate']; ?>%</span>
+                                </div>
+                            </td>
+                            <td>
+                                <?php
+                                $activity_id_for_link = '';
+                                foreach ($activities as $activity) {
+                                    if ($activity['name'] == $stat['activity_name']) {
+                                        $activity_id_for_link = $activity['id'];
+                                        break;
+                                    }
+                                }
+                                if ($activity_id_for_link): ?>
+                                    <a href="reports.php?activity_id=<?php echo $activity_id_for_link; ?>&start_date=<?php echo $start_date; ?>&end_date=<?php echo $end_date; ?>" 
+                                       class="btn btn-sm btn-info">
+                                        <i class="bi bi-eye"></i> View
+                                    </a>
+                                <?php endif; ?>
+                            </td>
+                        </tr>
+                        <?php endforeach; ?>
+                    <?php endif; ?>
+                </tbody>
+            </table>
+        </div>
+    </div>
+</div>
+
+<!-- Department Statistics Table -->
+<div class="card shadow mb-4">
+    <div class="card-header d-flex justify-content-between align-items-center">
+        <h6 class="m-0 font-weight-bold">
+            <i class="bi bi-building me-2"></i> Department Performance
+        </h6>
+        <button class="btn btn-sm btn-outline-primary" onclick="toggleDepartmentStats()">
+            <i class="bi bi-chevron-down"></i>
+        </button>
+    </div>
+    <div class="card-body" id="departmentStatsBody">
+        <div class="table-responsive">
+            <table class="table table-hover mb-0" id="departmentStatsTable">
+                <thead class="table-light">
+                    <tr>
+                        <th>Department</th>
+                        <th>Total</th>
+                        <th>Present</th>
+                        <th>Late</th>
+                        <th>Attendance Rate</th>
+                        <th>Performance</th>
+                    </tr>
+                </thead>
+                <tbody>
+                    <?php if (empty($department_stats)): ?>
+                        <tr>
+                            <td colspan="6" class="text-center py-4">
+                                <i class="bi bi-building text-muted" style="font-size: 3rem;"></i>
+                                <p class="mt-2">No department data for selected period</p>
+                            </td>
+                        </tr>
+                    <?php else: ?>
+                        <?php foreach ($department_stats as $stat): ?>
+                        <tr>
+                            <td>
+                                <strong><?php echo $stat['department_name']; ?></strong><br>
+                                <small class="text-muted"><?php echo $stat['department_code']; ?></small>
+                            </td>
+                            <td>
+                                <span class="badge bg-info"><?php echo $stat['total_attendance']; ?></span>
+                            </td>
+                            <td>
+                                <span class="badge bg-success"><?php echo $stat['present']; ?></span>
+                            </td>
+                            <td>
+                                <span class="badge bg-warning"><?php echo $stat['late']; ?></span>
+                            </td>
+                            <td>
+                                <div class="d-flex align-items-center">
+                                    <div class="progress flex-grow-1 me-2" style="height: 8px;">
+                                        <div class="progress-bar progress-bar-striped" 
+                                             role="progressbar" 
+                                             style="width: <?php echo $stat['attendance_rate']; ?>%">
+                                        </div>
+                                    </div>
+                                    <span><?php echo $stat['attendance_rate']; ?>%</span>
+                                </div>
+                            </td>
+                            <td>
+                                <?php 
+                                $rate = floatval($stat['attendance_rate']);
+                                if ($rate >= 90) {
+                                    echo '<span class="badge bg-success">Excellent</span>';
+                                } elseif ($rate >= 80) {
+                                    echo '<span class="badge bg-info">Good</span>';
+                                } elseif ($rate >= 70) {
+                                    echo '<span class="badge bg-warning">Fair</span>';
+                                } else {
+                                    echo '<span class="badge bg-danger">Poor</span>';
+                                }
+                                ?>
+                            </td>
+                        </tr>
+                        <?php endforeach; ?>
+                    <?php endif; ?>
+                </tbody>
+            </table>
+        </div>
+    </div>
+</div>
+
+<!-- Detailed Attendance Records -->
+<div class="card shadow">
+    <div class="card-header d-flex justify-content-between align-items-center">
+        <h6 class="m-0 font-weight-bold">
+            <i class="bi bi-list-ul me-2"></i> Detailed Attendance Records
+            <span class="badge bg-primary ms-2"><?php echo count($attendance_records); ?></span>
+        </h6>
+        <div>
+            <input type="text" id="searchRecords" class="form-control form-control-sm me-2" 
+                   placeholder="Search records..." style="width: 200px;">
+        </div>
+    </div>
+    <div class="card-body p-0">
+        <div class="table-responsive">
+            <table class="table table-hover mb-0" id="attendanceRecordsTable">
+                <thead class="table-light">
+                    <tr>
+                        <th>Student</th>
+                        <th>Activity</th>
+                        <th>Date & Time</th>
+                        <th>Time In/Out</th>
+                        <th>Status</th>
+                        <th>Course</th>
+                        <th>Recorded By</th>
+                    </tr>
+                </thead>
+                <tbody>
+                    <?php if (empty($attendance_records)): ?>
+                        <tr>
+                            <td colspan="7" class="text-center py-4">
+                                <i class="bi bi-clipboard-x text-muted" style="font-size: 3rem;"></i>
+                                <p class="mt-2">No attendance records found for the selected filters</p>
+                            </td>
+                        </tr>
+                    <?php else: ?>
+                        <?php foreach ($attendance_records as $record): ?>
+                        <tr>
+                            <td>
+                                <div class="d-flex align-items-center">
+                                    <div class="avatar me-3">
+                                        <div class="bg-primary rounded-circle p-2 text-white">
+                                            <i class="bi bi-person"></i>
+                                        </div>
+                                    </div>
+                                    <div>
+                                        <strong><?php echo $record['student_name']; ?></strong><br>
+                                        <small class="text-muted"><?php echo $record['student_number']; ?></small>
+                                    </div>
+                                </div>
+                            </td>
+                            <td>
+                                <div class="fw-bold"><?php echo $record['activity_name']; ?></div>
+                                <small class="text-muted">
+                                    <i class="bi bi-geo-alt"></i> <?php echo $record['activity_location']; ?>
+                                </small>
+                            </td>
+                            <td>
+                                <div class="fw-bold"><?php echo date('M d, Y', strtotime($record['created_at'])); ?></div>
+                                <small class="text-muted"><?php echo date('h:i A', strtotime($record['created_at'])); ?></small>
+                            </td>
+                            <td>
+                                <div class="d-flex flex-column">
+                                    <?php if ($record['time_in']): ?>
+                                        <small>
+                                            <i class="bi bi-box-arrow-in-right text-success"></i>
+                                            <?php echo date('h:i A', strtotime($record['time_in'])); ?>
+                                        </small>
+                                    <?php endif; ?>
+                                    <?php if ($record['time_out']): ?>
+                                        <small>
+                                            <i class="bi bi-box-arrow-left text-danger"></i>
+                                            <?php echo date('h:i A', strtotime($record['time_out'])); ?>
+                                        </small>
+                                    <?php endif; ?>
+                                </div>
+                            </td>
+                            <td>
+                                <?php
+                                $status = $record['status'] ?? 'pending';
+                                $badge_class = 'secondary';
+                                $icon = 'clock';
+                                
+                                switch($status) {
+                                    case 'present': 
+                                        $badge_class = 'success'; 
+                                        $icon = 'check-circle';
+                                        break;
+                                    case 'late': 
+                                        $badge_class = 'warning'; 
+                                        $icon = 'clock-history';
+                                        break;
+                                    case 'absent': 
+                                        $badge_class = 'danger'; 
+                                        $icon = 'x-circle';
+                                        break;
+                                    case 'excused': 
+                                        $badge_class = 'info'; 
+                                        $icon = 'calendar-check';
+                                        break;
+                                    default: 
+                                        $badge_class = 'secondary';
+                                        $icon = 'clock';
+                                }
+                                ?>
+                                <span class="badge bg-<?php echo $badge_class; ?>">
+                                    <i class="bi bi-<?php echo $icon; ?> me-1"></i>
+                                    <?php echo ucfirst($status); ?>
+                                </span>
+                            </td>
+                            <td>
+                                <div class="fw-bold"><?php echo $record['course_code']; ?></div>
+                                <small class="text-muted">Year <?php echo $record['year_level']; ?></small>
+                            </td>
+                            <td>
+                                <small>QR System</small>
+                            </td>
+                        </tr>
+                        <?php endforeach; ?>
+                    <?php endif; ?>
+                </tbody>
+            </table>
+        </div>
+    </div>
+    <div class="card-footer">
+        <div class="row">
+            <div class="col-md-6">
+                <small class="text-muted">
+                    Showing <?php echo count($attendance_records); ?> record(s)
+                </small>
+            </div>
+            <div class="col-md-6 text-md-end">
+                <small class="text-muted">
+                    Generated: <?php echo date('F j, Y h:i A'); ?>
+                </small>
+            </div>
+        </div>
+    </div>
+</div>
+
+<!-- Print Modal -->
+<div class="modal fade" id="printModal" tabindex="-1">
+    <div class="modal-dialog modal-lg">
+        <div class="modal-content">
+            <div class="modal-header">
+                <h5 class="modal-title">Print Preview</h5>
+                <button type="button" class="btn-close" data-bs-dismiss="modal"></button>
+            </div>
+            <div class="modal-body" id="printContent">
+                <!-- Print content will be loaded here -->
+            </div>
+            <div class="modal-footer">
+                <button type="button" class="btn btn-secondary" data-bs-dismiss="modal">Close</button>
+                <button type="button" class="btn btn-primary" onclick="window.print()">
+                    <i class="bi bi-printer me-1"></i> Print
+                </button>
+            </div>
+        </div>
+    </div>
+</div>
+
+<?php 
+// Include Chart.js library
+$page_scripts = '
+<script src="https://cdn.jsdelivr.net/npm/chart.js"></script>
+<script>
+$(document).ready(function() {
+    // Initialize DataTables
+    $("#activityStatsTable").DataTable({
+        pageLength: 5,
+        lengthMenu: [[5, 10, 25, -1], [5, 10, 25, "All"]],
+        order: [[4, "desc"]],
+        responsive: true
+    });
+    
+    $("#departmentStatsTable").DataTable({
+        pageLength: 5,
+        lengthMenu: [[5, 10, 25, -1], [5, 10, 25, "All"]],
+        order: [[4, "desc"]],
+        responsive: true
+    });
+    
+    $("#attendanceRecordsTable").DataTable({
+        pageLength: 10,
+        lengthMenu: [[10, 25, 50, -1], [10, 25, 50, "All"]],
+        order: [[2, "desc"]],
+        responsive: true
+    });
+    
+    // Search functionality
+    $("#searchRecords").on("keyup", function() {
+        $("#attendanceRecordsTable").DataTable().search($(this).val()).draw();
+    });
+    
+    // Initialize charts
+    initializeCharts();
+});
+
+// Initialize Charts
+function initializeCharts() {
+    // Attendance Summary Chart (Pie Chart)
+    const ctx1 = document.getElementById("attendanceChart").getContext("2d");
+    new Chart(ctx1, {
+        type: "pie",
+        data: {
+            labels: ["Present", "Late", "Absent", "Excused"],
+            datasets: [{
+                data: [' . $stats['present'] . ', ' . $stats['late'] . ', ' . $stats['absent'] . ', ' . $stats['excused'] . '],
+                backgroundColor: [
+                    "#28a745",
+                    "#ffc107",
+                    "#dc3545",
+                    "#17a2b8"
+                ],
+                borderWidth: 1
+            }]
+        },
+        options: {
+            responsive: true,
+            maintainAspectRatio: false,
+            plugins: {
+                legend: {
+                    position: "bottom"
+                },
+                tooltip: {
+                    callbacks: {
+                        label: function(context) {
+                            let label = context.label || "";
+                            if (label) {
+                                label += ": ";
+                            }
+                            label += context.parsed + " (" + Math.round((context.parsed / ' . $stats['total'] . ') * 100) + "%)";
+                            return label;
+                        }
+                    }
+                }
+            }
+        }
+    });
+    
+    // Daily Trend Chart (Line Chart)
+    const ctx2 = document.getElementById("dailyTrendChart").getContext("2d");
+    const dates = ' . json_encode(array_column($daily_trend, "date")) . ';
+    const presentData = ' . json_encode(array_column($daily_trend, "present")) . ';
+    const lateData = ' . json_encode(array_column($daily_trend, "late")) . ';
+    const totalData = ' . json_encode(array_column($daily_trend, "total")) . ';
+    
+    new Chart(ctx2, {
+        type: "line",
+        data: {
+            labels: dates.map(date => new Date(date).toLocaleDateString("en-US", { month: "short", day: "numeric" })),
+            datasets: [
+                {
+                    label: "Total Attendance",
+                    data: totalData,
+                    borderColor: "#3498db",
+                    backgroundColor: "rgba(52, 152, 219, 0.1)",
+                    fill: true,
+                    tension: 0.4
+                },
+                {
+                    label: "Present",
+                    data: presentData,
+                    borderColor: "#28a745",
+                    backgroundColor: "rgba(40, 167, 69, 0.1)",
+                    fill: true,
+                    tension: 0.4
+                },
+                {
+                    label: "Late",
+                    data: lateData,
+                    borderColor: "#ffc107",
+                    backgroundColor: "rgba(255, 193, 7, 0.1)",
+                    fill: true,
+                    tension: 0.4
+                }
+            ]
+        },
+        options: {
+            responsive: true,
+            maintainAspectRatio: false,
+            plugins: {
+                legend: {
+                    position: "bottom"
+                }
+            },
+            scales: {
+                y: {
+                    beginAtZero: true,
+                    title: {
+                        display: true,
+                        text: "Number of Students"
+                    }
+                },
+                x: {
+                    title: {
+                        display: true,
+                        text: "Date"
+                    }
+                }
+            }
+        }
+    });
+}
+
+// Toggle sections
+function toggleActivityStats() {
+    $("#activityStatsBody").slideToggle();
+}
+
+function toggleDepartmentStats() {
+    $("#departmentStatsBody").slideToggle();
+}
+
+// Print report - Simple version
+function printReport() {
+    window.print();
+}
+
+// Export to Excel
+function exportToExcel() {
+    showLoader("Preparing Excel export...");
+    
+    const params = new URLSearchParams({
+        start_date: "' . $start_date . '",
+        end_date: "' . $end_date . '",
+        activity_id: "' . $activity_id . '",
+        course_id: "' . $course_id . '",
+        department_id: "' . $department_id . '",
+        status: "' . $status . '"
+    });
+    
+    fetch(`../api/export_reports.php?${params}`)
+        .then(response => response.json())
+        .then(data => {
+            hideLoader();
+            if (data.success) {
+                window.open(data.download_url, "_blank");
+                showNotification("Export completed successfully!", "success");
+            } else {
+                showNotification("Error: " + data.message, "danger");
+            }
+        })
+        .catch(error => {
+            hideLoader();
+            showNotification("Export failed: " + error, "danger");
+        });
+}
+
+// Quick filter buttons
+function filterToday() {
+    const today = new Date().toISOString().split("T")[0];
+    window.location.href = `reports.php?start_date=${today}&end_date=${today}`;
+}
+
+function filterThisWeek() {
+    const today = new Date();
+    const firstDay = new Date(today.setDate(today.getDate() - today.getDay()));
+    const lastDay = new Date(today.setDate(today.getDate() - today.getDay() + 6));
+    
+    const start = firstDay.toISOString().split("T")[0];
+    const end = lastDay.toISOString().split("T")[0];
+    
+    window.location.href = `reports.php?start_date=${start}&end_date=${end}`;
+}
+
+function filterThisMonth() {
+    const today = new Date();
+    const firstDay = new Date(today.getFullYear(), today.getMonth(), 1);
+    const lastDay = new Date(today.getFullYear(), today.getMonth() + 1, 0);
+    
+    const start = firstDay.toISOString().split("T")[0];
+    const end = lastDay.toISOString().split("T")[0];
+    
+    window.location.href = `reports.php?start_date=${start}&end_date=${end}`;
+}
+</script>
+';
+
+include '../includes/footer.php';
+?>
\ No newline at end of file
diff --git a/src-backup/admin/users.php b/src-backup/admin/users.php
new file mode 100644
index 0000000..7e9af83
--- /dev/null
+++ b/src-backup/admin/users.php
@@ -0,0 +1,767 @@
+<?php
+session_start();
+
+// Check if user is logged in and is admin
+if (!isset($_SESSION['user_id']) || $_SESSION['role'] !== 'admin') {
+    header("Location: ../auth/login.php");
+    exit();
+}
+
+// Use absolute path with error checking
+$db_path = __DIR__ . '/../includes/database.php';
+if (!file_exists($db_path)) {
+    die("Database configuration file not found at: $db_path");
+}
+
+require_once $db_path;
+
+// Check if $pdo is set
+if (!isset($pdo)) {
+    die("Database connection failed. \$pdo variable not set.");
+}
+
+$title = "User Management";
+
+// Try different paths for header.php
+$header_paths = [
+    'header.php',                           // Same directory
+    __DIR__ . '/header.php',                // Absolute path in admin
+    __DIR__ . '/../header.php',             // Parent directory (attendance_system)
+    __DIR__ . '/../includes/header.php',    // Includes directory
+    __DIR__ . '/../templates/header.php',   // Templates directory
+    'C:/xampp/htdocs/attendance_system/header.php',
+    'C:/xampp/htdocs/attendance_system/admin/header.php'
+];
+
+$header_found = false;
+foreach ($header_paths as $path) {
+    if (file_exists($path)) {
+        include $path;
+        $header_found = true;
+        break;
+    }
+}
+
+if (!$header_found) {
+    // If header not found, create basic HTML structure
+    ?>
+    <!DOCTYPE html>
+    <html lang="en">
+    <head>
+        <meta charset="UTF-8">
+        <meta name="viewport" content="width=device-width, initial-scale=1.0">
+        <title><?php echo $title; ?></title>
+        
+        <!-- Bootstrap 5 -->
+        <link href="https://cdn.jsdelivr.net/npm/bootstrap@5.1.3/dist/css/bootstrap.min.css" rel="stylesheet">
+        <!-- Bootstrap Icons -->
+        <link rel="stylesheet" href="https://cdn.jsdelivr.net/npm/bootstrap-icons@1.8.1/font/bootstrap-icons.css">
+        <!-- DataTables -->
+        <link rel="stylesheet" href="https://cdn.datatables.net/1.11.5/css/dataTables.bootstrap5.min.css">
+        
+        <style>
+            body { 
+                background-color: #f5f7fb; 
+                font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif; 
+                margin: 0;
+                padding: 0;
+                font-size: 0.9rem;
+            }
+            .navbar {
+                background: #37502c;
+            }
+            .card {
+                border-radius: 10px;
+                box-shadow: 0 5px 15px rgba(0,0,0,0.08);
+                margin-bottom: 15px;
+                border: none;
+            }
+            .card-header {
+                background: linear-gradient(135deg, #205e03 0%, #9bdb34 100%);
+                color: white;
+                border-radius: 10px 10px 0 0;
+                border: none;
+                padding: 12px 15px;
+            }
+            .table {
+                border-radius: 8px;
+                overflow: hidden;
+                box-shadow: 0 2px 8px rgba(0,0,0,0.05);
+                margin-bottom: 0;
+                font-size: 0.85rem;
+            }
+            .table th {
+                font-size: 0.8rem;
+                padding: 8px 12px;
+                background-color: #f8f9fa;
+                border-bottom: 2px solid #dee2e6;
+            }
+            .table td {
+                padding: 6px 12px;
+                vertical-align: middle;
+            }
+            .table tbody tr:hover {
+                background-color: #f8f9fa;
+            }
+            .status-active {
+                background-color: #d4edda;
+                color: #155724;
+                padding: 3px 6px;
+                border-radius: 4px;
+                font-size: 0.8rem;
+            }
+            .status-inactive {
+                background-color: #f8d7da;
+                color: #721c24;
+                padding: 3px 6px;
+                border-radius: 4px;
+                font-size: 0.8rem;
+            }
+            .badge {
+                font-size: 0.75rem;
+                padding: 3px 6px;
+            }
+            .action-buttons .btn {
+                padding: 3px 6px;
+                font-size: 0.8rem;
+                margin: 0 2px;
+            }
+            .search-box {
+                position: relative;
+            }
+            .search-box i {
+                position: absolute;
+                left: 10px;
+                top: 50%;
+                transform: translateY(-50%);
+                color: #6c757d;
+            }
+            .search-box input {
+                padding-left: 35px;
+                font-size: 0.85rem;
+                height: 36px;
+            }
+            .form-control, .form-select {
+                font-size: 0.85rem;
+                padding: 6px 10px;
+                height: 36px;
+            }
+            .stat-card {
+                padding: 12px;
+            }
+            .stat-card h3 {
+                font-size: 1.5rem;
+            }
+            .stat-card h6 {
+                font-size: 0.8rem;
+            }
+            .stat-card i {
+                font-size: 1.8rem;
+            }
+        </style>
+    </head>
+    <body>
+        <!-- Simple Navigation -->
+        <nav class="navbar navbar-expand-lg navbar-dark">
+            <div class="container-fluid">
+                <a class="navbar-brand" href="#">
+                    <i class="bi bi-qr-code-scan me-2"></i>AMS - User Management
+                </a>
+                <div class="d-flex align-items-center text-white">
+                    <span class="me-3" style="font-size: 0.9rem;">
+                        <i class="bi bi-person-circle me-1"></i>
+                        <?php echo htmlspecialchars($_SESSION['full_name'] ?? 'User'); ?>
+                    </span>
+                    <a href="../auth/logout.php" class="btn btn-outline-light btn-sm" style="font-size: 0.8rem;">
+                        <i class="bi bi-box-arrow-right"></i> Logout
+                    </a>
+                </div>
+            </div>
+        </nav>
+        
+        <div class="container-fluid mt-3">
+    <?php
+}
+?>
+<!-- ================ START OF YOUR USER MANAGEMENT CONTENT ================ -->
+
+<!-- Display messages -->
+<?php if (isset($_SESSION['message'])): ?>
+    <?php $message_type = $_SESSION['message_type'] ?? 'success'; ?>
+    <div class="alert alert-<?php echo $message_type; ?> alert-dismissible fade show py-2" role="alert" style="font-size: 0.85rem;">
+        <?php echo $_SESSION['message']; ?>
+        <button type="button" class="btn-close" data-bs-dismiss="alert" aria-label="Close"></button>
+    </div>
+    <?php 
+    unset($_SESSION['message']);
+    unset($_SESSION['message_type']);
+    ?>
+<?php endif; ?>
+
+<div class="content-wrapper">
+    <div class="container-fluid">
+        <div class="row mb-3">
+            <div class="col">
+                <div class="card">
+                    <div class="card-header d-flex justify-content-between align-items-center py-2">
+                        <h6 class="mb-0" style="font-size: 0.9rem;"><i class="bi bi-people-fill me-1"></i>User Management</h6>
+                        <button class="btn btn-primary btn-sm py-1 px-2" data-bs-toggle="modal" data-bs-target="#addUserModal" style="font-size: 0.8rem;">
+                            <i class="bi bi-person-plus me-1"></i> Add User
+                        </button>
+                    </div>
+                    <div class="card-body p-3">
+                        <!-- Search and Filter -->
+                        <div class="row mb-2 g-2">
+                            <div class="col-md-6">
+                                <div class="search-box">
+                                    <i class="bi bi-search"></i>
+                                    <input type="text" class="form-control" id="searchInput" placeholder="Search users...">
+                                </div>
+                            </div>
+                            <div class="col-md-3">
+                                <select class="form-select" id="roleFilter">
+                                    <option value="">All Roles</option>
+                                    <option value="admin">Admin</option>
+                                    <option value="teacher">Teacher</option>
+                                </select>
+                            </div>
+                            <div class="col-md-3">
+                                <select class="form-select" id="statusFilter">
+                                    <option value="">All Status</option>
+                                    <option value="1">Active</option>
+                                    <option value="0">Inactive</option>
+                                </select>
+                            </div>
+                        </div>
+
+                        <!-- Users Table - COMPACT VERSION -->
+                        <div class="table-responsive">
+                            <table class="table table-hover table-sm" id="usersTable">
+                                <thead>
+                                    <tr>
+                                        <th width="3%">#</th>
+                                        <th width="20%">Full Name</th>
+                                        <th width="18%">Email</th>
+                                        <th width="12%">Username</th>
+                                        <th width="10%">Role</th>
+                                        <th width="10%">Status</th>
+                                        <th width="12%">Created</th>
+                                        <th width="15%">Actions</th>
+                                    </tr>
+                                </thead>
+                                <tbody>
+                                    <?php
+                                    try {
+                                        $query = "SELECT * FROM users ORDER BY created_at DESC";
+                                        $stmt = $pdo->query($query);
+                                        $users = $stmt->fetchAll(PDO::FETCH_ASSOC);
+                                        $count = 1;
+
+                                        if (count($users) > 0):
+                                            foreach ($users as $user):
+                                                $status_class = $user['status'] ? 'status-active' : 'status-inactive';
+                                                $status_text = $user['status'] ? 'Active' : 'Inactive';
+                                                
+                                                $role_badge = '';
+                                                switch($user['role']) {
+                                                    case 'admin': $role_badge = 'danger'; break;
+                                                    case 'teacher': $role_badge = 'success'; break;
+                                                    default: $role_badge = 'secondary';
+                                                }
+                                    ?>
+                                    <tr>
+                                        <td class="text-muted"><?php echo $count++; ?></td>
+                                        <td>
+                                            <div class="d-flex align-items-center">
+                                                <div class="rounded-circle bg-light p-1 me-2">
+                                                    <i class="bi bi-person text-dark" style="font-size: 0.8rem;"></i>
+                                                </div>
+                                                <div>
+                                                    <div style="font-size: 0.85rem; font-weight: 500;"><?php echo htmlspecialchars($user['full_name']); ?></div>
+                                                    <?php if ($user['id'] == $_SESSION['user_id']): ?>
+                                                        <span class="badge bg-warning" style="font-size: 0.65rem;">You</span>
+                                                    <?php endif; ?>
+                                                </div>
+                                            </div>
+                                        </td>
+                                        <td>
+                                            <small class="text-truncate d-inline-block" style="max-width: 150px;" title="<?php echo htmlspecialchars($user['email'] ?? 'N/A'); ?>">
+                                                <?php echo htmlspecialchars($user['email'] ?? 'N/A'); ?>
+                                            </small>
+                                        </td>
+                                        <td><code style="font-size: 0.8rem;"><?php echo htmlspecialchars($user['username']); ?></code></td>
+                                        <td>
+                                            <span class="badge bg-<?php echo $role_badge; ?>">
+                                                <?php echo ucfirst($user['role']); ?>
+                                            </span>
+                                        </td>
+                                        <td>
+                                            <span class="<?php echo $status_class; ?>">
+                                                <?php echo $status_text; ?>
+                                            </span>
+                                        </td>
+                                        <td><small><?php echo date('m/d/Y', strtotime($user['created_at'])); ?></small></td>
+                                        <td>
+                                            <div class="d-flex">
+                                                <button class="btn btn-sm btn-outline-primary py-0 px-1" 
+                                                        onclick="editUser(<?php echo $user['id']; ?>)"
+                                                        title="Edit User">
+                                                    <i class="bi bi-pencil" style="font-size: 0.8rem;"></i>
+                                                </button>
+                                                <button class="btn btn-sm btn-outline-<?php echo $user['status'] ? 'warning' : 'success'; ?> py-0 px-1 mx-1"
+                                                        onclick="toggleStatus(<?php echo $user['id']; ?>, <?php echo $user['status']; ?>)"
+                                                        title="<?php echo $user['status'] ? 'Deactivate' : 'Activate'; ?>">
+                                                    <i class="bi bi-<?php echo $user['status'] ? 'x-circle' : 'check-circle'; ?>" style="font-size: 0.8rem;"></i>
+                                                </button>
+                                                <?php if ($user['id'] != $_SESSION['user_id']): ?>
+                                                <button class="btn btn-sm btn-outline-danger py-0 px-1"
+                                                        onclick="deleteUser(<?php echo $user['id']; ?>, '<?php echo htmlspecialchars($user['full_name']); ?>')"
+                                                        title="Delete User">
+                                                    <i class="bi bi-trash" style="font-size: 0.8rem;"></i>
+                                                </button>
+                                                <?php endif; ?>
+                                            </div>
+                                        </td>
+                                    </tr>
+                                    <?php 
+                                            endforeach; 
+                                        else: 
+                                    ?>
+                                    <tr>
+                                        <td colspan="8" class="text-center text-muted py-2">
+                                            <i class="bi bi-people me-1"></i> No users found.
+                                        </td>
+                                    </tr>
+                                    <?php 
+                                        endif; 
+                                    } catch (PDOException $e) { 
+                                    ?>
+                                    <tr>
+                                        <td colspan="8" class="text-center text-danger py-2">
+                                            <i class="bi bi-exclamation-triangle me-1"></i> Error loading users
+                                        </td>
+                                    </tr>
+                                    <?php } ?>
+                                </tbody>
+                            </table>
+                        </div>
+                    </div>
+                </div>
+            </div>
+        </div>
+
+        <!-- User Stats - Compact Version -->
+        <div class="row g-2">
+            <div class="col-md-3">
+                <div class="card stat-card py-2">
+                    <div class="card-body p-2">
+                        <div class="d-flex justify-content-between align-items-center">
+                            <div>
+                                <h6 class="text-muted mb-1" style="font-size: 0.75rem;">Total Users</h6>
+                                <h4 class="mb-0" style="font-size: 1.2rem;">
+                                    <?php
+                                    $query = "SELECT COUNT(*) as total FROM users";
+                                    $stmt = $pdo->query($query);
+                                    echo $stmt->fetch()['total'] ?? 0;
+                                    ?>
+                                </h4>
+                            </div>
+                            <i class="bi bi-people text-primary" style="font-size: 1.5rem;"></i>
+                        </div>
+                    </div>
+                </div>
+            </div>
+            <div class="col-md-3">
+                <div class="card stat-card py-2">
+                    <div class="card-body p-2">
+                        <div class="d-flex justify-content-between align-items-center">
+                            <div>
+                                <h6 class="text-muted mb-1" style="font-size: 0.75rem;">Active Users</h6>
+                                <h4 class="mb-0" style="font-size: 1.2rem;">
+                                    <?php
+                                    $query = "SELECT COUNT(*) as active FROM users WHERE status = 1";
+                                    $stmt = $pdo->query($query);
+                                    echo $stmt->fetch()['active'] ?? 0;
+                                    ?>
+                                </h4>
+                            </div>
+                            <i class="bi bi-check-circle text-success" style="font-size: 1.5rem;"></i>
+                        </div>
+                    </div>
+                </div>
+            </div>
+            <div class="col-md-3">
+                <div class="card stat-card py-2">
+                    <div class="card-body p-2">
+                        <div class="d-flex justify-content-between align-items-center">
+                            <div>
+                                <h6 class="text-muted mb-1" style="font-size: 0.75rem;">Admins</h6>
+                                <h4 class="mb-0" style="font-size: 1.2rem;">
+                                    <?php
+                                    $query = "SELECT COUNT(*) as admins FROM users WHERE role = 'admin'";
+                                    $stmt = $pdo->query($query);
+                                    echo $stmt->fetch()['admins'] ?? 0;
+                                    ?>
+                                </h4>
+                            </div>
+                            <i class="bi bi-shield-check text-danger" style="font-size: 1.5rem;"></i>
+                        </div>
+                    </div>
+                </div>
+            </div>
+            <div class="col-md-3">
+                <div class="card stat-card py-2">
+                    <div class="card-body p-2">
+                        <div class="d-flex justify-content-between align-items-center">
+                            <div>
+                                <h6 class="text-muted mb-1" style="font-size: 0.75rem;">Teachers</h6>
+                                <h4 class="mb-0" style="font-size: 1.2rem;">
+                                    <?php
+                                    $query = "SELECT COUNT(*) as teachers FROM users WHERE role = 'teacher'";
+                                    $stmt = $pdo->query($query);
+                                    echo $stmt->fetch()['teachers'] ?? 0;
+                                    ?>
+                                </h4>
+                            </div>
+                            <i class="bi bi-person-badge text-info" style="font-size: 1.5rem;"></i>
+                        </div>
+                    </div>
+                </div>
+            </div>
+        </div>
+    </div>
+</div>
+
+<!-- ================ MODALS SECTION ================ -->
+
+<!-- Add User Modal -->
+<div class="modal fade" id="addUserModal" tabindex="-1" aria-labelledby="addUserModalLabel" aria-hidden="true">
+    <div class="modal-dialog modal-md">
+        <div class="modal-content">
+            <div class="modal-header py-2">
+                <h6 class="modal-title mb-0" id="addUserModalLabel"><i class="bi bi-person-plus me-1"></i>Add New User</h6>
+                <button type="button" class="btn-close btn-close-white" data-bs-dismiss="modal" aria-label="Close"></button>
+            </div>
+            <form action="process_user.php" method="POST" id="addUserForm">
+                <div class="modal-body p-3">
+                    <input type="hidden" name="action" value="add">
+                    
+                    <div class="row g-2">
+                        <div class="col-md-6 mb-2">
+                            <label for="full_name" class="form-label" style="font-size: 0.85rem;">Full Name <span class="text-danger">*</span></label>
+                            <input type="text" class="form-control form-control-sm" id="full_name" name="full_name" required>
+                        </div>
+                        <div class="col-md-6 mb-2">
+                            <label for="username" class="form-label" style="font-size: 0.85rem;">Username <span class="text-danger">*</span></label>
+                            <input type="text" class="form-control form-control-sm" id="username" name="username" required>
+                        </div>
+                    </div>
+                    
+                    <div class="mb-2">
+                        <label for="email" class="form-label" style="font-size: 0.85rem;">Email Address</label>
+                        <input type="email" class="form-control form-control-sm" id="email" name="email">
+                    </div>
+                    
+                    <div class="row g-2">
+                        <div class="col-md-6 mb-2">
+                            <label for="password" class="form-label" style="font-size: 0.85rem;">Password <span class="text-danger">*</span></label>
+                            <input type="password" class="form-control form-control-sm" id="password" name="password" required>
+                        </div>
+                        <div class="col-md-6 mb-2">
+                            <label for="confirm_password" class="form-label" style="font-size: 0.85rem;">Confirm Password <span class="text-danger">*</span></label>
+                            <input type="password" class="form-control form-control-sm" id="confirm_password" name="confirm_password" required>
+                        </div>
+                    </div>
+                    
+                    <div class="row g-2">
+                        <div class="col-md-6 mb-2">
+                            <label for="role" class="form-label" style="font-size: 0.85rem;">Role <span class="text-danger">*</span></label>
+                            <select class="form-select form-select-sm" id="role" name="role" required>
+                                <option value="">Select Role</option>
+                                <option value="admin">Admin</option>
+                                <option value="teacher">Teacher</option>
+                            </select>
+                        </div>
+                        <div class="col-md-6 mb-2">
+                            <label for="status" class="form-label" style="font-size: 0.85rem;">Status</label>
+                            <select class="form-select form-select-sm" id="status" name="status">
+                                <option value="1">Active</option>
+                                <option value="0">Inactive</option>
+                            </select>
+                        </div>
+                    </div>
+                </div>
+                <div class="modal-footer py-2">
+                    <button type="button" class="btn btn-secondary btn-sm" data-bs-dismiss="modal">Cancel</button>
+                    <button type="submit" class="btn btn-primary btn-sm">Add User</button>
+                </div>
+            </form>
+        </div>
+    </div>
+</div>
+
+<!-- Edit User Modal -->
+<div class="modal fade" id="editUserModal" tabindex="-1" aria-labelledby="editUserModalLabel" aria-hidden="true">
+    <div class="modal-dialog modal-md">
+        <div class="modal-content">
+            <div class="modal-header py-2">
+                <h6 class="modal-title mb-0" id="editUserModalLabel"><i class="bi bi-pencil me-1"></i>Edit User</h6>
+                <button type="button" class="btn-close btn-close-white" data-bs-dismiss="modal" aria-label="Close"></button>
+            </div>
+            <form action="process_user.php" method="POST" id="editUserForm">
+                <div class="modal-body p-3">
+                    <input type="hidden" name="action" value="edit">
+                    <input type="hidden" id="edit_user_id" name="user_id">
+                    
+                    <div class="row g-2">
+                        <div class="col-md-6 mb-2">
+                            <label for="edit_full_name" class="form-label" style="font-size: 0.85rem;">Full Name <span class="text-danger">*</span></label>
+                            <input type="text" class="form-control form-control-sm" id="edit_full_name" name="full_name" required>
+                        </div>
+                        <div class="col-md-6 mb-2">
+                            <label for="edit_username" class="form-label" style="font-size: 0.85rem;">Username <span class="text-danger">*</span></label>
+                            <input type="text" class="form-control form-control-sm" id="edit_username" name="username" required>
+                        </div>
+                    </div>
+                    
+                    <div class="mb-2">
+                        <label for="edit_email" class="form-label" style="font-size: 0.85rem;">Email Address</label>
+                        <input type="email" class="form-control form-control-sm" id="edit_email" name="email">
+                    </div>
+                    
+                    <div class="row g-2">
+                        <div class="col-md-6 mb-2">
+                            <label for="edit_password" class="form-label" style="font-size: 0.85rem;">New Password (leave blank)</label>
+                            <input type="password" class="form-control form-control-sm" id="edit_password" name="password">
+                        </div>
+                        <div class="col-md-6 mb-2">
+                            <label for="edit_confirm_password" class="form-label" style="font-size: 0.85rem;">Confirm New Password</label>
+                            <input type="password" class="form-control form-control-sm" id="edit_confirm_password" name="confirm_password">
+                        </div>
+                    </div>
+                    
+                    <div class="row g-2">
+                        <div class="col-md-6 mb-2">
+                            <label for="edit_role" class="form-label" style="font-size: 0.85rem;">Role <span class="text-danger">*</span></label>
+                            <select class="form-select form-select-sm" id="edit_role" name="role" required>
+                                <option value="">Select Role</option>
+                                <option value="admin">Admin</option>
+                                <option value="teacher">Teacher</option>
+                            </select>
+                        </div>
+                        <div class="col-md-6 mb-2">
+                            <label for="edit_status" class="form-label" style="font-size: 0.85rem;">Status</label>
+                            <select class="form-select form-select-sm" id="edit_status" name="status">
+                                <option value="1">Active</option>
+                                <option value="0">Inactive</option>
+                            </select>
+                        </div>
+                    </div>
+                </div>
+                <div class="modal-footer py-2">
+                    <button type="button" class="btn btn-secondary btn-sm" data-bs-dismiss="modal">Cancel</button>
+                    <button type="submit" class="btn btn-primary btn-sm">Update User</button>
+                </div>
+            </form>
+        </div>
+    </div>
+</div>
+
+<!-- Delete Confirmation Modal -->
+<div class="modal fade" id="deleteModal" tabindex="-1" aria-labelledby="deleteModalLabel" aria-hidden="true">
+    <div class="modal-dialog modal-sm">
+        <div class="modal-content">
+            <div class="modal-header bg-danger text-white py-2">
+                <h6 class="modal-title mb-0" id="deleteModalLabel"><i class="bi bi-exclamation-triangle me-1"></i>Confirm Delete</h6>
+                <button type="button" class="btn-close btn-close-white" data-bs-dismiss="modal" aria-label="Close"></button>
+            </div>
+            <div class="modal-body p-3">
+                <p class="mb-2" style="font-size: 0.85rem;">Delete user: <strong id="deleteUserName"></strong>?</p>
+                <p class="text-danger mb-0" style="font-size: 0.8rem;"><i class="bi bi-exclamation-circle me-1"></i>Cannot be undone.</p>
+            </div>
+            <div class="modal-footer py-2">
+                <button type="button" class="btn btn-secondary btn-sm" data-bs-dismiss="modal">Cancel</button>
+                <button type="button" class="btn btn-danger btn-sm" id="confirmDelete">Delete</button>
+            </div>
+        </div>
+    </div>
+</div>
+
+<!-- ================ JAVASCRIPT SECTION ================ -->
+<script src="https://code.jquery.com/jquery-3.6.0.min.js"></script>
+<script src="https://cdn.jsdelivr.net/npm/bootstrap@5.1.3/dist/js/bootstrap.bundle.min.js"></script>
+<script src="https://cdn.datatables.net/1.11.5/js/jquery.dataTables.min.js"></script>
+<script src="https://cdn.datatables.net/1.11.5/js/dataTables.bootstrap5.min.js"></script>
+
+<script>
+// Table filtering and search - COMPACT VERSION
+$(document).ready(function() {
+    const table = $('#usersTable').DataTable({
+        pageLength: 15, // More rows per page
+        lengthMenu: [[10, 15, 25, 50, -1], [10, 15, 25, 50, "All"]],
+        responsive: true,
+        dom: '<"row"<"col-sm-12"fr>>rt<"row"<"col-sm-6"i><"col-sm-6"p>>',
+        language: {
+            search: "_INPUT_",
+            searchPlaceholder: "Search...",
+            lengthMenu: "Show _MENU_ entries",
+            info: "Showing _START_ to _END_ of _TOTAL_ users",
+            paginate: {
+                first: "First",
+                last: "Last",
+                next: "→",
+                previous: "←"
+            }
+        },
+        columnDefs: [
+            { orderable: false, targets: [7] } // Make actions column not sortable
+        ]
+    });
+
+    $('#searchInput').on('keyup', function() {
+        table.search(this.value).draw();
+    });
+
+    $('#roleFilter').on('change', function() {
+        table.column(4).search(this.value).draw();
+    });
+
+    $('#statusFilter').on('change', function() {
+        table.column(5).search(this.value).draw();
+    });
+});
+
+// Edit User Function
+function editUser(userId) {
+    fetch(`get_user.php?id=${userId}`)
+        .then(response => response.json())
+        .then(data => {
+            if (data.success) {
+                const user = data.user;
+                document.getElementById('edit_user_id').value = user.id;
+                document.getElementById('edit_full_name').value = user.full_name;
+                document.getElementById('edit_username').value = user.username;
+                document.getElementById('edit_email').value = user.email || '';
+                document.getElementById('edit_role').value = user.role;
+                document.getElementById('edit_status').value = user.status;
+                
+                const editModal = new bootstrap.Modal(document.getElementById('editUserModal'));
+                editModal.show();
+            } else {
+                alert('Error loading user data: ' + data.message);
+            }
+        })
+        .catch(error => {
+            console.error('Error:', error);
+            alert('Error loading user data');
+        });
+}
+
+// Toggle User Status
+function toggleStatus(userId, currentStatus) {
+    if (confirm(`Are you sure you want to ${currentStatus ? 'deactivate' : 'activate'} this user?`)) {
+        const formData = new FormData();
+        formData.append('action', 'toggle_status');
+        formData.append('user_id', userId);
+        
+        fetch('process_user.php', {
+            method: 'POST',
+            body: formData
+        })
+        .then(response => response.json())
+        .then(data => {
+            if (data.success) {
+                location.reload();
+            } else {
+                alert('Error: ' + data.message);
+            }
+        })
+        .catch(error => {
+            console.error('Error:', error);
+            alert('Error updating user status');
+        });
+    }
+}
+
+// Delete User Function
+let userToDelete = null;
+let userNameToDelete = '';
+
+function deleteUser(userId, userName) {
+    userToDelete = userId;
+    userNameToDelete = userName;
+    document.getElementById('deleteUserName').textContent = userName;
+    const deleteModal = new bootstrap.Modal(document.getElementById('deleteModal'));
+    deleteModal.show();
+}
+
+// Confirm Delete
+document.getElementById('confirmDelete').addEventListener('click', function() {
+    if (userToDelete) {
+        const formData = new FormData();
+        formData.append('action', 'delete');
+        formData.append('user_id', userToDelete);
+        
+        fetch('process_user.php', {
+            method: 'POST',
+            body: formData
+        })
+        .then(response => response.json())
+        .then(data => {
+            if (data.success) {
+                location.reload();
+            } else {
+                alert('Error: ' + data.message);
+                bootstrap.Modal.getInstance(document.getElementById('deleteModal')).hide();
+            }
+        })
+        .catch(error => {
+            console.error('Error:', error);
+            alert('Error deleting user');
+            bootstrap.Modal.getInstance(document.getElementById('deleteModal')).hide();
+        });
+    }
+});
+
+// Form Validation
+document.getElementById('addUserForm').addEventListener('submit', function(e) {
+    const password = document.getElementById('password').value;
+    const confirmPassword = document.getElementById('confirm_password').value;
+    
+    if (password !== confirmPassword) {
+        e.preventDefault();
+        alert('Passwords do not match!');
+        return false;
+    }
+    
+    if (password.length < 6) {
+        e.preventDefault();
+        alert('Password must be at least 6 characters long!');
+        return false;
+    }
+});
+
+document.getElementById('editUserForm').addEventListener('submit', function(e) {
+    const password = document.getElementById('edit_password').value;
+    const confirmPassword = document.getElementById('edit_confirm_password').value;
+    
+    if (password !== confirmPassword) {
+        e.preventDefault();
+        alert('Passwords do not match!');
+        return false;
+    }
+    
+    if (password && password.length < 6) {
+        e.preventDefault();
+        alert('Password must be at least 6 characters long!');
+        return false;
+    }
+});
+</script>
+
+<?php
+// Check if we need to close HTML tags (if no header was found)
+if (!$header_found) {
+    echo '</div></body></html>';
+}
+?>
\ No newline at end of file
diff --git a/src-backup/admin/view_activity.php b/src-backup/admin/view_activity.php
new file mode 100644
index 0000000..f3bf8fd
--- /dev/null
+++ b/src-backup/admin/view_activity.php
@@ -0,0 +1,249 @@
+<?php
+require_once '../includes/config.php';
+
+// Check if user is logged in and is admin
+if (!isset($_SESSION['logged_in']) || $_SESSION['logged_in'] !== true || $_SESSION['role'] !== 'admin') {
+    header('Location: ../auth/login.php');
+    exit();
+}
+
+$title = "View Activity";
+
+// Get activity ID
+$activity_id = $_GET['id'] ?? 0;
+
+if ($activity_id <= 0) {
+    $_SESSION['message'] = 'Invalid activity ID!';
+    $_SESSION['message_type'] = 'danger';
+    header('Location: manage_activities.php');
+    exit();
+}
+
+// Get activity data with related information
+$sql = "SELECT a.*, u.full_name as created_by_name, 
+               c.code as course_code, c.name as course_name,
+               d.code as department_code, d.name as department_name
+        FROM activities a
+        LEFT JOIN users u ON a.created_by = u.id
+        LEFT JOIN courses c ON a.course_id = c.id
+        LEFT JOIN departments d ON a.department_id = d.id
+        WHERE a.id = $activity_id";
+$result = query($conn, $sql);
+if (!$result || mysqli_num_rows($result) == 0) {
+    $_SESSION['message'] = 'Activity not found!';
+    $_SESSION['message_type'] = 'danger';
+    header('Location: manage_activities.php');
+    exit();
+}
+
+$activity = mysqli_fetch_assoc($result);
+
+// Get attendance stats
+$attendance_sql = "SELECT 
+                    COUNT(*) as total,
+                    SUM(CASE WHEN status = 'present' THEN 1 ELSE 0 END) as present,
+                    SUM(CASE WHEN status = 'late' THEN 1 ELSE 0 END) as late,
+                    SUM(CASE WHEN status = 'absent' THEN 1 ELSE 0 END) as absent
+                  FROM attendance 
+                  WHERE activity_id = " . $activity['id'];
+$attendance_result = query($conn, $attendance_sql);
+$stats = mysqli_fetch_assoc($attendance_result);
+
+$today = date('Y-m-d');
+$current_time = date('H:i:s');
+
+include '../includes/header.php';
+?>
+
+<!-- Page Header -->
+<div class="d-flex justify-content-between align-items-center mb-4">
+    <div>
+        <h1 class="h3 mb-2">Activity Details</h1>
+        <p class="text-muted">View detailed information about the activity.</p>
+    </div>
+    <div>
+        <a href="manage_activities.php" class="btn btn-secondary">
+            <i class="bi bi-arrow-left me-2"></i> Back to Activities
+        </a>
+    </div>
+</div>
+
+<!-- Activity Details -->
+<div class="row">
+    <div class="col-lg-8">
+        <div class="card shadow mb-4">
+            <div class="card-header">
+                <h5 class="mb-0"><?php echo htmlspecialchars($activity['name']); ?></h5>
+            </div>
+            <div class="card-body">
+                <div class="mb-4">
+                    <h6>Description</h6>
+                    <p><?php echo nl2br(htmlspecialchars($activity['description'] ?: 'No description provided')); ?></p>
+                </div>
+                
+                <div class="row">
+                    <div class="col-md-6 mb-3">
+                        <h6><i class="bi bi-calendar me-2"></i> Date</h6>
+                        <p><?php echo date('l, F j, Y', strtotime($activity['date'])); ?></p>
+                    </div>
+                    <div class="col-md-6 mb-3">
+                        <h6><i class="bi bi-clock me-2"></i> Time</h6>
+                        <p>
+                            <?php echo date('h:i A', strtotime($activity['time_in'])); ?> - 
+                            <?php echo date('h:i A', strtotime($activity['time_out'])); ?>
+                        </p>
+                    </div>
+                    
+                    <div class="col-md-6 mb-3">
+                        <h6><i class="bi bi-geo-alt me-2"></i> Location</h6>
+                        <p><?php echo htmlspecialchars($activity['location']); ?></p>
+                    </div>
+                    <div class="col-md-6 mb-3">
+                        <h6><i class="bi bi-people me-2"></i> Participants</h6>
+                        <p>
+                            <?php 
+                            switch($activity['required_students']) {
+                                case 'all': 
+                                    echo '<span class="badge bg-info">All Students</span>';
+                                    break;
+                                case 'specific_course': 
+                                    echo '<span class="badge bg-warning">' . ($activity['course_name'] ?? 'Specific Course') . '</span>';
+                                    break;
+                                case 'specific_department': 
+                                    echo '<span class="badge bg-primary">' . ($activity['department_name'] ?? 'Specific Department') . '</span>';
+                                    break;
+                            }
+                            ?>
+                        </p>
+                    </div>
+                </div>
+                
+                <div class="row">
+                    <div class="col-md-6 mb-3">
+                        <h6>Status</h6>
+                        <p>
+                            <?php if ($activity['status'] == 1): ?>
+                                <span class="badge bg-success">Active</span>
+                            <?php else: ?>
+                                <span class="badge bg-danger">Inactive</span>
+                            <?php endif; ?>
+                            
+                            <?php 
+                            $activity_date = $activity['date'];
+                            $activity_start = $activity['time_in'];
+                            $activity_end = $activity['time_out'];
+                            
+                            if ($activity_date > $today) {
+                                echo '<span class="badge bg-primary ms-2">Upcoming</span>';
+                            } elseif ($activity_date == $today && $current_time >= $activity_start && $current_time <= $activity_end) {
+                                echo '<span class="badge bg-success ms-2">Ongoing</span>';
+                            } else {
+                                echo '<span class="badge bg-secondary ms-2">Past</span>';
+                            }
+                            ?>
+                        </p>
+                    </div>
+                    
+                    <div class="col-md-6 mb-3">
+                        <h6>Created By</h6>
+                        <p><?php echo htmlspecialchars($activity['created_by_name']); ?></p>
+                        <small class="text-muted">
+                            Created: <?php echo date('F j, Y', strtotime($activity['created_at'])); ?><br>
+                            <?php if ($activity['updated_at'] != $activity['created_at']): ?>
+                                Updated: <?php echo date('F j, Y', strtotime($activity['updated_at'])); ?>
+                            <?php endif; ?>
+                        </small>
+                    </div>
+                </div>
+            </div>
+            <div class="card-footer">
+                <div class="btn-group">
+                    <a href="edit_activity.php?id=<?php echo $activity['id']; ?>" class="btn btn-warning">
+                        <i class="bi bi-pencil me-1"></i> Edit
+                    </a>
+                    <a href="reports.php?activity_id=<?php echo $activity['id']; ?>" class="btn btn-primary">
+                        <i class="bi bi-file-earmark-text me-1"></i> View Report
+                    </a>
+                    <?php if ($activity['date'] == $today && $current_time >= $activity['time_in'] && $current_time <= $activity['time_out']): ?>
+                        <a href="../admin/attendance.php" class="btn btn-success">
+                            <i class="bi bi-qr-code-scan me-1"></i> Take Attendance
+                        </a>
+                    <?php endif; ?>
+                </div>
+            </div>
+        </div>
+    </div>
+    
+    <div class="col-lg-4">
+        <!-- Attendance Stats Card -->
+        <div class="card shadow mb-4">
+            <div class="card-header">
+                <h6 class="mb-0">Attendance Statistics</h6>
+            </div>
+            <div class="card-body">
+                <div class="mb-3">
+                    <div class="d-flex justify-content-between mb-1">
+                        <span>Attendance Rate</span>
+                        <strong><?php echo $stats['total'] > 0 ? round(($stats['present'] / $stats['total']) * 100, 1) : 0; ?>%</strong>
+                    </div>
+                    <div class="progress" style="height: 8px;">
+                        <div class="progress-bar" role="progressbar" 
+                             style="width: <?php echo $stats['total'] > 0 ? ($stats['present'] / $stats['total'] * 100) : 0; ?>%">
+                        </div>
+                    </div>
+                </div>
+                
+                <div class="mb-2">
+                    <small class="d-flex justify-content-between">
+                        <span>Present:</span>
+                        <strong><?php echo $stats['present'] ?: 0; ?></strong>
+                    </small>
+                </div>
+                <div class="mb-2">
+                    <small class="d-flex justify-content-between">
+                        <span>Late:</span>
+                        <strong><?php echo $stats['late'] ?: 0; ?></strong>
+                    </small>
+                </div>
+                <div class="mb-2">
+                    <small class="d-flex justify-content-between">
+                        <span>Absent:</span>
+                        <strong><?php echo $stats['absent'] ?: 0; ?></strong>
+                    </small>
+                </div>
+                <div class="mt-3 pt-3 border-top">
+                    <small class="d-flex justify-content-between">
+                        <span>Total:</span>
+                        <strong><?php echo $stats['total'] ?: 0; ?></strong>
+                    </small>
+                </div>
+            </div>
+        </div>
+        
+        <!-- Quick Actions -->
+        <div class="card shadow">
+            <div class="card-header">
+                <h6 class="mb-0">Quick Actions</h6>
+            </div>
+            <div class="card-body">
+                <div class="d-grid gap-2">
+                    <a href="reports.php?activity_id=<?php echo $activity['id']; ?>" 
+                       class="btn btn-primary">
+                        <i class="bi bi-file-earmark-text me-1"></i> View Full Report
+                    </a>
+                    <a href="../admin/attendance.php" class="btn btn-success">
+                        <i class="bi bi-qr-code-scan me-1"></i> Take Attendance
+                    </a>
+                    <a href="edit_activity.php?id=<?php echo $activity['id']; ?>" class="btn btn-warning">
+                        <i class="bi bi-pencil me-1"></i> Edit Activity
+                    </a>
+                    <a href="manage_activities.php" class="btn btn-secondary">
+                        <i class="bi bi-list-ul me-1"></i> Back to List
+                    </a>
+                </div>
+            </div>
+        </div>
+    </div>
+</div>
+
+<?php include '../includes/footer.php'; ?>
\ No newline at end of file
diff --git a/src-backup/admin/view_student.php b/src-backup/admin/view_student.php
new file mode 100644
index 0000000..384a036
--- /dev/null
+++ b/src-backup/admin/view_student.php
@@ -0,0 +1,586 @@
+<?php
+require_once '../includes/config.php';
+
+// Check if user is logged in and is admin
+if (!isset($_SESSION['logged_in']) || $_SESSION['logged_in'] !== true || $_SESSION['role'] !== 'admin') {
+    header('Location: ../auth/login.php');
+    exit();
+}
+
+$title = "View Student";
+
+// Initialize variables
+$student_id = isset($_GET['id']) ? intval($_GET['id']) : 0;
+$message = '';
+$message_type = '';
+
+// Check for URL messages
+if (isset($_GET['msg'])) {
+    switch ($_GET['msg']) {
+        case 'added':
+            $message = 'Student added successfully!';
+            $message_type = 'success';
+            break;
+        case 'updated':
+            $message = 'Student updated successfully!';
+            $message_type = 'success';
+            break;
+        case 'deleted':
+            $message = 'Student deleted successfully!';
+            $message_type = 'success';
+            break;
+    }
+}
+
+// Get student data
+$student = null;
+if ($student_id > 0) {
+    $sql = "SELECT s.*, g.name as gender, c.code as course_code, c.name as course_name, 
+                   d.code as department_code, d.name as department_name,
+                   sc.code as school_code, sc.name as school_name
+            FROM students s
+            LEFT JOIN genders g ON s.gender_id = g.id
+            LEFT JOIN courses c ON s.course_id = c.id
+            LEFT JOIN departments d ON s.department_id = d.id
+            LEFT JOIN schools sc ON s.school_id = sc.id
+            WHERE s.id = ?";
+    
+    $stmt = mysqli_prepare($conn, $sql);
+    mysqli_stmt_bind_param($stmt, 'i', $student_id);
+    mysqli_stmt_execute($stmt);
+    $result = mysqli_stmt_get_result($stmt);
+    
+    if ($result && mysqli_num_rows($result) > 0) {
+        $student = mysqli_fetch_assoc($result);
+    } else {
+        $message = 'Student not found!';
+        $message_type = 'danger';
+        header('Location: manage_students.php?msg=notfound');
+        exit();
+    }
+    mysqli_stmt_close($stmt);
+} else {
+    $message = 'Invalid student ID!';
+    $message_type = 'danger';
+    header('Location: manage_students.php?msg=invalid');
+    exit();
+}
+
+include '../includes/header.php';
+?>
+
+<!-- Page Header -->
+<div class="container-fluid">
+    <div class="d-flex justify-content-between align-items-center mb-4">
+        <div>
+            <h1 class="h3 mb-2">
+                <i class="bi bi-person me-2"></i> Student Details
+            </h1>
+            <nav aria-label="breadcrumb">
+                <ol class="breadcrumb">
+                    <li class="breadcrumb-item"><a href="dashboard.php">Dashboard</a></li>
+                    <li class="breadcrumb-item"><a href="manage_students.php">Manage Students</a></li>
+                    <li class="breadcrumb-item active">View Student</li>
+                </ol>
+            </nav>
+        </div>
+        <div>
+            <a href="manage_students.php" class="btn btn-outline-secondary me-2">
+                <i class="bi bi-arrow-left me-2"></i> Back to Students
+            </a>
+            <a href="edit_student.php?id=<?php echo $student_id; ?>" class="btn btn-warning">
+                <i class="bi bi-pencil me-2"></i> Edit Student
+            </a>
+        </div>
+    </div>
+
+    <!-- Message Alert -->
+    <?php if ($message): ?>
+    <div class="alert alert-<?php echo $message_type; ?> alert-dismissible fade show" role="alert">
+        <i class="bi bi-<?php echo $message_type == 'success' ? 'check-circle' : 'exclamation-triangle'; ?> me-2"></i>
+        <?php echo $message; ?>
+        <button type="button" class="btn-close" data-bs-dismiss="alert" aria-label="Close"></button>
+    </div>
+    <?php endif; ?>
+
+    <?php if ($student): ?>
+    <div class="row">
+        <div class="col-lg-4">
+            <!-- Profile Card -->
+            <div class="card shadow mb-4">
+                <div class="card-body text-center">
+                    <?php if (!empty($student['picture_path'])): ?>
+                        <img src="../<?php echo htmlspecialchars($student['picture_path']); ?>" 
+                             alt="Student Photo" class="rounded-circle mb-3" 
+                             style="width: 150px; height: 150px; object-fit: cover;">
+                    <?php else: ?>
+                        <div class="bg-primary rounded-circle d-flex align-items-center justify-content-center mx-auto mb-3" 
+                             style="width: 150px; height: 150px;">
+                            <i class="bi bi-person" style="font-size: 4rem; color: white;"></i>
+                        </div>
+                    <?php endif; ?>
+                    
+                    <h4><?php echo htmlspecialchars($student['full_name']); ?></h4>
+                    <p class="text-muted mb-1"><?php echo htmlspecialchars($student['student_id']); ?></p>
+                    
+                    <div class="mb-3">
+                        <?php if ($student['status'] == 1): ?>
+                            <span class="badge bg-success">
+                                <i class="bi bi-check-circle me-1"></i> Active
+                            </span>
+                        <?php else: ?>
+                            <span class="badge bg-danger">
+                                <i class="bi bi-x-circle me-1"></i> Inactive
+                            </span>
+                        <?php endif; ?>
+                    </div>
+                    
+                    <div class="d-grid gap-2">
+                        <a href="edit_student.php?id=<?php echo $student_id; ?>" class="btn btn-warning">
+                            <i class="bi bi-pencil me-2"></i> Edit Profile
+                        </a>
+                        
+                        <div class="btn-group">
+                            <a href="../qr/generate.php?id=<?php echo $student_id; ?>" 
+                               class="btn btn-primary" target="_blank">
+                                <i class="bi bi-qr-code me-2"></i> View QR
+                            </a>
+                            <button type="button" class="btn btn-primary dropdown-toggle dropdown-toggle-split" 
+                                    data-bs-toggle="dropdown">
+                                <span class="visually-hidden">Toggle Dropdown</span>
+                            </button>
+                            <ul class="dropdown-menu">
+                                <li>
+                                    <a class="dropdown-item" href="../qr/generate.php?id=<?php echo $student_id; ?>&print=1" target="_blank">
+                                        <i class="bi bi-printer me-2"></i> Print QR
+                                    </a>
+                                </li>
+                                <li>
+                                    <a class="dropdown-item" href="../qr/generate.php?id=<?php echo $student_id; ?>&download=1">
+                                        <i class="bi bi-download me-2"></i> Download QR
+                                    </a>
+                                </li>
+                                <li>
+                                    <a class="dropdown-item" href="../qr/generate.php?id=<?php echo $student_id; ?>&autoPrint=1" target="_blank">
+                                        <i class="bi bi-printer-fill me-2"></i> Auto Print
+                                    </a>
+                                </li>
+                            </ul>
+                        </div>
+                        
+                        <button type="button" class="btn btn-danger" data-bs-toggle="modal" data-bs-target="#deleteModal">
+                            <i class="bi bi-trash me-2"></i> Delete Student
+                        </button>
+                    </div>
+                </div>
+            </div>
+            
+            <!-- QR Code Card -->
+            <div class="card shadow">
+                <div class="card-header bg-info text-white">
+                    <h6 class="m-0 font-weight-bold">
+                        <i class="bi bi-qr-code me-2"></i> QR Code Information
+                    </h6>
+                </div>
+                <div class="card-body">
+                    <div class="mb-3">
+                        <strong class="d-block">QR Code</strong>
+                        <code class="text-break"><?php echo htmlspecialchars($student['qr_code']); ?></code>
+                    </div>
+                    <div class="mb-3">
+                        <strong class="d-block">Generated</strong>
+                        <?php echo date('F j, Y, h:i A', strtotime($student['created_at'])); ?>
+                    </div>
+                    <div class="text-center">
+                        <a href="../qr/generate.php?id=<?php echo $student_id; ?>" 
+                           class="btn btn-outline-primary btn-sm" target="_blank">
+                            <i class="bi bi-eye me-1"></i> Preview QR Code
+                        </a>
+                    </div>
+                </div>
+            </div>
+        </div>
+        
+        <div class="col-lg-8">
+            <!-- Student Information Card -->
+            <div class="card shadow mb-4">
+                <div class="card-header bg-primary text-white">
+                    <h6 class="m-0 font-weight-bold">
+                        <i class="bi bi-person-lines-fill me-2"></i> Personal Information
+                    </h6>
+                </div>
+                <div class="card-body">
+                    <div class="row">
+                        <div class="col-md-6">
+                            <div class="mb-4">
+                                <strong class="d-block text-muted mb-1">Student ID</strong>
+                                <h5 class="text-primary"><?php echo htmlspecialchars($student['student_id']); ?></h5>
+                            </div>
+                            
+                            <div class="mb-4">
+                                <strong class="d-block text-muted mb-1">Full Name</strong>
+                                <h5><?php echo htmlspecialchars($student['full_name']); ?></h5>
+                            </div>
+                            
+                            <div class="mb-4">
+                                <strong class="d-block text-muted mb-1">Gender</strong>
+                                <p class="mb-0"><?php echo htmlspecialchars($student['gender']); ?></p>
+                            </div>
+                            
+                            <div class="mb-4">
+                                <strong class="d-block text-muted mb-1">Birth Date</strong>
+                                <p class="mb-0">
+                                    <?php if ($student['birth_date']): ?>
+                                        <?php echo date('F j, Y', strtotime($student['birth_date'])); ?>
+                                        <small class="text-muted">
+                                            (<?php echo date_diff(date_create($student['birth_date']), date_create('today'))->y; ?> years old)
+                                        </small>
+                                    <?php else: ?>
+                                        <span class="text-muted">Not set</span>
+                                    <?php endif; ?>
+                                </p>
+                            </div>
+                        </div>
+                        
+                        <div class="col-md-6">
+                            <div class="mb-4">
+                                <strong class="d-block text-muted mb-1">Contact Information</strong>
+                                <?php if (!empty($student['email'])): ?>
+                                    <div class="d-flex align-items-center mb-2">
+                                        <i class="bi bi-envelope me-2 text-muted"></i>
+                                        <a href="mailto:<?php echo htmlspecialchars($student['email']); ?>">
+                                            <?php echo htmlspecialchars($student['email']); ?>
+                                        </a>
+                                    </div>
+                                <?php endif; ?>
+                                
+                                <?php if (!empty($student['contact_number'])): ?>
+                                    <div class="d-flex align-items-center">
+                                        <i class="bi bi-telephone me-2 text-muted"></i>
+                                        <a href="tel:<?php echo htmlspecialchars($student['contact_number']); ?>">
+                                            <?php echo htmlspecialchars($student['contact_number']); ?>
+                                        </a>
+                                    </div>
+                                <?php endif; ?>
+                            </div>
+                            
+                            <div class="mb-4">
+                                <strong class="d-block text-muted mb-1">Address</strong>
+                                <p class="mb-0">
+                                    <?php if (!empty($student['address'])): ?>
+                                        <?php echo nl2br(htmlspecialchars($student['address'])); ?>
+                                    <?php else: ?>
+                                        <span class="text-muted">Not set</span>
+                                    <?php endif; ?>
+                                </p>
+                            </div>
+                        </div>
+                    </div>
+                </div>
+            </div>
+            
+            <!-- Academic Information Card -->
+            <div class="card shadow">
+                <div class="card-header bg-success text-white">
+                    <h6 class="m-0 font-weight-bold">
+                        <i class="bi bi-mortarboard me-2"></i> Academic Information
+                    </h6>
+                </div>
+                <div class="card-body">
+                    <div class="row">
+                        <div class="col-md-6">
+                            <div class="mb-4">
+                                <strong class="d-block text-muted mb-1">Year Level</strong>
+                                <span class="badge bg-info" style="font-size: 1rem;">
+                                    Year <?php echo $student['year_level']; ?>
+                                </span>
+                            </div>
+                            
+                            <div class="mb-4">
+                                <strong class="d-block text-muted mb-1">School</strong>
+                                <h5><?php echo htmlspecialchars($student['school_name']); ?></h5>
+                            </div>
+                            
+                            <div class="mb-4">
+                                <strong class="d-block text-muted mb-1">Department</strong>
+                                <h5><?php echo htmlspecialchars($student['department_name']); ?></h5>
+                                <small class="text-muted"><?php echo htmlspecialchars($student['department_code']); ?></small>
+                            </div>
+                        </div>
+                        
+                        <div class="col-md-6">
+                            <div class="mb-4">
+                                <strong class="d-block text-muted mb-1">Course</strong>
+                                <h5><?php echo htmlspecialchars($student['course_name']); ?></h5>
+                                <small class="text-muted"><?php echo htmlspecialchars($student['course_code']); ?></small>
+                            </div>
+                            
+                            <div class="mb-4">
+                                <strong class="d-block text-muted mb-1">Account Status</strong>
+                                <?php if ($student['status'] == 1): ?>
+                                    <span class="badge bg-success" style="font-size: 1rem;">
+                                        <i class="bi bi-check-circle me-1"></i> Active
+                                    </span>
+                                    <p class="mt-1 mb-0 text-muted">Student can log in and use the system</p>
+                                <?php else: ?>
+                                    <span class="badge bg-danger" style="font-size: 1rem;">
+                                        <i class="bi bi-x-circle me-1"></i> Inactive
+                                    </span>
+                                    <p class="mt-1 mb-0 text-muted">Student cannot log in to the system</p>
+                                <?php endif; ?>
+                            </div>
+                        </div>
+                    </div>
+                    
+                    <hr>
+                    
+                    <div class="row">
+                        <div class="col-md-6">
+                            <div class="mb-3">
+                                <strong class="d-block text-muted mb-1">Date Created</strong>
+                                <p class="mb-0">
+                                    <i class="bi bi-calendar-plus me-1"></i>
+                                    <?php echo date('F j, Y, h:i A', strtotime($student['created_at'])); ?>
+                                </p>
+                            </div>
+                        </div>
+                        <div class="col-md-6">
+                            <div class="mb-3">
+                                <strong class="d-block text-muted mb-1">Last Updated</strong>
+                                <p class="mb-0">
+                                    <i class="bi bi-clock-history me-1"></i>
+                                    <?php echo date('F j, Y, h:i A', strtotime($student['updated_at'])); ?>
+                                </p>
+                            </div>
+                        </div>
+                    </div>
+                </div>
+            </div>
+        </div>
+    </div>
+    
+    <!-- Delete Confirmation Modal -->
+    <div class="modal fade" id="deleteModal" tabindex="-1">
+        <div class="modal-dialog">
+            <div class="modal-content">
+                <div class="modal-header bg-danger text-white">
+                    <h5 class="modal-title">
+                        <i class="bi bi-exclamation-triangle me-2"></i> Confirm Delete
+                    </h5>
+                    <button type="button" class="btn-close btn-close-white" data-bs-dismiss="modal"></button>
+                </div>
+                <div class="modal-body">
+                    <p>Are you sure you want to delete student <strong><?php echo htmlspecialchars($student['full_name']); ?></strong>?</p>
+                    <p class="text-danger">
+                        <i class="bi bi-exclamation-circle me-1"></i>
+                        This action cannot be undone. All related activities and records will also be deleted.
+                    </p>
+                    <div class="alert alert-warning">
+                        <i class="bi bi-info-circle me-2"></i>
+                        <strong>Student Information:</strong><br>
+                        ID: <?php echo htmlspecialchars($student['student_id']); ?><br>
+                        Course: <?php echo htmlspecialchars($student['course_code']); ?><br>
+                        Department: <?php echo htmlspecialchars($student['department_name']); ?>
+                    </div>
+                </div>
+                <div class="modal-footer">
+                    <button type="button" class="btn btn-secondary" data-bs-dismiss="modal">Cancel</button>
+                    <form method="POST" action="manage_students.php" style="display: inline;">
+                        <input type="hidden" name="delete_student" value="1">
+                        <input type="hidden" name="id" value="<?php echo $student_id; ?>">
+                        <button type="submit" class="btn btn-danger">
+                            <i class="bi bi-trash me-2"></i> Delete Student
+                        </button>
+                    </form>
+                </div>
+            </div>
+        </div>
+    </div>
+    
+    <?php else: ?>
+    <!-- Student Not Found -->
+    <div class="card shadow">
+        <div class="card-body text-center py-5">
+            <i class="bi bi-person-x" style="font-size: 4rem; color: #dc3545;"></i>
+            <h3 class="mt-3">Student Not Found</h3>
+            <p class="text-muted">The student you're trying to view does not exist or has been deleted.</p>
+            <a href="manage_students.php" class="btn btn-primary mt-3">
+                <i class="bi bi-arrow-left me-2"></i> Back to Students List
+            </a>
+        </div>
+    </div>
+    <?php endif; ?>
+</div>
+
+<?php 
+$page_scripts = '
+<script>
+$(document).ready(function() {
+    // Print student information
+    $("#printStudentBtn").click(function() {
+        const printWindow = window.open("", "_blank");
+        printWindow.document.write(`
+            <!DOCTYPE html>
+            <html>
+            <head>
+                <title>Student Information - <?php echo htmlspecialchars($student[\'student_id\']); ?></title>
+                <style>
+                    body { font-family: Arial, sans-serif; margin: 20px; }
+                    h1 { text-align: center; margin-bottom: 30px; }
+                    .student-info { margin-bottom: 30px; }
+                    .section { margin-bottom: 20px; }
+                    .section-title { font-weight: bold; border-bottom: 2px solid #333; padding-bottom: 5px; margin-bottom: 10px; }
+                    .info-row { margin-bottom: 8px; }
+                    .label { font-weight: bold; display: inline-block; width: 150px; }
+                    .footer { text-align: center; margin-top: 30px; font-size: 12px; color: #666; }
+                    @media print {
+                        .no-print { display: none; }
+                        button { display: none; }
+                    }
+                </style>
+            </head>
+            <body>
+                <h1>Student Information</h1>
+                <div class="student-info">
+                    <div class="section">
+                        <div class="section-title">Personal Information</div>
+                        <div class="info-row">
+                            <span class="label">Student ID:</span>
+                            <?php echo htmlspecialchars($student[\'student_id\']); ?>
+                        </div>
+                        <div class="info-row">
+                            <span class="label">Full Name:</span>
+                            <?php echo htmlspecialchars($student[\'full_name\']); ?>
+                        </div>
+                        <div class="info-row">
+                            <span class="label">Gender:</span>
+                            <?php echo htmlspecialchars($student[\'gender\']); ?>
+                        </div>
+                        <div class="info-row">
+                            <span class="label">Birth Date:</span>
+                            <?php echo $student[\'birth_date\'] ? date(\'F j, Y\', strtotime($student[\'birth_date\'])) : \'Not set\'; ?>
+                        </div>
+                        <div class="info-row">
+                            <span class="label">Contact:</span>
+                            <?php echo !empty($student[\'contact_number\']) ? htmlspecialchars($student[\'contact_number\']) : \'Not set\'; ?>
+                        </div>
+                        <div class="info-row">
+                            <span class="label">Email:</span>
+                            <?php echo !empty($student[\'email\']) ? htmlspecialchars($student[\'email\']) : \'Not set\'; ?>
+                        </div>
+                        <div class="info-row">
+                            <span class="label">Address:</span>
+                            <?php echo !empty($student[\'address\']) ? htmlspecialchars($student[\'address\']) : \'Not set\'; ?>
+                        </div>
+                    </div>
+                    
+                    <div class="section">
+                        <div class="section-title">Academic Information</div>
+                        <div class="info-row">
+                            <span class="label">Year Level:</span>
+                            Year <?php echo $student[\'year_level\']; ?>
+                        </div>
+                        <div class="info-row">
+                            <span class="label">School:</span>
+                            <?php echo htmlspecialchars($student[\'school_name\']); ?>
+                        </div>
+                        <div class="info-row">
+                            <span class="label">Department:</span>
+                            <?php echo htmlspecialchars($student[\'department_name\']); ?>
+                        </div>
+                        <div class="info-row">
+                            <span class="label">Course:</span>
+                            <?php echo htmlspecialchars($student[\'course_name\']); ?>
+                        </div>
+                        <div class="info-row">
+                            <span class="label">Status:</span>
+                            <?php echo $student[\'status\'] == 1 ? \'Active\' : \'Inactive\'; ?>
+                        </div>
+                        <div class="info-row">
+                            <span class="label">QR Code:</span>
+                            <?php echo htmlspecialchars($student[\'qr_code\']); ?>
+                        </div>
+                    </div>
+                    
+                    <div class="section">
+                        <div class="section-title">System Information</div>
+                        <div class="info-row">
+                            <span class="label">Date Created:</span>
+                            <?php echo date(\'F j, Y, h:i A\', strtotime($student[\'created_at\'])); ?>
+                        </div>
+                        <div class="info-row">
+                            <span class="label">Last Updated:</span>
+                            <?php echo date(\'F j, Y, h:i A\', strtotime($student[\'updated_at\'])); ?>
+                        </div>
+                    </div>
+                </div>
+                <div class="footer">
+                    Student Management System - Generated on: <?php echo date(\'F j, Y, h:i A\'); ?>
+                </div>
+                <div style="text-align: center; margin-top: 20px;" class="no-print">
+                    <button onclick="window.print()">Print Report</button>
+                    <button onclick="window.close()" style="margin-left: 10px;">Close</button>
+                </div>
+                <script>
+                    window.onload = function() {
+                        window.print();
+                    };
+                <\/script>
+            </body>
+            </html>
+        `);
+        printWindow.document.close();
+    });
+    
+    // Copy QR code to clipboard
+    $("#copyQRBtn").click(function() {
+        const qrCode = "<?php echo htmlspecialchars($student[\'qr_code\']); ?>";
+        navigator.clipboard.writeText(qrCode).then(function() {
+            showNotification("QR code copied to clipboard!", "success");
+        }).catch(function(err) {
+            console.error("Failed to copy: ", err);
+            showNotification("Failed to copy QR code", "danger");
+        });
+    });
+});
+
+// Show notification
+function showNotification(message, type = "info") {
+    const alertClass = {
+        "success": "alert-success",
+        "danger": "alert-danger",
+        "warning": "alert-warning",
+        "info": "alert-info"
+    }[type] || "alert-info";
+    
+    const icon = {
+        "success": "check-circle",
+        "danger": "exclamation-triangle",
+        "warning": "exclamation-circle",
+        "info": "info-circle"
+    }[type] || "info-circle";
+    
+    // Remove existing alerts
+    $(".alert-dismissible").remove();
+    
+    const alertHtml = `
+        <div class="alert ${alertClass} alert-dismissible fade show" role="alert">
+            <i class="bi bi-${icon} me-2"></i>
+            ${message}
+            <button type="button" class="btn-close" data-bs-dismiss="alert" aria-label="Close"></button>
+        </div>
+    `;
+    
+    // Add alert at the top of the page
+    $(".d-flex.justify-content-between.align-items-center.mb-4").after(alertHtml);
+    
+    // Auto-remove after 5 seconds
+    setTimeout(() => {
+        $(".alert-dismissible").alert("close");
+    }, 5000);
+}
+</script>
+';
+
+include '../includes/footer.php';
+?>
\ No newline at end of file
diff --git a/src-backup/api/export_activities.php b/src-backup/api/export_activities.php
new file mode 100644
index 0000000..8225a98
--- /dev/null
+++ b/src-backup/api/export_activities.php
@@ -0,0 +1,106 @@
+<?php
+require_once '../includes/config.php';
+
+header('Content-Type: application/json');
+
+// Check if user is logged in and is admin
+if (!isset($_SESSION['logged_in']) || $_SESSION['logged_in'] !== true || $_SESSION['role'] !== 'admin') {
+    echo json_encode(['success' => false, 'message' => 'Not authorized']);
+    exit();
+}
+
+// Get all activities with details
+$sql = "SELECT 
+            a.name,
+            a.date,
+            a.time_in,
+            a.time_out,
+            a.location,
+            a.description,
+            a.required_students,
+            c.code as course_code,
+            c.name as course_name,
+            d.code as department_code,
+            d.name as department_name,
+            u.full_name as created_by,
+            CASE a.status WHEN 1 THEN 'Active' ELSE 'Inactive' END as status,
+            a.created_at,
+            a.updated_at
+        FROM activities a
+        LEFT JOIN users u ON a.created_by = u.id
+        LEFT JOIN courses c ON a.course_id = c.id
+        LEFT JOIN departments d ON a.department_id = d.id
+        ORDER BY a.date DESC, a.time_in ASC";
+
+$result = query($conn, $sql);
+$activities = [];
+
+while ($row = mysqli_fetch_assoc($result)) {
+    $activities[] = $row;
+}
+
+// Create CSV file
+$filename = 'activities_' . date('Y-m-d_H-i-s') . '.csv';
+$filepath = '../exports/' . $filename;
+
+// Create exports directory if not exists
+if (!file_exists('../exports')) {
+    mkdir('../exports', 0777, true);
+}
+
+// Open file for writing
+$file = fopen($filepath, 'w');
+
+// Add UTF-8 BOM for Excel compatibility
+fputs($file, $bom = (chr(0xEF) . chr(0xBB) . chr(0xBF)));
+
+// Add headers
+$headers = [
+    'Activity Name',
+    'Date',
+    'Time In',
+    'Time Out',
+    'Location',
+    'Description',
+    'Participants',
+    'Course Code',
+    'Course Name',
+    'Department Code',
+    'Department Name',
+    'Created By',
+    'Status',
+    'Created At',
+    'Updated At'
+];
+fputcsv($file, $headers);
+
+// Add data rows
+foreach ($activities as $activity) {
+    fputcsv($file, [
+        $activity['name'],
+        $activity['date'],
+        $activity['time_in'],
+        $activity['time_out'],
+        $activity['location'],
+        $activity['description'],
+        $activity['required_students'],
+        $activity['course_code'],
+        $activity['course_name'],
+        $activity['department_code'],
+        $activity['department_name'],
+        $activity['created_by'],
+        $activity['status'],
+        $activity['created_at'],
+        $activity['updated_at']
+    ]);
+}
+
+fclose($file);
+
+echo json_encode([
+    'success' => true,
+    'message' => 'Export completed',
+    'download_url' => '../exports/' . $filename,
+    'count' => count($activities)
+]);
+?>
\ No newline at end of file
diff --git a/src-backup/api/export_reports.php b/src-backup/api/export_reports.php
new file mode 100644
index 0000000..1cdf295
--- /dev/null
+++ b/src-backup/api/export_reports.php
@@ -0,0 +1,161 @@
+<?php
+require_once '../includes/config.php';
+
+header('Content-Type: application/json');
+
+// Check if user is logged in and is admin
+if (!isset($_SESSION['logged_in']) || $_SESSION['logged_in'] !== true || $_SESSION['role'] !== 'admin') {
+    echo json_encode(['success' => false, 'message' => 'Not authorized']);
+    exit();
+}
+
+// Get filter parameters
+$start_date = $_GET['start_date'] ?? date('Y-m-01');
+$end_date = $_GET['end_date'] ?? date('Y-m-t');
+$activity_id = $_GET['activity_id'] ?? '';
+$course_id = $_GET['course_id'] ?? '';
+$department_id = $_GET['department_id'] ?? '';
+$status = $_GET['status'] ?? '';
+
+// Build SQL query with filters
+$where_conditions = ["DATE(a.created_at) BETWEEN '$start_date' AND '$end_date'"];
+$join_tables = "";
+
+if ($activity_id) {
+    $where_conditions[] = "a.activity_id = " . intval($activity_id);
+}
+
+if ($course_id) {
+    $join_tables .= " LEFT JOIN students s ON a.student_id = s.id";
+    $where_conditions[] = "s.course_id = " . intval($course_id);
+}
+
+if ($department_id) {
+    if (strpos($join_tables, 'students s') === false) {
+        $join_tables .= " LEFT JOIN students s ON a.student_id = s.id";
+    }
+    $where_conditions[] = "s.department_id = " . intval($department_id);
+}
+
+if ($status && in_array($status, ['present', 'late', 'absent', 'excused'])) {
+    $where_conditions[] = "a.status = '$status'";
+}
+
+$where_clause = count($where_conditions) > 0 ? "WHERE " . implode(" AND ", $where_conditions) : "";
+
+// Get attendance records
+$sql = "SELECT 
+            DATE_FORMAT(a.created_at, '%Y-%m-%d') as date,
+            DATE_FORMAT(a.created_at, '%H:%i:%s') as time,
+            s.student_id,
+            s.full_name as student_name,
+            s.year_level,
+            c.code as course_code,
+            c.name as course_name,
+            d.code as department_code,
+            d.name as department_name,
+            ac.name as activity_name,
+            ac.location as activity_location,
+            a.time_in,
+            a.time_out,
+            a.status,
+            u.full_name as recorded_by,
+            a.notes
+        FROM attendance a
+        LEFT JOIN students s ON a.student_id = s.id
+        LEFT JOIN courses c ON s.course_id = c.id
+        LEFT JOIN departments d ON s.department_id = d.id
+        LEFT JOIN activities ac ON a.activity_id = ac.id
+        LEFT JOIN users u ON a.created_by = u.id
+        $join_tables
+        $where_clause
+        ORDER BY a.created_at DESC";
+
+$result = query($conn, $sql);
+$records = [];
+
+while ($row = mysqli_fetch_assoc($result)) {
+    $records[] = $row;
+}
+
+// Create CSV file
+$filename = 'attendance_report_' . date('Y-m-d_H-i-s') . '.csv';
+$filepath = '../exports/' . $filename;
+
+// Create exports directory if not exists
+if (!file_exists('../exports')) {
+    mkdir('../exports', 0777, true);
+}
+
+// Open file for writing
+$file = fopen($filepath, 'w');
+
+// Add UTF-8 BOM for Excel compatibility
+fputs($file, $bom = (chr(0xEF) . chr(0xBB) . chr(0xBF)));
+
+// Add headers
+$headers = [
+    'Date',
+    'Time',
+    'Student ID',
+    'Student Name',
+    'Year Level',
+    'Course Code',
+    'Course Name',
+    'Department Code',
+    'Department Name',
+    'Activity Name',
+    'Activity Location',
+    'Time In',
+    'Time Out',
+    'Status',
+    'Recorded By',
+    'Notes'
+];
+fputcsv($file, $headers);
+
+// Add data rows
+foreach ($records as $record) {
+    fputcsv($file, [
+        $record['date'],
+        $record['time'],
+        $record['student_id'],
+        $record['student_name'],
+        $record['year_level'],
+        $record['course_code'],
+        $record['course_name'],
+        $record['department_code'],
+        $record['department_name'],
+        $record['activity_name'],
+        $record['activity_location'],
+        $record['time_in'],
+        $record['time_out'],
+        ucfirst($record['status']),
+        $record['recorded_by'],
+        $record['notes']
+    ]);
+}
+
+fclose($file);
+
+// Get statistics for summary sheet
+$stats_sql = "SELECT 
+                COUNT(*) as total,
+                SUM(CASE WHEN status = 'present' THEN 1 ELSE 0 END) as present,
+                SUM(CASE WHEN status = 'late' THEN 1 ELSE 0 END) as late,
+                SUM(CASE WHEN status = 'absent' THEN 1 ELSE 0 END) as absent,
+                SUM(CASE WHEN status = 'excused' THEN 1 ELSE 0 END) as excused
+              FROM attendance 
+              WHERE DATE(created_at) BETWEEN '$start_date' AND '$end_date'";
+$stats_result = query($conn, $stats_sql);
+$stats = mysqli_fetch_assoc($stats_result);
+
+echo json_encode([
+    'success' => true,
+    'message' => 'Export completed',
+    'download_url' => '../exports/' . $filename,
+    'count' => count($records),
+    'stats' => $stats,
+    'period' => "$start_date to $end_date"
+]);
+?>
\ No newline at end of file
diff --git a/src-backup/api/get_courses.php b/src-backup/api/get_courses.php
new file mode 100644
index 0000000..d93ac14
--- /dev/null
+++ b/src-backup/api/get_courses.php
@@ -0,0 +1,25 @@
+<?php
+require_once '../includes/config.php';
+
+$department_id = isset($_GET['department_id']) ? intval($_GET['department_id']) : 0;
+
+$courses = [];
+if ($department_id > 0) {
+    $sql = "SELECT id, code, name FROM courses 
+            WHERE department_id = ? AND status = 1 
+            ORDER BY code";
+    
+    $stmt = mysqli_prepare($conn, $sql);
+    mysqli_stmt_bind_param($stmt, 'i', $department_id);
+    mysqli_stmt_execute($stmt);
+    $result = mysqli_stmt_get_result($stmt);
+    
+    while ($row = mysqli_fetch_assoc($result)) {
+        $courses[] = $row;
+    }
+    mysqli_stmt_close($stmt);
+}
+
+header('Content-Type: application/json');
+echo json_encode($courses);
+?>
\ No newline at end of file
diff --git a/src-backup/api/get_departments.php b/src-backup/api/get_departments.php
new file mode 100644
index 0000000..4b83f4f
--- /dev/null
+++ b/src-backup/api/get_departments.php
@@ -0,0 +1,25 @@
+<?php
+require_once '../includes/config.php';
+
+$school_id = isset($_GET['school_id']) ? intval($_GET['school_id']) : 0;
+
+$departments = [];
+if ($school_id > 0) {
+    $sql = "SELECT id, code, name FROM departments 
+            WHERE school_id = ? AND status = 1 
+            ORDER BY code";
+    
+    $stmt = mysqli_prepare($conn, $sql);
+    mysqli_stmt_bind_param($stmt, 'i', $school_id);
+    mysqli_stmt_execute($stmt);
+    $result = mysqli_stmt_get_result($stmt);
+    
+    while ($row = mysqli_fetch_assoc($result)) {
+        $departments[] = $row;
+    }
+    mysqli_stmt_close($stmt);
+}
+
+header('Content-Type: application/json');
+echo json_encode($departments);
+?>
\ No newline at end of file
diff --git a/src-backup/api/manual_entry.php b/src-backup/api/manual_entry.php
new file mode 100644
index 0000000..85785c0
--- /dev/null
+++ b/src-backup/api/manual_entry.php
@@ -0,0 +1,180 @@
+<?php
+require_once '../includes/config.php';
+
+header('Content-Type: application/json');
+
+// Check if user is logged in
+if (!isset($_SESSION['logged_in']) || $_SESSION['logged_in'] !== true) {
+    echo json_encode(['success' => false, 'message' => 'Not authenticated']);
+    exit();
+}
+
+$response = [
+    'success' => false,
+    'message' => '',
+    'data' => []
+];
+
+// Get input data
+$input = json_decode(file_get_contents('php://input'), true);
+$student_id_input = $input['student_id'] ?? '';
+
+if (empty($student_id_input)) {
+    $response['message'] = 'Student ID is required';
+    echo json_encode($response);
+    exit();
+}
+
+// Get student by student ID
+$sql = "SELECT s.*, c.code as course_code, d.name as department_name 
+        FROM students s 
+        JOIN courses c ON s.course_id = c.id 
+        JOIN departments d ON s.department_id = d.id 
+        WHERE s.student_id = '" . escape($conn, $student_id_input) . "' AND s.status = 1";
+$result = query($conn, $sql);
+
+if (!$result || mysqli_num_rows($result) === 0) {
+    $response['message'] = 'Student not found with ID: ' . $student_id_input;
+    echo json_encode($response);
+    exit();
+}
+
+$student = mysqli_fetch_assoc($result);
+
+// Get current time and date
+$current_time = date('H:i:s');
+$current_date = date('Y-m-d');
+
+// Find active activity for the student
+$activity_sql = "SELECT * FROM activities 
+                WHERE status = 1 
+                AND date = '$current_date' 
+                AND time_in <= '$current_time' 
+                AND time_out >= '$current_time' 
+                AND (
+                    required_students = 'all' 
+                    OR (required_students = 'specific_course' AND course_id = " . $student['course_id'] . ")
+                    OR (required_students = 'specific_department' AND department_id = " . $student['department_id'] . ")
+                )
+                LIMIT 1";
+
+$activity_result = query($conn, $activity_sql);
+
+if (!$activity_result || mysqli_num_rows($activity_result) === 0) {
+    // If no current activity, check for any today's activity
+    $activity_sql = "SELECT * FROM activities 
+                    WHERE status = 1 
+                    AND date = '$current_date'
+                    ORDER BY time_in DESC 
+                    LIMIT 1";
+    $activity_result = query($conn, $activity_sql);
+}
+
+if (!$activity_result || mysqli_num_rows($activity_result) === 0) {
+    $response['message'] = 'No active activity found for today';
+    echo json_encode($response);
+    exit();
+}
+
+$activity = mysqli_fetch_assoc($activity_result);
+
+// Check if attendance already exists
+$attendance_sql = "SELECT * FROM attendance 
+                   WHERE student_id = " . $student['id'] . " 
+                   AND activity_id = " . $activity['id'];
+$attendance_result = query($conn, $attendance_sql);
+
+if ($attendance_result && mysqli_num_rows($attendance_result) > 0) {
+    $attendance = mysqli_fetch_assoc($attendance_result);
+    
+    if ($attendance['time_out']) {
+        $response['message'] = 'Attendance already completed for this activity';
+        echo json_encode($response);
+        exit();
+    }
+    
+    // Update time out
+    $time_out = date('Y-m-d H:i:s');
+    $update_sql = "UPDATE attendance 
+                   SET time_out = '$time_out',
+                       status = 'present',
+                       updated_at = NOW()
+                   WHERE id = " . $attendance['id'];
+    
+    if (query($conn, $update_sql)) {
+        // Log the action
+        $log_sql = "INSERT INTO attendance_logs 
+                    (attendance_id, action, old_value, new_value, changed_by, notes) 
+                    VALUES (
+                        " . $attendance['id'] . ", 
+                        'time_out', 
+                        NULL, 
+                        '$time_out', 
+                        " . $_SESSION['user_id'] . ", 
+                        'Manual entry - time out'
+                    )";
+        query($conn, $log_sql);
+        
+        $response['success'] = true;
+        $response['message'] = 'Time out recorded successfully';
+        $response['data'] = [
+            'student_name' => $student['full_name'],
+            'activity_name' => $activity['name'],
+            'time' => date('h:i:s A'),
+            'action' => 'time_out'
+        ];
+    }
+} else {
+    // Create new attendance record
+    $time_in = date('Y-m-d H:i:s');
+    $status = 'present';
+    
+    // Check if late
+    $activity_start = strtotime($activity['date'] . ' ' . $activity['time_in']);
+    $current_timestamp = time();
+    
+    if (($current_timestamp - $activity_start) > 900) {
+        $status = 'late';
+    }
+    
+    $insert_sql = "INSERT INTO attendance 
+                   (student_id, activity_id, time_in, status, created_at, updated_at) 
+                   VALUES (
+                       " . $student['id'] . ", 
+                       " . $activity['id'] . ", 
+                       '$time_in', 
+                       '$status', 
+                       NOW(), 
+                       NOW()
+                   )";
+    
+    if (query($conn, $insert_sql)) {
+        $attendance_id = getInsertId($conn);
+        
+        // Log the action
+        $log_sql = "INSERT INTO attendance_logs 
+                    (attendance_id, action, old_value, new_value, changed_by, notes) 
+                    VALUES (
+                        $attendance_id, 
+                        'time_in', 
+                        NULL, 
+                        '$time_in', 
+                        " . $_SESSION['user_id'] . ", 
+                        'Manual entry - time in'
+                    )";
+        query($conn, $log_sql);
+        
+        $response['success'] = true;
+        $response['message'] = 'Time in recorded successfully';
+        $response['data'] = [
+            'student_name' => $student['full_name'],
+            'activity_name' => $activity['name'],
+            'time' => date('h:i:s A'),
+            'status' => $status,
+            'action' => 'time_in'
+        ];
+    }
+}
+
+echo json_encode($response);
+?>
\ No newline at end of file
diff --git a/src-backup/api/scan_qr.php b/src-backup/api/scan_qr.php
new file mode 100644
index 0000000..f8bb815
--- /dev/null
+++ b/src-backup/api/scan_qr.php
@@ -0,0 +1,192 @@
+<?php
+require_once '../includes/config.php';
+
+header('Content-Type: application/json');
+
+// Check if user is logged in
+if (!isset($_SESSION['logged_in']) || $_SESSION['logged_in'] !== true) {
+    echo json_encode(['success' => false, 'message' => 'Not authenticated']);
+    exit();
+}
+
+$response = [
+    'success' => false,
+    'message' => '',
+    'data' => []
+];
+
+// Get input data
+$input = json_decode(file_get_contents('php://input'), true);
+$qr_code = $input['qr_code'] ?? '';
+
+if (empty($qr_code)) {
+    $response['message'] = 'QR code is required';
+    echo json_encode($response);
+    exit();
+}
+
+// Extract student ID from QR code (format: STU_23-0217_692b07dd55c31)
+$qr_parts = explode('_', $qr_code);
+if (count($qr_parts) < 3 || $qr_parts[0] !== 'STU') {
+    $response['message'] = 'Invalid QR code format';
+    echo json_encode($response);
+    exit();
+}
+
+$student_id_str = $qr_parts[1]; // e.g., 23-0217
+
+// Get student details
+$sql = "SELECT s.*, c.code as course_code, d.name as department_name 
+        FROM students s 
+        JOIN courses c ON s.course_id = c.id 
+        JOIN departments d ON s.department_id = d.id 
+        WHERE s.qr_code = '" . escape($conn, $qr_code) . "' AND s.status = 1";
+$result = query($conn, $sql);
+
+if (!$result || mysqli_num_rows($result) === 0) {
+    $response['message'] = 'Student not found or QR code invalid';
+    echo json_encode($response);
+    exit();
+}
+
+$student = mysqli_fetch_assoc($result);
+
+// Get current time
+$current_time = date('H:i:s');
+$current_date = date('Y-m-d');
+
+// Find active activity for the student
+$activity_sql = "SELECT * FROM activities 
+                WHERE status = 1 
+                AND date = '$current_date' 
+                AND time_in <= '$current_time' 
+                AND time_out >= '$current_time' 
+                AND (
+                    required_students = 'all' 
+                    OR (required_students = 'specific_course' AND course_id = " . $student['course_id'] . ")
+                    OR (required_students = 'specific_department' AND department_id = " . $student['department_id'] . ")
+                )
+                LIMIT 1";
+
+$activity_result = query($conn, $activity_sql);
+
+if (!$activity_result || mysqli_num_rows($activity_result) === 0) {
+    // If no current activity, check for any today's activity
+    $activity_sql = "SELECT * FROM activities 
+                    WHERE status = 1 
+                    AND date = '$current_date'
+                    ORDER BY time_in DESC 
+                    LIMIT 1";
+    $activity_result = query($conn, $activity_sql);
+}
+
+if (!$activity_result || mysqli_num_rows($activity_result) === 0) {
+    $response['message'] = 'No active activity found for today';
+    echo json_encode($response);
+    exit();
+}
+
+$activity = mysqli_fetch_assoc($activity_result);
+
+// Check if attendance already exists
+$attendance_sql = "SELECT * FROM attendance 
+                   WHERE student_id = " . $student['id'] . " 
+                   AND activity_id = " . $activity['id'];
+$attendance_result = query($conn, $attendance_sql);
+
+if ($attendance_result && mysqli_num_rows($attendance_result) > 0) {
+    // Update time out if already has time in
+    $attendance = mysqli_fetch_assoc($attendance_result);
+    
+    if ($attendance['time_out']) {
+        $response['message'] = 'Attendance already completed for this activity';
+        echo json_encode($response);
+        exit();
+    }
+    
+    // Update time out
+    $time_out = date('Y-m-d H:i:s');
+    $update_sql = "UPDATE attendance 
+                   SET time_out = '$time_out',
+                       status = 'present',
+                       updated_at = NOW()
+                   WHERE id = " . $attendance['id'];
+    
+    if (query($conn, $update_sql)) {
+        // Log the action
+        $log_sql = "INSERT INTO attendance_logs 
+                    (attendance_id, action, old_value, new_value, changed_by, notes) 
+                    VALUES (
+                        " . $attendance['id'] . ", 
+                        'time_out', 
+                        NULL, 
+                        '$time_out', 
+                        " . $_SESSION['user_id'] . ", 
+                        'QR code scan - time out'
+                    )";
+        query($conn, $log_sql);
+        
+        $response['success'] = true;
+        $response['message'] = 'Time out recorded successfully';
+        $response['data'] = [
+            'student_name' => $student['full_name'],
+            'activity_name' => $activity['name'],
+            'time' => date('h:i:s A'),
+            'status' => 'present',
+            'action' => 'time_out'
+        ];
+    }
+} else {
+    // Create new attendance record
+    $time_in = date('Y-m-d H:i:s');
+    $status = 'present';
+    
+    // Check if late (more than 15 minutes after activity start)
+    $activity_start = strtotime($activity['date'] . ' ' . $activity['time_in']);
+    $current_timestamp = time();
+    
+    if (($current_timestamp - $activity_start) > 900) { // 900 seconds = 15 minutes
+        $status = 'late';
+    }
+    
+    $insert_sql = "INSERT INTO attendance 
+                   (student_id, activity_id, time_in, status, created_at, updated_at) 
+                   VALUES (
+                       " . $student['id'] . ", 
+                       " . $activity['id'] . ", 
+                       '$time_in', 
+                       '$status', 
+                       NOW(), 
+                       NOW()
+                   )";
+    
+    if (query($conn, $insert_sql)) {
+        $attendance_id = getInsertId($conn);
+        
+        // Log the action
+        $log_sql = "INSERT INTO attendance_logs 
+                    (attendance_id, action, old_value, new_value, changed_by, notes) 
+                    VALUES (
+                        $attendance_id, 
+                        'time_in', 
+                        NULL, 
+                        '$time_in', 
+                        " . $_SESSION['user_id'] . ", 
+                        'QR code scan - time in'
+                    )";
+        query($conn, $log_sql);
+        
+        $response['success'] = true;
+        $response['message'] = 'Time in recorded successfully';
+        $response['data'] = [
+            'student_name' => $student['full_name'],
+            'activity_name' => $activity['name'],
+            'time' => date('h:i:s A'),
+            'status' => $status,
+            'action' => 'time_in'
+        ];
+    }
+}
+
+echo json_encode($response);
+?>
\ No newline at end of file
diff --git a/src-backup/assets/css/style.css b/src-backup/assets/css/style.css
new file mode 100644
index 0000000..b75e5c9
--- /dev/null
+++ b/src-backup/assets/css/style.css
@@ -0,0 +1,141 @@
+/* Main Stylesheet */
+:root {
+    --primary-color: #3498db;
+    --secondary-color: #2c3e50;
+    --success-color: #27ae60;
+    --danger-color: #e74c3c;
+    --warning-color: #f39c12;
+    --info-color: #17a2b8;
+}
+
+body {
+    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
+    background-color: #f8f9fa;
+    color: #336494;
+    margin: 10;
+    padding: 10px;
+}
+
+.login-page {
+    background: linear-gradient(135deg, #8bea66 0%, #a0a24b 100%);
+    height: 100vh;
+    display: flex;
+    align-items: center;
+    justify-content: center;
+}
+
+
+.card {
+    border: none;
+    border-radius: 15px;
+    box-shadow: 0 5px 15px rgba(0,0,0,0.08);
+}
+
+.card-header {
+    border-radius: 15px 15px 0 0 !important;
+}
+
+/* Table Styles */
+.table-hover tbody tr:hover {
+    background-color: rgba(52, 152, 219, 0.1);
+}
+
+/* Button Styles */
+.btn {
+    border-radius: 8px;
+    padding: 8px 20px;
+    font-weight: 500;
+    transition: all 0.3s;
+}
+
+.btn-primary {
+    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
+    border: none;
+}
+
+.btn-primary:hover {
+    transform: translateY(-2px);
+    box-shadow: 0 5px 15px rgba(102, 126, 234, 0.4);
+}
+
+/* Badge Styles */
+.badge {
+    padding: 5px 10px;
+    border-radius: 10px;
+    font-weight: 500;
+}
+
+/* Form Styles */
+.form-control {
+    border-radius: 8px;
+    border: 1px solid #dee2e6;
+    padding: 10px 15px;
+}
+
+.form-control:focus {
+    border-color: var(--primary-color);
+    box-shadow: 0 0 0 0.2rem rgba(52, 152, 219, 0.25);
+}
+
+/* Alert Styles */
+.alert {
+    border-radius: 10px;
+    border: none;
+}
+
+/* Custom Scrollbar */
+::-webkit-scrollbar {
+    width: 8px;
+}
+
+::-webkit-scrollbar-track {
+    background: #f1f1f1;
+}
+
+::-webkit-scrollbar-thumb {
+    background: var(--primary-color);
+    border-radius: 4px;
+}
+
+::-webkit-scrollbar-thumb:hover {
+    background: #2980b9;
+}
+
+/* Animation for attendance success */
+@keyframes successPulse {
+    0% { transform: scale(1); }
+    50% { transform: scale(1.05); }
+    100% { transform: scale(1); }
+}
+
+.attendance-success {
+    animation: successPulse 0.5s ease-in-out;
+}
+
+/* Scanner container */
+#qr-reader {
+    border: 2px dashed #dee2e6;
+    border-radius: 10px;
+    padding: 10px;
+}
+
+/* Calendar icon */
+.calendar-icon {
+    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
+    color: white;
+    text-align: center;
+    width: 50px;
+    border-radius: 8px;
+}
+
+/* Print styles */
+@media print {
+    .sidebar, .navbar, .btn {
+        display: none !important;
+    }
+    
+    .main-content {
+        margin-left: 0 !important;
+        width: 100% !important;
+    }
+}
\ No newline at end of file
diff --git a/src-backup/assets/image/aldersgate.png b/src-backup/assets/image/aldersgate.png
new file mode 100644
index 0000000..3a37d54
Binary files /dev/null and b/src-backup/assets/image/aldersgate.png differ
diff --git a/src-backup/assets/js/scanner.js b/src-backup/assets/js/scanner.js
new file mode 100644
index 0000000..99915d3
--- /dev/null
+++ b/src-backup/assets/js/scanner.js
@@ -0,0 +1,273 @@
+/**
+ * QR Code Scanner Module
+ */
+class QRScanner {
+    constructor(options = {}) {
+        this.options = {
+            scannerId: 'qr-reader',
+            resultId: 'scan-result',
+            facingMode: 'environment',
+            fps: 10,
+            qrbox: { width: 250, height: 250 },
+            ...options
+        };
+        
+        this.scanner = null;
+        this.isScanning = false;
+        this.lastScanTime = 0;
+        this.scanCooldown = 2000; // 2 seconds cooldown
+        
+        this.init();
+    }
+    
+    init() {
+        this.scanner = new Html5Qrcode(this.options.scannerId);
+        
+        // Create result container if not exists
+        if (!document.getElementById(this.options.resultId)) {
+            const resultDiv = document.createElement('div');
+            resultDiv.id = this.options.resultId;
+            document.querySelector(`#${this.options.scannerId}`).parentNode.appendChild(resultDiv);
+        }
+    }
+    
+    async start() {
+        if (this.isScanning) return;
+        
+        try {
+            await this.scanner.start(
+                { facingMode: this.options.facingMode },
+                this.options,
+                this.onScanSuccess.bind(this),
+                this.onScanError.bind(this)
+            );
+            
+            this.isScanning = true;
+            this.updateUI('started');
+            
+        } catch (error) {
+            console.error('Failed to start scanner:', error);
+            this.showError('Failed to start camera. Please check permissions.');
+        }
+    }
+    
+    stop() {
+        if (!this.isScanning) return;
+        
+        this.scanner.stop().then(() => {
+            this.isScanning = false;
+            this.updateUI('stopped');
+        }).catch(error => {
+            console.error('Failed to stop scanner:', error);
+        });
+    }
+    
+    onScanSuccess(decodedText, decodedResult) {
+        const currentTime = Date.now();
+        
+        // Prevent multiple scans in short time
+        if (currentTime - this.lastScanTime < this.scanCooldown) {
+            return;
+        }
+        
+        this.lastScanTime = currentTime;
+        
+        // Show scanning indicator
+        this.showResult('scanning', 'Scanning QR code...');
+        
+        // Process the scan
+        this.processQRCode(decodedText);
+    }
+    
+    onScanError(error) {
+        console.warn('QR Scan Error:', error);
+        // Don't show errors to user unless critical
+    }
+    
+    async processQRCode(qrData) {
+        try {
+            const response = await fetch('../api/scan_qr.php', {
+                method: 'POST',
+                headers: {
+                    'Content-Type': 'application/json',
+                },
+                body: JSON.stringify({ qr_code: qrData })
+            });
+            
+            const data = await response.json();
+            
+            if (data.success) {
+                this.showResult('success', data);
+                this.playSound('success');
+                
+                // Auto-stop after successful scan (optional)
+                if (this.options.autoStop) {
+                    setTimeout(() => this.stop(), 3000);
+                }
+                
+            } else {
+                this.showResult('error', data.message);
+                this.playSound('error');
+            }
+            
+        } catch (error) {
+            console.error('Processing error:', error);
+            this.showResult('error', 'Network error. Please try again.');
+            this.playSound('error');
+        }
+    }
+    
+    showResult(type, data) {
+        const resultDiv = document.getElementById(this.options.resultId);
+        
+        let html = '';
+        
+        switch(type) {
+            case 'scanning':
+                html = `
+                    <div class="alert alert-info">
+                        <div class="spinner-border spinner-border-sm me-2" role="status"></div>
+                        ${data}
+                    </div>
+                `;
+                break;
+                
+            case 'success':
+                html = `
+                    <div class="alert alert-success attendance-success">
+                        <div class="d-flex align-items-center">
+                            <i class="bi bi-check-circle-fill me-3" style="font-size: 2rem;"></i>
+                            <div>
+                                <h5 class="mb-1">Attendance Recorded!</h5>
+                                <p class="mb-1"><strong>Student:</strong> ${data.data.student_name}</p>
+                                <p class="mb-1"><strong>Activity:</strong> ${data.data.activity_name}</p>
+                                <p class="mb-0"><strong>Time:</strong> ${data.data.time}</p>
+                            </div>
+                        </div>
+                    </div>
+                `;
+                break;
+                
+            case 'error':
+                html = `
+                    <div class="alert alert-danger">
+                        <i class="bi bi-exclamation-triangle me-2"></i>
+                        ${data}
+                    </div>
+                `;
+                break;
+        }
+        
+        resultDiv.innerHTML = html;
+        
+        // Auto-clear result after some time
+        if (type !== 'scanning') {
+            setTimeout(() => {
+                if (resultDiv.innerHTML.includes(html)) {
+                    resultDiv.innerHTML = '';
+                }
+            }, 5000);
+        }
+    }
+    
+    showError(message) {
+        const resultDiv = document.getElementById(this.options.resultId);
+        resultDiv.innerHTML = `
+            <div class="alert alert-danger">
+                <i class="bi bi-camera-video-off me-2"></i>
+                ${message}
+            </div>
+        `;
+    }
+    
+    updateUI(state) {
+        const scannerDiv = document.getElementById(this.options.scannerId);
+        
+        if (state === 'started') {
+            scannerDiv.classList.add('scanning');
+        } else {
+            scannerDiv.classList.remove('scanning');
+        }
+    }
+    
+    playSound(type) {
+        // Create audio context for sounds
+        try {
+            const audioContext = new (window.AudioContext || window.webkitAudioContext)();
+            const oscillator = audioContext.createOscillator();
+            const gainNode = audioContext.createGain();
+            
+            oscillator.connect(gainNode);
+            gainNode.connect(audioContext.destination);
+            
+            if (type === 'success') {
+                oscillator.frequency.setValueAtTime(523.25, audioContext.currentTime); // C5
+                oscillator.frequency.setValueAtTime(659.25, audioContext.currentTime + 0.1); // E5
+                oscillator.frequency.setValueAtTime(783.99, audioContext.currentTime + 0.2); // G5
+            } else {
+                oscillator.frequency.setValueAtTime(200, audioContext.currentTime); // Low tone
+            }
+            
+            gainNode.gain.setValueAtTime(0.1, audioContext.currentTime);
+            gainNode.gain.exponentialRampToValueAtTime(0.01, audioContext.currentTime + 0.3);
+            
+            oscillator.start();
+            oscillator.stop(audioContext.currentTime + 0.3);
+            
+        } catch (error) {
+            console.log('Audio not supported');
+        }
+    }
+    
+    toggleCamera() {
+        if (this.options.facingMode === 'environment') {
+            this.options.facingMode = 'user';
+        } else {
+            this.options.facingMode = 'environment';
+        }
+        
+        this.stop();
+        setTimeout(() => this.start(), 500);
+    }
+}
+
+// Initialize scanner when DOM is loaded
+document.addEventListener('DOMContentLoaded', function() {
+    // Check for scanner elements on page
+    const scannerElements = document.querySelectorAll('[data-scanner]');
+    
+    scannerElements.forEach(element => {
+        const scannerId = element.getAttribute('data-scanner') || 'qr-reader';
+        const scanner = new QRScanner({
+            scannerId: scannerId,
+            autoStop: element.getAttribute('data-auto-stop') === 'true'
+        });
+        
+        // Add start/stop buttons if not auto-start
+        if (element.getAttribute('data-auto-start') !== 'true') {
+            const controls = document.createElement('div');
+            controls.className = 'scanner-controls mt-3';
+            controls.innerHTML = `
+                <button class="btn btn-success me-2 start-scan">
+                    <i class="bi bi-play-circle"></i> Start Scanner
+                </button>
+                <button class="btn btn-danger me-2 stop-scan">
+                    <i class="bi bi-stop-circle"></i> Stop Scanner
+                </button>
+                <button class="btn btn-secondary toggle-camera">
+                    <i class="bi bi-camera-video"></i> Switch Camera
+                </button>
+            `;
+            
+            element.parentNode.appendChild(controls);
+            
+            // Add event listeners
+            controls.querySelector('.start-scan').addEventListener('click', () => scanner.start());
+            controls.querySelector('.stop-scan').addEventListener('click', () => scanner.stop());
+            controls.querySelector('.toggle-camera').addEventListener('click', () => scanner.toggleCamera());
+        } else {
+            // Auto-start scanner
+            setTimeout(() => scanner.start(), 1000);
+        }
+    });
+});
\ No newline at end of file
diff --git a/src-backup/attendance_system.sql b/src-backup/attendance_system.sql
new file mode 100644
index 0000000..0be3835
--- /dev/null
+++ b/src-backup/attendance_system.sql
@@ -0,0 +1,410 @@
+/*
+ Navicat MySQL Dump SQL
+
+ Source Server         : localhost_3306
+ Source Server Type    : MySQL
+ Source Server Version : 100432 (10.4.32-MariaDB)
+ Source Host           : localhost:3306
+ Source Schema         : attendance_system
+
+ Target Server Type    : MySQL
+ Target Server Version : 100432 (10.4.32-MariaDB)
+ File Encoding         : 65001
+
+ Date: 14/12/2025 12:46:51
+*/
+
+SET NAMES utf8mb4;
+SET FOREIGN_KEY_CHECKS = 0;
+
+-- ----------------------------
+-- Table structure for activities
+-- ----------------------------
+DROP TABLE IF EXISTS `activities`;
+CREATE TABLE `activities`  (
+  `id` int NOT NULL AUTO_INCREMENT,
+  `name` varchar(100) CHARACTER SET utf8mb4 COLLATE utf8mb4_general_ci NOT NULL,
+  `date` date NOT NULL,
+  `time_in` time NOT NULL,
+  `time_out` time NOT NULL,
+  `description` text CHARACTER SET utf8mb4 COLLATE utf8mb4_general_ci NULL,
+  `location` varchar(255) CHARACTER SET utf8mb4 COLLATE utf8mb4_general_ci NULL DEFAULT NULL,
+  `required_students` enum('all','specific_course','specific_department') CHARACTER SET utf8mb4 COLLATE utf8mb4_general_ci NULL DEFAULT 'all',
+  `course_id` int NULL DEFAULT NULL,
+  `department_id` int NULL DEFAULT NULL,
+  `created_by` int NOT NULL,
+  `created_at` timestamp NOT NULL DEFAULT current_timestamp(),
+  `updated_at` timestamp NOT NULL DEFAULT current_timestamp() ON UPDATE CURRENT_TIMESTAMP,
+  `status` tinyint NULL DEFAULT 1 COMMENT '1=Active, 0=Inactive',
+  PRIMARY KEY (`id`) USING BTREE,
+  INDEX `idx_date`(`date` ASC) USING BTREE,
+  INDEX `idx_created_by`(`created_by` ASC) USING BTREE,
+  INDEX `idx_status`(`status` ASC) USING BTREE,
+  INDEX `idx_course_id`(`course_id` ASC) USING BTREE,
+  INDEX `idx_department_id`(`department_id` ASC) USING BTREE,
+  CONSTRAINT `activities_ibfk_1` FOREIGN KEY (`created_by`) REFERENCES `users` (`id`) ON DELETE RESTRICT ON UPDATE CASCADE,
+  CONSTRAINT `activities_ibfk_2` FOREIGN KEY (`course_id`) REFERENCES `courses` (`id`) ON DELETE SET NULL ON UPDATE CASCADE,
+  CONSTRAINT `activities_ibfk_3` FOREIGN KEY (`department_id`) REFERENCES `departments` (`id`) ON DELETE SET NULL ON UPDATE CASCADE
+) ENGINE = InnoDB AUTO_INCREMENT = 8 CHARACTER SET = utf8mb4 COLLATE = utf8mb4_general_ci ROW_FORMAT = DYNAMIC;
+
+-- ----------------------------
+-- Records of activities
+-- ----------------------------
+INSERT INTO `activities` VALUES (3, 'JPCS Week', '2025-11-20', '08:00:00', '17:00:00', 'Cybersecurity Seminar, Recognition, and Opening Ceremony of JPCS Week with the theme \"Think I.T. DO. I.T. BE IT\".', 'AVR1', 'specific_course', 1, 1, 1, '2025-11-30 00:34:27', '2025-11-30 00:34:27', 1);
+INSERT INTO `activities` VALUES (4, 'Morning Class Nov 30', '2025-11-30', '08:00:00', '10:00:00', 'Regular class session', 'Room 101', 'all', NULL, NULL, 1, '2025-11-30 17:27:14', '2025-11-30 17:27:14', 1);
+INSERT INTO `activities` VALUES (5, 'Christmas Party', '2025-12-07', '21:40:00', '23:00:00', '', 'AVR1', 'all', NULL, NULL, 1, '2025-12-07 21:36:33', '2025-12-07 21:36:33', 1);
+INSERT INTO `activities` VALUES (7, 'Philhealth Yakap Orientation Program', '2025-12-09', '16:00:00', '17:00:00', '', 'AVR1', 'specific_course', 1, NULL, 1, '2025-12-09 15:08:41', '2025-12-09 15:08:41', 1);
+
+-- ----------------------------
+-- Table structure for attendance
+-- ----------------------------
+DROP TABLE IF EXISTS `attendance`;
+CREATE TABLE `attendance`  (
+  `id` int NOT NULL AUTO_INCREMENT,
+  `student_id` int NOT NULL,
+  `activity_id` int NOT NULL,
+  `time_in` timestamp NULL DEFAULT NULL,
+  `time_out` timestamp NULL DEFAULT NULL,
+  `status` enum('present','absent','late','excused') CHARACTER SET utf8mb4 COLLATE utf8mb4_general_ci NULL DEFAULT 'present',
+  `notes` text CHARACTER SET utf8mb4 COLLATE utf8mb4_general_ci NULL,
+  `created_at` timestamp NOT NULL DEFAULT current_timestamp(),
+  `updated_at` timestamp NOT NULL DEFAULT current_timestamp() ON UPDATE CURRENT_TIMESTAMP,
+  PRIMARY KEY (`id`) USING BTREE,
+  UNIQUE INDEX `unique_student_activity`(`student_id` ASC, `activity_id` ASC) USING BTREE,
+  INDEX `idx_student_id`(`student_id` ASC) USING BTREE,
+  INDEX `idx_activity_id`(`activity_id` ASC) USING BTREE,
+  INDEX `idx_time_in`(`time_in` ASC) USING BTREE,
+  INDEX `idx_status`(`status` ASC) USING BTREE,
+  INDEX `idx_created_at`(`created_at` ASC) USING BTREE,
+  CONSTRAINT `attendance_ibfk_1` FOREIGN KEY (`student_id`) REFERENCES `students` (`id`) ON DELETE CASCADE ON UPDATE CASCADE,
+  CONSTRAINT `attendance_ibfk_2` FOREIGN KEY (`activity_id`) REFERENCES `activities` (`id`) ON DELETE CASCADE ON UPDATE CASCADE
+) ENGINE = InnoDB AUTO_INCREMENT = 23 CHARACTER SET = utf8mb4 COLLATE = utf8mb4_general_ci ROW_FORMAT = DYNAMIC;
+
+-- ----------------------------
+-- Records of attendance
+-- ----------------------------
+INSERT INTO `attendance` VALUES (1, 1, 3, '2025-11-29 17:38:16', NULL, NULL, NULL, '2025-11-30 00:38:16', '2025-11-30 00:38:16');
+INSERT INTO `attendance` VALUES (2, 1, 5, '2025-12-07 21:38:06', '2025-12-07 21:56:47', 'present', NULL, '2025-12-07 21:38:06', '2025-12-07 21:56:47');
+INSERT INTO `attendance` VALUES (3, 4, 5, '2025-12-07 21:38:17', NULL, 'present', NULL, '2025-12-07 21:38:17', '2025-12-07 21:38:17');
+INSERT INTO `attendance` VALUES (4, 3, 5, '2025-12-07 21:38:27', NULL, 'present', NULL, '2025-12-07 21:38:27', '2025-12-07 21:38:27');
+INSERT INTO `attendance` VALUES (5, 2, 5, '2025-12-07 21:39:44', '2025-12-07 21:39:52', 'present', NULL, '2025-12-07 21:39:44', '2025-12-07 21:39:52');
+INSERT INTO `attendance` VALUES (6, 19, 5, '2025-12-07 21:51:04', NULL, 'present', NULL, '2025-12-07 21:51:04', '2025-12-07 21:51:04');
+INSERT INTO `attendance` VALUES (7, 17, 5, '2025-12-07 21:51:17', NULL, 'present', NULL, '2025-12-07 21:51:17', '2025-12-07 21:51:17');
+INSERT INTO `attendance` VALUES (8, 11, 5, '2025-12-07 21:51:30', NULL, 'present', NULL, '2025-12-07 21:51:30', '2025-12-07 21:51:30');
+INSERT INTO `attendance` VALUES (12, 4, 7, '2025-12-09 15:09:51', '2025-12-09 15:19:03', 'present', NULL, '2025-12-09 15:09:51', '2025-12-09 15:19:03');
+INSERT INTO `attendance` VALUES (13, 3, 7, '2025-12-09 15:12:04', '2025-12-09 15:18:15', 'present', NULL, '2025-12-09 15:12:04', '2025-12-09 15:18:15');
+INSERT INTO `attendance` VALUES (14, 9, 7, '2025-12-09 15:12:31', NULL, 'present', NULL, '2025-12-09 15:12:31', '2025-12-09 15:12:31');
+INSERT INTO `attendance` VALUES (15, 18, 7, '2025-12-09 15:12:48', NULL, 'present', NULL, '2025-12-09 15:12:48', '2025-12-09 15:12:48');
+INSERT INTO `attendance` VALUES (16, 5, 7, '2025-12-09 15:13:11', '2025-12-09 15:20:12', 'present', NULL, '2025-12-09 15:13:11', '2025-12-09 15:20:12');
+INSERT INTO `attendance` VALUES (17, 8, 7, '2025-12-09 15:13:34', '2025-12-09 15:20:57', 'present', NULL, '2025-12-09 15:13:34', '2025-12-09 15:20:57');
+INSERT INTO `attendance` VALUES (18, 15, 7, '2025-12-09 15:14:01', '2025-12-09 15:23:54', 'present', NULL, '2025-12-09 15:14:01', '2025-12-09 15:23:54');
+INSERT INTO `attendance` VALUES (19, 11, 7, '2025-12-09 15:14:22', '2025-12-09 15:18:18', 'present', NULL, '2025-12-09 15:14:22', '2025-12-09 15:18:18');
+INSERT INTO `attendance` VALUES (20, 1, 7, '2025-12-09 15:17:18', '2025-12-09 15:18:11', 'present', NULL, '2025-12-09 15:17:18', '2025-12-09 15:18:11');
+INSERT INTO `attendance` VALUES (21, 2, 7, '2025-12-09 15:18:23', NULL, 'present', NULL, '2025-12-09 15:18:23', '2025-12-09 15:18:23');
+INSERT INTO `attendance` VALUES (22, 6, 7, '2025-12-09 15:19:49', NULL, 'present', NULL, '2025-12-09 15:19:49', '2025-12-09 15:19:49');
+
+-- ----------------------------
+-- Table structure for attendance_logs
+-- ----------------------------
+DROP TABLE IF EXISTS `attendance_logs`;
+CREATE TABLE `attendance_logs`  (
+  `id` int NOT NULL AUTO_INCREMENT,
+  `attendance_id` int NOT NULL,
+  `action` enum('time_in','time_out','status_change','manual_entry') CHARACTER SET utf8mb4 COLLATE utf8mb4_general_ci NOT NULL,
+  `old_value` varchar(255) CHARACTER SET utf8mb4 COLLATE utf8mb4_general_ci NULL DEFAULT NULL,
+  `new_value` varchar(255) CHARACTER SET utf8mb4 COLLATE utf8mb4_general_ci NULL DEFAULT NULL,
+  `changed_by` int NOT NULL,
+  `changed_at` timestamp NOT NULL DEFAULT current_timestamp(),
+  `notes` text CHARACTER SET utf8mb4 COLLATE utf8mb4_general_ci NULL,
+  PRIMARY KEY (`id`) USING BTREE,
+  INDEX `idx_attendance_id`(`attendance_id` ASC) USING BTREE,
+  INDEX `idx_changed_by`(`changed_by` ASC) USING BTREE,
+  INDEX `idx_changed_at`(`changed_at` ASC) USING BTREE,
+  INDEX `idx_action`(`action` ASC) USING BTREE,
+  CONSTRAINT `attendance_logs_ibfk_1` FOREIGN KEY (`attendance_id`) REFERENCES `attendance` (`id`) ON DELETE CASCADE ON UPDATE CASCADE,
+  CONSTRAINT `attendance_logs_ibfk_2` FOREIGN KEY (`changed_by`) REFERENCES `users` (`id`) ON DELETE RESTRICT ON UPDATE CASCADE
+) ENGINE = InnoDB AUTO_INCREMENT = 32 CHARACTER SET = utf8mb4 COLLATE = utf8mb4_general_ci ROW_FORMAT = DYNAMIC;
+
+-- ----------------------------
+-- Records of attendance_logs
+-- ----------------------------
+INSERT INTO `attendance_logs` VALUES (1, 2, 'time_in', NULL, '2025-12-07 21:38:06', 1, '2025-12-07 21:38:06', 'Manual entry - time in');
+INSERT INTO `attendance_logs` VALUES (2, 3, 'time_in', NULL, '2025-12-07 21:38:17', 1, '2025-12-07 21:38:17', 'Manual entry - time in');
+INSERT INTO `attendance_logs` VALUES (3, 4, 'time_in', NULL, '2025-12-07 21:38:27', 1, '2025-12-07 21:38:27', 'Manual entry - time in');
+INSERT INTO `attendance_logs` VALUES (4, 5, 'time_in', NULL, '2025-12-07 21:39:44', 1, '2025-12-07 21:39:44', 'Manual entry - time in');
+INSERT INTO `attendance_logs` VALUES (5, 5, 'time_out', NULL, '2025-12-07 21:39:52', 1, '2025-12-07 21:39:52', 'Manual entry - time out');
+INSERT INTO `attendance_logs` VALUES (6, 6, 'time_in', NULL, '2025-12-07 21:51:04', 1, '2025-12-07 21:51:04', 'Manual entry - time in');
+INSERT INTO `attendance_logs` VALUES (7, 7, 'time_in', NULL, '2025-12-07 21:51:17', 1, '2025-12-07 21:51:17', 'Manual entry - time in');
+INSERT INTO `attendance_logs` VALUES (8, 8, 'time_in', NULL, '2025-12-07 21:51:30', 1, '2025-12-07 21:51:30', 'Manual entry - time in');
+INSERT INTO `attendance_logs` VALUES (9, 2, 'time_out', NULL, '2025-12-07 21:56:47', 1, '2025-12-07 21:56:47', 'Manual entry - time out');
+INSERT INTO `attendance_logs` VALUES (14, 12, 'time_in', NULL, '2025-12-09 15:09:51', 1, '2025-12-09 15:09:51', 'Manual entry - time in');
+INSERT INTO `attendance_logs` VALUES (15, 13, 'time_in', NULL, '2025-12-09 15:12:04', 1, '2025-12-09 15:12:04', 'Manual entry - time in');
+INSERT INTO `attendance_logs` VALUES (16, 14, 'time_in', NULL, '2025-12-09 15:12:31', 1, '2025-12-09 15:12:31', 'Manual entry - time in');
+INSERT INTO `attendance_logs` VALUES (17, 15, 'time_in', NULL, '2025-12-09 15:12:48', 1, '2025-12-09 15:12:48', 'Manual entry - time in');
+INSERT INTO `attendance_logs` VALUES (18, 16, 'time_in', NULL, '2025-12-09 15:13:11', 1, '2025-12-09 15:13:11', 'Manual entry - time in');
+INSERT INTO `attendance_logs` VALUES (19, 17, 'time_in', NULL, '2025-12-09 15:13:34', 1, '2025-12-09 15:13:34', 'Manual entry - time in');
+INSERT INTO `attendance_logs` VALUES (20, 18, 'time_in', NULL, '2025-12-09 15:14:01', 1, '2025-12-09 15:14:01', 'Manual entry - time in');
+INSERT INTO `attendance_logs` VALUES (21, 19, 'time_in', NULL, '2025-12-09 15:14:22', 1, '2025-12-09 15:14:22', 'Manual entry - time in');
+INSERT INTO `attendance_logs` VALUES (22, 20, 'time_in', NULL, '2025-12-09 15:17:18', 1, '2025-12-09 15:17:18', 'Manual entry - time in');
+INSERT INTO `attendance_logs` VALUES (23, 20, 'time_out', NULL, '2025-12-09 15:18:11', 1, '2025-12-09 15:18:11', 'Manual entry - time out');
+INSERT INTO `attendance_logs` VALUES (24, 13, 'time_out', NULL, '2025-12-09 15:18:15', 1, '2025-12-09 15:18:15', 'Manual entry - time out');
+INSERT INTO `attendance_logs` VALUES (25, 19, 'time_out', NULL, '2025-12-09 15:18:18', 1, '2025-12-09 15:18:18', 'Manual entry - time out');
+INSERT INTO `attendance_logs` VALUES (26, 21, 'time_in', NULL, '2025-12-09 15:18:23', 1, '2025-12-09 15:18:23', 'Manual entry - time in');
+INSERT INTO `attendance_logs` VALUES (27, 12, 'time_out', NULL, '2025-12-09 15:19:03', 1, '2025-12-09 15:19:03', 'Manual entry - time out');
+INSERT INTO `attendance_logs` VALUES (28, 22, 'time_in', NULL, '2025-12-09 15:19:49', 1, '2025-12-09 15:19:49', 'Manual entry - time in');
+INSERT INTO `attendance_logs` VALUES (29, 16, 'time_out', NULL, '2025-12-09 15:20:12', 1, '2025-12-09 15:20:12', 'Manual entry - time out');
+INSERT INTO `attendance_logs` VALUES (30, 17, 'time_out', NULL, '2025-12-09 15:20:57', 1, '2025-12-09 15:20:57', 'Manual entry - time out');
+INSERT INTO `attendance_logs` VALUES (31, 18, 'time_out', NULL, '2025-12-09 15:23:54', 1, '2025-12-09 15:23:54', 'Manual entry - time out');
+
+-- ----------------------------
+-- Table structure for attendance_records
+-- ----------------------------
+DROP TABLE IF EXISTS `attendance_records`;
+CREATE TABLE `attendance_records`  (
+  `id` int NOT NULL AUTO_INCREMENT,
+  `student_id` int NOT NULL,
+  `course_id` int NOT NULL,
+  `status` enum('present','late','absent') CHARACTER SET utf8mb4 COLLATE utf8mb4_general_ci NULL DEFAULT 'present',
+  `date_recorded` datetime NULL DEFAULT current_timestamp(),
+  `created_by` int NULL DEFAULT NULL,
+  `created_at` timestamp NOT NULL DEFAULT current_timestamp(),
+  PRIMARY KEY (`id`) USING BTREE,
+  INDEX `student_id`(`student_id` ASC) USING BTREE,
+  INDEX `course_id`(`course_id` ASC) USING BTREE,
+  INDEX `created_by`(`created_by` ASC) USING BTREE,
+  CONSTRAINT `attendance_records_ibfk_1` FOREIGN KEY (`student_id`) REFERENCES `students` (`id`) ON DELETE RESTRICT ON UPDATE RESTRICT,
+  CONSTRAINT `attendance_records_ibfk_2` FOREIGN KEY (`course_id`) REFERENCES `courses` (`id`) ON DELETE RESTRICT ON UPDATE RESTRICT,
+  CONSTRAINT `attendance_records_ibfk_3` FOREIGN KEY (`created_by`) REFERENCES `users` (`id`) ON DELETE RESTRICT ON UPDATE RESTRICT
+) ENGINE = InnoDB AUTO_INCREMENT = 3 CHARACTER SET = utf8mb4 COLLATE = utf8mb4_general_ci ROW_FORMAT = DYNAMIC;
+
+-- ----------------------------
+-- Records of attendance_records
+-- ----------------------------
+INSERT INTO `attendance_records` VALUES (1, 3, 1, 'present', '2025-12-01 08:39:10', 1, '2025-12-01 08:39:10');
+INSERT INTO `attendance_records` VALUES (2, 4, 1, 'present', '2025-12-01 08:40:49', 1, '2025-12-01 08:40:49');
+
+-- ----------------------------
+-- Table structure for courses
+-- ----------------------------
+DROP TABLE IF EXISTS `courses`;
+CREATE TABLE `courses`  (
+  `id` int NOT NULL AUTO_INCREMENT,
+  `code` varchar(10) CHARACTER SET utf8mb4 COLLATE utf8mb4_general_ci NOT NULL,
+  `name` varchar(100) CHARACTER SET utf8mb4 COLLATE utf8mb4_general_ci NOT NULL,
+  `description` text CHARACTER SET utf8mb4 COLLATE utf8mb4_general_ci NULL,
+  `department_id` int NOT NULL,
+  `duration_years` int NULL DEFAULT 4,
+  `created_at` timestamp NOT NULL DEFAULT current_timestamp(),
+  `updated_at` timestamp NOT NULL DEFAULT current_timestamp() ON UPDATE CURRENT_TIMESTAMP,
+  `status` tinyint NULL DEFAULT 1 COMMENT '1=Active, 0=Inactive',
+  PRIMARY KEY (`id`) USING BTREE,
+  UNIQUE INDEX `code`(`code` ASC) USING BTREE,
+  INDEX `idx_code`(`code` ASC) USING BTREE,
+  INDEX `idx_department_id`(`department_id` ASC) USING BTREE,
+  INDEX `idx_status`(`status` ASC) USING BTREE,
+  CONSTRAINT `courses_ibfk_1` FOREIGN KEY (`department_id`) REFERENCES `departments` (`id`) ON DELETE RESTRICT ON UPDATE CASCADE
+) ENGINE = InnoDB AUTO_INCREMENT = 10 CHARACTER SET = utf8mb4 COLLATE = utf8mb4_general_ci ROW_FORMAT = DYNAMIC;
+
+-- ----------------------------
+-- Records of courses
+-- ----------------------------
+INSERT INTO `courses` VALUES (1, 'BSIT', 'Bachelor of Science in Information Technology', 'Information Technology Program', 1, 4, '2025-11-28 14:43:00', '2025-11-29 23:16:51', 1);
+INSERT INTO `courses` VALUES (2, 'BSCS', 'Bachelor of Science in Computer Science', 'Computer Science Program', 1, 4, '2025-11-28 14:43:00', '2025-11-28 14:43:00', 1);
+INSERT INTO `courses` VALUES (3, 'BSACC', 'Bachelor of Science in Accountancy', 'Accountancy Program', 2, 4, '2025-11-28 14:43:00', '2025-11-28 14:43:00', 1);
+INSERT INTO `courses` VALUES (4, 'BSA', 'Bachelor of Science in Business Administration', 'Business Administration Program', 2, 4, '2025-11-28 14:43:00', '2025-11-28 14:43:00', 1);
+INSERT INTO `courses` VALUES (5, 'BSHM', 'Bachelor of Science in Hospitality Management', 'Hospitality Management Program', 2, 4, '2025-11-28 14:43:00', '2025-11-28 14:43:00', 1);
+INSERT INTO `courses` VALUES (6, 'BSTM', 'Bachelor of Science in Tourism Management', 'Tourism Management Program', 2, 4, '2025-11-28 14:43:00', '2025-11-28 14:43:00', 1);
+INSERT INTO `courses` VALUES (7, 'BSCE', 'Bachelor of Science in Civil Engineering', 'Civil Engineering Program', 4, 5, '2025-11-28 14:43:00', '2025-11-28 14:43:00', 1);
+INSERT INTO `courses` VALUES (8, 'BSEE', 'Bachelor of Science in Electrical Engineering', 'Electrical Engineering Program', 4, 5, '2025-11-28 14:43:00', '2025-11-28 14:43:00', 1);
+INSERT INTO `courses` VALUES (9, 'BSCRIM', 'Bachelor of Science in Criminology', 'Criminology Program', 5, 4, '2025-11-28 14:43:00', '2025-11-28 14:43:00', 1);
+
+-- ----------------------------
+-- Table structure for departments
+-- ----------------------------
+DROP TABLE IF EXISTS `departments`;
+CREATE TABLE `departments`  (
+  `id` int NOT NULL AUTO_INCREMENT,
+  `code` varchar(10) CHARACTER SET utf8mb4 COLLATE utf8mb4_general_ci NOT NULL,
+  `name` varchar(100) CHARACTER SET utf8mb4 COLLATE utf8mb4_general_ci NOT NULL,
+  `description` text CHARACTER SET utf8mb4 COLLATE utf8mb4_general_ci NULL,
+  `school_id` int NOT NULL,
+  `created_at` timestamp NOT NULL DEFAULT current_timestamp(),
+  `updated_at` timestamp NOT NULL DEFAULT current_timestamp() ON UPDATE CURRENT_TIMESTAMP,
+  `status` tinyint NULL DEFAULT 1 COMMENT '1=Active, 0=Inactive',
+  PRIMARY KEY (`id`) USING BTREE,
+  UNIQUE INDEX `code`(`code` ASC) USING BTREE,
+  INDEX `idx_code`(`code` ASC) USING BTREE,
+  INDEX `idx_school_id`(`school_id` ASC) USING BTREE,
+  INDEX `idx_status`(`status` ASC) USING BTREE,
+  CONSTRAINT `departments_ibfk_1` FOREIGN KEY (`school_id`) REFERENCES `schools` (`id`) ON DELETE RESTRICT ON UPDATE CASCADE
+) ENGINE = InnoDB AUTO_INCREMENT = 6 CHARACTER SET = utf8mb4 COLLATE = utf8mb4_general_ci ROW_FORMAT = DYNAMIC;
+
+-- ----------------------------
+-- Records of departments
+-- ----------------------------
+INSERT INTO `departments` VALUES (1, 'CASE', 'College of Arts, Sciences, Education & Information Technology', 'CASE Department', 1, '2025-11-28 14:43:00', '2025-11-28 14:43:00', 1);
+INSERT INTO `departments` VALUES (2, 'CBMA', 'College of Business, Management, and Accountancy', 'CBMA Department', 1, '2025-11-28 14:43:00', '2025-11-28 14:43:00', 1);
+INSERT INTO `departments` VALUES (3, 'SMS', 'School of Medical Sciences', 'Medical Sciences Department', 1, '2025-11-28 14:43:00', '2025-11-28 14:43:00', 1);
+INSERT INTO `departments` VALUES (4, 'CET', 'College of Engineering and Technology', 'Engineering Department', 1, '2025-11-28 14:43:00', '2025-11-28 14:43:00', 1);
+INSERT INTO `departments` VALUES (5, 'SOC', 'School of Criminology', 'Criminology Department', 1, '2025-11-28 14:43:00', '2025-11-28 14:43:00', 1);
+
+-- ----------------------------
+-- Table structure for genders
+-- ----------------------------
+DROP TABLE IF EXISTS `genders`;
+CREATE TABLE `genders`  (
+  `id` int NOT NULL AUTO_INCREMENT,
+  `code` varchar(1) CHARACTER SET utf8mb4 COLLATE utf8mb4_general_ci NOT NULL,
+  `name` varchar(10) CHARACTER SET utf8mb4 COLLATE utf8mb4_general_ci NOT NULL,
+  `created_at` timestamp NOT NULL DEFAULT current_timestamp(),
+  PRIMARY KEY (`id`) USING BTREE,
+  UNIQUE INDEX `code`(`code` ASC) USING BTREE,
+  INDEX `idx_code`(`code` ASC) USING BTREE
+) ENGINE = InnoDB AUTO_INCREMENT = 4 CHARACTER SET = utf8mb4 COLLATE = utf8mb4_general_ci ROW_FORMAT = DYNAMIC;
+
+-- ----------------------------
+-- Records of genders
+-- ----------------------------
+INSERT INTO `genders` VALUES (1, 'M', 'Male', '2025-11-28 14:43:00');
+INSERT INTO `genders` VALUES (2, 'F', 'Female', '2025-11-28 14:43:00');
+INSERT INTO `genders` VALUES (3, 'O', 'Others', '2025-11-28 14:43:00');
+
+-- ----------------------------
+-- Table structure for schools
+-- ----------------------------
+DROP TABLE IF EXISTS `schools`;
+CREATE TABLE `schools`  (
+  `id` int NOT NULL AUTO_INCREMENT,
+  `code` varchar(10) CHARACTER SET utf8mb4 COLLATE utf8mb4_general_ci NOT NULL,
+  `name` varchar(100) CHARACTER SET utf8mb4 COLLATE utf8mb4_general_ci NOT NULL,
+  `address` text CHARACTER SET utf8mb4 COLLATE utf8mb4_general_ci NULL,
+  `contact_number` varchar(20) CHARACTER SET utf8mb4 COLLATE utf8mb4_general_ci NULL DEFAULT NULL,
+  `email` varchar(100) CHARACTER SET utf8mb4 COLLATE utf8mb4_general_ci NULL DEFAULT NULL,
+  `created_at` timestamp NOT NULL DEFAULT current_timestamp(),
+  `updated_at` timestamp NOT NULL DEFAULT current_timestamp() ON UPDATE CURRENT_TIMESTAMP,
+  `status` tinyint NULL DEFAULT 1 COMMENT '1=Active, 0=Inactive',
+  PRIMARY KEY (`id`) USING BTREE,
+  UNIQUE INDEX `code`(`code` ASC) USING BTREE,
+  INDEX `idx_code`(`code` ASC) USING BTREE,
+  INDEX `idx_status`(`status` ASC) USING BTREE
+) ENGINE = InnoDB AUTO_INCREMENT = 5 CHARACTER SET = utf8mb4 COLLATE = utf8mb4_general_ci ROW_FORMAT = DYNAMIC;
+
+-- ----------------------------
+-- Records of schools
+-- ----------------------------
+INSERT INTO `schools` VALUES (1, 'AC', 'Aldersgate College', 'Burgos St., Brgy. Quirino, Solano, Nueva Vizcaya', '0912-345-6789', 'info@aldersgate.edu.ph', '2025-11-28 14:43:00', '2025-11-28 14:43:00', 1);
+
+-- ----------------------------
+-- Table structure for students
+-- ----------------------------
+DROP TABLE IF EXISTS `students`;
+CREATE TABLE `students`  (
+  `id` int NOT NULL AUTO_INCREMENT,
+  `student_id` varchar(20) CHARACTER SET utf8mb4 COLLATE utf8mb4_general_ci NOT NULL,
+  `qr_code` varchar(255) CHARACTER SET utf8mb4 COLLATE utf8mb4_general_ci NOT NULL,
+  `qr_code_image` varchar(255) CHARACTER SET utf8mb4 COLLATE utf8mb4_general_ci NULL DEFAULT NULL,
+  `picture_path` varchar(255) CHARACTER SET utf8mb4 COLLATE utf8mb4_general_ci NULL DEFAULT NULL,
+  `full_name` varchar(100) CHARACTER SET utf8mb4 COLLATE utf8mb4_general_ci NOT NULL,
+  `gender_id` int NOT NULL,
+  `year_level` int NOT NULL,
+  `course_id` int NOT NULL,
+  `department_id` int NOT NULL,
+  `school_id` int NOT NULL,
+  `birth_date` date NULL DEFAULT NULL,
+  `contact_number` varchar(20) CHARACTER SET utf8mb4 COLLATE utf8mb4_general_ci NULL DEFAULT NULL,
+  `email` varchar(100) CHARACTER SET utf8mb4 COLLATE utf8mb4_general_ci NULL DEFAULT NULL,
+  `address` text CHARACTER SET utf8mb4 COLLATE utf8mb4_general_ci NULL,
+  `created_at` timestamp NOT NULL DEFAULT current_timestamp(),
+  `updated_at` timestamp NOT NULL DEFAULT current_timestamp() ON UPDATE CURRENT_TIMESTAMP,
+  `status` tinyint NULL DEFAULT 1 COMMENT '1=Active, 0=Inactive',
+  PRIMARY KEY (`id`) USING BTREE,
+  UNIQUE INDEX `student_id`(`student_id` ASC) USING BTREE,
+  UNIQUE INDEX `qr_code`(`qr_code` ASC) USING BTREE,
+  INDEX `gender_id`(`gender_id` ASC) USING BTREE,
+  INDEX `idx_student_id`(`student_id` ASC) USING BTREE,
+  INDEX `idx_qr_code`(`qr_code` ASC) USING BTREE,
+  INDEX `idx_course_id`(`course_id` ASC) USING BTREE,
+  INDEX `idx_department_id`(`department_id` ASC) USING BTREE,
+  INDEX `idx_school_id`(`school_id` ASC) USING BTREE,
+  INDEX `idx_year_level`(`year_level` ASC) USING BTREE,
+  INDEX `idx_status`(`status` ASC) USING BTREE,
+  INDEX `idx_full_name`(`full_name` ASC) USING BTREE,
+  CONSTRAINT `students_ibfk_1` FOREIGN KEY (`gender_id`) REFERENCES `genders` (`id`) ON DELETE RESTRICT ON UPDATE CASCADE,
+  CONSTRAINT `students_ibfk_2` FOREIGN KEY (`course_id`) REFERENCES `courses` (`id`) ON DELETE RESTRICT ON UPDATE CASCADE,
+  CONSTRAINT `students_ibfk_3` FOREIGN KEY (`department_id`) REFERENCES `departments` (`id`) ON DELETE RESTRICT ON UPDATE CASCADE,
+  CONSTRAINT `students_ibfk_4` FOREIGN KEY (`school_id`) REFERENCES `schools` (`id`) ON DELETE RESTRICT ON UPDATE CASCADE
+) ENGINE = InnoDB AUTO_INCREMENT = 21 CHARACTER SET = utf8mb4 COLLATE = utf8mb4_general_ci ROW_FORMAT = DYNAMIC;
+
+-- ----------------------------
+-- Records of students
+-- ----------------------------
+INSERT INTO `students` VALUES (1, '23-0217', 'STU_23-0217_692b07dd55c31', NULL, '', 'John Lloyd Sumawang', 1, 3, 1, 1, 1, '2004-12-26', '095691555892', 'johnlloydsumawang@gmail.com', 'Bascaran, Solano, Nueva Vizcaya', '2025-11-29 22:49:01', '2025-12-08 19:27:18', 1);
+INSERT INTO `students` VALUES (2, '23-0403', 'STU_23-0403_692c3532235bc', NULL, '', 'Delight Grace Yogyog', 2, 3, 1, 1, 1, '2005-08-16', '', 'delightyogyog@gmail.com', '', '2025-11-30 20:14:42', '2025-12-08 19:27:55', 1);
+INSERT INTO `students` VALUES (3, '23-0072', 'STU_23-0072_692c356aef39a', NULL, '', 'Rozalia Jane Dekket', 2, 3, 1, 1, 1, '2004-10-17', '', 'RozaliaJaneDekket@gmail.com', 'Poblacion South, Solano, N.V', '2025-11-30 20:15:38', '2025-12-08 19:28:00', 1);
+INSERT INTO `students` VALUES (4, '23-0147', 'STU_23-0147_692ce2ea80975', NULL, '', 'Jelyn Marcos Monte', 2, 3, 1, 1, 1, '2004-01-21', '0967126375', 'jelynmonte@gmail.com', 'Solano, Nueva Vizcaya', '2025-12-01 08:35:54', '2025-12-08 19:28:05', 1);
+INSERT INTO `students` VALUES (5, '15-10187', 'STU_15-10187_692e9a3234f87', 'student_15-10187_1764693277.html', NULL, 'Jayster Rey Cabay', 1, 3, 1, 1, 1, '0000-00-00', '', '', '', '2025-12-02 15:50:10', '2025-12-03 00:34:37', 1);
+INSERT INTO `students` VALUES (6, '016-0097', 'STU_016-0097_692e9a9774dcc', NULL, NULL, 'John Learry Castro', 1, 3, 1, 1, 1, '0000-00-00', '', '', '', '2025-12-02 15:51:51', '2025-12-02 15:51:51', 1);
+INSERT INTO `students` VALUES (7, '22-0278', 'STU_22-0278_692e9ad319f7d', NULL, NULL, 'Mark Edrian Garica', 1, 3, 1, 1, 1, '0000-00-00', '', '', '', '2025-12-02 15:52:51', '2025-12-02 15:52:51', 1);
+INSERT INTO `students` VALUES (8, '22-20099', 'STU_22-20099_692e9b145d566', NULL, NULL, 'Jeon Jeon Jac', 1, 3, 1, 1, 1, '0000-00-00', '', '', '', '2025-12-02 15:53:56', '2025-12-02 15:53:56', 1);
+INSERT INTO `students` VALUES (9, '23-0241', 'STU_23-0241_692e9b5e33af7', NULL, NULL, 'Hercules Jon Honrales', 1, 3, 1, 1, 1, '0000-00-00', '', '', '', '2025-12-02 15:55:10', '2025-12-02 15:55:10', 1);
+INSERT INTO `students` VALUES (10, '20-10056', 'STU_20-10056_692e9be0ed5d2', NULL, NULL, 'Jan Mark Manuel', 1, 3, 1, 1, 1, '0000-00-00', '', '', '', '2025-12-02 15:57:20', '2025-12-02 15:57:20', 1);
+INSERT INTO `students` VALUES (11, '23-0250', 'STU_23-0250_692e9c361c836', NULL, NULL, 'John Carlo Marcelino', 1, 3, 1, 1, 1, '0000-00-00', '', '', '', '2025-12-02 15:58:46', '2025-12-02 15:58:46', 1);
+INSERT INTO `students` VALUES (12, '22-0496', 'STU_22-0496_692e9c71591fd', NULL, NULL, 'Kenn Charlee Martinez', 1, 3, 1, 1, 1, '0000-00-00', '', '', '', '2025-12-02 15:59:45', '2025-12-02 15:59:45', 1);
+INSERT INTO `students` VALUES (13, '23-0433', 'STU_23-0433_692e9cfe5cd6d', NULL, NULL, 'Melchor Paculla Jr.', 1, 3, 1, 1, 1, '0000-00-00', '', '', '', '2025-12-02 16:02:06', '2025-12-02 16:02:06', 1);
+INSERT INTO `students` VALUES (14, '016-0128', 'STU_016-0128_692e9d728aa84', NULL, NULL, 'Gregorio Ragasa', 1, 3, 1, 1, 1, '0000-00-00', '', '', '', '2025-12-02 16:04:02', '2025-12-02 16:04:02', 1);
+INSERT INTO `students` VALUES (15, '23-0203', 'STU_23-0203_692e9db4c726c', NULL, NULL, 'Cyruz Sibug', 1, 3, 1, 1, 1, '0000-00-00', '', '', '', '2025-12-02 16:05:08', '2025-12-02 16:05:08', 1);
+INSERT INTO `students` VALUES (16, '20-10492', 'STU_20-10492_692e9df4a5c5a', NULL, NULL, 'Jerald Solis', 1, 3, 1, 1, 1, '0000-00-00', '', '', '', '2025-12-02 16:06:12', '2025-12-02 16:06:12', 1);
+INSERT INTO `students` VALUES (17, '15-10131', 'STU_15-10131_692e9e2135b6a', 'student_15-10131_1764693193.html', NULL, 'Jolas Tucli', 1, 3, 1, 1, 1, '0000-00-00', '', '', '', '2025-12-02 16:06:57', '2025-12-03 00:33:13', 1);
+INSERT INTO `students` VALUES (18, '017-0104', 'STU_017-0104_692e9e4f41721', 'student_017-0104_1764692828.html', NULL, 'Jose Victor Uy', 1, 3, 1, 1, 1, '0000-00-00', '', '', '', '2025-12-02 16:07:43', '2025-12-03 00:27:08', 1);
+INSERT INTO `students` VALUES (19, '18-10147', 'STU_18-10147_692e9e91c98eb', 'student_18-10147_1764692769.html', NULL, 'Jameson Valera', 1, 3, 1, 1, 1, '0000-00-00', '', '', '', '2025-12-02 16:08:49', '2025-12-03 00:26:09', 1);
+
+-- ----------------------------
+-- Table structure for system_settings
+-- ----------------------------
+DROP TABLE IF EXISTS `system_settings`;
+CREATE TABLE `system_settings`  (
+  `id` int NOT NULL AUTO_INCREMENT,
+  `setting_key` varchar(50) CHARACTER SET utf8mb4 COLLATE utf8mb4_general_ci NOT NULL,
+  `setting_value` text CHARACTER SET utf8mb4 COLLATE utf8mb4_general_ci NULL,
+  `description` text CHARACTER SET utf8mb4 COLLATE utf8mb4_general_ci NULL,
+  `updated_by` int NULL DEFAULT NULL,
+  `updated_at` timestamp NOT NULL DEFAULT current_timestamp() ON UPDATE CURRENT_TIMESTAMP,
+  PRIMARY KEY (`id`) USING BTREE,
+  UNIQUE INDEX `setting_key`(`setting_key` ASC) USING BTREE,
+  INDEX `updated_by`(`updated_by` ASC) USING BTREE,
+  INDEX `idx_setting_key`(`setting_key` ASC) USING BTREE,
+  CONSTRAINT `system_settings_ibfk_1` FOREIGN KEY (`updated_by`) REFERENCES `users` (`id`) ON DELETE SET NULL ON UPDATE CASCADE
+) ENGINE = InnoDB AUTO_INCREMENT = 1 CHARACTER SET = utf8mb4 COLLATE = utf8mb4_general_ci ROW_FORMAT = DYNAMIC;
+
+-- ----------------------------
+-- Records of system_settings
+-- ----------------------------
+
+-- ----------------------------
+-- Table structure for users
+-- ----------------------------
+DROP TABLE IF EXISTS `users`;
+CREATE TABLE `users`  (
+  `id` int NOT NULL AUTO_INCREMENT,
+  `username` varchar(50) CHARACTER SET utf8mb4 COLLATE utf8mb4_general_ci NOT NULL,
+  `password` varchar(255) CHARACTER SET utf8mb4 COLLATE utf8mb4_general_ci NOT NULL,
+  `role` enum('admin','teacher') CHARACTER SET utf8mb4 COLLATE utf8mb4_general_ci NOT NULL,
+  `full_name` varchar(100) CHARACTER SET utf8mb4 COLLATE utf8mb4_general_ci NOT NULL,
+  `email` varchar(100) CHARACTER SET utf8mb4 COLLATE utf8mb4_general_ci NULL DEFAULT NULL,
+  `created_at` timestamp NOT NULL DEFAULT current_timestamp(),
+  `updated_at` timestamp NOT NULL DEFAULT current_timestamp() ON UPDATE CURRENT_TIMESTAMP,
+  `status` tinyint NULL DEFAULT 1 COMMENT '1=Active, 0=Inactive',
+  PRIMARY KEY (`id`) USING BTREE,
+  UNIQUE INDEX `username`(`username` ASC) USING BTREE,
+  INDEX `idx_username`(`username` ASC) USING BTREE,
+  INDEX `idx_role`(`role` ASC) USING BTREE,
+  INDEX `idx_status`(`status` ASC) USING BTREE
+) ENGINE = InnoDB AUTO_INCREMENT = 11 CHARACTER SET = utf8mb4 COLLATE = utf8mb4_general_ci ROW_FORMAT = DYNAMIC;
+
+-- ----------------------------
+-- Records of users
+-- ----------------------------
+INSERT INTO `users` VALUES (1, 'johnlloydsumawang26', '$2y$10$cH0FJuPLd467oX0q01ZADu6v2lh0kmfNob0HOyO5tuRstcdXBbIuS', 'admin', 'John Lloyd Sumawang', 'johnlloydsumawang@gmail.com', '2025-11-28 14:43:00', '2025-12-13 20:57:06', 1);
+INSERT INTO `users` VALUES (10, 'SPayDigong', '$2y$10$r02pNIERlJKRmrT6haCP8.YLpEAAEM0hTYRQnWpJ7ktZ6E6GRjQNq', 'admin', 'RODRIGO JR AMORIN', 'redgie@simc.gov.ph', '2025-12-13 20:35:31', '2025-12-13 20:35:40', 1);
+
+SET FOREIGN_KEY_CHECKS = 1;
diff --git a/src-backup/auth/login.php b/src-backup/auth/login.php
new file mode 100644
index 0000000..fcf4836
--- /dev/null
+++ b/src-backup/auth/login.php
@@ -0,0 +1,204 @@
+<?php
+require_once '../includes/config.php';
+
+// If already logged in, redirect to appropriate dashboard
+if (isset($_SESSION['logged_in']) && $_SESSION['logged_in'] === true) {
+    switch ($_SESSION['role']) {
+        case 'admin':
+            header('Location: ../admin/dashboard.php');
+            break;
+        case 'teacher':
+            header('Location: ../teacher/dashboard.php');
+            break;
+        default:
+            header('Location: ../index.php');
+    }
+    exit();
+}
+
+$error = '';
+
+if ($_SERVER['REQUEST_METHOD'] === 'POST') {
+    $username = trim($_POST['username'] ?? '');
+    $password = trim($_POST['password'] ?? '');
+    
+    if (!empty($username) && !empty($password)) {
+        // Check user in database
+        $username_escaped = escape($conn, $username);
+        $sql = "SELECT * FROM users WHERE username = '$username_escaped' AND status = 1 LIMIT 1";
+        $result = query($conn, $sql);
+        
+        if ($result && mysqli_num_rows($result) === 1) {
+            $user = mysqli_fetch_assoc($result);
+            
+            // Verify password (using password_verify if passwords are hashed)
+            if (password_verify($password, $user['password'])) {
+                // Set session variables
+                $_SESSION['user_id'] = $user['id'];
+                $_SESSION['username'] = $user['username'];
+                $_SESSION['role'] = $user['role'];
+                $_SESSION['full_name'] = $user['full_name'];
+                $_SESSION['logged_in'] = true;
+                
+                // Update last login
+                $update_sql = "UPDATE users SET updated_at = NOW() WHERE id = " . $user['id'];
+                query($conn, $update_sql);
+                
+                // Redirect based on role
+                switch ($user['role']) {
+                    case 'admin':
+                        header('Location: ../admin/dashboard.php');
+                        break;
+                    case 'teacher':
+                        header('Location: ../teacher/dashboard.php');
+                        break;
+                    default:
+                        header('Location: ../index.php');
+                }
+                exit();
+            } else {
+                $error = 'Invalid username or password';
+            }
+        } else {
+            $error = 'Invalid username or password';
+        }
+    } else {
+        $error = 'Please enter both username and password';
+    }
+}
+?>
+
+<!DOCTYPE html>
+<html lang="en">
+<head>
+    <meta charset="UTF-8">
+    <meta name="viewport" content="width=device-width, initial-scale=1.0">
+    <title>Login - QR Attendance System</title>
+    <link href="https://cdn.jsdelivr.net/npm/bootstrap@5.1.3/dist/css/bootstrap.min.css" rel="stylesheet">
+    <link rel="stylesheet" href="https://cdn.jsdelivr.net/npm/bootstrap-icons@1.8.1/font/bootstrap-icons.css">
+    <style>
+        body.login-page {
+            background: 
+                linear-gradient(rgba(22, 107, 14, 0.85), rgba(218, 230, 55, 0.85)),
+                url('../assets/images/ACbackground.png');
+            background-size: cover;
+            background-position: center;
+            height: 100vh;
+            display: flex;
+            align-items: center;
+            justify-content: center;
+        } 
+
+        
+        .login-card {
+            background: white;
+            border-radius: 15px;
+            box-shadow: 0 10px 30px rgba(0,0,0,0.2);
+            overflow: hidden;
+            max-width: 400px;
+            width: 100%;
+        }
+        
+        .login-header {
+            background: #166b0e;
+            color: white;
+            padding: 30px 20px;
+            text-align: center;
+        }
+        
+        .login-body {
+            padding: 30px;
+        }
+        
+        .form-control {
+            border-radius: 8px;
+            padding: 12px 15px;
+            border: 1px solid #dee2e6;
+        }
+        
+        .form-control:focus {
+            border-color: #667eea;
+            box-shadow: 0 0 0 0.2rem rgba(102, 126, 234, 0.25);
+        }
+        
+        .btn-login {
+            background: #166b0e;
+            border: none;
+            color: white;
+            padding: 12px;
+            border-radius: 8px;
+            font-weight: 500;
+            transition: all 0.3s;
+        }
+        
+        .btn-login:hover {
+            transform: translateY(-2px);
+            box-shadow: 0 5px 15px rgba(102, 126, 234, 0.4);
+        }
+        
+        .logo {
+            width: 80px;
+            height: 80px;
+            background: rgba(255,255,255,0.1);
+            border-radius: 50%;
+            display: flex;
+            align-items: center;
+            justify-content: center;
+            margin: 0 auto 15px;
+        }
+        
+        .logo i {
+            font-size: 2.5rem;
+        }
+    </style>
+</head>
+<body class="login-page">
+    <div class="login-card">
+        <div class="login-header">
+            <h5>Login</h5>
+        </div>
+        
+        <div class="login-body">
+            <?php if ($error): ?>
+                <div class="alert alert-danger alert-dismissible fade show" role="alert">
+                    <i class="bi bi-exclamation-triangle me-2"></i>
+                    <?php echo $error; ?>
+                    <button type="button" class="btn-close" data-bs-dismiss="alert"></button>
+                </div>
+            <?php endif; ?>
+            
+            <form method="POST" action="">
+                <div class="mb-3">
+                    <label for="username" class="form-label">
+                        <i class="bi bi-person me-1"></i> Username
+                    </label>
+                    <input type="text" class="form-control" id="username" name="username" 
+                           placeholder="Enter username" required autofocus>
+                </div>
+                
+                <div class="mb-4">
+                    <label for="password" class="form-label">
+                        <i class="bi bi-lock me-1"></i> Password
+                    </label>
+                    <input type="password" class="form-control" id="password" name="password" 
+                           placeholder="Enter password" required>
+                </div>
+                
+                <div class="d-grid mb-3">
+                    <button type="submit" class="btn btn-login">
+                        <i class="bi bi-box-arrow-in-right me-1"></i> Login
+                    </button>
+                </div>
+                
+                <div class="text-center">
+                    <small class="text-muted">
+                        <p>Programmed by: John Lloyd Sumawang</p>
+                    </small>
+                </div>
+            </form>
+        </div>
+    </div>
+    
+    <script src="https://cdn.jsdelivr.net/npm/bootstrap@5.1.3/dist/js/bootstrap.bundle.min.js"></script>
+</body>
+</html>
\ No newline at end of file
diff --git a/src-backup/auth/logout.php b/src-backup/auth/logout.php
new file mode 100644
index 0000000..64d242e
--- /dev/null
+++ b/src-backup/auth/logout.php
@@ -0,0 +1,6 @@
+<?php
+session_start();
+session_destroy();
+header('Location: login.php');
+exit();
+?>
\ No newline at end of file
diff --git a/src-backup/includes/auth.php b/src-backup/includes/auth.php
new file mode 100644
index 0000000..52fd034
--- /dev/null
+++ b/src-backup/includes/auth.php
@@ -0,0 +1,79 @@
+<?php
+require_once 'includes/database.php';
+
+class Auth {
+    private $db;
+    
+    public function __construct() {
+        global $db;
+        $this->db = $db;
+    }
+    
+    public function login($username, $password) {
+        $username = $this->db->escape($username);
+        
+        $sql = "SELECT * FROM users WHERE username = '$username' AND status = 1";
+        $result = $this->db->query($sql);
+        
+        if ($result->num_rows === 1) {
+            $user = $result->fetch_assoc();
+            
+            if (password_verify($password, $user['password'])) {
+                $_SESSION['user_id'] = $user['id'];
+                $_SESSION['username'] = $user['username'];
+                $_SESSION['role'] = $user['role'];
+                $_SESSION['full_name'] = $user['full_name'];
+                $_SESSION['logged_in'] = true;
+                
+                // Update last login
+                $update_sql = "UPDATE users SET updated_at = NOW() WHERE id = " . $user['id'];
+                $this->db->query($update_sql);
+                
+                return true;
+            }
+        }
+        
+        return false;
+    }
+    
+    public function logout() {
+        session_destroy();
+        header('Location: ../auth/login.php');
+        exit();
+    }
+    
+    public function isLoggedIn() {
+        return isset($_SESSION['logged_in']) && $_SESSION['logged_in'] === true;
+    }
+    
+    public function requireLogin() {
+        if (!$this->isLoggedIn()) {
+            header('Location: ../auth/login.php');
+            exit();
+        }
+    }
+    
+    public function requireRole($allowedRoles) {
+        $this->requireLogin();
+        
+        if (!in_array($_SESSION['role'], (array)$allowedRoles)) {
+            header('Location: ../dashboard.php');
+            exit();
+        }
+    }
+    
+    public function getCurrentUser() {
+        if ($this->isLoggedIn()) {
+            return [
+                'id' => $_SESSION['user_id'],
+                'username' => $_SESSION['username'],
+                'role' => $_SESSION['role'],
+                'full_name' => $_SESSION['full_name']
+            ];
+        }
+        return null;
+    }
+}
+
+$auth = new Auth();
+?>
\ No newline at end of file
diff --git a/src-backup/includes/config.php b/src-backup/includes/config.php
new file mode 100644
index 0000000..efd7fef
--- /dev/null
+++ b/src-backup/includes/config.php
@@ -0,0 +1,50 @@
+<?php
+session_start();
+
+// Database Configuration
+define('DB_HOST', getenv('DB_HOST') ?: '127.0.0.1');
+define('DB_USER', getenv('DB_USER') ?: 'root');
+define('DB_PASS', getenv('DB_PASS') !== false ? getenv('DB_PASS') : '');
+define('DB_NAME', getenv('DB_NAME') ?: 'attendance_system');
+
+// System Configuration
+define('SITE_NAME', 'QR Attendance System');
+define('SITE_URL', 'http://localhost/attendance_system/');
+define('TIMEZONE', 'Asia/Manila');
+
+// QR Code Configuration
+define('QR_VALIDITY_MINUTES', 30); // QR code validity period
+
+// Set timezone
+date_default_timezone_set(TIMEZONE);
+
+// Error reporting (disable in production)
+error_reporting(E_ALL);
+ini_set('display_errors', 1);
+
+// Create database connection
+$conn = mysqli_connect(DB_HOST, DB_USER, DB_PASS, DB_NAME);
+
+// Check connection
+if (!$conn) {
+    die("Database connection failed: " . mysqli_connect_error());
+}
+
+// Set charset
+mysqli_set_charset($conn, "utf8mb4");
+
+// Function to escape input
+function escape($conn, $value) {
+    return mysqli_real_escape_string($conn, $value);
+}
+
+// Function to execute query
+function query($conn, $sql) {
+    return mysqli_query($conn, $sql);
+}
+
+// Function to get last insert ID
+function getInsertId($conn) {
+    return mysqli_insert_id($conn);
+}
+?>
\ No newline at end of file
diff --git a/src-backup/includes/database.php b/src-backup/includes/database.php
new file mode 100644
index 0000000..a1cb0b5
--- /dev/null
+++ b/src-backup/includes/database.php
@@ -0,0 +1,38 @@
+<?php
+// Database configuration (use env vars for Docker)
+$host = getenv('DB_HOST') ?: '127.0.0.1';
+$dbname = getenv('DB_NAME') ?: 'attendance_system';
+$username = getenv('DB_USER') ?: 'root';
+$password = getenv('DB_PASS') !== false ? getenv('DB_PASS') : '';
+
+try {
+    // Create PDO connection
+    $pdo = new PDO(
+        "mysql:host=$host;dbname=$dbname;charset=utf8mb4",
+        $username,
+        $password,
+        [
+            PDO::ATTR_ERRMODE => PDO::ERRMODE_EXCEPTION,
+            PDO::ATTR_DEFAULT_FETCH_MODE => PDO::FETCH_ASSOC,
+            PDO::ATTR_EMULATE_PREPARES => false
+        ]
+    );
+    
+    // Optional: Set timezone
+    $pdo->exec("SET time_zone = '+08:00'");
+    
+    // Uncomment for debugging
+    // error_log("Database connected successfully");
+    
+} catch (PDOException $e) {
+    // Log the error and show user-friendly message
+    error_log("Database connection failed: " . $e->getMessage());
+    
+    // For development - show detailed error
+    if (isset($_SESSION['role']) && $_SESSION['role'] === 'admin') {
+        die("Database connection failed: " . $e->getMessage());
+    } else {
+        die("System temporarily unavailable. Please try again later.");
+    }
+}
+?>
\ No newline at end of file
diff --git a/src-backup/includes/footer.php b/src-backup/includes/footer.php
new file mode 100644
index 0000000..f0bcfb7
--- /dev/null
+++ b/src-backup/includes/footer.php
@@ -0,0 +1,95 @@
+            </div> <!-- End of content-wrapper -->
+            
+            <!-- Footer -->
+            <footer class="footer mt-auto py-3 bg-white border-top">
+                <div class="container-fluid">
+                    <div class="row align-items-center">
+                        <div class="col-md-6">
+                            <span class="text-muted">
+                                © <?php echo date('Y'); ?> Attendance Managament System | Programmed by John Lloyd Sumawang
+                            </span>
+                        </div>
+                        <div class="col-md-6 text-md-end">
+                            <span class="text-muted">
+                                <i class="bi bi-server me-1"></i> Server Time: <?php echo date('h:i:s A'); ?>
+                            </span>
+                        </div>
+                    </div>
+                </div>
+            </footer>
+        </main>
+    </div>
+    
+    <!-- JavaScript Libraries -->
+    <script src="https://code.jquery.com/jquery-3.6.0.min.js"></script>
+    <script src="https://cdn.jsdelivr.net/npm/bootstrap@5.1.3/dist/js/bootstrap.bundle.min.js"></script>
+    <script src="https://cdn.datatables.net/1.11.5/js/jquery.dataTables.min.js"></script>
+    <script src="https://cdn.datatables.net/1.11.5/js/dataTables.bootstrap5.min.js"></script>
+    
+    <script>
+    // Update current time
+    function updateCurrentTime() {
+        const now = new Date();
+        const timeString = now.toLocaleTimeString('en-US', { 
+            hour: '2-digit', 
+            minute: '2-digit',
+            second: '2-digit',
+            hour12: true 
+        });
+        document.getElementById('current-time').textContent = timeString;
+    }
+    
+    setInterval(updateCurrentTime, 1000);
+    
+    // Mobile sidebar toggle
+    document.getElementById('sidebarToggle').addEventListener('click', function() {
+        document.querySelector('.sidebar').classList.toggle('show');
+    });
+    
+    // Close sidebar when clicking outside on mobile
+    document.addEventListener('click', function(event) {
+        const sidebar = document.querySelector('.sidebar');
+        const toggleBtn = document.getElementById('sidebarToggle');
+        
+        if (window.innerWidth < 768 && 
+            !sidebar.contains(event.target) && 
+            !toggleBtn.contains(event.target) && 
+            sidebar.classList.contains('show')) {
+            sidebar.classList.remove('show');
+        }
+    });
+    
+    // Initialize tooltips
+    var tooltipTriggerList = [].slice.call(document.querySelectorAll('[data-bs-toggle="tooltip"]'));
+    var tooltipList = tooltipTriggerList.map(function (tooltipTriggerEl) {
+        return new bootstrap.Tooltip(tooltipTriggerEl);
+    });
+    
+    // Auto-dismiss alerts after 5 seconds
+    setTimeout(function() {
+        var alerts = document.querySelectorAll('.alert:not(.alert-permanent)');
+        alerts.forEach(function(alert) {
+            var bsAlert = new bootstrap.Alert(alert);
+            bsAlert.close();
+        });
+    }, 5000);
+    
+    // Add active class to current page in navigation
+    document.addEventListener('DOMContentLoaded', function() {
+        const currentPage = window.location.pathname.split('/').pop();
+        const navLinks = document.querySelectorAll('.nav-link');
+        
+        navLinks.forEach(link => {
+            if (link.getAttribute('href') === currentPage) {
+                link.classList.add('active');
+            }
+        });
+    });
+    </script>
+    
+    <!-- Page-specific scripts -->
+    <?php if (isset($page_scripts)): ?>
+        <?php echo $page_scripts; ?>
+    <?php endif; ?>
+</body>
+</html>
\ No newline at end of file
diff --git a/src-backup/includes/header.php b/src-backup/includes/header.php
new file mode 100644
index 0000000..8fc9def
--- /dev/null
+++ b/src-backup/includes/header.php
@@ -0,0 +1,531 @@
+<?php
+if (!isset($title)) {
+    $title = 'QR Attendance System';
+}
+?>
+<!DOCTYPE html>
+<html lang="en">
+<head>
+    <meta charset="UTF-8">
+    <meta name="viewport" content="width=device-width, initial-scale=1.0">
+    <title><?php echo $title; ?></title>
+    
+    <!-- Bootstrap 5 -->
+    <link href="https://cdn.jsdelivr.net/npm/bootstrap@5.1.3/dist/css/bootstrap.min.css" rel="stylesheet">
+    <!-- Bootstrap Icons -->
+    <link rel="stylesheet" href="https://cdn.jsdelivr.net/npm/bootstrap-icons@1.8.1/font/bootstrap-icons.css">
+    <!-- DataTables -->
+    <link rel="stylesheet" href="https://cdn.datatables.net/1.11.5/css/dataTables.bootstrap5.min.css">
+    
+    <style>
+        :root {
+            --primary: #549239;
+            --secondary: #504e2c;
+            --success: #27ae60;
+            --danger: #e74c3c;
+            --warning: #f39c12;
+            --light: #f8f9fa;
+            --dark: #343a40;
+        }
+        
+        body {
+            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
+            background-color: #f5f7fb;
+            color: #333333;
+            margin: 0;
+            padding: 0;
+            min-height: 100vh;
+        }
+        
+        /* Main container */
+        .main-container {
+            display: flex;
+            min-height: 100vh;
+        }
+        
+        /* Sidebar */
+        .sidebar {
+            width: 250px;
+            background: #37502c;
+            color: white;
+            transition: all 0.3s;
+            position: fixed;
+            height: 100vh;
+            overflow-y: auto;
+            z-index: 1000;
+        }
+        
+        .sidebar-header {
+            padding: 20px 15px;
+            background: rgba(255,255,255,0.1);
+            border-bottom: 1px solid rgba(255,255,255,0.1);
+        }
+        
+        .user-info {
+            text-align: center;
+            padding: 20px 10px;
+        }
+        
+        .user-avatar {
+            width: 80px;
+            height: 80px;
+            border-radius: 50%;
+            background: rgba(255,255,255,0.1);
+            display: flex;
+            align-items: center;
+            justify-content: center;
+            margin: 0 auto 15px;
+            border: 3px solid var(--primary);
+        }
+        
+        .user-avatar i {
+            font-size: 2.5rem;
+        }
+        
+        .sidebar .nav-link {
+            color: #b6c3b0;
+            padding: 12px 20px;
+            margin: 2px 10px;
+            border-radius: 8px;
+            transition: all 0.3s;
+            display: flex;
+            align-items: center;
+        }
+        
+        .sidebar .nav-link:hover {
+            color: white;
+            background: rgba(169, 219, 52, 0.2);
+            transform: translateX(5px);
+        }
+        
+        .sidebar .nav-link.active {
+            color: white;
+            background: var(--primary);
+            box-shadow: 0 4px 15px rgba(9, 109, 9, 0.4);
+        }
+        
+        .sidebar .nav-link i {
+            width: 25px;
+            font-size: 1.2rem;
+            margin-right: 10px;
+        }
+        
+        .sidebar .nav-item {
+            margin-bottom: 5px;
+        }
+        
+        /* Main content area */
+        .main-content {
+            flex: 1;
+            margin-left: 250px;
+            min-height: 100vh;
+            display: flex;
+            flex-direction: column;
+        }
+        
+        /* Top navbar */
+        .top-navbar {
+            background: white;
+            border-bottom: 1px solid #e3e6f0;
+            padding: 0.8rem 1.5rem;
+            box-shadow: 0 2px 10px rgba(0,0,0,0.05);
+            position: sticky;
+            top: 0;
+            z-index: 999;
+        }
+        
+        .navbar-brand {
+            color: var(--primary);
+            font-weight: 600;
+            font-size: 1.5rem;
+        }
+        
+        .time-display {
+            font-family: 'Courier New', monospace;
+            font-weight: 500;
+        }
+        
+        /* Content wrapper */
+        .content-wrapper {
+            flex: 1;
+            padding: 20px;
+            background: #f5f7fb;
+        }
+        
+        /* Cards */
+        .card {
+            border: none;
+            border-radius: 10px;
+            box-shadow: 0 5px 15px rgba(0,0,0,0.08);
+            margin-bottom: 20px;
+            transition: transform 0.3s;
+        }
+        
+        .card:hover {
+            transform: translateY(-5px);
+            box-shadow: 0 8px 25px rgba(0,0,0,0.12);
+        }
+        
+        .card-header {
+            background:#166b0e;
+            color: white;
+            border-radius: 10px 10px 0 0;
+            border: none;
+            padding: 15px 20px;
+        }
+        
+        .card-header h6 {
+            margin: 0;
+            font-weight: 600;
+            font-size: 1.1rem;
+        }
+        
+        /* Buttons */
+        .btn {
+            border-radius: 8px;
+            padding: 8px 20px;
+            font-weight: 500;
+            border: none;
+            transition: all 0.3s;
+        }
+        
+        .btn-primary {
+            background: #205e03;
+            border: none;
+        }
+        
+        .btn-primary:hover {
+            transform: translateY(-2px);
+            box-shadow: 0 5px 15px rgba(0, 0, 0, 0.2);
+        }
+        
+        /* Badges */
+        .badge {
+            padding: 6px 12px;
+            border-radius: 20px;
+            font-weight: 500;
+        }
+        
+        /* Tables */
+        .table {
+            background: white;
+            border-radius: 10px;
+            overflow: hidden;
+            box-shadow: 0 2px 10px rgba(0,0,0,0.05);
+        }
+        
+        .table thead th {
+            border-bottom: 2px solid #e3e6f0;
+            font-weight: 700;
+            color: var(--secondary);
+            background: #f8f9fa;
+            padding: 15px;
+        }
+        
+        .table tbody td {
+            padding: 12px 15px;
+            vertical-align: middle;
+        }
+        
+        .table tbody tr:hover {
+            background-color: rgba(155, 219, 52, 0.05);
+        }
+        
+        /* Form styles */
+        .form-control, .form-select {
+            border-radius: 8px;
+            padding: 10px 15px;
+            border: 1px solid #dee2e6;
+            transition: all 0.3s;
+        }
+        
+        .form-control:focus, .form-select:focus {
+            border-color: var(--primary);
+            box-shadow: 0 0 0 0.25rem rgba(155, 219, 52, 0.25);
+        }
+        
+        /* Modal styles */
+        .modal-content {
+            border-radius: 10px;
+            border: none;
+            box-shadow: 0 10px 30px rgba(0,0,0,0.1);
+        }
+        
+        .modal-header {
+            background: #56b32b;
+            color: white;
+            border-radius: 10px 10px 0 0;
+            padding: 15px 20px;
+        }
+        
+        /* Stats cards */
+        .stat-card {
+            border-left: 4px solid var(--primary);
+        }
+        
+        .stat-card .card-body {
+            padding: 20px;
+        }
+        
+        .stat-card i {
+            font-size: 2.5rem;
+            opacity: 0.8;
+        }
+        
+        /* Responsive adjustments */
+        @media (max-width: 768px) {
+            .sidebar {
+                margin-left: -250px;
+                position: fixed;
+                z-index: 1001;
+            }
+            
+            .sidebar.show {
+                margin-left: 0;
+            }
+            
+            .main-content {
+                margin-left: 0;
+            }
+            
+            .top-navbar {
+                padding: 0.8rem 1rem;
+            }
+        }
+        
+        /* Animation for alerts */
+        @keyframes fadeIn {
+            from { opacity: 0; transform: translateY(-10px); }
+            to { opacity: 1; transform: translateY(0); }
+        }
+        
+        .alert {
+            animation: fadeIn 0.3s ease-out;
+            border: none;
+            border-radius: 8px;
+        }
+        
+        /* Action buttons */
+        .action-buttons {
+            display: flex;
+            gap: 5px;
+        }
+        
+        .action-buttons .btn {
+            padding: 5px 10px;
+            font-size: 0.875rem;
+        }
+        
+        /* Status badges */
+        .status-active {
+            background-color: #d4edda;
+            color: #155724;
+        }
+        
+        .status-inactive {
+            background-color: #f8d7da;
+            color: #721c24;
+        }
+        
+        /* Search box */
+        .search-box {
+            position: relative;
+        }
+        
+        .search-box i {
+            position: absolute;
+            left: 15px;
+            top: 50%;
+            transform: translateY(-50%);
+            color: #6c757d;
+        }
+        
+        .search-box input {
+            padding-left: 40px;
+        }
+    </style>
+</head>
+<body>
+    <div class="main-container">
+        <!-- Sidebar -->
+        <aside class="sidebar">
+            <div class="sidebar-header">
+                <h4 class="text-center mb-0">
+                    <i class="bi bi-qr-code-scan me-2"></i>
+                    AMS
+                </h4>
+            </div>
+            
+            <!-- User Info -->
+            <div class="user-info">
+                <div class="user-avatar">
+                    <i class="bi bi-person-circle"></i>
+                </div>
+                <h5 class="mb-1"><?php echo htmlspecialchars($_SESSION['full_name'] ?? 'User'); ?></h5>
+                <small class="text-light">
+                    <?php 
+                    $role = $_SESSION['role'] ?? 'user';
+                    $role_badge = '';
+                    switch($role) {
+                        case 'admin': $role_badge = 'danger'; break;
+                        case 'teacher': $role_badge = 'success'; break;
+                        case 'student': $role_badge = 'info'; break;
+                        default: $role_badge = 'secondary';
+                    }
+                    ?>
+                    <span class="badge bg-<?php echo $role_badge; ?>">
+                        <?php echo ucfirst($role); ?>
+                    </span>
+                </small>
+            </div>
+            
+            <!-- Navigation -->
+            <div class="sidebar-nav px-2">
+                <ul class="nav flex-column">
+                    <?php if ($_SESSION['role'] === 'admin'): ?>
+                        <li class="nav-item">
+                            <a class="nav-link <?php echo basename($_SERVER['PHP_SELF']) == 'dashboard.php' ? 'active' : ''; ?>" href="dashboard.php">
+                                <i class="bi bi-speedometer2"></i> Dashboard
+                            </a>
+                        </li>
+                        <li class="nav-item">
+                            <a class="nav-link <?php echo basename($_SERVER['PHP_SELF']) == 'users.php' ? 'active' : ''; ?>" href="users.php">
+                                <i class="bi bi-people-fill"></i> User
+                            </a>
+                        </li>
+                        <li class="nav-item">
+                            <a class="nav-link <?php echo basename($_SERVER['PHP_SELF']) == 'manage_students.php' ? 'active' : ''; ?>" href="manage_students.php">
+                                <i class="bi bi-people"></i> Students
+                            </a>
+                        </li>
+                        <li class="nav-item">
+                            <a class="nav-link <?php echo basename($_SERVER['PHP_SELF']) == 'manage_activities.php' ? 'active' : ''; ?>" href="manage_activities.php">
+                                <i class="bi bi-calendar-event"></i> Activities
+                            </a>
+                        </li>
+                        <li class="nav-item">
+                            <a class="nav-link <?php echo basename($_SERVER['PHP_SELF']) == 'attendance.php' ? 'active' : ''; ?>" href="attendance.php">
+                                <i class="bi bi-qr-code-scan"></i> Scan QR
+                            </a>
+                        </li>
+                        <li class="nav-item">
+                            <a class="nav-link <?php echo basename($_SERVER['PHP_SELF']) == 'reports.php' ? 'active' : ''; ?>" href="reports.php">
+                                <i class="bi bi-file-earmark-text"></i> Reports
+                            </a>
+                        </li>
+                        
+                    <?php elseif ($_SESSION['role'] === 'teacher'): ?>
+                        <li class="nav-item">
+                            <a class="nav-link <?php echo basename($_SERVER['PHP_SELF']) == 'dashboard.php' ? 'active' : ''; ?>" href="dashboard.php">
+                                <i class="bi bi-speedometer2"></i> Dashboard
+                            </a>
+                        </li>
+                        <li class="nav-item">
+                            <a class="nav-link <?php echo basename($_SERVER['PHP_SELF']) == 'attendance.php' ? 'active' : ''; ?>" href="attendance.php">
+                                <i class="bi bi-qr-code-scan"></i> Take Attendance
+                            </a>
+                        </li>
+                        <li class="nav-item">
+                            <a class="nav-link <?php echo basename($_SERVER['PHP_SELF']) == 'reports.php' ? 'active' : ''; ?>" href="reports.php">
+                                <i class="bi bi-file-earmark-text"></i> Reports
+                            </a>
+                        </li>
+                        <li class="nav-item">
+                            <a class="nav-link <?php echo basename($_SERVER['PHP_SELF']) == 'activities.php' ? 'active' : ''; ?>" href="activities.php">
+                                <i class="bi bi-calendar-event"></i> My Activities
+                            </a>
+                        </li>
+                        
+                    <?php else: ?>
+                        <li class="nav-item">
+                            <a class="nav-link <?php echo basename($_SERVER['PHP_SELF']) == 'dashboard.php' ? 'active' : ''; ?>" href="dashboard.php">
+                                <i class="bi bi-speedometer2"></i> Dashboard
+                            </a>
+                        </li>
+                        <li class="nav-item">
+                            <a class="nav-link <?php echo basename($_SERVER['PHP_SELF']) == 'profile.php' ? 'active' : ''; ?>" href="profile.php">
+                                <i class="bi bi-person"></i> My Profile
+                            </a>
+                        </li>
+                        <li class="nav-item">
+                            <a class="nav-link <?php echo basename($_SERVER['PHP_SELF']) == 'attendance.php' ? 'active' : ''; ?>" href="attendance.php">
+                                <i class="bi bi-clock-history"></i> Attendance
+                            </a>
+                        </li>
+                        <li class="nav-item">
+                            <a class="nav-link <?php echo basename($_SERVER['PHP_SELF']) == 'qr_code.php' ? 'active' : ''; ?>" href="qr_code.php">
+                                <i class="bi bi-qr-code"></i> My QR Code
+                            </a>
+                        </li>
+                    <?php endif; ?>
+                </ul>
+                
+                <!-- Logout -->
+                <ul class="nav flex-column mt-4">
+                    <li class="nav-item">
+                        <a class="nav-link text-danger" href="../auth/logout.php">
+                            <i class="bi bi-box-arrow-right"></i> Logout
+                        </a>
+                    </li>
+                </ul>
+            </div>
+        </aside>
+        
+        <!-- Main Content -->
+        <main class="main-content">
+            <!-- Top Navbar -->
+            <nav class="top-navbar navbar navbar-expand-lg">
+                <div class="container-fluid">
+                    <!-- Mobile sidebar toggle -->
+                    <button class="btn btn-outline-primary d-md-none me-2" type="button" id="sidebarToggle">
+                        <i class="bi bi-list"></i>
+                    </button>
+                    
+                    <!-- Page title -->
+                    <span class="navbar-brand">
+                        <?php echo htmlspecialchars($title); ?>
+                    </span>
+                    
+                    <!-- Time and notifications -->
+                    <div class="d-flex align-items-center">
+                        <div class="time-display me-3">
+                            <i class="bi bi-clock me-1"></i>
+                            <span id="current-time"><?php echo date('h:i:s A'); ?></span>
+                        </div>
+                        <div class="date-display me-3">
+                            <i class="bi bi-calendar-check me-1"></i>
+                            <?php echo date('F j, Y'); ?>
+                        </div>
+                        <div class="dropdown">
+                            <button class="btn btn-outline-secondary dropdown-toggle" type="button" data-bs-toggle="dropdown">
+                                <i class="bi bi-gear"></i>
+                            </button>
+                            <ul class="dropdown-menu dropdown-menu-end">
+                                <li><a class="dropdown-item" href="profile.php"><i class="bi bi-person me-2"></i> Profile</a></li>
+                                <li><a class="dropdown-item" href="change_password.php"><i class="bi bi-lock me-2"></i> Change Password</a></li>
+                                <li><hr class="dropdown-divider"></li>
+                                <li><a class="dropdown-item text-danger" href="../auth/logout.php"><i class="bi bi-box-arrow-right me-2"></i> Logout</a></li>
+                            </ul>
+                        </div>
+                    </div>
+                </div>
+            </nav>
+            
+            <!-- Page Content -->
+            <div class="content-wrapper">
+                <!-- Content will be inserted here -->
+
+    <?php
+    // Check for session messages
+    if (isset($_SESSION['message'])) {
+        $message_type = $_SESSION['message_type'] ?? 'success';
+        ?>
+        <div class="alert alert-<?php echo $message_type; ?> alert-dismissible fade show" role="alert">
+            <?php echo $_SESSION['message']; ?>
+            <button type="button" class="btn-close" data-bs-dismiss="alert" aria-label="Close"></button>
+        </div>
+        <?php
+        unset($_SESSION['message']);
+        unset($_SESSION['message_type']);
+    }
+?>
diff --git a/src-backup/includes/phpqrcode/CHANGELOG b/src-backup/includes/phpqrcode/CHANGELOG
new file mode 100644
index 0000000..1088530
--- /dev/null
+++ b/src-backup/includes/phpqrcode/CHANGELOG
@@ -0,0 +1,38 @@
+* 1.0.0 build 2010031920 
+
+  - first public release
+  - help in readme, install
+  - cleanup ans separation of QRtools and QRspec
+  - now TCPDF binding requires minimal changes in TCPDF, having most of job
+    done in QRtools tcpdfBarcodeArray
+  - nicer QRtools::timeBenchmark output
+  - license and copyright notices in files
+  - indent cleanup - from tab to 4spc, keep it that way please :)
+  - sf project, repository, wiki
+  - simple code generator in index.php
+  
+* 1.1.0 build 2010032113
+
+  - added merge tool wich generate merged version of code
+    located in phpqrcode.php
+  - splited qrconst.php from qrlib.php
+  
+* 1.1.1 build 2010032405
+
+  - patch by Rick Seymour allowing saving PNG and displaying it at the same time
+  - added version info in VERSION file
+  - modified merge tool to include version info into generated file
+  - fixed e-mail in almost all head comments
+  
+* 1.1.2 build 2010032722
+
+  - full integration with TCPDF thanks to Nicola Asuni, it's author
+  - fixed bug with alphanumeric encoding detection
+  
+* 1.1.3 build 2010081807
+
+  - short opening tags replaced with standard ones
+  
+* 1.1.4 build 2010100721
+
+  - added missing static keyword QRinput::check (found by Luke Brookhart, Onjax LLC)
diff --git a/src-backup/includes/phpqrcode/INSTALL b/src-backup/includes/phpqrcode/INSTALL
new file mode 100644
index 0000000..eac6b07
--- /dev/null
+++ b/src-backup/includes/phpqrcode/INSTALL
@@ -0,0 +1,67 @@
+== REQUIREMENTS ==
+
+ * PHP5
+ * PHP GD2 extension with JPEG and PNG support
+ 
+== INSTALLATION ==
+
+If you want to recreate cache by yourself make sure cache directory is
+writable and you have permisions to write into it. Also make sure you are
+able to read files in it if you have cache option enabled
+ 
+== CONFIGURATION ==
+
+Feel free to modify config constants in qrconfig.php file. Read about it in
+provided comments and project wiki page (links in README file)
+
+== QUICK START ==
+
+Notice: probably you should'nt use all of this in same script :)
+
+<?phpb
+
+//include only that one, rest required files will be included from it
+include "qrlib.php"
+
+//write code into file, Error corection lecer is lowest, L (one form: L,M,Q,H)
+//each code square will be 4x4 pixels (4x zoom)
+//code will have 2 code squares white boundary around 
+
+QRcode::png('PHP QR Code :)', 'test.png', 'L', 4, 2);
+
+//same as above but outputs file directly into browser (with appr. header etc.)
+//all other settings are default
+//WARNING! it should be FIRST and ONLY output generated by script, otherwise
+//rest of output will land inside PNG binary, breaking it for sure
+QRcode::png('PHP QR Code :)');
+
+//show benchmark
+QRtools::timeBenchmark();
+
+//rebuild cache
+QRtools::buildCache();
+
+//code generated in text mode - as a binary table
+//then displayed out as HTML using Unicode block building chars :)
+$tab = $qr->encode('PHP QR Code :)');
+QRspec::debug($tab, true);
+
+== TCPDF INTEGRATION ==
+
+Inside bindings/tcpdf you will find slightly modified 2dbarcodes.php.
+Instal phpqrcode liblaty inside tcpdf folder, then overwrite (or merge)
+2dbarcodes.php 
+
+Then use similar as example #50 from TCPDF examples:
+
+<?php
+
+$style = array(
+    'border' => true,
+    'padding' => 4,
+    'fgcolor' => array(0,0,0),
+    'bgcolor' => false, //array(255,255,255)
+);
+
+//code name: QR, specify error correction level after semicolon (L,M,Q,H)
+$pdf->write2DBarcode('PHP QR Code :)', 'QR,L', '', '', 30, 30, $style, 'N');
diff --git a/src-backup/includes/phpqrcode/LICENSE b/src-backup/includes/phpqrcode/LICENSE
new file mode 100644
index 0000000..1883303
--- /dev/null
+++ b/src-backup/includes/phpqrcode/LICENSE
@@ -0,0 +1,165 @@
+                  GNU LESSER GENERAL PUBLIC LICENSE
+                       Version 3, 29 June 2007
+
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diff --git a/src-backup/includes/phpqrcode/README b/src-backup/includes/phpqrcode/README
new file mode 100644
index 0000000..a022fb5
--- /dev/null
+++ b/src-backup/includes/phpqrcode/README
@@ -0,0 +1,45 @@
+This is PHP implementation of QR Code 2-D barcode generator. It is pure-php
+LGPL-licensed implementation based on C libqrencode by Kentaro Fukuchi.
+
+== LICENSING ==
+
+Copyright (C) 2010 by Dominik Dzienia 
+
+This library is free software; you can redistribute it and/or modify it under
+the terms of the GNU Lesser General Public License as published by the Free
+Software Foundation; either version 3 of the License, or any later version.
+
+This library is distributed in the hope that it will be useful, but WITHOUT ANY
+WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A
+PARTICULAR PURPOSE. See the GNU Lesser General Public License (LICENSE file)
+for more details.
+
+You should have received a copy of the GNU Lesser General Public License along
+with this library; if not, write to the Free Software Foundation, Inc., 51
+Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
+
+== INSTALATION AND USAGE ==
+
+ * INSTALL file
+ * http://sourceforge.net/apps/mediawiki/phpqrcode/index.php?title=Main_Page
+
+== CONTACT ==
+
+Fell free to contact me via e-mail (deltalab at poczta dot fm) or using
+folowing project pages:
+
+ * http://sourceforge.net/projects/phpqrcode/
+ * http://phpqrcode.sourceforge.net/
+  
+== ACKNOWLEDGMENTS ==
+
+Based on C libqrencode library (ver. 3.1.1) 
+Copyright (C) 2006-2010 by Kentaro Fukuchi
+http://megaui.net/fukuchi/works/qrencode/index.en.html
+
+QR Code is registered trademarks of DENSO WAVE INCORPORATED in JAPAN and other
+countries.
+
+Reed-Solomon code encoder is written by Phil Karn, KA9Q.
+Copyright (C) 2002, 2003, 2004, 2006 Phil Karn, KA9Q
+ 
\ No newline at end of file
diff --git a/src-backup/includes/phpqrcode/VERSION b/src-backup/includes/phpqrcode/VERSION
new file mode 100644
index 0000000..9f99279
--- /dev/null
+++ b/src-backup/includes/phpqrcode/VERSION
@@ -0,0 +1,2 @@
+1.1.4
+2010100721
\ No newline at end of file
diff --git a/src-backup/includes/phpqrcode/bindings/tcpdf/qrcode.php b/src-backup/includes/phpqrcode/bindings/tcpdf/qrcode.php
new file mode 100644
index 0000000..7995460
--- /dev/null
+++ b/src-backup/includes/phpqrcode/bindings/tcpdf/qrcode.php
@@ -0,0 +1,2875 @@
+<?php
+//============================================================+
+// File name   : qrcode.php
+// Begin       : 2010-03-22
+// Last Update : 2010-03-29
+// Version     : 1.0.002
+// License     : GNU LGPL v.3 (http://www.gnu.org/copyleft/lesser.html)
+// 	----------------------------------------------------------------------------
+//
+// 	This library is free software; you can redistribute it and/or
+// 	modify it under the terms of the GNU Lesser General Public
+// 	License as published by the Free Software Foundation; either
+// 	version 3 of the License, or any later version.
+//
+// 	This library is distributed in the hope that it will be useful,
+// 	but WITHOUT ANY WARRANTY; without even the implied warranty of
+// 	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+// 	Lesser General Public License for more details.
+//
+// 	You should have received a copy of the GNU Lesser General Public
+// 	License along with this library; if not, write to the Free Software
+// 	Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
+//  or browse http://www.gnu.org/copyleft/lesser.html
+//
+//  ----------------------------------------------------------------------------
+//
+// DESCRIPTION :
+//
+// Class to create QR-code arrays for TCPDF class.
+// QR Code symbol is a 2D barcode that can be scanned by
+// handy terminals such as a mobile phone with CCD.
+// The capacity of QR Code is up to 7000 digits or 4000
+// characters, and has high robustness.
+// This class supports QR Code model 2, described in
+// JIS (Japanese Industrial Standards) X0510:2004
+// or ISO/IEC 18004.
+// Currently the following features are not supported:
+// ECI and FNC1 mode, Micro QR Code, QR Code model 1,
+// Structured mode.
+//
+// This class is derived from the following projects:
+// ---------------------------------------------------------
+// "PHP QR Code encoder"
+// License: GNU-LGPLv3
+// Copyright (C) 2010 by Dominik Dzienia <deltalab at poczta dot fm>
+// http://phpqrcode.sourceforge.net/
+// https://sourceforge.net/projects/phpqrcode/
+//
+// The "PHP QR Code encoder" is based on
+// "C libqrencode library" (ver. 3.1.1)
+// License: GNU-LGPL 2.1
+// Copyright (C) 2006-2010 by Kentaro Fukuchi
+// http://megaui.net/fukuchi/works/qrencode/index.en.html
+//
+// Reed-Solomon code encoder is written by Phil Karn, KA9Q.
+// Copyright (C) 2002-2006 Phil Karn, KA9Q
+//
+// QR Code is registered trademark of DENSO WAVE INCORPORATED
+// http://www.denso-wave.com/qrcode/index-e.html
+// ---------------------------------------------------------
+//
+// Author: Nicola Asuni
+//
+// (c) Copyright 2010:
+//               Nicola Asuni
+//               Tecnick.com S.r.l.
+//               Via della Pace, 11
+//               09044 Quartucciu (CA)
+//               ITALY
+//               www.tecnick.com
+//               info@tecnick.com
+//============================================================+
+
+/**
+ * Class to create QR-code arrays for TCPDF class.
+ * QR Code symbol is a 2D barcode that can be scanned by handy terminals such as a mobile phone with CCD.
+ * The capacity of QR Code is up to 7000 digits or 4000 characters, and has high robustness.
+ * This class supports QR Code model 2, described in JIS (Japanese Industrial Standards) X0510:2004 or ISO/IEC 18004.
+ * Currently the following features are not supported: ECI and FNC1 mode, Micro QR Code, QR Code model 1, Structured mode.
+ *
+ * This class is derived from "PHP QR Code encoder" by Dominik Dzienia (http://phpqrcode.sourceforge.net/) based on "libqrencode C library 3.1.1." by Kentaro Fukuchi (http://megaui.net/fukuchi/works/qrencode/index.en.html), contains Reed-Solomon code written by Phil Karn, KA9Q. QR Code is registered trademark of DENSO WAVE INCORPORATED (http://www.denso-wave.com/qrcode/index-e.html).
+ * Please read comments on this class source file for full copyright and license information.
+ *
+ * @package com.tecnick.tcpdf
+ * @abstract Class for generating QR-code array for TCPDF.
+ * @author Nicola Asuni
+ * @copyright 2010 Nicola Asuni - Tecnick.com S.r.l (www.tecnick.com) Via Della Pace, 11 - 09044 - Quartucciu (CA) - ITALY - www.tecnick.com - info@tecnick.com
+ * @link http://www.tcpdf.org
+ * @license http://www.gnu.org/copyleft/lesser.html LGPL
+ * @version 1.0.002
+ */
+
+// definitions
+if (!defined('QRCODEDEFS')) {
+
+	/**
+	 * Indicate that definitions for this class are set
+	 */
+	define('QRCODEDEFS', true);
+
+	// -----------------------------------------------------
+
+	// Encoding modes (characters which can be encoded in QRcode)
+
+	/**
+	 * Encoding mode
+	 */
+	define('QR_MODE_NL', -1);
+
+	/**
+	 * Encoding mode numeric (0-9). 3 characters are encoded to 10bit length. In theory, 7089 characters or less can be stored in a QRcode.
+	 */
+	define('QR_MODE_NM', 0);
+
+	/**
+	 * Encoding mode alphanumeric (0-9A-Z $%*+-./:) 45characters. 2 characters are encoded to 11bit length. In theory, 4296 characters or less can be stored in a QRcode.
+	 */
+	define('QR_MODE_AN', 1);
+
+	/**
+	 * Encoding mode 8bit byte data. In theory, 2953 characters or less can be stored in a QRcode.
+	 */
+	define('QR_MODE_8B', 2);
+
+	/**
+	 * Encoding mode KANJI. A KANJI character (multibyte character) is encoded to 13bit length. In theory, 1817 characters or less can be stored in a QRcode.
+	 */
+	define('QR_MODE_KJ', 3);
+
+	/**
+	 * Encoding mode STRUCTURED (currently unsupported)
+	 */
+	define('QR_MODE_ST', 4);
+
+	// -----------------------------------------------------
+
+	// Levels of error correction.
+	// QRcode has a function of an error correcting for miss reading that white is black.
+	// Error correcting is defined in 4 level as below.
+
+	/**
+	 * Error correction level L : About 7% or less errors can be corrected.
+	 */
+	define('QR_ECLEVEL_L', 0);
+
+	/**
+	 * Error correction level M : About 15% or less errors can be corrected.
+	 */
+	define('QR_ECLEVEL_M', 1);
+
+	/**
+	 * Error correction level Q : About 25% or less errors can be corrected.
+	 */
+	define('QR_ECLEVEL_Q', 2);
+
+	/**
+	 * Error correction level H : About 30% or less errors can be corrected.
+	 */
+	define('QR_ECLEVEL_H', 3);
+
+	// -----------------------------------------------------
+
+	// Version. Size of QRcode is defined as version.
+	// Version is from 1 to 40.
+	// Version 1 is 21*21 matrix. And 4 modules increases whenever 1 version increases.
+	// So version 40 is 177*177 matrix.
+
+	/**
+	 * Maximum QR Code version.
+	 */
+	define('QRSPEC_VERSION_MAX', 40);
+
+	/**
+	 * Maximum matrix size for maximum version (version 40 is 177*177 matrix).
+	 */
+    define('QRSPEC_WIDTH_MAX', 177);
+
+	// -----------------------------------------------------
+
+	/**
+	 * Matrix index to get width from $capacity array.
+	 */
+    define('QRCAP_WIDTH',    0);
+
+    /**
+	 * Matrix index to get number of words from $capacity array.
+	 */
+    define('QRCAP_WORDS',    1);
+
+    /**
+	 * Matrix index to get remainder from $capacity array.
+	 */
+    define('QRCAP_REMINDER', 2);
+
+    /**
+	 * Matrix index to get error correction level from $capacity array.
+	 */
+    define('QRCAP_EC',       3);
+
+	// -----------------------------------------------------
+
+	// Structure (currently usupported)
+
+	/**
+	 * Number of header bits for structured mode
+	 */
+    define('STRUCTURE_HEADER_BITS',  20);
+
+    /**
+	 * Max number of symbols for structured mode
+	 */
+    define('MAX_STRUCTURED_SYMBOLS', 16);
+
+	// -----------------------------------------------------
+
+    // Masks
+
+    /**
+	 * Down point base value for case 1 mask pattern (concatenation of same color in a line or a column)
+	 */
+    define('N1',  3);
+
+    /**
+	 * Down point base value for case 2 mask pattern (module block of same color)
+	 */
+	define('N2',  3);
+
+    /**
+	 * Down point base value for case 3 mask pattern (1:1:3:1:1(dark:bright:dark:bright:dark)pattern in a line or a column)
+	 */
+	define('N3', 40);
+
+    /**
+	 * Down point base value for case 4 mask pattern (ration of dark modules in whole)
+	 */
+	define('N4', 10);
+
+	// -----------------------------------------------------
+
+	// Optimization settings
+
+	/**
+	 * if true, estimates best mask (spec. default, but extremally slow; set to false to significant performance boost but (propably) worst quality code
+	 */
+	define('QR_FIND_BEST_MASK', true);
+
+	/**
+	 * if false, checks all masks available, otherwise value tells count of masks need to be checked, mask id are got randomly
+	 */
+	define('QR_FIND_FROM_RANDOM', 2);
+
+	/**
+	 * when QR_FIND_BEST_MASK === false
+	 */
+	define('QR_DEFAULT_MASK', 2);
+
+	// -----------------------------------------------------
+
+} // end of definitions
+
+// #*#*#*#*#*#*#*#*#*#*#*#*#*#*#*#*#*#*#*#*#*#*#*#*#*#*#*#*#
+
+if (!class_exists('QRcode', false)) {
+
+	// for compaibility with PHP4
+	if (!function_exists('str_split')) {
+    	/**
+    	 * Convert a string to an array (needed for PHP4 compatibility)
+    	 * @param string $string The input string.
+    	 * @param int $split_length Maximum length of the chunk.
+    	 * @return  If the optional split_length  parameter is specified, the returned array will be broken down into chunks with each being split_length  in length, otherwise each chunk will be one character in length. FALSE is returned if split_length is less than 1. If the split_length length exceeds the length of string , the entire string is returned as the first (and only) array element.
+    	 */
+		function str_split($string, $split_length=1) {
+			if ((strlen($string) > $split_length) OR (!$split_length)) {
+				do {
+					$c = strlen($string);
+					$parts[] = substr($string, 0, $split_length);
+					$string = substr($string, $split_length);
+				} while ($string !== false);
+			} else {
+				$parts = array($string);
+			}
+			return $parts;
+		}
+	}
+
+	// #####################################################
+
+	/**
+	 * Class to create QR-code arrays for TCPDF class.
+	 * QR Code symbol is a 2D barcode that can be scanned by handy terminals such as a mobile phone with CCD.
+	 * The capacity of QR Code is up to 7000 digits or 4000 characters, and has high robustness.
+	 * This class supports QR Code model 2, described in JIS (Japanese Industrial Standards) X0510:2004 or ISO/IEC 18004.
+	 * Currently the following features are not supported: ECI and FNC1 mode, Micro QR Code, QR Code model 1, Structured mode.
+	 *
+	 * This class is derived from "PHP QR Code encoder" by Dominik Dzienia (http://phpqrcode.sourceforge.net/) based on "libqrencode C library 3.1.1." by Kentaro Fukuchi (http://megaui.net/fukuchi/works/qrencode/index.en.html), contains Reed-Solomon code written by Phil Karn, KA9Q. QR Code is registered trademark of DENSO WAVE INCORPORATED (http://www.denso-wave.com/qrcode/index-e.html).
+	 * Please read comments on this class source file for full copyright and license information.
+	 *
+	 * @name QRcode
+	 * @package com.tecnick.tcpdf
+	 * @abstract Class for generating QR-code array for TCPDF.
+	 * @author Nicola Asuni
+	 * @copyright 2010 Nicola Asuni - Tecnick.com S.r.l (www.tecnick.com) Via Della Pace, 11 - 09044 - Quartucciu (CA) - ITALY - www.tecnick.com - info@tecnick.com
+	 * @link http://www.tcpdf.org
+	 * @license http://www.gnu.org/copyleft/lesser.html LGPL
+	 * @version 1.0.002
+	 */
+	class QRcode {
+
+		/**
+		 * @var barcode array to be returned which is readable by TCPDF
+		 * @access protected
+		 */
+		protected $barcode_array = array();
+
+		/**
+		 * @var QR code version. Size of QRcode is defined as version. Version is from 1 to 40. Version 1 is 21*21 matrix. And 4 modules increases whenever 1 version increases. So version 40 is 177*177 matrix.
+		 * @access protected
+		 */
+		protected $version = 0;
+
+		/**
+		 * @var Levels of error correction. See definitions for possible values.
+		 * @access protected
+		 */
+		protected $level = QR_ECLEVEL_L;
+
+		/**
+		 * @var Encoding mode
+		 * @access protected
+		 */
+		protected $hint = QR_MODE_8B;
+
+		/**
+		 * @var if true the input string will be converted to uppercase
+		 * @access protected
+		 */
+		protected $casesensitive = true;
+
+		/**
+		 * @var structured QR code (not supported yet)
+		 * @access protected
+		 */
+		protected $structured = 0;
+
+		/**
+		 * @var mask data
+		 * @access protected
+		 */
+		protected $data;
+
+		// FrameFiller
+
+		/**
+		 * @var width
+		 * @access protected
+		 */
+		protected $width;
+
+		/**
+		 * @var frame
+		 * @access protected
+		 */
+		protected $frame;
+
+		/**
+		 * @var X position of bit
+		 * @access protected
+		 */
+		protected $x;
+
+		/**
+		 * @var Y position of bit
+		 * @access protected
+		 */
+		protected $y;
+
+		/**
+		 * @var direction
+		 * @access protected
+		 */
+		protected $dir;
+
+		/**
+		 * @var single bit
+		 * @access protected
+		 */
+		protected $bit;
+
+		// ---- QRrawcode ----
+
+		/**
+		 * @var data code
+		 * @access protected
+		 */
+		protected $datacode = array();
+
+		/**
+		 * @var error correction code
+		 * @access protected
+		 */
+		protected $ecccode = array();
+
+		/**
+		 * @var blocks
+		 * @access protected
+		 */
+		protected $blocks;
+
+		/**
+		 * @var Reed-Solomon blocks
+		 * @access protected
+		 */
+		protected $rsblocks = array(); //of RSblock
+
+		/**
+		 * @var counter
+		 * @access protected
+		 */
+		protected $count;
+
+		/**
+		 * @var data length
+		 * @access protected
+		 */
+		protected $dataLength;
+
+		/**
+		 * @var error correction length
+		 * @access protected
+		 */
+		protected $eccLength;
+
+		/**
+		 * @var b1
+		 * @access protected
+		 */
+		protected $b1;
+
+		// ---- QRmask ----
+
+		/**
+		 * @var run length
+		 * @access protected
+		 */
+		protected $runLength = array();
+
+		// ---- QRsplit ----
+
+		/**
+		 * @var input data string
+		 * @access protected
+		 */
+		protected $dataStr = '';
+
+		/**
+		 * @var input items
+		 * @access protected
+		 */
+		protected $items;
+
+		// Reed-Solomon items
+
+		/**
+		 * @var Reed-Solomon items
+		 * @access protected
+		 */
+		protected $rsitems = array();
+
+		/**
+		 * @var array of frames
+		 * @access protected
+		 */
+		protected $frames = array();
+
+		/**
+		 * @var alphabet-numeric convesion table
+		 * @access protected
+		 */
+		protected $anTable = array(
+			-1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, //
+			-1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, //
+			36, -1, -1, -1, 37, 38, -1, -1, -1, -1, 39, 40, -1, 41, 42, 43, //
+			 0,  1,  2,  3,  4,  5,  6,  7,  8,  9, 44, -1, -1, -1, -1, -1, //
+			-1, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, //
+			25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, -1, -1, -1, -1, -1, //
+			-1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, //
+			-1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1  //
+			);
+
+		/**
+		 * @var array Table of the capacity of symbols
+		 * See Table 1 (pp.13) and Table 12-16 (pp.30-36), JIS X0510:2004.
+		 * @access protected
+		 */
+		protected $capacity = array(
+			array(  0,    0, 0, array(   0,    0,    0,    0)), //
+			array( 21,   26, 0, array(   7,   10,   13,   17)), //  1
+			array( 25,   44, 7, array(  10,   16,   22,   28)), //
+			array( 29,   70, 7, array(  15,   26,   36,   44)), //
+			array( 33,  100, 7, array(  20,   36,   52,   64)), //
+			array( 37,  134, 7, array(  26,   48,   72,   88)), //  5
+			array( 41,  172, 7, array(  36,   64,   96,  112)), //
+			array( 45,  196, 0, array(  40,   72,  108,  130)), //
+			array( 49,  242, 0, array(  48,   88,  132,  156)), //
+			array( 53,  292, 0, array(  60,  110,  160,  192)), //
+			array( 57,  346, 0, array(  72,  130,  192,  224)), // 10
+			array( 61,  404, 0, array(  80,  150,  224,  264)), //
+			array( 65,  466, 0, array(  96,  176,  260,  308)), //
+			array( 69,  532, 0, array( 104,  198,  288,  352)), //
+			array( 73,  581, 3, array( 120,  216,  320,  384)), //
+			array( 77,  655, 3, array( 132,  240,  360,  432)), // 15
+			array( 81,  733, 3, array( 144,  280,  408,  480)), //
+			array( 85,  815, 3, array( 168,  308,  448,  532)), //
+			array( 89,  901, 3, array( 180,  338,  504,  588)), //
+			array( 93,  991, 3, array( 196,  364,  546,  650)), //
+			array( 97, 1085, 3, array( 224,  416,  600,  700)), // 20
+			array(101, 1156, 4, array( 224,  442,  644,  750)), //
+			array(105, 1258, 4, array( 252,  476,  690,  816)), //
+			array(109, 1364, 4, array( 270,  504,  750,  900)), //
+			array(113, 1474, 4, array( 300,  560,  810,  960)), //
+			array(117, 1588, 4, array( 312,  588,  870, 1050)), // 25
+			array(121, 1706, 4, array( 336,  644,  952, 1110)), //
+			array(125, 1828, 4, array( 360,  700, 1020, 1200)), //
+			array(129, 1921, 3, array( 390,  728, 1050, 1260)), //
+			array(133, 2051, 3, array( 420,  784, 1140, 1350)), //
+			array(137, 2185, 3, array( 450,  812, 1200, 1440)), // 30
+			array(141, 2323, 3, array( 480,  868, 1290, 1530)), //
+			array(145, 2465, 3, array( 510,  924, 1350, 1620)), //
+			array(149, 2611, 3, array( 540,  980, 1440, 1710)), //
+			array(153, 2761, 3, array( 570, 1036, 1530, 1800)), //
+			array(157, 2876, 0, array( 570, 1064, 1590, 1890)), // 35
+			array(161, 3034, 0, array( 600, 1120, 1680, 1980)), //
+			array(165, 3196, 0, array( 630, 1204, 1770, 2100)), //
+			array(169, 3362, 0, array( 660, 1260, 1860, 2220)), //
+			array(173, 3532, 0, array( 720, 1316, 1950, 2310)), //
+			array(177, 3706, 0, array( 750, 1372, 2040, 2430))  // 40
+		);
+
+		/**
+		 * @var array Length indicator
+		 * @access protected
+		 */
+		protected $lengthTableBits = array(
+			array(10, 12, 14),
+			array( 9, 11, 13),
+			array( 8, 16, 16),
+			array( 8, 10, 12)
+		);
+
+		/**
+		 * @var array Table of the error correction code (Reed-Solomon block)
+		 * See Table 12-16 (pp.30-36), JIS X0510:2004.
+		 * @access protected
+		 */
+		protected $eccTable = array(
+			array(array( 0,  0), array( 0,  0), array( 0,  0), array( 0,  0)), //
+			array(array( 1,  0), array( 1,  0), array( 1,  0), array( 1,  0)), //  1
+			array(array( 1,  0), array( 1,  0), array( 1,  0), array( 1,  0)), //
+			array(array( 1,  0), array( 1,  0), array( 2,  0), array( 2,  0)), //
+			array(array( 1,  0), array( 2,  0), array( 2,  0), array( 4,  0)), //
+			array(array( 1,  0), array( 2,  0), array( 2,  2), array( 2,  2)), //  5
+			array(array( 2,  0), array( 4,  0), array( 4,  0), array( 4,  0)), //
+			array(array( 2,  0), array( 4,  0), array( 2,  4), array( 4,  1)), //
+			array(array( 2,  0), array( 2,  2), array( 4,  2), array( 4,  2)), //
+			array(array( 2,  0), array( 3,  2), array( 4,  4), array( 4,  4)), //
+			array(array( 2,  2), array( 4,  1), array( 6,  2), array( 6,  2)), // 10
+			array(array( 4,  0), array( 1,  4), array( 4,  4), array( 3,  8)), //
+			array(array( 2,  2), array( 6,  2), array( 4,  6), array( 7,  4)), //
+			array(array( 4,  0), array( 8,  1), array( 8,  4), array(12,  4)), //
+			array(array( 3,  1), array( 4,  5), array(11,  5), array(11,  5)), //
+			array(array( 5,  1), array( 5,  5), array( 5,  7), array(11,  7)), // 15
+			array(array( 5,  1), array( 7,  3), array(15,  2), array( 3, 13)), //
+			array(array( 1,  5), array(10,  1), array( 1, 15), array( 2, 17)), //
+			array(array( 5,  1), array( 9,  4), array(17,  1), array( 2, 19)), //
+			array(array( 3,  4), array( 3, 11), array(17,  4), array( 9, 16)), //
+			array(array( 3,  5), array( 3, 13), array(15,  5), array(15, 10)), // 20
+			array(array( 4,  4), array(17,  0), array(17,  6), array(19,  6)), //
+			array(array( 2,  7), array(17,  0), array( 7, 16), array(34,  0)), //
+			array(array( 4,  5), array( 4, 14), array(11, 14), array(16, 14)), //
+			array(array( 6,  4), array( 6, 14), array(11, 16), array(30,  2)), //
+			array(array( 8,  4), array( 8, 13), array( 7, 22), array(22, 13)), // 25
+			array(array(10,  2), array(19,  4), array(28,  6), array(33,  4)), //
+			array(array( 8,  4), array(22,  3), array( 8, 26), array(12, 28)), //
+			array(array( 3, 10), array( 3, 23), array( 4, 31), array(11, 31)), //
+			array(array( 7,  7), array(21,  7), array( 1, 37), array(19, 26)), //
+			array(array( 5, 10), array(19, 10), array(15, 25), array(23, 25)), // 30
+			array(array(13,  3), array( 2, 29), array(42,  1), array(23, 28)), //
+			array(array(17,  0), array(10, 23), array(10, 35), array(19, 35)), //
+			array(array(17,  1), array(14, 21), array(29, 19), array(11, 46)), //
+			array(array(13,  6), array(14, 23), array(44,  7), array(59,  1)), //
+			array(array(12,  7), array(12, 26), array(39, 14), array(22, 41)), // 35
+			array(array( 6, 14), array( 6, 34), array(46, 10), array( 2, 64)), //
+			array(array(17,  4), array(29, 14), array(49, 10), array(24, 46)), //
+			array(array( 4, 18), array(13, 32), array(48, 14), array(42, 32)), //
+			array(array(20,  4), array(40,  7), array(43, 22), array(10, 67)), //
+			array(array(19,  6), array(18, 31), array(34, 34), array(20, 61))  // 40
+		);
+
+		/**
+		 * @var array Positions of alignment patterns.
+		 * This array includes only the second and the third position of the alignment patterns. Rest of them can be calculated from the distance between them.
+		 * See Table 1 in Appendix E (pp.71) of JIS X0510:2004.
+		 * @access protected
+		 */
+		protected $alignmentPattern = array(
+			array( 0,  0),
+			array( 0,  0), array(18,  0), array(22,  0), array(26,  0), array(30,  0), //  1- 5
+			array(34,  0), array(22, 38), array(24, 42), array(26, 46), array(28, 50), //  6-10
+			array(30, 54), array(32, 58), array(34, 62), array(26, 46), array(26, 48), // 11-15
+			array(26, 50), array(30, 54), array(30, 56), array(30, 58), array(34, 62), // 16-20
+			array(28, 50), array(26, 50), array(30, 54), array(28, 54), array(32, 58), // 21-25
+			array(30, 58), array(34, 62), array(26, 50), array(30, 54), array(26, 52), // 26-30
+			array(30, 56), array(34, 60), array(30, 58), array(34, 62), array(30, 54), // 31-35
+			array(24, 50), array(28, 54), array(32, 58), array(26, 54), array(30, 58)  // 35-40
+		);
+
+		/**
+		 * @var array Version information pattern (BCH coded).
+		 * See Table 1 in Appendix D (pp.68) of JIS X0510:2004.
+		 * size: [QRSPEC_VERSION_MAX - 6]
+		 * @access protected
+		 */
+		protected $versionPattern = array(
+			0x07c94, 0x085bc, 0x09a99, 0x0a4d3, 0x0bbf6, 0x0c762, 0x0d847, 0x0e60d, //
+			0x0f928, 0x10b78, 0x1145d, 0x12a17, 0x13532, 0x149a6, 0x15683, 0x168c9, //
+			0x177ec, 0x18ec4, 0x191e1, 0x1afab, 0x1b08e, 0x1cc1a, 0x1d33f, 0x1ed75, //
+			0x1f250, 0x209d5, 0x216f0, 0x228ba, 0x2379f, 0x24b0b, 0x2542e, 0x26a64, //
+			0x27541, 0x28c69
+		);
+
+		/**
+		 * @var array Format information
+		 * @access protected
+		 */
+		protected $formatInfo = array(
+			array(0x77c4, 0x72f3, 0x7daa, 0x789d, 0x662f, 0x6318, 0x6c41, 0x6976), //
+			array(0x5412, 0x5125, 0x5e7c, 0x5b4b, 0x45f9, 0x40ce, 0x4f97, 0x4aa0), //
+			array(0x355f, 0x3068, 0x3f31, 0x3a06, 0x24b4, 0x2183, 0x2eda, 0x2bed), //
+			array(0x1689, 0x13be, 0x1ce7, 0x19d0, 0x0762, 0x0255, 0x0d0c, 0x083b)  //
+		);
+
+
+		// -------------------------------------------------
+		// -------------------------------------------------
+
+
+		/**
+		 * This is the class constructor.
+		 * Creates a QRcode object
+		 * @param string $code code to represent using QRcode
+		 * @param string $eclevel error level: <ul><li>L : About 7% or less errors can be corrected.</li><li>M : About 15% or less errors can be corrected.</li><li>Q : About 25% or less errors can be corrected.</li><li>H : About 30% or less errors can be corrected.</li></ul>
+		 * @access public
+		 * @since 1.0.000
+		 */
+		public function __construct($code, $eclevel = 'L') {
+			$barcode_array = array();
+			if ((is_null($code)) OR ($code == '\0') OR ($code == '')) {
+				return false;
+			}
+			// set error correction level
+			$this->level = array_search($eclevel, array('L', 'M', 'Q', 'H'));
+			if ($this->level === false) {
+				$this->level = QR_ECLEVEL_L;
+			}
+			if (($this->hint != QR_MODE_8B) AND ($this->hint != QR_MODE_KJ)) {
+				return false;
+			}
+			if (($this->version < 0) OR ($this->version > QRSPEC_VERSION_MAX)) {
+				return false;
+			}
+			$this->items = array();
+			$this->encodeString($code);
+			$qrTab = $this->binarize($this->data);
+			$size = count($qrTab);
+			$barcode_array['num_rows'] = $size;
+			$barcode_array['num_cols'] = $size;
+			$barcode_array['bcode'] = array();
+			foreach ($qrTab as $line) {
+				$arrAdd = array();
+				foreach (str_split($line) as $char) {
+					$arrAdd[] = ($char=='1')?1:0;
+				}
+				$barcode_array['bcode'][] = $arrAdd;
+			}
+			$this->barcode_array = $barcode_array;
+		}
+
+		/**
+		 * Returns a barcode array which is readable by TCPDF
+		 * @return array barcode array readable by TCPDF;
+		 * @access public
+		 */
+		public function getBarcodeArray() {
+			return $this->barcode_array;
+		}
+
+		/**
+		 * Convert the frame in binary form
+		 * @param array $frame array to binarize
+		 * @return array frame in binary form
+		 */
+		protected function binarize($frame) {
+			$len = count($frame);
+			// the frame is square (width = height)
+			foreach ($frame as &$frameLine) {
+				for ($i=0; $i<$len; $i++) {
+					$frameLine[$i] = (ord($frameLine[$i])&1)?'1':'0';
+				}
+			}
+			return $frame;
+		}
+
+		/**
+		 * Encode the input string to QR code
+		 * @param string $string input string to encode
+		 */
+		protected function encodeString($string) {
+			$this->dataStr = $string;
+			if (!$this->casesensitive) {
+				$this->toUpper();
+			}
+			$ret = $this->splitString();
+			if ($ret < 0) {
+				return NULL;
+			}
+			$this->encodeMask(-1);
+		}
+
+		/**
+		 * Encode mask
+		 * @param int $mask masking mode
+		 */
+		protected function encodeMask($mask) {
+			$spec = array(0, 0, 0, 0, 0);
+			$this->datacode = $this->getByteStream($this->items);
+			if (is_null($this->datacode)) {
+				return NULL;
+			}
+			$spec = $this->getEccSpec($this->version, $this->level, $spec);
+			$this->b1 = $this->rsBlockNum1($spec);
+			$this->dataLength = $this->rsDataLength($spec);
+			$this->eccLength = $this->rsEccLength($spec);
+			$this->ecccode = array_fill(0, $this->eccLength, 0);
+			$this->blocks = $this->rsBlockNum($spec);
+			$ret = $this->init($spec);
+			if ($ret < 0) {
+				return NULL;
+			}
+			$this->count = 0;
+			$this->width = $this->getWidth($this->version);
+			$this->frame = $this->newFrame($this->version);
+			$this->x = $this->width - 1;
+			$this->y = $this->width - 1;
+			$this->dir = -1;
+			$this->bit = -1;
+			// inteleaved data and ecc codes
+			for ($i=0; $i < ($this->dataLength + $this->eccLength); $i++) {
+				$code = $this->getCode();
+				$bit = 0x80;
+				for ($j=0; $j<8; $j++) {
+					$addr = $this->getNextPosition();
+					$this->setFrameAt($addr, 0x02 | (($bit & $code) != 0));
+					$bit = $bit >> 1;
+				}
+			}
+			// remainder bits
+			$j = $this->getRemainder($this->version);
+			for ($i=0; $i<$j; $i++) {
+				$addr = $this->getNextPosition();
+				$this->setFrameAt($addr, 0x02);
+			}
+			// masking
+			$this->runLength = array_fill(0, QRSPEC_WIDTH_MAX + 1, 0);
+			if ($mask < 0) {
+				if (QR_FIND_BEST_MASK) {
+					$masked = $this->mask($this->width, $this->frame, $this->level);
+				} else {
+					$masked = $this->makeMask($this->width, $this->frame, (intval(QR_DEFAULT_MASK) % 8), $this->level);
+				}
+			} else {
+				$masked = $this->makeMask($this->width, $this->frame, $mask, $this->level);
+			}
+			if ($masked == NULL) {
+				return NULL;
+			}
+			$this->data = $masked;
+		}
+
+		// - - - - - - - - - - - - - - - - - - - - - - - - -
+
+		// FrameFiller
+
+		/**
+		 * Set frame value at specified position
+		 * @param array $at x,y position
+		 * @param int $val value of the character to set
+		 */
+		protected function setFrameAt($at, $val) {
+			$this->frame[$at['y']][$at['x']] = chr($val);
+		}
+
+		/**
+		 * Get frame value at specified position
+		 * @param array $at x,y position
+		 * @return value at specified position
+		 */
+		protected function getFrameAt($at) {
+			return ord($this->frame[$at['y']][$at['x']]);
+		}
+
+		/**
+		 * Return the next frame position
+		 * @return array of x,y coordinates
+		 */
+		protected function getNextPosition() {
+			do {
+				if ($this->bit == -1) {
+					$this->bit = 0;
+					return array('x'=>$this->x, 'y'=>$this->y);
+				}
+				$x = $this->x;
+				$y = $this->y;
+				$w = $this->width;
+				if ($this->bit == 0) {
+					$x--;
+					$this->bit++;
+				} else {
+					$x++;
+					$y += $this->dir;
+					$this->bit--;
+				}
+				if ($this->dir < 0) {
+					if ($y < 0) {
+						$y = 0;
+						$x -= 2;
+						$this->dir = 1;
+						if ($x == 6) {
+							$x--;
+							$y = 9;
+						}
+					}
+				} else {
+					if ($y == $w) {
+						$y = $w - 1;
+						$x -= 2;
+						$this->dir = -1;
+						if ($x == 6) {
+							$x--;
+							$y -= 8;
+						}
+					}
+				}
+				if (($x < 0) OR ($y < 0)) {
+					return NULL;
+				}
+				$this->x = $x;
+				$this->y = $y;
+			} while(ord($this->frame[$y][$x]) & 0x80);
+			return array('x'=>$x, 'y'=>$y);
+		}
+
+		// - - - - - - - - - - - - - - - - - - - - - - - - -
+
+		// QRrawcode
+
+		/**
+		 * Initialize code.
+		 * @param array $spec array of ECC specification
+		 * @return 0 in case of success, -1 in case of error
+		 */
+		protected function init($spec) {
+			$dl = $this->rsDataCodes1($spec);
+			$el = $this->rsEccCodes1($spec);
+			$rs = $this->init_rs(8, 0x11d, 0, 1, $el, 255 - $dl - $el);
+			$blockNo = 0;
+			$dataPos = 0;
+			$eccPos = 0;
+			$endfor = $this->rsBlockNum1($spec);
+			for ($i=0; $i < $endfor; ++$i) {
+				$ecc = array_slice($this->ecccode, $eccPos);
+				$this->rsblocks[$blockNo] = array();
+				$this->rsblocks[$blockNo]['dataLength'] = $dl;
+				$this->rsblocks[$blockNo]['data'] = array_slice($this->datacode, $dataPos);
+				$this->rsblocks[$blockNo]['eccLength'] = $el;
+				$ecc = $this->encode_rs_char($rs, $this->rsblocks[$blockNo]['data'], $ecc);
+				$this->rsblocks[$blockNo]['ecc'] = $ecc;
+				$this->ecccode = array_merge(array_slice($this->ecccode,0, $eccPos), $ecc);
+				$dataPos += $dl;
+				$eccPos += $el;
+				$blockNo++;
+			}
+			if ($this->rsBlockNum2($spec) == 0) {
+				return 0;
+			}
+			$dl = $this->rsDataCodes2($spec);
+			$el = $this->rsEccCodes2($spec);
+			$rs = $this->init_rs(8, 0x11d, 0, 1, $el, 255 - $dl - $el);
+			if ($rs == NULL) {
+				return -1;
+			}
+			$endfor = $this->rsBlockNum2($spec);
+			for ($i=0; $i < $endfor; ++$i) {
+				$ecc = array_slice($this->ecccode, $eccPos);
+				$this->rsblocks[$blockNo] = array();
+				$this->rsblocks[$blockNo]['dataLength'] = $dl;
+				$this->rsblocks[$blockNo]['data'] = array_slice($this->datacode, $dataPos);
+				$this->rsblocks[$blockNo]['eccLength'] = $el;
+				$ecc = $this->encode_rs_char($rs, $this->rsblocks[$blockNo]['data'], $ecc);
+				$this->rsblocks[$blockNo]['ecc'] = $ecc;
+				$this->ecccode = array_merge(array_slice($this->ecccode, 0, $eccPos), $ecc);
+				$dataPos += $dl;
+				$eccPos += $el;
+				$blockNo++;
+			}
+			return 0;
+		}
+
+		/**
+		 * Return Reed-Solomon block code.
+		 * @return array rsblocks
+		 */
+		protected function getCode() {
+			if ($this->count < $this->dataLength) {
+				$row = $this->count % $this->blocks;
+				$col = $this->count / $this->blocks;
+				if ($col >= $this->rsblocks[0]['dataLength']) {
+					$row += $this->b1;
+				}
+				$ret = $this->rsblocks[$row]['data'][$col];
+			} elseif ($this->count < $this->dataLength + $this->eccLength) {
+				$row = ($this->count - $this->dataLength) % $this->blocks;
+				$col = ($this->count - $this->dataLength) / $this->blocks;
+				$ret = $this->rsblocks[$row]['ecc'][$col];
+			} else {
+				return 0;
+			}
+			$this->count++;
+			return $ret;
+		}
+
+		// - - - - - - - - - - - - - - - - - - - - - - - - -
+
+		// QRmask
+
+		/**
+		 * Write Format Information on frame and returns the number of black bits
+		 * @param int $width frame width
+		 * @param array $frame frame
+		 * @param array $mask masking mode
+		 * @param int $level error correction level
+		 * @return int blacks
+		 */
+		 protected function writeFormatInformation($width, &$frame, $mask, $level) {
+			$blacks = 0;
+			$format =  $this->getFormatInfo($mask, $level);
+			for ($i=0; $i<8; ++$i) {
+				if ($format & 1) {
+					$blacks += 2;
+					$v = 0x85;
+				} else {
+					$v = 0x84;
+				}
+				$frame[8][$width - 1 - $i] = chr($v);
+				if ($i < 6) {
+					$frame[$i][8] = chr($v);
+				} else {
+					$frame[$i + 1][8] = chr($v);
+				}
+				$format = $format >> 1;
+			}
+			for ($i=0; $i<7; ++$i) {
+			if ($format & 1) {
+				$blacks += 2;
+				$v = 0x85;
+			} else {
+				$v = 0x84;
+			}
+			$frame[$width - 7 + $i][8] = chr($v);
+			if ($i == 0) {
+				$frame[8][7] = chr($v);
+			} else {
+				$frame[8][6 - $i] = chr($v);
+			}
+			$format = $format >> 1;
+			}
+			return $blacks;
+		}
+
+		/**
+		 * mask0
+		 * @param int $x X position
+		 * @param int $y Y position
+		 * @return int mask
+		 */
+		 protected function mask0($x, $y) {
+			return ($x + $y) & 1;
+		}
+
+		/**
+		 * mask1
+		 * @param int $x X position
+		 * @param int $y Y position
+		 * @return int mask
+		 */
+		 protected function mask1($x, $y) {
+			return ($y & 1);
+		}
+
+		/**
+		 * mask2
+		 * @param int $x X position
+		 * @param int $y Y position
+		 * @return int mask
+		 */
+		 protected function mask2($x, $y) {
+			return ($x % 3);
+		}
+
+		/**
+		 * mask3
+		 * @param int $x X position
+		 * @param int $y Y position
+		 * @return int mask
+		 */
+		 protected function mask3($x, $y) {
+			return ($x + $y) % 3;
+		}
+
+		/**
+		 * mask4
+		 * @param int $x X position
+		 * @param int $y Y position
+		 * @return int mask
+		 */
+		 protected function mask4($x, $y) {
+			return (((int)($y / 2)) + ((int)($x / 3))) & 1;
+		}
+
+		/**
+		 * mask5
+		 * @param int $x X position
+		 * @param int $y Y position
+		 * @return int mask
+		 */
+		 protected function mask5($x, $y) {
+			return (($x * $y) & 1) + ($x * $y) % 3;
+		}
+
+		/**
+		 * mask6
+		 * @param int $x X position
+		 * @param int $y Y position
+		 * @return int mask
+		 */
+		 protected function mask6($x, $y) {
+			return ((($x * $y) & 1) + ($x * $y) % 3) & 1;
+		}
+
+		/**
+		 * mask7
+		 * @param int $x X position
+		 * @param int $y Y position
+		 * @return int mask
+		 */
+		 protected function mask7($x, $y) {
+			return ((($x * $y) % 3) + (($x + $y) & 1)) & 1;
+		}
+
+		/**
+		 * Return bitmask
+		 * @param int $maskNo mask number
+		 * @param int $width width
+		 * @param array $frame frame
+		 * @return array bitmask
+		 */
+		protected function generateMaskNo($maskNo, $width, $frame) {
+			$bitMask = array_fill(0, $width, array_fill(0, $width, 0));
+			for ($y=0; $y<$width; ++$y) {
+				for ($x=0; $x<$width; ++$x) {
+					if (ord($frame[$y][$x]) & 0x80) {
+						$bitMask[$y][$x] = 0;
+					} else {
+						$maskFunc = call_user_func(array($this, 'mask'.$maskNo), $x, $y);
+						$bitMask[$y][$x] = ($maskFunc == 0)?1:0;
+					}
+				}
+			}
+			return $bitMask;
+		}
+
+		/**
+		 * makeMaskNo
+		 * @param int $maskNo
+		 * @param int $width
+		 * @param int $s
+		 * @param int $d
+		 * @param boolean $maskGenOnly
+		 * @return int b
+		 */
+		 protected function makeMaskNo($maskNo, $width, $s, &$d, $maskGenOnly=false) {
+			$b = 0;
+			$bitMask = array();
+			$bitMask = $this->generateMaskNo($maskNo, $width, $s, $d);
+			if ($maskGenOnly) {
+				return;
+			}
+			$d = $s;
+			for ($y=0; $y<$width; ++$y) {
+				for ($x=0; $x<$width; ++$x) {
+					if ($bitMask[$y][$x] == 1) {
+						$d[$y][$x] = chr(ord($s[$y][$x]) ^ (int)$bitMask[$y][$x]);
+					}
+					$b += (int)(ord($d[$y][$x]) & 1);
+				}
+			}
+			return $b;
+		}
+
+		/**
+		 * makeMask
+		 * @param int $width
+		 * @param array $frame
+		 * @param int $maskNo
+		 * @param int $level
+		 * @return array mask
+		 */
+		 protected function makeMask($width, $frame, $maskNo, $level) {
+			$masked = array_fill(0, $width, str_repeat("\0", $width));
+			$this->makeMaskNo($maskNo, $width, $frame, $masked);
+			$this->writeFormatInformation($width, $masked, $maskNo, $level);
+			return $masked;
+		}
+
+		/**
+		 * calcN1N3
+		 * @param int $length
+		 * @return int demerit
+		 */
+		 protected function calcN1N3($length) {
+			$demerit = 0;
+			for ($i=0; $i<$length; ++$i) {
+				if ($this->runLength[$i] >= 5) {
+					$demerit += (N1 + ($this->runLength[$i] - 5));
+				}
+				if ($i & 1) {
+					if (($i >= 3) AND ($i < ($length-2)) AND ($this->runLength[$i] % 3 == 0)) {
+						$fact = (int)($this->runLength[$i] / 3);
+						if (($this->runLength[$i-2] == $fact)
+							AND ($this->runLength[$i-1] == $fact)
+							AND ($this->runLength[$i+1] == $fact)
+							AND ($this->runLength[$i+2] == $fact)) {
+							if (($this->runLength[$i-3] < 0) OR ($this->runLength[$i-3] >= (4 * $fact))) {
+								$demerit += N3;
+							} elseif ((($i+3) >= $length) OR ($this->runLength[$i+3] >= (4 * $fact))) {
+								$demerit += N3;
+							}
+						}
+					}
+				}
+			}
+			return $demerit;
+		}
+
+		/**
+		 * evaluateSymbol
+		 * @param int $width
+		 * @param array $frame
+		 * @return int demerit
+		 */
+		 protected function evaluateSymbol($width, $frame) {
+			$head = 0;
+			$demerit = 0;
+			for ($y=0; $y<$width; ++$y) {
+				$head = 0;
+				$this->runLength[0] = 1;
+				$frameY = $frame[$y];
+				if ($y > 0) {
+					$frameYM = $frame[$y-1];
+				}
+				for ($x=0; $x<$width; ++$x) {
+					if (($x > 0) AND ($y > 0)) {
+						$b22 = ord($frameY[$x]) & ord($frameY[$x-1]) & ord($frameYM[$x]) & ord($frameYM[$x-1]);
+						$w22 = ord($frameY[$x]) | ord($frameY[$x-1]) | ord($frameYM[$x]) | ord($frameYM[$x-1]);
+						if (($b22 | ($w22 ^ 1)) & 1) {
+							$demerit += N2;
+						}
+					}
+					if (($x == 0) AND (ord($frameY[$x]) & 1)) {
+						$this->runLength[0] = -1;
+						$head = 1;
+						$this->runLength[$head] = 1;
+					} elseif ($x > 0) {
+						if ((ord($frameY[$x]) ^ ord($frameY[$x-1])) & 1) {
+							$head++;
+							$this->runLength[$head] = 1;
+						} else {
+							$this->runLength[$head]++;
+						}
+					}
+				}
+				$demerit += $this->calcN1N3($head+1);
+			}
+			for ($x=0; $x<$width; ++$x) {
+				$head = 0;
+				$this->runLength[0] = 1;
+				for ($y=0; $y<$width; ++$y) {
+					if (($y == 0) AND (ord($frame[$y][$x]) & 1)) {
+						$this->runLength[0] = -1;
+						$head = 1;
+						$this->runLength[$head] = 1;
+					} elseif ($y > 0) {
+						if ((ord($frame[$y][$x]) ^ ord($frame[$y-1][$x])) & 1) {
+							$head++;
+							$this->runLength[$head] = 1;
+						} else {
+							$this->runLength[$head]++;
+						}
+					}
+				}
+				$demerit += $this->calcN1N3($head+1);
+			}
+			return $demerit;
+		}
+
+		/**
+		 * mask
+		 * @param int $width
+		 * @param array $frame
+		 * @param int $level
+		 * @return array best mask
+		 */
+		 protected function mask($width, $frame, $level) {
+			$minDemerit = PHP_INT_MAX;
+			$bestMaskNum = 0;
+			$bestMask = array();
+			$checked_masks = array(0, 1, 2, 3, 4, 5, 6, 7);
+			if (QR_FIND_FROM_RANDOM !== false) {
+				$howManuOut = 8 - (QR_FIND_FROM_RANDOM % 9);
+				for ($i = 0; $i <  $howManuOut; ++$i) {
+					$remPos = rand (0, count($checked_masks)-1);
+					unset($checked_masks[$remPos]);
+					$checked_masks = array_values($checked_masks);
+				}
+			}
+			$bestMask = $frame;
+			foreach ($checked_masks as $i) {
+				$mask = array_fill(0, $width, str_repeat("\0", $width));
+				$demerit = 0;
+				$blacks = 0;
+				$blacks  = $this->makeMaskNo($i, $width, $frame, $mask);
+				$blacks += $this->writeFormatInformation($width, $mask, $i, $level);
+				$blacks  = (int)(100 * $blacks / ($width * $width));
+				$demerit = (int)((int)(abs($blacks - 50) / 5) * N4);
+				$demerit += $this->evaluateSymbol($width, $mask);
+				if ($demerit < $minDemerit) {
+					$minDemerit = $demerit;
+					$bestMask = $mask;
+					$bestMaskNum = $i;
+				}
+			}
+			return $bestMask;
+		}
+
+		// - - - - - - - - - - - - - - - - - - - - - - - - -
+
+		// QRsplit
+
+		/**
+		 * Return true if the character at specified position is a number
+		 * @param string $str string
+		 * @param int $pos characted position
+		 * @return boolean true of false
+		 */
+		 protected function isdigitat($str, $pos) {
+			if ($pos >= strlen($str)) {
+				return false;
+			}
+			return ((ord($str[$pos]) >= ord('0'))&&(ord($str[$pos]) <= ord('9')));
+		}
+
+		/**
+		 * Return true if the character at specified position is an alphanumeric character
+		 * @param string $str string
+		 * @param int $pos characted position
+		 * @return boolean true of false
+		 */
+		 protected function isalnumat($str, $pos) {
+			if ($pos >= strlen($str)) {
+				return false;
+			}
+			return ($this->lookAnTable(ord($str[$pos])) >= 0);
+		}
+
+		/**
+		 * identifyMode
+		 * @param int $pos
+		 * @return int mode
+		 */
+		 protected function identifyMode($pos) {
+			if ($pos >= strlen($this->dataStr)) {
+				return QR_MODE_NL;
+			}
+			$c = $this->dataStr[$pos];
+			if ($this->isdigitat($this->dataStr, $pos)) {
+				return QR_MODE_NM;
+			} elseif ($this->isalnumat($this->dataStr, $pos)) {
+				return QR_MODE_AN;
+			} elseif ($this->hint == QR_MODE_KJ) {
+				if ($pos+1 < strlen($this->dataStr)) {
+					$d = $this->dataStr[$pos+1];
+					$word = (ord($c) << 8) | ord($d);
+					if (($word >= 0x8140 && $word <= 0x9ffc) OR ($word >= 0xe040 && $word <= 0xebbf)) {
+						return QR_MODE_KJ;
+					}
+				}
+			}
+			return QR_MODE_8B;
+		}
+
+		/**
+		 * eatNum
+		 * @return int run
+		 */
+		 protected function eatNum() {
+			$ln = $this->lengthIndicator(QR_MODE_NM, $this->version);
+			$p = 0;
+			while($this->isdigitat($this->dataStr, $p)) {
+				$p++;
+			}
+			$run = $p;
+			$mode = $this->identifyMode($p);
+			if ($mode == QR_MODE_8B) {
+				$dif = $this->estimateBitsModeNum($run) + 4 + $ln
+				+ $this->estimateBitsMode8(1)         // + 4 + l8
+				- $this->estimateBitsMode8($run + 1); // - 4 - l8
+				if ($dif > 0) {
+					return $this->eat8();
+				}
+			}
+			if ($mode == QR_MODE_AN) {
+				$dif = $this->estimateBitsModeNum($run) + 4 + $ln
+				+ $this->estimateBitsModeAn(1)        // + 4 + la
+				- $this->estimateBitsModeAn($run + 1);// - 4 - la
+				if ($dif > 0) {
+					return $this->eatAn();
+				}
+			}
+			$this->items = $this->appendNewInputItem($this->items, QR_MODE_NM, $run, str_split($this->dataStr));
+			return $run;
+		}
+
+		/**
+		 * eatAn
+		 * @return int run
+		 */
+		 protected function eatAn() {
+			$la = $this->lengthIndicator(QR_MODE_AN,  $this->version);
+			$ln = $this->lengthIndicator(QR_MODE_NM, $this->version);
+			$p = 0;
+			while($this->isalnumat($this->dataStr, $p)) {
+				if ($this->isdigitat($this->dataStr, $p)) {
+					$q = $p;
+					while($this->isdigitat($this->dataStr, $q)) {
+						$q++;
+					}
+					$dif = $this->estimateBitsModeAn($p) // + 4 + la
+					+ $this->estimateBitsModeNum($q - $p) + 4 + $ln
+					- $this->estimateBitsModeAn($q); // - 4 - la
+					if ($dif < 0) {
+						break;
+					} else {
+						$p = $q;
+					}
+				} else {
+					$p++;
+				}
+			}
+			$run = $p;
+			if (!$this->isalnumat($this->dataStr, $p)) {
+				$dif = $this->estimateBitsModeAn($run) + 4 + $la
+				+ $this->estimateBitsMode8(1) // + 4 + l8
+				- $this->estimateBitsMode8($run + 1); // - 4 - l8
+				if ($dif > 0) {
+					return $this->eat8();
+				}
+			}
+			$this->items = $this->appendNewInputItem($this->items, QR_MODE_AN, $run, str_split($this->dataStr));
+			return $run;
+		}
+
+		/**
+		 * eatKanji
+		 * @return int run
+		 */
+		 protected function eatKanji() {
+			$p = 0;
+			while($this->identifyMode($p) == QR_MODE_KJ) {
+				$p += 2;
+			}
+			$this->items = $this->appendNewInputItem($this->items, QR_MODE_KJ, $p, str_split($this->dataStr));
+			return $run;
+		}
+
+		/**
+		 * eat8
+		 * @return int run
+		 */
+		 protected function eat8() {
+			$la = $this->lengthIndicator(QR_MODE_AN, $this->version);
+			$ln = $this->lengthIndicator(QR_MODE_NM, $this->version);
+			$p = 1;
+			$dataStrLen = strlen($this->dataStr);
+			while($p < $dataStrLen) {
+				$mode = $this->identifyMode($p);
+				if ($mode == QR_MODE_KJ) {
+					break;
+				}
+				if ($mode == QR_MODE_NM) {
+					$q = $p;
+					while($this->isdigitat($this->dataStr, $q)) {
+						$q++;
+					}
+					$dif = $this->estimateBitsMode8($p) // + 4 + l8
+					+ $this->estimateBitsModeNum($q - $p) + 4 + $ln
+					- $this->estimateBitsMode8($q); // - 4 - l8
+					if ($dif < 0) {
+						break;
+					} else {
+						$p = $q;
+					}
+				} elseif ($mode == QR_MODE_AN) {
+					$q = $p;
+					while($this->isalnumat($this->dataStr, $q)) {
+						$q++;
+					}
+					$dif = $this->estimateBitsMode8($p)  // + 4 + l8
+					+ $this->estimateBitsModeAn($q - $p) + 4 + $la
+					- $this->estimateBitsMode8($q); // - 4 - l8
+					if ($dif < 0) {
+						break;
+					} else {
+						$p = $q;
+					}
+				} else {
+					$p++;
+				}
+			}
+			$run = $p;
+			$this->items = $this->appendNewInputItem($this->items, QR_MODE_8B, $run, str_split($this->dataStr));
+			return $run;
+		}
+
+		/**
+		 * splitString
+		 */
+		 protected function splitString() {
+			while (strlen($this->dataStr) > 0) {
+				if ($this->dataStr == '') {
+					return 0;
+				}
+				$mode = $this->identifyMode(0);
+				switch ($mode) {
+					case QR_MODE_NM: {
+						$length = $this->eatNum();
+						break;
+					}
+					case QR_MODE_AN: {
+						$length = $this->eatAn();
+						break;
+					}
+					case QR_MODE_KJ: {
+						if ($hint == QR_MODE_KJ) {
+							$length = $this->eatKanji();
+						} else {
+							$length = $this->eat8();
+						}
+						break;
+					}
+					default: {
+						$length = $this->eat8();
+						break;
+					}
+				}
+				if ($length == 0) {
+					return 0;
+				}
+				if ($length < 0) {
+					return -1;
+				}
+				$this->dataStr = substr($this->dataStr, $length);
+			}
+		}
+
+		/**
+		 * toUpper
+		 */
+		 protected function toUpper() {
+			$stringLen = strlen($this->dataStr);
+			$p = 0;
+			while ($p < $stringLen) {
+				$mode = $this->identifyMode(substr($this->dataStr, $p), $this->hint);
+				if ($mode == QR_MODE_KJ) {
+					$p += 2;
+				} else {
+					if ((ord($this->dataStr[$p]) >= ord('a')) AND (ord($this->dataStr[$p]) <= ord('z'))) {
+						$this->dataStr[$p] = chr(ord($this->dataStr[$p]) - 32);
+					}
+					$p++;
+				}
+			}
+			return $this->dataStr;
+		}
+
+		// - - - - - - - - - - - - - - - - - - - - - - - - -
+
+		// QRinputItem
+
+		/**
+		 * newInputItem
+		 * @param int $mode
+		 * @param int $size
+		 * @param array $data
+		 * @param array $bstream
+		 * @return array input item
+		 */
+		 protected function newInputItem($mode, $size, $data, $bstream=null) {
+			$setData = array_slice($data, 0, $size);
+			if (count($setData) < $size) {
+				$setData = array_merge($setData, array_fill(0, ($size - count($setData)), 0));
+			}
+			if (!$this->check($mode, $size, $setData)) {
+				return NULL;
+			}
+			$inputitem = array();
+			$inputitem['mode'] = $mode;
+			$inputitem['size'] = $size;
+			$inputitem['data'] = $setData;
+			$inputitem['bstream'] = $bstream;
+			return $inputitem;
+		}
+
+		/**
+		 * encodeModeNum
+		 * @param array $inputitem
+		 * @param int $version
+		 * @return array input item
+		 */
+		 protected function encodeModeNum($inputitem, $version) {
+			$words = (int)($inputitem['size'] / 3);
+			$inputitem['bstream'] = array();
+			$val = 0x1;
+			$inputitem['bstream'] = $this->appendNum($inputitem['bstream'], 4, $val);
+			$inputitem['bstream'] = $this->appendNum($inputitem['bstream'], $this->lengthIndicator(QR_MODE_NM, $version), $inputitem['size']);
+			for ($i=0; $i < $words; ++$i) {
+				$val  = (ord($inputitem['data'][$i*3  ]) - ord('0')) * 100;
+				$val += (ord($inputitem['data'][$i*3+1]) - ord('0')) * 10;
+				$val += (ord($inputitem['data'][$i*3+2]) - ord('0'));
+				$inputitem['bstream'] = $this->appendNum($inputitem['bstream'], 10, $val);
+			}
+			if ($inputitem['size'] - $words * 3 == 1) {
+				$val = ord($inputitem['data'][$words*3]) - ord('0');
+				$inputitem['bstream'] = $this->appendNum($inputitem['bstream'], 4, $val);
+			} elseif (($inputitem['size'] - ($words * 3)) == 2) {
+				$val  = (ord($inputitem['data'][$words*3  ]) - ord('0')) * 10;
+				$val += (ord($inputitem['data'][$words*3+1]) - ord('0'));
+				$inputitem['bstream'] = $this->appendNum($inputitem['bstream'], 7, $val);
+			}
+			return $inputitem;
+		}
+
+		/**
+		 * encodeModeAn
+		 * @param array $inputitem
+		 * @param int $version
+		 * @return array input item
+		 */
+		 protected function encodeModeAn($inputitem, $version) {
+			$words = (int)($inputitem['size'] / 2);
+			$inputitem['bstream'] = array();
+			$inputitem['bstream'] = $this->appendNum($inputitem['bstream'], 4, 0x02);
+			$inputitem['bstream'] = $this->appendNum(v, $this->lengthIndicator(QR_MODE_AN, $version), $inputitem['size']);
+			for ($i=0; $i < $words; ++$i) {
+				$val  = (int)$this->lookAnTable(ord($inputitem['data'][$i*2  ])) * 45;
+				$val += (int)$this->lookAnTable(ord($inputitem['data'][$i*2+1]));
+				$inputitem['bstream'] = $this->appendNum($inputitem['bstream'], 11, $val);
+			}
+			if ($inputitem['size'] & 1) {
+				$val = $this->lookAnTable(ord($inputitem['data'][($words * 2)]));
+				$inputitem['bstream'] = $this->appendNum($inputitem['bstream'], 6, $val);
+			}
+			return $inputitem;
+		}
+
+		/**
+		 * encodeMode8
+		 * @param array $inputitem
+		 * @param int $version
+		 * @return array input item
+		 */
+		 protected function encodeMode8($inputitem, $version) {
+			$inputitem['bstream'] = array();
+			$inputitem['bstream'] = $this->appendNum($inputitem['bstream'], 4, 0x4);
+			$inputitem['bstream'] = $this->appendNum($inputitem['bstream'], $this->lengthIndicator(QR_MODE_8B, $version), $inputitem['size']);
+			for ($i=0; $i < $inputitem['size']; ++$i) {
+				$inputitem['bstream'] = $this->appendNum($inputitem['bstream'], 8, ord($inputitem['data'][$i]));
+			}
+			return $inputitem;
+		}
+
+		/**
+		 * encodeModeKanji
+		 * @param array $inputitem
+		 * @param int $version
+		 * @return array input item
+		 */
+		 protected function encodeModeKanji($inputitem, $version) {
+			$inputitem['bstream'] = array();
+			$inputitem['bstream'] = $this->appendNum($inputitem['bstream'], 4, 0x8);
+			$inputitem['bstream'] = $this->appendNum($inputitem['bstream'], $this->lengthIndicator(QR_MODE_KJ, $version), (int)($inputitem['size'] / 2));
+			for ($i=0; $i<$inputitem['size']; $i+=2) {
+				$val = (ord($inputitem['data'][$i]) << 8) | ord($inputitem['data'][$i+1]);
+				if ($val <= 0x9ffc) {
+					$val -= 0x8140;
+				} else {
+					$val -= 0xc140;
+				}
+				$h = ($val >> 8) * 0xc0;
+				$val = ($val & 0xff) + $h;
+				$inputitem['bstream'] = $this->appendNum($inputitem['bstream'], 13, $val);
+			}
+			return $inputitem;
+		}
+
+		/**
+		 * encodeModeStructure
+		 * @param array $inputitem
+		 * @return array input item
+		 */
+		 protected function encodeModeStructure($inputitem) {
+			$inputitem['bstream'] = array();
+			$inputitem['bstream'] = $this->appendNum($inputitem['bstream'], 4, 0x03);
+			$inputitem['bstream'] = $this->appendNum($inputitem['bstream'], 4, ord($inputitem['data'][1]) - 1);
+			$inputitem['bstream'] = $this->appendNum($inputitem['bstream'], 4, ord($inputitem['data'][0]) - 1);
+			$inputitem['bstream'] = $this->appendNum($inputitem['bstream'], 8, ord($inputitem['data'][2]));
+			return $inputitem;
+		}
+
+		/**
+		 * encodeBitStream
+		 * @param array $inputitem
+		 * @param int $version
+		 * @return array input item
+		 */
+		 protected function encodeBitStream($inputitem, $version) {
+			$inputitem['bstream'] = array();
+			$words = $this->maximumWords($inputitem['mode'], $version);
+			if ($inputitem['size'] > $words) {
+				$st1 = $this->newInputItem($inputitem['mode'], $words, $inputitem['data']);
+				$st2 = $this->newInputItem($inputitem['mode'], $inputitem['size'] - $words, array_slice($inputitem['data'], $words));
+				$st1 = $this->encodeBitStream($st1, $version);
+				$st2 = $this->encodeBitStream($st2, $version);
+				$inputitem['bstream'] = array();
+				$inputitem['bstream'] = $this->appendBitstream($inputitem['bstream'], $st1['bstream']);
+				$inputitem['bstream'] = $this->appendBitstream($inputitem['bstream'], $st2['bstream']);
+			} else {
+				switch($inputitem['mode']) {
+					case QR_MODE_NM: {
+						$inputitem = $this->encodeModeNum($inputitem, $version);
+						break;
+					}
+					case QR_MODE_AN: {
+						$inputitem = $this->encodeModeAn($inputitem, $version);
+						break;
+					}
+					case QR_MODE_8B: {
+						$inputitem = $this->encodeMode8($inputitem, $version);
+						break;
+					}
+					case QR_MODE_KJ: {
+						$inputitem = $this->encodeModeKanji($inputitem, $version);
+						break;
+					}
+					case QR_MODE_ST: {
+						$inputitem = $this->encodeModeStructure($inputitem);
+						break;
+					}
+					default: {
+						break;
+					}
+				}
+			}
+			return $inputitem;
+		}
+
+		// - - - - - - - - - - - - - - - - - - - - - - - - -
+
+		// QRinput
+
+		/**
+		 * Append data to an input object.
+		 * The data is copied and appended to the input object.
+		 * @param array items input items
+		 * @param int $mode encoding mode.
+		 * @param int $size size of data (byte).
+		 * @param array $data array of input data.
+		 * @return items
+		 *
+		 */
+		protected function appendNewInputItem($items, $mode, $size, $data) {
+			$items[] = $this->newInputItem($mode, $size, $data);
+			return $items;
+		}
+
+		/**
+		 * insertStructuredAppendHeader
+		 * @param array $items
+		 * @param int $size
+		 * @param int $index
+		 * @param int $parity
+		 * @return array items
+		 */
+		 protected function insertStructuredAppendHeader($items, $size, $index, $parity) {
+			if ($size > MAX_STRUCTURED_SYMBOLS) {
+				return -1;
+			}
+			if (($index <= 0) OR ($index > MAX_STRUCTURED_SYMBOLS)) {
+				return -1;
+			}
+			$buf = array($size, $index, $parity);
+			$entry = $this->newInputItem(QR_MODE_ST, 3, buf);
+			array_unshift($items, $entry);
+			return $items;
+		}
+
+		/**
+		 * calcParity
+		 * @param array $items
+		 * @return int parity
+		 */
+		 protected function calcParity($items) {
+			$parity = 0;
+			foreach ($items as $item) {
+				if ($item['mode'] != QR_MODE_ST) {
+					for ($i=$item['size']-1; $i>=0; --$i) {
+						$parity ^= $item['data'][$i];
+					}
+				}
+			}
+			return $parity;
+		}
+
+		/**
+		 * checkModeNum
+		 * @param int $size
+		 * @param array $data
+		 * @return boolean true or false
+		 */
+		 protected function checkModeNum($size, $data) {
+			for ($i=0; $i<$size; ++$i) {
+				if ((ord($data[$i]) < ord('0')) OR (ord($data[$i]) > ord('9'))){
+					return false;
+				}
+			}
+			return true;
+		}
+
+		/**
+		 * estimateBitsModeNum
+		 * @param int $size
+		 * @return int number of bits
+		 */
+		 protected function estimateBitsModeNum($size) {
+			$w = (int)$size / 3;
+			$bits = $w * 10;
+			switch($size - $w * 3) {
+				case 1: {
+					$bits += 4;
+					break;
+				}
+				case 2: {
+					$bits += 7;
+					break;
+				}
+				default: {
+					break;
+				}
+			}
+			return $bits;
+		}
+
+		/**
+		 * Look up the alphabet-numeric convesion table (see JIS X0510:2004, pp.19).
+		 * @param int $c character value
+		 * @return value
+		 */
+		protected function lookAnTable($c) {
+			return (($c > 127)?-1:$this->anTable[$c]);
+		}
+
+		/**
+		 * checkModeAn
+		 * @param int $size
+		 * @param array $data
+		 * @return boolean true or false
+		 */
+		 protected function checkModeAn($size, $data) {
+			for ($i=0; $i<$size; ++$i) {
+				if ($this->lookAnTable(ord($data[$i])) == -1) {
+					return false;
+				}
+			}
+			return true;
+		}
+
+		/**
+		 * estimateBitsModeAn
+		 * @param int $size
+		 * @return int number of bits
+		 */
+		 protected function estimateBitsModeAn($size) {
+			$w = (int)($size / 2);
+			$bits = $w * 11;
+			if ($size & 1) {
+				$bits += 6;
+			}
+			return $bits;
+		}
+
+		/**
+		 * estimateBitsMode8
+		 * @param int $size
+		 * @return int number of bits
+		 */
+		 protected function estimateBitsMode8($size) {
+			return $size * 8;
+		}
+
+		/**
+		 * estimateBitsModeKanji
+		 * @param int $size
+		 * @return int number of bits
+		 */
+		 protected function estimateBitsModeKanji($size) {
+			return (int)(($size / 2) * 13);
+		}
+
+		/**
+		 * checkModeKanji
+		 * @param int $size
+		 * @param array $data
+		 * @return boolean true or false
+		 */
+		 protected function checkModeKanji($size, $data) {
+			if ($size & 1) {
+				return false;
+			}
+			for ($i=0; $i<$size; $i+=2) {
+				$val = (ord($data[$i]) << 8) | ord($data[$i+1]);
+				if (($val < 0x8140) OR (($val > 0x9ffc) AND ($val < 0xe040)) OR ($val > 0xebbf)) {
+					return false;
+				}
+			}
+			return true;
+		}
+
+		/**
+		 * Validate the input data.
+		 * @param int $mode encoding mode.
+		 * @param int $size size of data (byte).
+		 * @param array data data to validate
+		 * @return boolean true in case of valid data, false otherwise
+		 */
+		protected function check($mode, $size, $data) {
+			if ($size <= 0) {
+				return false;
+			}
+			switch($mode) {
+				case QR_MODE_NM: {
+					return $this->checkModeNum($size, $data);
+				}
+				case QR_MODE_AN: {
+					return $this->checkModeAn($size, $data);
+				}
+				case QR_MODE_KJ: {
+					return $this->checkModeKanji($size, $data);
+				}
+				case QR_MODE_8B: {
+					return true;
+				}
+				case QR_MODE_ST: {
+					return true;
+				}
+				default: {
+					break;
+				}
+			}
+			return false;
+		}
+
+		/**
+		 * estimateBitStreamSize
+		 * @param array $items
+		 * @param int $version
+		 * @return int bits
+		 */
+		 protected function estimateBitStreamSize($items, $version) {
+			$bits = 0;
+			if ($version == 0) {
+				$version = 1;
+			}
+			foreach ($items as $item) {
+				switch($item['mode']) {
+					case QR_MODE_NM: {
+						$bits = $this->estimateBitsModeNum($item['size']);
+						break;
+					}
+					case QR_MODE_AN: {
+						$bits = $this->estimateBitsModeAn($item['size']);
+						break;
+					}
+					case QR_MODE_8B: {
+						$bits = $this->estimateBitsMode8($item['size']);
+						break;
+					}
+					case QR_MODE_KJ: {
+						$bits = $this->estimateBitsModeKanji($item['size']);
+						break;
+					}
+					case QR_MODE_ST: {
+						return STRUCTURE_HEADER_BITS;
+					}
+					default: {
+						return 0;
+					}
+				}
+				$l = $this->lengthIndicator($item['mode'], $version);
+				$m = 1 << $l;
+				$num = (int)(($item['size'] + $m - 1) / $m);
+				$bits += $num * (4 + $l);
+			}
+			return $bits;
+		}
+
+		/**
+		 * estimateVersion
+		 * @param array $items
+		 * @return int version
+		 */
+		 protected function estimateVersion($items) {
+			$version = 0;
+			$prev = 0;
+			do {
+				$prev = $version;
+				$bits = $this->estimateBitStreamSize($items, $prev);
+				$version = $this->getMinimumVersion((int)(($bits + 7) / 8), $this->level);
+				if ($version < 0) {
+					return -1;
+				}
+			} while ($version > $prev);
+			return $version;
+		}
+
+		/**
+		 * lengthOfCode
+		 * @param int $mode
+		 * @param int $version
+		 * @param int $bits
+		 * @return int size
+		 */
+		 protected function lengthOfCode($mode, $version, $bits) {
+			$payload = $bits - 4 - $this->lengthIndicator($mode, $version);
+			switch($mode) {
+				case QR_MODE_NM: {
+					$chunks = (int)($payload / 10);
+					$remain = $payload - $chunks * 10;
+					$size = $chunks * 3;
+					if ($remain >= 7) {
+						$size += 2;
+					} elseif ($remain >= 4) {
+						$size += 1;
+					}
+					break;
+				}
+				case QR_MODE_AN: {
+					$chunks = (int)($payload / 11);
+					$remain = $payload - $chunks * 11;
+					$size = $chunks * 2;
+					if ($remain >= 6) {
+						++$size;
+					}
+					break;
+				}
+				case QR_MODE_8B: {
+					$size = (int)($payload / 8);
+					break;
+				}
+				case QR_MODE_KJ: {
+					$size = (int)(($payload / 13) * 2);
+					break;
+				}
+				case QR_MODE_ST: {
+					$size = (int)($payload / 8);
+					break;
+				}
+				default: {
+					$size = 0;
+					break;
+				}
+			}
+			$maxsize = $this->maximumWords($mode, $version);
+			if ($size < 0) {
+				$size = 0;
+			}
+			if ($size > $maxsize) {
+				$size = $maxsize;
+			}
+			return $size;
+		}
+
+		/**
+		 * createBitStream
+		 * @param array $items
+		 * @return array of items and total bits
+		 */
+		 protected function createBitStream($items) {
+			$total = 0;
+			foreach ($items as $key => $item) {
+				$items[$key] = $this->encodeBitStream($item, $this->version);
+				$bits = count($items[$key]['bstream']);
+				$total += $bits;
+			}
+			return array($items, $total);
+		}
+
+		/**
+		 * convertData
+		 * @param array $items
+		 * @return array items
+		 */
+		 protected function convertData($items) {
+			$ver = $this->estimateVersion($items);
+			if ($ver > $this->version) {
+				$this->version = $ver;
+			}
+			for (;;) {
+				$cbs = $this->createBitStream($items);
+				$items = $cbs[0];
+				$bits = $cbs[1];
+				if ($bits < 0) {
+					return -1;
+				}
+				$ver = $this->getMinimumVersion((int)(($bits + 7) / 8), $this->level);
+				if ($ver < 0) {
+					return -1;
+				} elseif ($ver > $this->version) {
+					$this->version = $ver;
+				} else {
+					break;
+				}
+			}
+			return $items;
+		}
+
+		/**
+		 * Append Padding Bit to bitstream
+		 * @param array $bstream
+		 * @return array bitstream
+		 */
+		 protected function appendPaddingBit($bstream) {
+			$bits = count($bstream);
+			$maxwords = $this->getDataLength($this->version, $this->level);
+			$maxbits = $maxwords * 8;
+			if ($maxbits == $bits) {
+				return 0;
+			}
+			if ($maxbits - $bits < 5) {
+				return $this->appendNum($bstream, $maxbits - $bits, 0);
+			}
+			$bits += 4;
+			$words = (int)(($bits + 7) / 8);
+			$padding = array();
+			$padding = $this->appendNum($padding, $words * 8 - $bits + 4, 0);
+			$padlen = $maxwords - $words;
+			if ($padlen > 0) {
+				$padbuf = array();
+				for ($i=0; $i<$padlen; ++$i) {
+					$padbuf[$i] = ($i&1)?0x11:0xec;
+				}
+				$padding = $this->appendBytes($padding, $padlen, $padbuf);
+			}
+			return $this->appendBitstream($bstream, $padding);
+		}
+
+		/**
+		 * mergeBitStream
+		 * @param array $bstream
+		 * @return array bitstream
+		 */
+		 protected function mergeBitStream($items) {
+			$items = $this->convertData($items);
+			$bstream = array();
+			foreach ($items as $item) {
+				$bstream = $this->appendBitstream($bstream, $item['bstream']);
+			}
+			return $bstream;
+		}
+
+		/**
+		 * Returns a stream of bits.
+		 * @param int $items
+		 * @return array padded merged byte stream
+		 */
+		protected function getBitStream($items) {
+			$bstream = $this->mergeBitStream($items);
+			return $this->appendPaddingBit($bstream);
+		}
+
+		/**
+		 * Pack all bit streams padding bits into a byte array.
+		 * @param int $items
+		 * @return array padded merged byte stream
+		 */
+		protected function getByteStream($items) {
+			$bstream = $this->getBitStream($items);
+			return $this->bitstreamToByte($bstream);
+		}
+
+		// - - - - - - - - - - - - - - - - - - - - - - - - -
+
+		// QRbitstream
+
+		/**
+		 * Return an array with zeros
+		 * @param int $setLength array size
+		 * @return array
+		 */
+		 protected function allocate($setLength) {
+			return array_fill(0, $setLength, 0);
+		}
+
+		/**
+		 * Return new bitstream from number
+		 * @param int $bits number of bits
+		 * @param int $num number
+		 * @return array bitstream
+		 */
+		 protected function newFromNum($bits, $num) {
+			$bstream = $this->allocate($bits);
+			$mask = 1 << ($bits - 1);
+			for ($i=0; $i<$bits; ++$i) {
+				if ($num & $mask) {
+					$bstream[$i] = 1;
+				} else {
+					$bstream[$i] = 0;
+				}
+				$mask = $mask >> 1;
+			}
+			return $bstream;
+		}
+
+		/**
+		 * Return new bitstream from bytes
+		 * @param int $size size
+		 * @param array $data bytes
+		 * @return array bitstream
+		 */
+		 protected function newFromBytes($size, $data) {
+			$bstream = $this->allocate($size * 8);
+			$p=0;
+			for ($i=0; $i<$size; ++$i) {
+				$mask = 0x80;
+				for ($j=0; $j<8; ++$j) {
+					if ($data[$i] & $mask) {
+						$bstream[$p] = 1;
+					} else {
+						$bstream[$p] = 0;
+					}
+					$p++;
+					$mask = $mask >> 1;
+				}
+			}
+			return $bstream;
+		}
+
+		/**
+		 * Append one bitstream to another
+		 * @param array $bitstream original bitstream
+		 * @param array $append bitstream to append
+		 * @return array bitstream
+		 */
+		 protected function appendBitstream($bitstream, $append) {
+			if ((!is_array($append)) OR (count($append) == 0)) {
+				return $bitstream;
+			}
+			if (count($bitstream) == 0) {
+				return $append;
+			}
+			return array_values(array_merge($bitstream, $append));
+		}
+
+		/**
+		 * Append one bitstream created from number to another
+		 * @param array $bitstream original bitstream
+		 * @param int $bits number of bits
+		 * @param int $num number
+		 * @return array bitstream
+		 */
+		 protected function appendNum($bitstream, $bits, $num) {
+			if ($bits == 0) {
+				return 0;
+			}
+			$b = $this->newFromNum($bits, $num);
+			return $this->appendBitstream($bitstream, $b);
+		}
+
+		/**
+		 * Append one bitstream created from bytes to another
+		 * @param array $bitstream original bitstream
+		 * @param int $size size
+		 * @param array $data bytes
+		 * @return array bitstream
+		 */
+		 protected function appendBytes($bitstream, $size, $data) {
+			if ($size == 0) {
+				return 0;
+			}
+			$b = $this->newFromBytes($size, $data);
+			return $this->appendBitstream($bitstream, $b);
+		}
+
+		/**
+		 * Convert bitstream to bytes
+		 * @param array $bitstream original bitstream
+		 * @return array of bytes
+		 */
+		 protected function bitstreamToByte($bstream) {
+			$size = count($bstream);
+			if ($size == 0) {
+				return array();
+			}
+			$data = array_fill(0, (int)(($size + 7) / 8), 0);
+			$bytes = (int)($size / 8);
+			$p = 0;
+			for ($i=0; $i<$bytes; $i++) {
+				$v = 0;
+				for ($j=0; $j<8; $j++) {
+					$v = $v << 1;
+					$v |= $bstream[$p];
+					$p++;
+				}
+				$data[$i] = $v;
+			}
+			if ($size & 7) {
+				$v = 0;
+				for ($j=0; $j<($size & 7); $j++) {
+					$v = $v << 1;
+					$v |= $bstream[$p];
+					$p++;
+				}
+				$data[$bytes] = $v;
+			}
+			return $data;
+		}
+
+		// - - - - - - - - - - - - - - - - - - - - - - - - -
+
+		// QRspec
+
+		/**
+		 * Replace a value on the array at the specified position
+		 * @param array $srctab
+		 * @param int $x X position
+		 * @param int $y Y position
+		 * @param string $repl value to replace
+		 * @param int $replLen length of the repl string
+		 * @return array srctab
+		 */
+		 protected function qrstrset($srctab, $x, $y, $repl, $replLen=false) {
+			$srctab[$y] = substr_replace($srctab[$y], ($replLen !== false)?substr($repl,0,$replLen):$repl, $x, ($replLen !== false)?$replLen:strlen($repl));
+			return $srctab;
+		}
+
+		/**
+		 * Return maximum data code length (bytes) for the version.
+		 * @param int $version version
+		 * @param int $level error correction level
+		 * @return int maximum size (bytes)
+		 */
+		protected function getDataLength($version, $level) {
+			return $this->capacity[$version][QRCAP_WORDS] - $this->capacity[$version][QRCAP_EC][$level];
+		}
+
+		/**
+		 * Return maximum error correction code length (bytes) for the version.
+		 * @param int $version version
+		 * @param int $level error correction level
+		 * @return int ECC size (bytes)
+		 */
+		protected function getECCLength($version, $level){
+			return $this->capacity[$version][QRCAP_EC][$level];
+		}
+
+		/**
+		 * Return the width of the symbol for the version.
+		 * @param int $version version
+		 * @return int width
+		 */
+		protected function getWidth($version) {
+			return $this->capacity[$version][QRCAP_WIDTH];
+		}
+
+		/**
+		 * Return the numer of remainder bits.
+		 * @param int $version version
+		 * @return int number of remainder bits
+		 */
+		protected function getRemainder($version) {
+			return $this->capacity[$version][QRCAP_REMINDER];
+		}
+
+		/**
+		 * Return a version number that satisfies the input code length.
+		 * @param int $size input code length (byte)
+		 * @param int $level error correction level
+		 * @return int version number
+		 */
+		protected function getMinimumVersion($size, $level) {
+			for ($i=1; $i <= QRSPEC_VERSION_MAX; ++$i) {
+				$words  = $this->capacity[$i][QRCAP_WORDS] - $this->capacity[$i][QRCAP_EC][$level];
+				if ($words >= $size) {
+					return $i;
+				}
+			}
+			return -1;
+		}
+
+		/**
+		 * Return the size of length indicator for the mode and version.
+		 * @param int $mode encoding mode
+		 * @param int $version version
+		 * @return int the size of the appropriate length indicator (bits).
+		 */
+		protected function lengthIndicator($mode, $version) {
+			if ($mode == QR_MODE_ST) {
+				return 0;
+			}
+			if ($version <= 9) {
+				$l = 0;
+			} elseif ($version <= 26) {
+				$l = 1;
+			} else {
+				$l = 2;
+			}
+			return $this->lengthTableBits[$mode][$l];
+		}
+
+		/**
+		 * Return the maximum length for the mode and version.
+		 * @param int $mode encoding mode
+		 * @param int $version version
+		 * @return int the maximum length (bytes)
+		 */
+		protected function maximumWords($mode, $version) {
+			if ($mode == QR_MODE_ST) {
+				return 3;
+			}
+			if ($version <= 9) {
+				$l = 0;
+			} else if ($version <= 26) {
+				$l = 1;
+			} else {
+				$l = 2;
+			}
+			$bits = $this->lengthTableBits[$mode][$l];
+			$words = (1 << $bits) - 1;
+			if ($mode == QR_MODE_KJ) {
+				$words *= 2; // the number of bytes is required
+			}
+			return $words;
+		}
+
+		/**
+		 * Return an array of ECC specification.
+		 * @param int $version version
+		 * @param int $level error correction level
+		 * @param array $spec an array of ECC specification contains as following: {# of type1 blocks, # of data code, # of ecc code, # of type2 blocks, # of data code}
+		 * @return array spec
+		 */
+		protected function getEccSpec($version, $level, $spec) {
+			if (count($spec) < 5) {
+				$spec = array(0, 0, 0, 0, 0);
+			}
+			$b1 = $this->eccTable[$version][$level][0];
+			$b2 = $this->eccTable[$version][$level][1];
+			$data = $this->getDataLength($version, $level);
+			$ecc = $this->getECCLength($version, $level);
+			if ($b2 == 0) {
+				$spec[0] = $b1;
+				$spec[1] = (int)($data / $b1);
+				$spec[2] = (int)($ecc / $b1);
+				$spec[3] = 0;
+				$spec[4] = 0;
+			} else {
+				$spec[0] = $b1;
+				$spec[1] = (int)($data / ($b1 + $b2));
+				$spec[2] = (int)($ecc  / ($b1 + $b2));
+				$spec[3] = $b2;
+				$spec[4] = $spec[1] + 1;
+			}
+			return $spec;
+		}
+
+		/**
+		 * Put an alignment marker.
+		 * @param array $frame frame
+		 * @param int $width width
+		 * @param int $ox X center coordinate of the pattern
+		 * @param int $oy Y center coordinate of the pattern
+		 * @return array frame
+		 */
+		protected function putAlignmentMarker($frame, $ox, $oy) {
+			$finder = array(
+				"\xa1\xa1\xa1\xa1\xa1",
+				"\xa1\xa0\xa0\xa0\xa1",
+				"\xa1\xa0\xa1\xa0\xa1",
+				"\xa1\xa0\xa0\xa0\xa1",
+				"\xa1\xa1\xa1\xa1\xa1"
+				);
+			$yStart = $oy - 2;
+			$xStart = $ox - 2;
+			for ($y=0; $y < 5; $y++) {
+				$frame = $this->qrstrset($frame, $xStart, $yStart+$y, $finder[$y]);
+			}
+			return $frame;
+		}
+
+		/**
+		 * Put an alignment pattern.
+		 * @param int $version version
+		 * @param array $fram frame
+		 * @param int $width width
+		 * @return array frame
+		 */
+		 protected function putAlignmentPattern($version, $frame, $width) {
+			if ($version < 2) {
+				return $frame;
+			}
+			$d = $this->alignmentPattern[$version][1] - $this->alignmentPattern[$version][0];
+			if ($d < 0) {
+				$w = 2;
+			} else {
+				$w = (int)(($width - $this->alignmentPattern[$version][0]) / $d + 2);
+			}
+			if ($w * $w - 3 == 1) {
+				$x = $this->alignmentPattern[$version][0];
+				$y = $this->alignmentPattern[$version][0];
+				$frame = $this->putAlignmentMarker($frame, $x, $y);
+				return $frame;
+			}
+			$cx = $this->alignmentPattern[$version][0];
+			$wo = $w - 1;
+			for ($x=1; $x < $wo; ++$x) {
+				$frame = $this->putAlignmentMarker($frame, 6, $cx);
+				$frame = $this->putAlignmentMarker($frame, $cx,  6);
+				$cx += $d;
+			}
+			$cy = $this->alignmentPattern[$version][0];
+			for ($y=0; $y < $wo; ++$y) {
+				$cx = $this->alignmentPattern[$version][0];
+				for ($x=0; $x < $wo; ++$x) {
+					$frame = $this->putAlignmentMarker($frame, $cx, $cy);
+					$cx += $d;
+				}
+				$cy += $d;
+			}
+			return $frame;
+		}
+
+		/**
+		 * Return BCH encoded version information pattern that is used for the symbol of version 7 or greater. Use lower 18 bits.
+		 * @param int $version version
+		 * @return BCH encoded version information pattern
+		 */
+		protected function getVersionPattern($version) {
+			if (($version < 7) OR ($version > QRSPEC_VERSION_MAX)) {
+				return 0;
+			}
+			return $this->versionPattern[($version - 7)];
+		}
+
+		/**
+		 * Return BCH encoded format information pattern.
+		 * @param array $mask
+		 * @param int $level error correction level
+		 * @return BCH encoded format information pattern
+		 */
+		protected function getFormatInfo($mask, $level) {
+			if (($mask < 0) OR ($mask > 7)) {
+				return 0;
+			}
+			if (($level < 0) OR ($level > 3)) {
+				return 0;
+			}
+			return $this->formatInfo[$level][$mask];
+		}
+
+		/**
+		 * Put a finder pattern.
+		 * @param array $frame frame
+		 * @param int $width width
+		 * @param int $ox X center coordinate of the pattern
+		 * @param int $oy Y center coordinate of the pattern
+		 * @return array frame
+		 */
+		protected function putFinderPattern($frame, $ox, $oy) {
+			$finder = array(
+			"\xc1\xc1\xc1\xc1\xc1\xc1\xc1",
+			"\xc1\xc0\xc0\xc0\xc0\xc0\xc1",
+			"\xc1\xc0\xc1\xc1\xc1\xc0\xc1",
+			"\xc1\xc0\xc1\xc1\xc1\xc0\xc1",
+			"\xc1\xc0\xc1\xc1\xc1\xc0\xc1",
+			"\xc1\xc0\xc0\xc0\xc0\xc0\xc1",
+			"\xc1\xc1\xc1\xc1\xc1\xc1\xc1"
+			);
+			for ($y=0; $y < 7; $y++) {
+				$frame = $this->qrstrset($frame, $ox, ($oy + $y), $finder[$y]);
+			}
+			return $frame;
+		}
+
+		/**
+		 * Return a copy of initialized frame.
+		 * @param int $version version
+		 * @return Array of unsigned char.
+		 */
+		protected function createFrame($version) {
+			$width = $this->capacity[$version][QRCAP_WIDTH];
+			$frameLine = str_repeat ("\0", $width);
+			$frame = array_fill(0, $width, $frameLine);
+			// Finder pattern
+			$frame = $this->putFinderPattern($frame, 0, 0);
+			$frame = $this->putFinderPattern($frame, $width - 7, 0);
+			$frame = $this->putFinderPattern($frame, 0, $width - 7);
+			// Separator
+			$yOffset = $width - 7;
+			for ($y=0; $y < 7; ++$y) {
+				$frame[$y][7] = "\xc0";
+				$frame[$y][$width - 8] = "\xc0";
+				$frame[$yOffset][7] = "\xc0";
+				++$yOffset;
+			}
+			$setPattern = str_repeat("\xc0", 8);
+			$frame = $this->qrstrset($frame, 0, 7, $setPattern);
+			$frame = $this->qrstrset($frame, $width-8, 7, $setPattern);
+			$frame = $this->qrstrset($frame, 0, $width - 8, $setPattern);
+			// Format info
+			$setPattern = str_repeat("\x84", 9);
+			$frame = $this->qrstrset($frame, 0, 8, $setPattern);
+			$frame = $this->qrstrset($frame, $width - 8, 8, $setPattern, 8);
+			$yOffset = $width - 8;
+			for ($y=0; $y < 8; ++$y,++$yOffset) {
+				$frame[$y][8] = "\x84";
+				$frame[$yOffset][8] = "\x84";
+			}
+			// Timing pattern
+			$wo = $width - 15;
+			for ($i=1; $i < $wo; ++$i) {
+				$frame[6][7+$i] = chr(0x90 | ($i & 1));
+				$frame[7+$i][6] = chr(0x90 | ($i & 1));
+			}
+			// Alignment pattern
+			$frame = $this->putAlignmentPattern($version, $frame, $width);
+			// Version information
+			if ($version >= 7) {
+				$vinf = $this->getVersionPattern($version);
+				$v = $vinf;
+				for ($x=0; $x<6; ++$x) {
+					for ($y=0; $y<3; ++$y) {
+						$frame[($width - 11)+$y][$x] = chr(0x88 | ($v & 1));
+						$v = $v >> 1;
+					}
+				}
+				$v = $vinf;
+				for ($y=0; $y<6; ++$y) {
+					for ($x=0; $x<3; ++$x) {
+						$frame[$y][$x+($width - 11)] = chr(0x88 | ($v & 1));
+						$v = $v >> 1;
+					}
+				}
+			}
+			// and a little bit...
+			$frame[$width - 8][8] = "\x81";
+			return $frame;
+		}
+
+		/**
+		 * Set new frame for the specified version.
+		 * @param int $version version
+		 * @return Array of unsigned char.
+		 */
+		protected function newFrame($version) {
+			if (($version < 1) OR ($version > QRSPEC_VERSION_MAX)) {
+				return NULL;
+			}
+			if (!isset($this->frames[$version])) {
+				$this->frames[$version] = $this->createFrame($version);
+			}
+			if (is_null($this->frames[$version])) {
+				return NULL;
+			}
+			return $this->frames[$version];
+		}
+
+		/**
+		 * Return block number 0
+		 * @param array $spec
+		 * @return int value
+		 */
+		 protected function rsBlockNum($spec) {
+			return ($spec[0] + $spec[3]);
+		}
+
+		/**
+		* Return block number 1
+		 * @param array $spec
+		 * @return int value
+		 */
+		 protected function rsBlockNum1($spec) {
+			return $spec[0];
+		}
+
+		/**
+		 * Return data codes 1
+		 * @param array $spec
+		 * @return int value
+		 */
+		 protected function rsDataCodes1($spec) {
+			return $spec[1];
+		}
+
+		/**
+		 * Return ecc codes 1
+		 * @param array $spec
+		 * @return int value
+		 */
+		 protected function rsEccCodes1($spec) {
+			return $spec[2];
+		}
+
+		/**
+		 * Return block number 2
+		 * @param array $spec
+		 * @return int value
+		 */
+		 protected function rsBlockNum2($spec) {
+			return $spec[3];
+		}
+
+		/**
+		 * Return data codes 2
+		 * @param array $spec
+		 * @return int value
+		 */
+		 protected function rsDataCodes2($spec) {
+			return $spec[4];
+		}
+
+		/**
+		 * Return ecc codes 2
+		 * @param array $spec
+		 * @return int value
+		 */
+		 protected function rsEccCodes2($spec) {
+			return $spec[2];
+		}
+
+		/**
+		 * Return data length
+		 * @param array $spec
+		 * @return int value
+		 */
+		 protected function rsDataLength($spec) {
+			return ($spec[0] * $spec[1]) + ($spec[3] * $spec[4]);
+		}
+
+		/**
+		 * Return ecc length
+		 * @param array $spec
+		 * @return int value
+		 */
+		 protected function rsEccLength($spec) {
+			return ($spec[0] + $spec[3]) * $spec[2];
+		}
+
+		// - - - - - - - - - - - - - - - - - - - - - - - - -
+
+		// QRrs
+
+		/**
+		 * Initialize a Reed-Solomon codec and add it to existing rsitems
+		 * @param int $symsize symbol size, bits
+		 * @param int $gfpoly  Field generator polynomial coefficients
+		 * @param int $fcr  first root of RS code generator polynomial, index form
+		 * @param int $prim  primitive element to generate polynomial roots
+		 * @param int $nroots RS code generator polynomial degree (number of roots)
+		 * @param int $pad  padding bytes at front of shortened block
+		 * @return array Array of RS values:<ul><li>mm = Bits per symbol;</li><li>nn = Symbols per block;</li><li>alpha_to = log lookup table array;</li><li>index_of = Antilog lookup table array;</li><li>genpoly = Generator polynomial array;</li><li>nroots = Number of generator;</li><li>roots = number of parity symbols;</li><li>fcr = First consecutive root, index form;</li><li>prim = Primitive element, index form;</li><li>iprim = prim-th root of 1, index form;</li><li>pad = Padding bytes in shortened block;</li><li>gfpoly</ul>.
+		 */
+		 protected function init_rs($symsize, $gfpoly, $fcr, $prim, $nroots, $pad) {
+			foreach ($this->rsitems as $rs) {
+				if (($rs['pad'] != $pad) OR ($rs['nroots'] != $nroots) OR ($rs['mm'] != $symsize)
+					OR ($rs['gfpoly'] != $gfpoly) OR ($rs['fcr'] != $fcr) OR ($rs['prim'] != $prim)) {
+					continue;
+				}
+				return $rs;
+			}
+			$rs = $this->init_rs_char($symsize, $gfpoly, $fcr, $prim, $nroots, $pad);
+			array_unshift($this->rsitems, $rs);
+			return $rs;
+		}
+
+		// - - - - - - - - - - - - - - - - - - - - - - - - -
+
+		// QRrsItem
+
+		/**
+		 * modnn
+		 * @param array RS values
+		 * @param int $x X position
+		 * @return int X osition
+		 */
+		 protected function modnn($rs, $x) {
+			while ($x >= $rs['nn']) {
+				$x -= $rs['nn'];
+				$x = ($x >> $rs['mm']) + ($x & $rs['nn']);
+			}
+			return $x;
+		}
+
+		/**
+		 * Initialize a Reed-Solomon codec and returns an array of values.
+		 * @param int $symsize symbol size, bits
+		 * @param int $gfpoly  Field generator polynomial coefficients
+		 * @param int $fcr  first root of RS code generator polynomial, index form
+		 * @param int $prim  primitive element to generate polynomial roots
+		 * @param int $nroots RS code generator polynomial degree (number of roots)
+		 * @param int $pad  padding bytes at front of shortened block
+		 * @return array Array of RS values:<ul><li>mm = Bits per symbol;</li><li>nn = Symbols per block;</li><li>alpha_to = log lookup table array;</li><li>index_of = Antilog lookup table array;</li><li>genpoly = Generator polynomial array;</li><li>nroots = Number of generator;</li><li>roots = number of parity symbols;</li><li>fcr = First consecutive root, index form;</li><li>prim = Primitive element, index form;</li><li>iprim = prim-th root of 1, index form;</li><li>pad = Padding bytes in shortened block;</li><li>gfpoly</ul>.
+		 */
+		protected function init_rs_char($symsize, $gfpoly, $fcr, $prim, $nroots, $pad) {
+			// Based on Reed solomon encoder by Phil Karn, KA9Q (GNU-LGPLv2)
+			$rs = null;
+			// Check parameter ranges
+			if (($symsize < 0) OR ($symsize > 8)) {
+				return $rs;
+			}
+			if (($fcr < 0) OR ($fcr >= (1<<$symsize))) {
+				return $rs;
+			}
+			if (($prim <= 0) OR ($prim >= (1<<$symsize))) {
+				return $rs;
+			}
+			if (($nroots < 0) OR ($nroots >= (1<<$symsize))) {
+				return $rs;
+			}
+			if (($pad < 0) OR ($pad >= ((1<<$symsize) -1 - $nroots))) {
+				return $rs;
+			}
+			$rs = array();
+			$rs['mm'] = $symsize;
+			$rs['nn'] = (1 << $symsize) - 1;
+			$rs['pad'] = $pad;
+			$rs['alpha_to'] = array_fill(0, ($rs['nn'] + 1), 0);
+			$rs['index_of'] = array_fill(0, ($rs['nn'] + 1), 0);
+			// PHP style macro replacement ;)
+			$NN =& $rs['nn'];
+			$A0 =& $NN;
+			// Generate Galois field lookup tables
+			$rs['index_of'][0] = $A0; // log(zero) = -inf
+			$rs['alpha_to'][$A0] = 0; // alpha**-inf = 0
+			$sr = 1;
+			for ($i=0; $i<$rs['nn']; ++$i) {
+				$rs['index_of'][$sr] = $i;
+				$rs['alpha_to'][$i] = $sr;
+				$sr <<= 1;
+				if ($sr & (1 << $symsize)) {
+					$sr ^= $gfpoly;
+				}
+				$sr &= $rs['nn'];
+			}
+			if ($sr != 1) {
+				// field generator polynomial is not primitive!
+				return NULL;
+			}
+			// Form RS code generator polynomial from its roots
+			$rs['genpoly'] = array_fill(0, ($nroots + 1), 0);
+			$rs['fcr'] = $fcr;
+			$rs['prim'] = $prim;
+			$rs['nroots'] = $nroots;
+			$rs['gfpoly'] = $gfpoly;
+			// Find prim-th root of 1, used in decoding
+			for ($iprim=1; ($iprim % $prim) != 0; $iprim += $rs['nn']) {
+				; // intentional empty-body loop!
+			}
+			$rs['iprim'] = (int)($iprim / $prim);
+			$rs['genpoly'][0] = 1;
+
+
+			for ($i = 0,$root=$fcr*$prim; $i < $nroots; $i++, $root += $prim) {
+				$rs['genpoly'][$i+1] = 1;
+				// Multiply rs->genpoly[] by  @**(root + x)
+				for ($j = $i; $j > 0; --$j) {
+					if ($rs['genpoly'][$j] != 0) {
+						$rs['genpoly'][$j] = $rs['genpoly'][$j-1] ^ $rs['alpha_to'][$this->modnn($rs, $rs['index_of'][$rs['genpoly'][$j]] + $root)];
+					} else {
+						$rs['genpoly'][$j] = $rs['genpoly'][$j-1];
+					}
+				}
+				// rs->genpoly[0] can never be zero
+				$rs['genpoly'][0] = $rs['alpha_to'][$this->modnn($rs, $rs['index_of'][$rs['genpoly'][0]] + $root)];
+			}
+			// convert rs->genpoly[] to index form for quicker encoding
+			for ($i = 0; $i <= $nroots; ++$i) {
+				$rs['genpoly'][$i] = $rs['index_of'][$rs['genpoly'][$i]];
+			}
+			return $rs;
+		}
+
+		/**
+		 * Encode a Reed-Solomon codec and returns the parity array
+		 * @param array $rs RS values
+		 * @param array $data data
+		 * @param array $parity parity
+		 * @return parity array
+		 */
+		 protected function encode_rs_char($rs, $data, $parity) {
+			$MM       =& $rs['mm']; // bits per symbol
+			$NN       =& $rs['nn']; // the total number of symbols in a RS block
+			$ALPHA_TO =& $rs['alpha_to']; // the address of an array of NN elements to convert Galois field elements in index (log) form to polynomial form
+			$INDEX_OF =& $rs['index_of']; // the address of an array of NN elements to convert Galois field elements in polynomial form to index (log) form
+			$GENPOLY  =& $rs['genpoly']; // an array of NROOTS+1 elements containing the generator polynomial in index form
+			$NROOTS   =& $rs['nroots']; // the number of roots in the RS code generator polynomial, which is the same as the number of parity symbols in a block
+			$FCR      =& $rs['fcr']; // first consecutive root, index form
+			$PRIM     =& $rs['prim']; // primitive element, index form
+			$IPRIM    =& $rs['iprim']; // prim-th root of 1, index form
+			$PAD      =& $rs['pad']; // the number of pad symbols in a block
+			$A0       =& $NN;
+			$parity = array_fill(0, $NROOTS, 0);
+			for ($i=0; $i < ($NN - $NROOTS - $PAD); $i++) {
+				$feedback = $INDEX_OF[$data[$i] ^ $parity[0]];
+				if ($feedback != $A0) {
+					// feedback term is non-zero
+					// This line is unnecessary when GENPOLY[NROOTS] is unity, as it must
+					// always be for the polynomials constructed by init_rs()
+					$feedback = $this->modnn($rs, $NN - $GENPOLY[$NROOTS] + $feedback);
+					for ($j=1; $j < $NROOTS; ++$j) {
+					$parity[$j] ^= $ALPHA_TO[$this->modnn($rs, $feedback + $GENPOLY[($NROOTS - $j)])];
+					}
+				}
+				// Shift
+				array_shift($parity);
+				if ($feedback != $A0) {
+					array_push($parity, $ALPHA_TO[$this->modnn($rs, $feedback + $GENPOLY[0])]);
+				} else {
+					array_push($parity, 0);
+				}
+			}
+			return $parity;
+		}
+
+	} // end QRcode class
+
+} // END OF "class_exists QRcode"
+?>
diff --git a/src-backup/includes/phpqrcode/cache/frame_1.dat b/src-backup/includes/phpqrcode/cache/frame_1.dat
new file mode 100644
index 0000000..be28fea
--- /dev/null
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diff --git a/src-backup/includes/phpqrcode/cache/frame_16.dat b/src-backup/includes/phpqrcode/cache/frame_16.dat
new file mode 100644
index 0000000..60af678
--- /dev/null
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new file mode 100644
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new file mode 100644
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new file mode 100644
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new file mode 100644
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--- /dev/null
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new file mode 100644
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new file mode 100644
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new file mode 100644
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\ No newline at end of file
diff --git a/src-backup/includes/phpqrcode/index.php b/src-backup/includes/phpqrcode/index.php
new file mode 100644
index 0000000..9e14b7e
--- /dev/null
+++ b/src-backup/includes/phpqrcode/index.php
@@ -0,0 +1,94 @@
+<?php    
+/*
+ * PHP QR Code encoder
+ *
+ * Exemplatory usage
+ *
+ * PHP QR Code is distributed under LGPL 3
+ * Copyright (C) 2010 Dominik Dzienia <deltalab at poczta dot fm>
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 3 of the License, or any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+    
+    echo "<h1>PHP QR Code</h1><hr/>";
+    
+    //set it to writable location, a place for temp generated PNG files
+    $PNG_TEMP_DIR = dirname(__FILE__).DIRECTORY_SEPARATOR.'temp'.DIRECTORY_SEPARATOR;
+    
+    //html PNG location prefix
+    $PNG_WEB_DIR = 'temp/';
+
+    include "qrlib.php";    
+    
+    //ofcourse we need rights to create temp dir
+    if (!file_exists($PNG_TEMP_DIR))
+        mkdir($PNG_TEMP_DIR);
+    
+    
+    $filename = $PNG_TEMP_DIR.'test.png';
+    
+    //processing form input
+    //remember to sanitize user input in real-life solution !!!
+    $errorCorrectionLevel = 'L';
+    if (isset($_REQUEST['level']) && in_array($_REQUEST['level'], array('L','M','Q','H')))
+        $errorCorrectionLevel = $_REQUEST['level'];    
+
+    $matrixPointSize = 4;
+    if (isset($_REQUEST['size']))
+        $matrixPointSize = min(max((int)$_REQUEST['size'], 1), 10);
+
+
+    if (isset($_REQUEST['data'])) { 
+    
+        //it's very important!
+        if (trim($_REQUEST['data']) == '')
+            die('data cannot be empty! <a href="?">back</a>');
+            
+        // user data
+        $filename = $PNG_TEMP_DIR.'test'.md5($_REQUEST['data'].'|'.$errorCorrectionLevel.'|'.$matrixPointSize).'.png';
+        QRcode::png($_REQUEST['data'], $filename, $errorCorrectionLevel, $matrixPointSize, 2);    
+        
+    } else {    
+    
+        //default data
+        echo 'You can provide data in GET parameter: <a href="?data=like_that">like that</a><hr/>';    
+        QRcode::png('PHP QR Code :)', $filename, $errorCorrectionLevel, $matrixPointSize, 2);    
+        
+    }    
+        
+    //display generated file
+    echo '<img src="'.$PNG_WEB_DIR.basename($filename).'" /><hr/>';  
+    
+    //config form
+    echo '<form action="index.php" method="post">
+        Data:&nbsp;<input name="data" value="'.(isset($_REQUEST['data'])?htmlspecialchars($_REQUEST['data']):'PHP QR Code :)').'" />&nbsp;
+        ECC:&nbsp;<select name="level">
+            <option value="L"'.(($errorCorrectionLevel=='L')?' selected':'').'>L - smallest</option>
+            <option value="M"'.(($errorCorrectionLevel=='M')?' selected':'').'>M</option>
+            <option value="Q"'.(($errorCorrectionLevel=='Q')?' selected':'').'>Q</option>
+            <option value="H"'.(($errorCorrectionLevel=='H')?' selected':'').'>H - best</option>
+        </select>&nbsp;
+        Size:&nbsp;<select name="size">';
+        
+    for($i=1;$i<=10;$i++)
+        echo '<option value="'.$i.'"'.(($matrixPointSize==$i)?' selected':'').'>'.$i.'</option>';
+        
+    echo '</select>&nbsp;
+        <input type="submit" value="GENERATE"></form><hr/>';
+        
+    // benchmark
+    QRtools::timeBenchmark();    
+
+    
\ No newline at end of file
diff --git a/src-backup/includes/phpqrcode/phpqrcode.php b/src-backup/includes/phpqrcode/phpqrcode.php
new file mode 100644
index 0000000..80adb9d
--- /dev/null
+++ b/src-backup/includes/phpqrcode/phpqrcode.php
@@ -0,0 +1,3312 @@
+<?php
+
+/*
+ * PHP QR Code encoder
+ *
+ * This file contains MERGED version of PHP QR Code library.
+ * It was auto-generated from full version for your convenience.
+ *
+ * This merged version was configured to not requre any external files,
+ * with disabled cache, error loging and weker but faster mask matching.
+ * If you need tune it up please use non-merged version.
+ *
+ * For full version, documentation, examples of use please visit:
+ *
+ *    http://phpqrcode.sourceforge.net/
+ *    https://sourceforge.net/projects/phpqrcode/
+ *
+ * PHP QR Code is distributed under LGPL 3
+ * Copyright (C) 2010 Dominik Dzienia <deltalab at poczta dot fm>
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 3 of the License, or any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+ 
+ 
+
+/*
+ * Version: 1.1.4
+ * Build: 2010100721
+ */
+
+
+
+//---- qrconst.php -----------------------------
+
+
+
+
+
+/*
+ * PHP QR Code encoder
+ *
+ * Common constants
+ *
+ * Based on libqrencode C library distributed under LGPL 2.1
+ * Copyright (C) 2006, 2007, 2008, 2009 Kentaro Fukuchi <fukuchi@megaui.net>
+ *
+ * PHP QR Code is distributed under LGPL 3
+ * Copyright (C) 2010 Dominik Dzienia <deltalab at poczta dot fm>
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 3 of the License, or any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+ 
+	// Encoding modes
+	 
+	define('QR_MODE_NUL', -1);
+	define('QR_MODE_NUM', 0);
+	define('QR_MODE_AN', 1);
+	define('QR_MODE_8', 2);
+	define('QR_MODE_KANJI', 3);
+	define('QR_MODE_STRUCTURE', 4);
+
+	// Levels of error correction.
+
+	define('QR_ECLEVEL_L', 0);
+	define('QR_ECLEVEL_M', 1);
+	define('QR_ECLEVEL_Q', 2);
+	define('QR_ECLEVEL_H', 3);
+	
+	// Supported output formats
+	
+	define('QR_FORMAT_TEXT', 0);
+	define('QR_FORMAT_PNG',  1);
+	
+	class qrstr {
+		public static function set(&$srctab, $x, $y, $repl, $replLen = false) {
+			$srctab[$y] = substr_replace($srctab[$y], ($replLen !== false)?substr($repl,0,$replLen):$repl, $x, ($replLen !== false)?$replLen:strlen($repl));
+		}
+	}	
+
+
+
+//---- merged_config.php -----------------------------
+
+
+
+
+/*
+ * PHP QR Code encoder
+ *
+ * Config file, tuned-up for merged verion
+ */
+     
+    define('QR_CACHEABLE', false);       // use cache - more disk reads but less CPU power, masks and format templates are stored there
+    define('QR_CACHE_DIR', false);       // used when QR_CACHEABLE === true
+    define('QR_LOG_DIR', false);         // default error logs dir   
+    
+    define('QR_FIND_BEST_MASK', true);                                                          // if true, estimates best mask (spec. default, but extremally slow; set to false to significant performance boost but (propably) worst quality code
+    define('QR_FIND_FROM_RANDOM', 2);                                                       // if false, checks all masks available, otherwise value tells count of masks need to be checked, mask id are got randomly
+    define('QR_DEFAULT_MASK', 2);                                                               // when QR_FIND_BEST_MASK === false
+                                                  
+    define('QR_PNG_MAXIMUM_SIZE',  1024);                                                       // maximum allowed png image width (in pixels), tune to make sure GD and PHP can handle such big images
+                                                  
+
+
+
+//---- qrtools.php -----------------------------
+
+
+
+
+/*
+ * PHP QR Code encoder
+ *
+ * Toolset, handy and debug utilites.
+ *
+ * PHP QR Code is distributed under LGPL 3
+ * Copyright (C) 2010 Dominik Dzienia <deltalab at poczta dot fm>
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 3 of the License, or any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+    class QRtools {
+    
+        //----------------------------------------------------------------------
+        public static function binarize($frame)
+        {
+            $len = count($frame);
+            foreach ($frame as &$frameLine) {
+                
+                for($i=0; $i<$len; $i++) {
+                    $frameLine[$i] = (ord($frameLine[$i])&1)?'1':'0';
+                }
+            }
+            
+            return $frame;
+        }
+        
+        //----------------------------------------------------------------------
+        public static function tcpdfBarcodeArray($code, $mode = 'QR,L', $tcPdfVersion = '4.5.037')
+        {
+            $barcode_array = array();
+            
+            if (!is_array($mode))
+                $mode = explode(',', $mode);
+                
+            $eccLevel = 'L';
+                
+            if (count($mode) > 1) {
+                $eccLevel = $mode[1];
+            }
+                
+            $qrTab = QRcode::text($code, false, $eccLevel);
+            $size = count($qrTab);
+                
+            $barcode_array['num_rows'] = $size;
+            $barcode_array['num_cols'] = $size;
+            $barcode_array['bcode'] = array();
+                
+            foreach ($qrTab as $line) {
+                $arrAdd = array();
+                foreach(str_split($line) as $char)
+                    $arrAdd[] = ($char=='1')?1:0;
+                $barcode_array['bcode'][] = $arrAdd;
+            }
+                    
+            return $barcode_array;
+        }
+        
+        //----------------------------------------------------------------------
+        public static function clearCache()
+        {
+            self::$frames = array();
+        }
+        
+        //----------------------------------------------------------------------
+        public static function buildCache()
+        {
+			QRtools::markTime('before_build_cache');
+			
+			$mask = new QRmask();
+            for ($a=1; $a <= QRSPEC_VERSION_MAX; $a++) {
+                $frame = QRspec::newFrame($a);
+                if (QR_IMAGE) {
+                    $fileName = QR_CACHE_DIR.'frame_'.$a.'.png';
+                    QRimage::png(self::binarize($frame), $fileName, 1, 0);
+                }
+				
+				$width = count($frame);
+				$bitMask = array_fill(0, $width, array_fill(0, $width, 0));
+				for ($maskNo=0; $maskNo<8; $maskNo++)
+					$mask->makeMaskNo($maskNo, $width, $frame, $bitMask, true);
+            }
+			
+			QRtools::markTime('after_build_cache');
+        }
+
+        //----------------------------------------------------------------------
+        public static function log($outfile, $err)
+        {
+            if (QR_LOG_DIR !== false) {
+                if ($err != '') {
+                    if ($outfile !== false) {
+                        file_put_contents(QR_LOG_DIR.basename($outfile).'-errors.txt', date('Y-m-d H:i:s').': '.$err, FILE_APPEND);
+                    } else {
+                        file_put_contents(QR_LOG_DIR.'errors.txt', date('Y-m-d H:i:s').': '.$err, FILE_APPEND);
+                    }
+                }    
+            }
+        }
+        
+        //----------------------------------------------------------------------
+        public static function dumpMask($frame) 
+        {
+            $width = count($frame);
+            for($y=0;$y<$width;$y++) {
+                for($x=0;$x<$width;$x++) {
+                    echo ord($frame[$y][$x]).',';
+                }
+            }
+        }
+        
+        //----------------------------------------------------------------------
+        public static function markTime($markerId)
+        {
+            list($usec, $sec) = explode(" ", microtime());
+            $time = ((float)$usec + (float)$sec);
+            
+            if (!isset($GLOBALS['qr_time_bench']))
+                $GLOBALS['qr_time_bench'] = array();
+            
+            $GLOBALS['qr_time_bench'][$markerId] = $time;
+        }
+        
+        //----------------------------------------------------------------------
+        public static function timeBenchmark()
+        {
+            self::markTime('finish');
+        
+            $lastTime = 0;
+            $startTime = 0;
+            $p = 0;
+
+            echo '<table cellpadding="3" cellspacing="1">
+                    <thead><tr style="border-bottom:1px solid silver"><td colspan="2" style="text-align:center">BENCHMARK</td></tr></thead>
+                    <tbody>';
+
+            foreach($GLOBALS['qr_time_bench'] as $markerId=>$thisTime) {
+                if ($p > 0) {
+                    echo '<tr><th style="text-align:right">till '.$markerId.': </th><td>'.number_format($thisTime-$lastTime, 6).'s</td></tr>';
+                } else {
+                    $startTime = $thisTime;
+                }
+                
+                $p++;
+                $lastTime = $thisTime;
+            }
+            
+            echo '</tbody><tfoot>
+                <tr style="border-top:2px solid black"><th style="text-align:right">TOTAL: </th><td>'.number_format($lastTime-$startTime, 6).'s</td></tr>
+            </tfoot>
+            </table>';
+        }
+        
+    }
+    
+    //##########################################################################
+    
+    QRtools::markTime('start');
+    
+
+
+
+//---- qrspec.php -----------------------------
+
+
+
+
+/*
+ * PHP QR Code encoder
+ *
+ * QR Code specifications
+ *
+ * Based on libqrencode C library distributed under LGPL 2.1
+ * Copyright (C) 2006, 2007, 2008, 2009 Kentaro Fukuchi <fukuchi@megaui.net>
+ *
+ * PHP QR Code is distributed under LGPL 3
+ * Copyright (C) 2010 Dominik Dzienia <deltalab at poczta dot fm>
+ *
+ * The following data / specifications are taken from
+ * "Two dimensional symbol -- QR-code -- Basic Specification" (JIS X0510:2004)
+ *  or
+ * "Automatic identification and data capture techniques -- 
+ *  QR Code 2005 bar code symbology specification" (ISO/IEC 18004:2006)
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 3 of the License, or any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+ 
+    define('QRSPEC_VERSION_MAX', 40);
+    define('QRSPEC_WIDTH_MAX',   177);
+
+    define('QRCAP_WIDTH',        0);
+    define('QRCAP_WORDS',        1);
+    define('QRCAP_REMINDER',     2);
+    define('QRCAP_EC',           3);
+
+    class QRspec {
+    
+        public static $capacity = array(
+            array(  0,    0, 0, array(   0,    0,    0,    0)),
+            array( 21,   26, 0, array(   7,   10,   13,   17)), // 1
+            array( 25,   44, 7, array(  10,   16,   22,   28)),
+            array( 29,   70, 7, array(  15,   26,   36,   44)),
+            array( 33,  100, 7, array(  20,   36,   52,   64)),
+            array( 37,  134, 7, array(  26,   48,   72,   88)), // 5
+            array( 41,  172, 7, array(  36,   64,   96,  112)),
+            array( 45,  196, 0, array(  40,   72,  108,  130)),
+            array( 49,  242, 0, array(  48,   88,  132,  156)),
+            array( 53,  292, 0, array(  60,  110,  160,  192)),
+            array( 57,  346, 0, array(  72,  130,  192,  224)), //10
+            array( 61,  404, 0, array(  80,  150,  224,  264)),
+            array( 65,  466, 0, array(  96,  176,  260,  308)),
+            array( 69,  532, 0, array( 104,  198,  288,  352)),
+            array( 73,  581, 3, array( 120,  216,  320,  384)),
+            array( 77,  655, 3, array( 132,  240,  360,  432)), //15
+            array( 81,  733, 3, array( 144,  280,  408,  480)),
+            array( 85,  815, 3, array( 168,  308,  448,  532)),
+            array( 89,  901, 3, array( 180,  338,  504,  588)),
+            array( 93,  991, 3, array( 196,  364,  546,  650)),
+            array( 97, 1085, 3, array( 224,  416,  600,  700)), //20
+            array(101, 1156, 4, array( 224,  442,  644,  750)),
+            array(105, 1258, 4, array( 252,  476,  690,  816)),
+            array(109, 1364, 4, array( 270,  504,  750,  900)),
+            array(113, 1474, 4, array( 300,  560,  810,  960)),
+            array(117, 1588, 4, array( 312,  588,  870, 1050)), //25
+            array(121, 1706, 4, array( 336,  644,  952, 1110)),
+            array(125, 1828, 4, array( 360,  700, 1020, 1200)),
+            array(129, 1921, 3, array( 390,  728, 1050, 1260)),
+            array(133, 2051, 3, array( 420,  784, 1140, 1350)),
+            array(137, 2185, 3, array( 450,  812, 1200, 1440)), //30
+            array(141, 2323, 3, array( 480,  868, 1290, 1530)),
+            array(145, 2465, 3, array( 510,  924, 1350, 1620)),
+            array(149, 2611, 3, array( 540,  980, 1440, 1710)),
+            array(153, 2761, 3, array( 570, 1036, 1530, 1800)),
+            array(157, 2876, 0, array( 570, 1064, 1590, 1890)), //35
+            array(161, 3034, 0, array( 600, 1120, 1680, 1980)),
+            array(165, 3196, 0, array( 630, 1204, 1770, 2100)),
+            array(169, 3362, 0, array( 660, 1260, 1860, 2220)),
+            array(173, 3532, 0, array( 720, 1316, 1950, 2310)),
+            array(177, 3706, 0, array( 750, 1372, 2040, 2430)) //40
+        );
+        
+        //----------------------------------------------------------------------
+        public static function getDataLength($version, $level)
+        {
+            return self::$capacity[$version][QRCAP_WORDS] - self::$capacity[$version][QRCAP_EC][$level];
+        }
+        
+        //----------------------------------------------------------------------
+        public static function getECCLength($version, $level)
+        {
+            return self::$capacity[$version][QRCAP_EC][$level];
+        }
+        
+        //----------------------------------------------------------------------
+        public static function getWidth($version)
+        {
+            return self::$capacity[$version][QRCAP_WIDTH];
+        }
+        
+        //----------------------------------------------------------------------
+        public static function getRemainder($version)
+        {
+            return self::$capacity[$version][QRCAP_REMINDER];
+        }
+        
+        //----------------------------------------------------------------------
+        public static function getMinimumVersion($size, $level)
+        {
+
+            for($i=1; $i<= QRSPEC_VERSION_MAX; $i++) {
+                $words  = self::$capacity[$i][QRCAP_WORDS] - self::$capacity[$i][QRCAP_EC][$level];
+                if($words >= $size) 
+                    return $i;
+            }
+
+            return -1;
+        }
+    
+        //######################################################################
+        
+        public static $lengthTableBits = array(
+            array(10, 12, 14),
+            array( 9, 11, 13),
+            array( 8, 16, 16),
+            array( 8, 10, 12)
+        );
+        
+        //----------------------------------------------------------------------
+        public static function lengthIndicator($mode, $version)
+        {
+            if ($mode == QR_MODE_STRUCTURE)
+                return 0;
+                
+            if ($version <= 9) {
+                $l = 0;
+            } else if ($version <= 26) {
+                $l = 1;
+            } else {
+                $l = 2;
+            }
+
+            return self::$lengthTableBits[$mode][$l];
+        }
+        
+        //----------------------------------------------------------------------
+        public static function maximumWords($mode, $version)
+        {
+            if($mode == QR_MODE_STRUCTURE) 
+                return 3;
+                
+            if($version <= 9) {
+                $l = 0;
+            } else if($version <= 26) {
+                $l = 1;
+            } else {
+                $l = 2;
+            }
+
+            $bits = self::$lengthTableBits[$mode][$l];
+            $words = (1 << $bits) - 1;
+            
+            if($mode == QR_MODE_KANJI) {
+                $words *= 2; // the number of bytes is required
+            }
+
+            return $words;
+        }
+
+        // Error correction code -----------------------------------------------
+        // Table of the error correction code (Reed-Solomon block)
+        // See Table 12-16 (pp.30-36), JIS X0510:2004.
+
+        public static $eccTable = array(
+            array(array( 0,  0), array( 0,  0), array( 0,  0), array( 0,  0)),
+            array(array( 1,  0), array( 1,  0), array( 1,  0), array( 1,  0)), // 1
+            array(array( 1,  0), array( 1,  0), array( 1,  0), array( 1,  0)),
+            array(array( 1,  0), array( 1,  0), array( 2,  0), array( 2,  0)),
+            array(array( 1,  0), array( 2,  0), array( 2,  0), array( 4,  0)),
+            array(array( 1,  0), array( 2,  0), array( 2,  2), array( 2,  2)), // 5
+            array(array( 2,  0), array( 4,  0), array( 4,  0), array( 4,  0)),
+            array(array( 2,  0), array( 4,  0), array( 2,  4), array( 4,  1)),
+            array(array( 2,  0), array( 2,  2), array( 4,  2), array( 4,  2)),
+            array(array( 2,  0), array( 3,  2), array( 4,  4), array( 4,  4)),
+            array(array( 2,  2), array( 4,  1), array( 6,  2), array( 6,  2)), //10
+            array(array( 4,  0), array( 1,  4), array( 4,  4), array( 3,  8)),
+            array(array( 2,  2), array( 6,  2), array( 4,  6), array( 7,  4)),
+            array(array( 4,  0), array( 8,  1), array( 8,  4), array(12,  4)),
+            array(array( 3,  1), array( 4,  5), array(11,  5), array(11,  5)),
+            array(array( 5,  1), array( 5,  5), array( 5,  7), array(11,  7)), //15
+            array(array( 5,  1), array( 7,  3), array(15,  2), array( 3, 13)),
+            array(array( 1,  5), array(10,  1), array( 1, 15), array( 2, 17)),
+            array(array( 5,  1), array( 9,  4), array(17,  1), array( 2, 19)),
+            array(array( 3,  4), array( 3, 11), array(17,  4), array( 9, 16)),
+            array(array( 3,  5), array( 3, 13), array(15,  5), array(15, 10)), //20
+            array(array( 4,  4), array(17,  0), array(17,  6), array(19,  6)),
+            array(array( 2,  7), array(17,  0), array( 7, 16), array(34,  0)),
+            array(array( 4,  5), array( 4, 14), array(11, 14), array(16, 14)),
+            array(array( 6,  4), array( 6, 14), array(11, 16), array(30,  2)),
+            array(array( 8,  4), array( 8, 13), array( 7, 22), array(22, 13)), //25
+            array(array(10,  2), array(19,  4), array(28,  6), array(33,  4)),
+            array(array( 8,  4), array(22,  3), array( 8, 26), array(12, 28)),
+            array(array( 3, 10), array( 3, 23), array( 4, 31), array(11, 31)),
+            array(array( 7,  7), array(21,  7), array( 1, 37), array(19, 26)),
+            array(array( 5, 10), array(19, 10), array(15, 25), array(23, 25)), //30
+            array(array(13,  3), array( 2, 29), array(42,  1), array(23, 28)),
+            array(array(17,  0), array(10, 23), array(10, 35), array(19, 35)),
+            array(array(17,  1), array(14, 21), array(29, 19), array(11, 46)),
+            array(array(13,  6), array(14, 23), array(44,  7), array(59,  1)),
+            array(array(12,  7), array(12, 26), array(39, 14), array(22, 41)), //35
+            array(array( 6, 14), array( 6, 34), array(46, 10), array( 2, 64)),
+            array(array(17,  4), array(29, 14), array(49, 10), array(24, 46)),
+            array(array( 4, 18), array(13, 32), array(48, 14), array(42, 32)),
+            array(array(20,  4), array(40,  7), array(43, 22), array(10, 67)),
+            array(array(19,  6), array(18, 31), array(34, 34), array(20, 61)),//40
+        );                                                                       
+
+        //----------------------------------------------------------------------
+        // CACHEABLE!!!
+        
+        public static function getEccSpec($version, $level, array &$spec)
+        {
+            if (count($spec) < 5) {
+                $spec = array(0,0,0,0,0);
+            }
+
+            $b1   = self::$eccTable[$version][$level][0];
+            $b2   = self::$eccTable[$version][$level][1];
+            $data = self::getDataLength($version, $level);
+            $ecc  = self::getECCLength($version, $level);
+
+            if($b2 == 0) {
+                $spec[0] = $b1;
+                $spec[1] = (int)($data / $b1);
+                $spec[2] = (int)($ecc / $b1);
+                $spec[3] = 0; 
+                $spec[4] = 0;
+            } else {
+                $spec[0] = $b1;
+                $spec[1] = (int)($data / ($b1 + $b2));
+                $spec[2] = (int)($ecc  / ($b1 + $b2));
+                $spec[3] = $b2;
+                $spec[4] = $spec[1] + 1;
+            }
+        }
+
+        // Alignment pattern ---------------------------------------------------
+
+        // Positions of alignment patterns.
+        // This array includes only the second and the third position of the 
+        // alignment patterns. Rest of them can be calculated from the distance 
+        // between them.
+         
+        // See Table 1 in Appendix E (pp.71) of JIS X0510:2004.
+         
+        public static $alignmentPattern = array(      
+            array( 0,  0),
+            array( 0,  0), array(18,  0), array(22,  0), array(26,  0), array(30,  0), // 1- 5
+            array(34,  0), array(22, 38), array(24, 42), array(26, 46), array(28, 50), // 6-10
+            array(30, 54), array(32, 58), array(34, 62), array(26, 46), array(26, 48), //11-15
+            array(26, 50), array(30, 54), array(30, 56), array(30, 58), array(34, 62), //16-20
+            array(28, 50), array(26, 50), array(30, 54), array(28, 54), array(32, 58), //21-25
+            array(30, 58), array(34, 62), array(26, 50), array(30, 54), array(26, 52), //26-30
+            array(30, 56), array(34, 60), array(30, 58), array(34, 62), array(30, 54), //31-35
+            array(24, 50), array(28, 54), array(32, 58), array(26, 54), array(30, 58), //35-40
+        );                                                                                  
+
+        
+        /** --------------------------------------------------------------------
+         * Put an alignment marker.
+         * @param frame
+         * @param width
+         * @param ox,oy center coordinate of the pattern
+         */
+        public static function putAlignmentMarker(array &$frame, $ox, $oy)
+        {
+            $finder = array(
+                "\xa1\xa1\xa1\xa1\xa1",
+                "\xa1\xa0\xa0\xa0\xa1",
+                "\xa1\xa0\xa1\xa0\xa1",
+                "\xa1\xa0\xa0\xa0\xa1",
+                "\xa1\xa1\xa1\xa1\xa1"
+            );                        
+            
+            $yStart = $oy-2;         
+            $xStart = $ox-2;
+            
+            for($y=0; $y<5; $y++) {
+                QRstr::set($frame, $xStart, $yStart+$y, $finder[$y]);
+            }
+        }
+
+        //----------------------------------------------------------------------
+        public static function putAlignmentPattern($version, &$frame, $width)
+        {
+            if($version < 2)
+                return;
+
+            $d = self::$alignmentPattern[$version][1] - self::$alignmentPattern[$version][0];
+            if($d < 0) {
+                $w = 2;
+            } else {
+                $w = (int)(($width - self::$alignmentPattern[$version][0]) / $d + 2);
+            }
+
+            if($w * $w - 3 == 1) {
+                $x = self::$alignmentPattern[$version][0];
+                $y = self::$alignmentPattern[$version][0];
+                self::putAlignmentMarker($frame, $x, $y);
+                return;
+            }
+
+            $cx = self::$alignmentPattern[$version][0];
+            for($x=1; $x<$w - 1; $x++) {
+                self::putAlignmentMarker($frame, 6, $cx);
+                self::putAlignmentMarker($frame, $cx,  6);
+                $cx += $d;
+            }
+
+            $cy = self::$alignmentPattern[$version][0];
+            for($y=0; $y<$w-1; $y++) {
+                $cx = self::$alignmentPattern[$version][0];
+                for($x=0; $x<$w-1; $x++) {
+                    self::putAlignmentMarker($frame, $cx, $cy);
+                    $cx += $d;
+                }
+                $cy += $d;
+            }
+        }
+
+        // Version information pattern -----------------------------------------
+
+		// Version information pattern (BCH coded).
+        // See Table 1 in Appendix D (pp.68) of JIS X0510:2004.
+        
+		// size: [QRSPEC_VERSION_MAX - 6]
+		
+        public static $versionPattern = array(
+            0x07c94, 0x085bc, 0x09a99, 0x0a4d3, 0x0bbf6, 0x0c762, 0x0d847, 0x0e60d,
+            0x0f928, 0x10b78, 0x1145d, 0x12a17, 0x13532, 0x149a6, 0x15683, 0x168c9,
+            0x177ec, 0x18ec4, 0x191e1, 0x1afab, 0x1b08e, 0x1cc1a, 0x1d33f, 0x1ed75,
+            0x1f250, 0x209d5, 0x216f0, 0x228ba, 0x2379f, 0x24b0b, 0x2542e, 0x26a64,
+            0x27541, 0x28c69
+        );
+
+        //----------------------------------------------------------------------
+        public static function getVersionPattern($version)
+        {
+            if($version < 7 || $version > QRSPEC_VERSION_MAX)
+                return 0;
+
+            return self::$versionPattern[$version -7];
+        }
+
+        // Format information --------------------------------------------------
+        // See calcFormatInfo in tests/test_qrspec.c (orginal qrencode c lib)
+        
+        public static $formatInfo = array(
+            array(0x77c4, 0x72f3, 0x7daa, 0x789d, 0x662f, 0x6318, 0x6c41, 0x6976),
+            array(0x5412, 0x5125, 0x5e7c, 0x5b4b, 0x45f9, 0x40ce, 0x4f97, 0x4aa0),
+            array(0x355f, 0x3068, 0x3f31, 0x3a06, 0x24b4, 0x2183, 0x2eda, 0x2bed),
+            array(0x1689, 0x13be, 0x1ce7, 0x19d0, 0x0762, 0x0255, 0x0d0c, 0x083b)
+        );
+
+        public static function getFormatInfo($mask, $level)
+        {
+            if($mask < 0 || $mask > 7)
+                return 0;
+                
+            if($level < 0 || $level > 3)
+                return 0;                
+
+            return self::$formatInfo[$level][$mask];
+        }
+
+        // Frame ---------------------------------------------------------------
+        // Cache of initial frames.
+         
+        public static $frames = array();
+
+        /** --------------------------------------------------------------------
+         * Put a finder pattern.
+         * @param frame
+         * @param width
+         * @param ox,oy upper-left coordinate of the pattern
+         */
+        public static function putFinderPattern(&$frame, $ox, $oy)
+        {
+            $finder = array(
+                "\xc1\xc1\xc1\xc1\xc1\xc1\xc1",
+                "\xc1\xc0\xc0\xc0\xc0\xc0\xc1",
+                "\xc1\xc0\xc1\xc1\xc1\xc0\xc1",
+                "\xc1\xc0\xc1\xc1\xc1\xc0\xc1",
+                "\xc1\xc0\xc1\xc1\xc1\xc0\xc1",
+                "\xc1\xc0\xc0\xc0\xc0\xc0\xc1",
+                "\xc1\xc1\xc1\xc1\xc1\xc1\xc1"
+            );                            
+            
+            for($y=0; $y<7; $y++) {
+                QRstr::set($frame, $ox, $oy+$y, $finder[$y]);
+            }
+        }
+
+        //----------------------------------------------------------------------
+        public static function createFrame($version)
+        {
+            $width = self::$capacity[$version][QRCAP_WIDTH];
+            $frameLine = str_repeat ("\0", $width);
+            $frame = array_fill(0, $width, $frameLine);
+
+            // Finder pattern
+            self::putFinderPattern($frame, 0, 0);
+            self::putFinderPattern($frame, $width - 7, 0);
+            self::putFinderPattern($frame, 0, $width - 7);
+            
+            // Separator
+            $yOffset = $width - 7;
+            
+            for($y=0; $y<7; $y++) {
+                $frame[$y][7] = "\xc0";
+                $frame[$y][$width - 8] = "\xc0";
+                $frame[$yOffset][7] = "\xc0";
+                $yOffset++;
+            }
+            
+            $setPattern = str_repeat("\xc0", 8);
+            
+            QRstr::set($frame, 0, 7, $setPattern);
+            QRstr::set($frame, $width-8, 7, $setPattern);
+            QRstr::set($frame, 0, $width - 8, $setPattern);
+        
+            // Format info
+            $setPattern = str_repeat("\x84", 9);
+            QRstr::set($frame, 0, 8, $setPattern);
+            QRstr::set($frame, $width - 8, 8, $setPattern, 8);
+            
+            $yOffset = $width - 8;
+
+            for($y=0; $y<8; $y++,$yOffset++) {
+                $frame[$y][8] = "\x84";
+                $frame[$yOffset][8] = "\x84";
+            }
+
+            // Timing pattern  
+            
+            for($i=1; $i<$width-15; $i++) {
+                $frame[6][7+$i] = chr(0x90 | ($i & 1));
+                $frame[7+$i][6] = chr(0x90 | ($i & 1));
+            }
+            
+            // Alignment pattern  
+            self::putAlignmentPattern($version, $frame, $width);
+            
+            // Version information 
+            if($version >= 7) {
+                $vinf = self::getVersionPattern($version);
+
+                $v = $vinf;
+                
+                for($x=0; $x<6; $x++) {
+                    for($y=0; $y<3; $y++) {
+                        $frame[($width - 11)+$y][$x] = chr(0x88 | ($v & 1));
+                        $v = $v >> 1;
+                    }
+                }
+
+                $v = $vinf;
+                for($y=0; $y<6; $y++) {
+                    for($x=0; $x<3; $x++) {
+                        $frame[$y][$x+($width - 11)] = chr(0x88 | ($v & 1));
+                        $v = $v >> 1;
+                    }
+                }
+            }
+    
+            // and a little bit...  
+            $frame[$width - 8][8] = "\x81";
+            
+            return $frame;
+        }
+
+        //----------------------------------------------------------------------
+        public static function debug($frame, $binary_mode = false)
+        {
+            if ($binary_mode) {
+            
+                    foreach ($frame as &$frameLine) {
+                        $frameLine = join('<span class="m">&nbsp;&nbsp;</span>', explode('0', $frameLine));
+                        $frameLine = join('&#9608;&#9608;', explode('1', $frameLine));
+                    }
+                    
+                    ?>
+                <style>
+                    .m { background-color: white; }
+                </style>
+                <?php
+                    echo '<pre><tt><br/ ><br/ ><br/ >&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;';
+                    echo join("<br/ >&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;", $frame);
+                    echo '</tt></pre><br/ ><br/ ><br/ ><br/ ><br/ ><br/ >';
+            
+            } else {
+            
+                foreach ($frame as &$frameLine) {
+                    $frameLine = join('<span class="m">&nbsp;</span>',  explode("\xc0", $frameLine));
+                    $frameLine = join('<span class="m">&#9618;</span>', explode("\xc1", $frameLine));
+                    $frameLine = join('<span class="p">&nbsp;</span>',  explode("\xa0", $frameLine));
+                    $frameLine = join('<span class="p">&#9618;</span>', explode("\xa1", $frameLine));
+                    $frameLine = join('<span class="s">&#9671;</span>', explode("\x84", $frameLine)); //format 0
+                    $frameLine = join('<span class="s">&#9670;</span>', explode("\x85", $frameLine)); //format 1
+                    $frameLine = join('<span class="x">&#9762;</span>', explode("\x81", $frameLine)); //special bit
+                    $frameLine = join('<span class="c">&nbsp;</span>',  explode("\x90", $frameLine)); //clock 0
+                    $frameLine = join('<span class="c">&#9719;</span>', explode("\x91", $frameLine)); //clock 1
+                    $frameLine = join('<span class="f">&nbsp;</span>',  explode("\x88", $frameLine)); //version
+                    $frameLine = join('<span class="f">&#9618;</span>', explode("\x89", $frameLine)); //version
+                    $frameLine = join('&#9830;', explode("\x01", $frameLine));
+                    $frameLine = join('&#8901;', explode("\0", $frameLine));
+                }
+                
+                ?>
+                <style>
+                    .p { background-color: yellow; }
+                    .m { background-color: #00FF00; }
+                    .s { background-color: #FF0000; }
+                    .c { background-color: aqua; }
+                    .x { background-color: pink; }
+                    .f { background-color: gold; }
+                </style>
+                <?php
+                echo "<pre><tt>";
+                echo join("<br/ >", $frame);
+                echo "</tt></pre>";
+            
+            }
+        }
+
+        //----------------------------------------------------------------------
+        public static function serial($frame)
+        {
+            return gzcompress(join("\n", $frame), 9);
+        }
+        
+        //----------------------------------------------------------------------
+        public static function unserial($code)
+        {
+            return explode("\n", gzuncompress($code));
+        }
+        
+        //----------------------------------------------------------------------
+        public static function newFrame($version)
+        {
+            if($version < 1 || $version > QRSPEC_VERSION_MAX) 
+                return null;
+
+            if(!isset(self::$frames[$version])) {
+                
+                $fileName = QR_CACHE_DIR.'frame_'.$version.'.dat';
+                
+                if (QR_CACHEABLE) {
+                    if (file_exists($fileName)) {
+                        self::$frames[$version] = self::unserial(file_get_contents($fileName));
+                    } else {
+                        self::$frames[$version] = self::createFrame($version);
+                        file_put_contents($fileName, self::serial(self::$frames[$version]));
+                    }
+                } else {
+                    self::$frames[$version] = self::createFrame($version);
+                }
+            }
+            
+            if(is_null(self::$frames[$version]))
+                return null;
+
+            return self::$frames[$version];
+        }
+
+        //----------------------------------------------------------------------
+        public static function rsBlockNum($spec)     { return $spec[0] + $spec[3]; }
+        public static function rsBlockNum1($spec)    { return $spec[0]; }
+        public static function rsDataCodes1($spec)   { return $spec[1]; }
+        public static function rsEccCodes1($spec)    { return $spec[2]; }
+        public static function rsBlockNum2($spec)    { return $spec[3]; }
+        public static function rsDataCodes2($spec)   { return $spec[4]; }
+        public static function rsEccCodes2($spec)    { return $spec[2]; }
+        public static function rsDataLength($spec)   { return ($spec[0] * $spec[1]) + ($spec[3] * $spec[4]);    }
+        public static function rsEccLength($spec)    { return ($spec[0] + $spec[3]) * $spec[2]; }
+        
+    }
+
+
+
+//---- qrimage.php -----------------------------
+
+
+
+
+/*
+ * PHP QR Code encoder
+ *
+ * Image output of code using GD2
+ *
+ * PHP QR Code is distributed under LGPL 3
+ * Copyright (C) 2010 Dominik Dzienia <deltalab at poczta dot fm>
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 3 of the License, or any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+ 
+    define('QR_IMAGE', true);
+
+    class QRimage {
+    
+        //----------------------------------------------------------------------
+        public static function png($frame, $filename = false, $pixelPerPoint = 4, $outerFrame = 4,$saveandprint=FALSE) 
+        {
+            $image = self::image($frame, $pixelPerPoint, $outerFrame);
+            
+            if ($filename === false) {
+                Header("Content-type: image/png");
+                ImagePng($image);
+            } else {
+                if($saveandprint===TRUE){
+                    ImagePng($image, $filename);
+                    header("Content-type: image/png");
+                    ImagePng($image);
+                }else{
+                    ImagePng($image, $filename);
+                }
+            }
+            
+            ImageDestroy($image);
+        }
+    
+        //----------------------------------------------------------------------
+        public static function jpg($frame, $filename = false, $pixelPerPoint = 8, $outerFrame = 4, $q = 85) 
+        {
+            $image = self::image($frame, $pixelPerPoint, $outerFrame);
+            
+            if ($filename === false) {
+                Header("Content-type: image/jpeg");
+                ImageJpeg($image, null, $q);
+            } else {
+                ImageJpeg($image, $filename, $q);            
+            }
+            
+            ImageDestroy($image);
+        }
+    
+        //----------------------------------------------------------------------
+        private static function image($frame, $pixelPerPoint = 4, $outerFrame = 4) 
+        {
+            $h = count($frame);
+            $w = strlen($frame[0]);
+            
+            $imgW = $w + 2*$outerFrame;
+            $imgH = $h + 2*$outerFrame;
+            
+            $base_image =ImageCreate($imgW, $imgH);
+            
+            $col[0] = ImageColorAllocate($base_image,255,255,255);
+            $col[1] = ImageColorAllocate($base_image,0,0,0);
+
+            imagefill($base_image, 0, 0, $col[0]);
+
+            for($y=0; $y<$h; $y++) {
+                for($x=0; $x<$w; $x++) {
+                    if ($frame[$y][$x] == '1') {
+                        ImageSetPixel($base_image,$x+$outerFrame,$y+$outerFrame,$col[1]); 
+                    }
+                }
+            }
+            
+            $target_image =ImageCreate($imgW * $pixelPerPoint, $imgH * $pixelPerPoint);
+            ImageCopyResized($target_image, $base_image, 0, 0, 0, 0, $imgW * $pixelPerPoint, $imgH * $pixelPerPoint, $imgW, $imgH);
+            ImageDestroy($base_image);
+            
+            return $target_image;
+        }
+    }
+
+
+
+//---- qrinput.php -----------------------------
+
+
+
+
+/*
+ * PHP QR Code encoder
+ *
+ * Input encoding class
+ *
+ * Based on libqrencode C library distributed under LGPL 2.1
+ * Copyright (C) 2006, 2007, 2008, 2009 Kentaro Fukuchi <fukuchi@megaui.net>
+ *
+ * PHP QR Code is distributed under LGPL 3
+ * Copyright (C) 2010 Dominik Dzienia <deltalab at poczta dot fm>
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 3 of the License, or any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+ 
+    define('STRUCTURE_HEADER_BITS',  20);
+    define('MAX_STRUCTURED_SYMBOLS', 16);
+
+    class QRinputItem {
+    
+        public $mode;
+        public $size;
+        public $data;
+        public $bstream;
+
+        public function __construct($mode, $size, $data, $bstream = null) 
+        {
+            $setData = array_slice($data, 0, $size);
+            
+            if (count($setData) < $size) {
+                $setData = array_merge($setData, array_fill(0,$size-count($setData),0));
+            }
+        
+            if(!QRinput::check($mode, $size, $setData)) {
+                throw new Exception('Error m:'.$mode.',s:'.$size.',d:'.join(',',$setData));
+                return null;
+            }
+            
+            $this->mode = $mode;
+            $this->size = $size;
+            $this->data = $setData;
+            $this->bstream = $bstream;
+        }
+        
+        //----------------------------------------------------------------------
+        public function encodeModeNum($version)
+        {
+            try {
+            
+                $words = (int)($this->size / 3);
+                $bs = new QRbitstream();
+                
+                $val = 0x1;
+                $bs->appendNum(4, $val);
+                $bs->appendNum(QRspec::lengthIndicator(QR_MODE_NUM, $version), $this->size);
+
+                for($i=0; $i<$words; $i++) {
+                    $val  = (ord($this->data[$i*3  ]) - ord('0')) * 100;
+                    $val += (ord($this->data[$i*3+1]) - ord('0')) * 10;
+                    $val += (ord($this->data[$i*3+2]) - ord('0'));
+                    $bs->appendNum(10, $val);
+                }
+
+                if($this->size - $words * 3 == 1) {
+                    $val = ord($this->data[$words*3]) - ord('0');
+                    $bs->appendNum(4, $val);
+                } else if($this->size - $words * 3 == 2) {
+                    $val  = (ord($this->data[$words*3  ]) - ord('0')) * 10;
+                    $val += (ord($this->data[$words*3+1]) - ord('0'));
+                    $bs->appendNum(7, $val);
+                }
+
+                $this->bstream = $bs;
+                return 0;
+                
+            } catch (Exception $e) {
+                return -1;
+            }
+        }
+        
+        //----------------------------------------------------------------------
+        public function encodeModeAn($version)
+        {
+            try {
+                $words = (int)($this->size / 2);
+                $bs = new QRbitstream();
+                
+                $bs->appendNum(4, 0x02);
+                $bs->appendNum(QRspec::lengthIndicator(QR_MODE_AN, $version), $this->size);
+
+                for($i=0; $i<$words; $i++) {
+                    $val  = (int)QRinput::lookAnTable(ord($this->data[$i*2  ])) * 45;
+                    $val += (int)QRinput::lookAnTable(ord($this->data[$i*2+1]));
+
+                    $bs->appendNum(11, $val);
+                }
+
+                if($this->size & 1) {
+                    $val = QRinput::lookAnTable(ord($this->data[$words * 2]));
+                    $bs->appendNum(6, $val);
+                }
+        
+                $this->bstream = $bs;
+                return 0;
+            
+            } catch (Exception $e) {
+                return -1;
+            }
+        }
+        
+        //----------------------------------------------------------------------
+        public function encodeMode8($version)
+        {
+            try {
+                $bs = new QRbitstream();
+
+                $bs->appendNum(4, 0x4);
+                $bs->appendNum(QRspec::lengthIndicator(QR_MODE_8, $version), $this->size);
+
+                for($i=0; $i<$this->size; $i++) {
+                    $bs->appendNum(8, ord($this->data[$i]));
+                }
+
+                $this->bstream = $bs;
+                return 0;
+            
+            } catch (Exception $e) {
+                return -1;
+            }
+        }
+        
+        //----------------------------------------------------------------------
+        public function encodeModeKanji($version)
+        {
+            try {
+
+                $bs = new QRbitrtream();
+                
+                $bs->appendNum(4, 0x8);
+                $bs->appendNum(QRspec::lengthIndicator(QR_MODE_KANJI, $version), (int)($this->size / 2));
+
+                for($i=0; $i<$this->size; $i+=2) {
+                    $val = (ord($this->data[$i]) << 8) | ord($this->data[$i+1]);
+                    if($val <= 0x9ffc) {
+                        $val -= 0x8140;
+                    } else {
+                        $val -= 0xc140;
+                    }
+                    
+                    $h = ($val >> 8) * 0xc0;
+                    $val = ($val & 0xff) + $h;
+
+                    $bs->appendNum(13, $val);
+                }
+
+                $this->bstream = $bs;
+                return 0;
+            
+            } catch (Exception $e) {
+                return -1;
+            }
+        }
+
+        //----------------------------------------------------------------------
+        public function encodeModeStructure()
+        {
+            try {
+                $bs =  new QRbitstream();
+                
+                $bs->appendNum(4, 0x03);
+                $bs->appendNum(4, ord($this->data[1]) - 1);
+                $bs->appendNum(4, ord($this->data[0]) - 1);
+                $bs->appendNum(8, ord($this->data[2]));
+
+                $this->bstream = $bs;
+                return 0;
+            
+            } catch (Exception $e) {
+                return -1;
+            }
+        }
+        
+        //----------------------------------------------------------------------
+        public function estimateBitStreamSizeOfEntry($version)
+        {
+            $bits = 0;
+
+            if($version == 0) 
+                $version = 1;
+
+            switch($this->mode) {
+                case QR_MODE_NUM:        $bits = QRinput::estimateBitsModeNum($this->size);    break;
+                case QR_MODE_AN:        $bits = QRinput::estimateBitsModeAn($this->size);    break;
+                case QR_MODE_8:            $bits = QRinput::estimateBitsMode8($this->size);    break;
+                case QR_MODE_KANJI:        $bits = QRinput::estimateBitsModeKanji($this->size);break;
+                case QR_MODE_STRUCTURE:    return STRUCTURE_HEADER_BITS;            
+                default:
+                    return 0;
+            }
+
+            $l = QRspec::lengthIndicator($this->mode, $version);
+            $m = 1 << $l;
+            $num = (int)(($this->size + $m - 1) / $m);
+
+            $bits += $num * (4 + $l);
+
+            return $bits;
+        }
+        
+        //----------------------------------------------------------------------
+        public function encodeBitStream($version)
+        {
+            try {
+            
+                unset($this->bstream);
+                $words = QRspec::maximumWords($this->mode, $version);
+                
+                if($this->size > $words) {
+                
+                    $st1 = new QRinputItem($this->mode, $words, $this->data);
+                    $st2 = new QRinputItem($this->mode, $this->size - $words, array_slice($this->data, $words));
+
+                    $st1->encodeBitStream($version);
+                    $st2->encodeBitStream($version);
+                    
+                    $this->bstream = new QRbitstream();
+                    $this->bstream->append($st1->bstream);
+                    $this->bstream->append($st2->bstream);
+                    
+                    unset($st1);
+                    unset($st2);
+                    
+                } else {
+                    
+                    $ret = 0;
+                    
+                    switch($this->mode) {
+                        case QR_MODE_NUM:        $ret = $this->encodeModeNum($version);    break;
+                        case QR_MODE_AN:        $ret = $this->encodeModeAn($version);    break;
+                        case QR_MODE_8:            $ret = $this->encodeMode8($version);    break;
+                        case QR_MODE_KANJI:        $ret = $this->encodeModeKanji($version);break;
+                        case QR_MODE_STRUCTURE:    $ret = $this->encodeModeStructure();    break;
+                        
+                        default:
+                            break;
+                    }
+                    
+                    if($ret < 0)
+                        return -1;
+                }
+
+                return $this->bstream->size();
+            
+            } catch (Exception $e) {
+                return -1;
+            }
+        }
+    };
+    
+    //##########################################################################
+
+    class QRinput {
+
+        public $items;
+        
+        private $version;
+        private $level;
+        
+        //----------------------------------------------------------------------
+        public function __construct($version = 0, $level = QR_ECLEVEL_L)
+        {
+            if ($version < 0 || $version > QRSPEC_VERSION_MAX || $level > QR_ECLEVEL_H) {
+                throw new Exception('Invalid version no');
+                return NULL;
+            }
+            
+            $this->version = $version;
+            $this->level = $level;
+        }
+        
+        //----------------------------------------------------------------------
+        public function getVersion()
+        {
+            return $this->version;
+        }
+        
+        //----------------------------------------------------------------------
+        public function setVersion($version)
+        {
+            if($version < 0 || $version > QRSPEC_VERSION_MAX) {
+                throw new Exception('Invalid version no');
+                return -1;
+            }
+
+            $this->version = $version;
+
+            return 0;
+        }
+        
+        //----------------------------------------------------------------------
+        public function getErrorCorrectionLevel()
+        {
+            return $this->level;
+        }
+
+        //----------------------------------------------------------------------
+        public function setErrorCorrectionLevel($level)
+        {
+            if($level > QR_ECLEVEL_H) {
+                throw new Exception('Invalid ECLEVEL');
+                return -1;
+            }
+
+            $this->level = $level;
+
+            return 0;
+        }
+        
+        //----------------------------------------------------------------------
+        public function appendEntry(QRinputItem $entry)
+        {
+            $this->items[] = $entry;
+        }
+        
+        //----------------------------------------------------------------------
+        public function append($mode, $size, $data)
+        {
+            try {
+                $entry = new QRinputItem($mode, $size, $data);
+                $this->items[] = $entry;
+                return 0;
+            } catch (Exception $e) {
+                return -1;
+            }
+        }
+        
+        //----------------------------------------------------------------------
+        
+        public function insertStructuredAppendHeader($size, $index, $parity)
+        {
+            if( $size > MAX_STRUCTURED_SYMBOLS ) {
+                throw new Exception('insertStructuredAppendHeader wrong size');
+            }
+            
+            if( $index <= 0 || $index > MAX_STRUCTURED_SYMBOLS ) {
+                throw new Exception('insertStructuredAppendHeader wrong index');
+            }
+
+            $buf = array($size, $index, $parity);
+            
+            try {
+                $entry = new QRinputItem(QR_MODE_STRUCTURE, 3, buf);
+                array_unshift($this->items, $entry);
+                return 0;
+            } catch (Exception $e) {
+                return -1;
+            }
+        }
+
+        //----------------------------------------------------------------------
+        public function calcParity()
+        {
+            $parity = 0;
+            
+            foreach($this->items as $item) {
+                if($item->mode != QR_MODE_STRUCTURE) {
+                    for($i=$item->size-1; $i>=0; $i--) {
+                        $parity ^= $item->data[$i];
+                    }
+                }
+            }
+
+            return $parity;
+        }
+        
+        //----------------------------------------------------------------------
+        public static function checkModeNum($size, $data)
+        {
+            for($i=0; $i<$size; $i++) {
+                if((ord($data[$i]) < ord('0')) || (ord($data[$i]) > ord('9'))){
+                    return false;
+                }
+            }
+
+            return true;
+        }
+
+        //----------------------------------------------------------------------
+        public static function estimateBitsModeNum($size)
+        {
+            $w = (int)$size / 3;
+            $bits = $w * 10;
+            
+            switch($size - $w * 3) {
+                case 1:
+                    $bits += 4;
+                    break;
+                case 2:
+                    $bits += 7;
+                    break;
+                default:
+                    break;
+            }
+
+            return $bits;
+        }
+        
+        //----------------------------------------------------------------------
+        public static $anTable = array(
+            -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
+            -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
+            36, -1, -1, -1, 37, 38, -1, -1, -1, -1, 39, 40, -1, 41, 42, 43,
+             0,  1,  2,  3,  4,  5,  6,  7,  8,  9, 44, -1, -1, -1, -1, -1,
+            -1, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24,
+            25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, -1, -1, -1, -1, -1,
+            -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
+            -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1
+        );
+        
+        //----------------------------------------------------------------------
+        public static function lookAnTable($c)
+        {
+            return (($c > 127)?-1:self::$anTable[$c]);
+        }
+        
+        //----------------------------------------------------------------------
+        public static function checkModeAn($size, $data)
+        {
+            for($i=0; $i<$size; $i++) {
+                if (self::lookAnTable(ord($data[$i])) == -1) {
+                    return false;
+                }
+            }
+
+            return true;
+        }
+        
+        //----------------------------------------------------------------------
+        public static function estimateBitsModeAn($size)
+        {
+            $w = (int)($size / 2);
+            $bits = $w * 11;
+            
+            if($size & 1) {
+                $bits += 6;
+            }
+
+            return $bits;
+        }
+    
+        //----------------------------------------------------------------------
+        public static function estimateBitsMode8($size)
+        {
+            return $size * 8;
+        }
+        
+        //----------------------------------------------------------------------
+        public function estimateBitsModeKanji($size)
+        {
+            return (int)(($size / 2) * 13);
+        }
+        
+        //----------------------------------------------------------------------
+        public static function checkModeKanji($size, $data)
+        {
+            if($size & 1)
+                return false;
+
+            for($i=0; $i<$size; $i+=2) {
+                $val = (ord($data[$i]) << 8) | ord($data[$i+1]);
+                if( $val < 0x8140 
+                || ($val > 0x9ffc && $val < 0xe040) 
+                || $val > 0xebbf) {
+                    return false;
+                }
+            }
+
+            return true;
+        }
+
+        /***********************************************************************
+         * Validation
+         **********************************************************************/
+
+        public static function check($mode, $size, $data)
+        {
+            if($size <= 0) 
+                return false;
+
+            switch($mode) {
+                case QR_MODE_NUM:       return self::checkModeNum($size, $data);   break;
+                case QR_MODE_AN:        return self::checkModeAn($size, $data);    break;
+                case QR_MODE_KANJI:     return self::checkModeKanji($size, $data); break;
+                case QR_MODE_8:         return true; break;
+                case QR_MODE_STRUCTURE: return true; break;
+                
+                default:
+                    break;
+            }
+
+            return false;
+        }
+        
+        
+        //----------------------------------------------------------------------
+        public function estimateBitStreamSize($version)
+        {
+            $bits = 0;
+
+            foreach($this->items as $item) {
+                $bits += $item->estimateBitStreamSizeOfEntry($version);
+            }
+
+            return $bits;
+        }
+        
+        //----------------------------------------------------------------------
+        public function estimateVersion()
+        {
+            $version = 0;
+            $prev = 0;
+            do {
+                $prev = $version;
+                $bits = $this->estimateBitStreamSize($prev);
+                $version = QRspec::getMinimumVersion((int)(($bits + 7) / 8), $this->level);
+                if ($version < 0) {
+                    return -1;
+                }
+            } while ($version > $prev);
+
+            return $version;
+        }
+        
+        //----------------------------------------------------------------------
+        public static function lengthOfCode($mode, $version, $bits)
+        {
+            $payload = $bits - 4 - QRspec::lengthIndicator($mode, $version);
+            switch($mode) {
+                case QR_MODE_NUM:
+                    $chunks = (int)($payload / 10);
+                    $remain = $payload - $chunks * 10;
+                    $size = $chunks * 3;
+                    if($remain >= 7) {
+                        $size += 2;
+                    } else if($remain >= 4) {
+                        $size += 1;
+                    }
+                    break;
+                case QR_MODE_AN:
+                    $chunks = (int)($payload / 11);
+                    $remain = $payload - $chunks * 11;
+                    $size = $chunks * 2;
+                    if($remain >= 6) 
+                        $size++;
+                    break;
+                case QR_MODE_8:
+                    $size = (int)($payload / 8);
+                    break;
+                case QR_MODE_KANJI:
+                    $size = (int)(($payload / 13) * 2);
+                    break;
+                case QR_MODE_STRUCTURE:
+                    $size = (int)($payload / 8);
+                    break;
+                default:
+                    $size = 0;
+                    break;
+            }
+            
+            $maxsize = QRspec::maximumWords($mode, $version);
+            if($size < 0) $size = 0;
+            if($size > $maxsize) $size = $maxsize;
+
+            return $size;
+        }
+        
+        //----------------------------------------------------------------------
+        public function createBitStream()
+        {
+            $total = 0;
+
+            foreach($this->items as $item) {
+                $bits = $item->encodeBitStream($this->version);
+                
+                if($bits < 0) 
+                    return -1;
+                    
+                $total += $bits;
+            }
+
+            return $total;
+        }
+        
+        //----------------------------------------------------------------------
+        public function convertData()
+        {
+            $ver = $this->estimateVersion();
+            if($ver > $this->getVersion()) {
+                $this->setVersion($ver);
+            }
+
+            for(;;) {
+                $bits = $this->createBitStream();
+                
+                if($bits < 0) 
+                    return -1;
+                    
+                $ver = QRspec::getMinimumVersion((int)(($bits + 7) / 8), $this->level);
+                if($ver < 0) {
+                    throw new Exception('WRONG VERSION');
+                    return -1;
+                } else if($ver > $this->getVersion()) {
+                    $this->setVersion($ver);
+                } else {
+                    break;
+                }
+            }
+
+            return 0;
+        }
+        
+        //----------------------------------------------------------------------
+        public function appendPaddingBit(&$bstream)
+        {
+            $bits = $bstream->size();
+            $maxwords = QRspec::getDataLength($this->version, $this->level);
+            $maxbits = $maxwords * 8;
+
+            if ($maxbits == $bits) {
+                return 0;
+            }
+
+            if ($maxbits - $bits < 5) {
+                return $bstream->appendNum($maxbits - $bits, 0);
+            }
+
+            $bits += 4;
+            $words = (int)(($bits + 7) / 8);
+
+            $padding = new QRbitstream();
+            $ret = $padding->appendNum($words * 8 - $bits + 4, 0);
+            
+            if($ret < 0) 
+                return $ret;
+
+            $padlen = $maxwords - $words;
+            
+            if($padlen > 0) {
+                
+                $padbuf = array();
+                for($i=0; $i<$padlen; $i++) {
+                    $padbuf[$i] = ($i&1)?0x11:0xec;
+                }
+                
+                $ret = $padding->appendBytes($padlen, $padbuf);
+                
+                if($ret < 0)
+                    return $ret;
+                
+            }
+
+            $ret = $bstream->append($padding);
+            
+            return $ret;
+        }
+
+        //----------------------------------------------------------------------
+        public function mergeBitStream()
+        {
+            if($this->convertData() < 0) {
+                return null;
+            }
+
+            $bstream = new QRbitstream();
+            
+            foreach($this->items as $item) {
+                $ret = $bstream->append($item->bstream);
+                if($ret < 0) {
+                    return null;
+                }
+            }
+
+            return $bstream;
+        }
+
+        //----------------------------------------------------------------------
+        public function getBitStream()
+        {
+
+            $bstream = $this->mergeBitStream();
+            
+            if($bstream == null) {
+                return null;
+            }
+            
+            $ret = $this->appendPaddingBit($bstream);
+            if($ret < 0) {
+                return null;
+            }
+
+            return $bstream;
+        }
+        
+        //----------------------------------------------------------------------
+        public function getByteStream()
+        {
+            $bstream = $this->getBitStream();
+            if($bstream == null) {
+                return null;
+            }
+            
+            return $bstream->toByte();
+        }
+    }
+        
+        
+    
+
+
+
+//---- qrbitstream.php -----------------------------
+
+
+
+
+/*
+ * PHP QR Code encoder
+ *
+ * Bitstream class
+ *
+ * Based on libqrencode C library distributed under LGPL 2.1
+ * Copyright (C) 2006, 2007, 2008, 2009 Kentaro Fukuchi <fukuchi@megaui.net>
+ *
+ * PHP QR Code is distributed under LGPL 3
+ * Copyright (C) 2010 Dominik Dzienia <deltalab at poczta dot fm>
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 3 of the License, or any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+     
+    class QRbitstream {
+    
+        public $data = array();
+        
+        //----------------------------------------------------------------------
+        public function size()
+        {
+            return count($this->data);
+        }
+        
+        //----------------------------------------------------------------------
+        public function allocate($setLength)
+        {
+            $this->data = array_fill(0, $setLength, 0);
+            return 0;
+        }
+    
+        //----------------------------------------------------------------------
+        public static function newFromNum($bits, $num)
+        {
+            $bstream = new QRbitstream();
+            $bstream->allocate($bits);
+            
+            $mask = 1 << ($bits - 1);
+            for($i=0; $i<$bits; $i++) {
+                if($num & $mask) {
+                    $bstream->data[$i] = 1;
+                } else {
+                    $bstream->data[$i] = 0;
+                }
+                $mask = $mask >> 1;
+            }
+
+            return $bstream;
+        }
+        
+        //----------------------------------------------------------------------
+        public static function newFromBytes($size, $data)
+        {
+            $bstream = new QRbitstream();
+            $bstream->allocate($size * 8);
+            $p=0;
+
+            for($i=0; $i<$size; $i++) {
+                $mask = 0x80;
+                for($j=0; $j<8; $j++) {
+                    if($data[$i] & $mask) {
+                        $bstream->data[$p] = 1;
+                    } else {
+                        $bstream->data[$p] = 0;
+                    }
+                    $p++;
+                    $mask = $mask >> 1;
+                }
+            }
+
+            return $bstream;
+        }
+        
+        //----------------------------------------------------------------------
+        public function append(QRbitstream $arg)
+        {
+            if (is_null($arg)) {
+                return -1;
+            }
+            
+            if($arg->size() == 0) {
+                return 0;
+            }
+            
+            if($this->size() == 0) {
+                $this->data = $arg->data;
+                return 0;
+            }
+            
+            $this->data = array_values(array_merge($this->data, $arg->data));
+
+            return 0;
+        }
+        
+        //----------------------------------------------------------------------
+        public function appendNum($bits, $num)
+        {
+            if ($bits == 0) 
+                return 0;
+
+            $b = QRbitstream::newFromNum($bits, $num);
+            
+            if(is_null($b))
+                return -1;
+
+            $ret = $this->append($b);
+            unset($b);
+
+            return $ret;
+        }
+
+        //----------------------------------------------------------------------
+        public function appendBytes($size, $data)
+        {
+            if ($size == 0) 
+                return 0;
+
+            $b = QRbitstream::newFromBytes($size, $data);
+            
+            if(is_null($b))
+                return -1;
+
+            $ret = $this->append($b);
+            unset($b);
+
+            return $ret;
+        }
+        
+        //----------------------------------------------------------------------
+        public function toByte()
+        {
+        
+            $size = $this->size();
+
+            if($size == 0) {
+                return array();
+            }
+            
+            $data = array_fill(0, (int)(($size + 7) / 8), 0);
+            $bytes = (int)($size / 8);
+
+            $p = 0;
+            
+            for($i=0; $i<$bytes; $i++) {
+                $v = 0;
+                for($j=0; $j<8; $j++) {
+                    $v = $v << 1;
+                    $v |= $this->data[$p];
+                    $p++;
+                }
+                $data[$i] = $v;
+            }
+            
+            if($size & 7) {
+                $v = 0;
+                for($j=0; $j<($size & 7); $j++) {
+                    $v = $v << 1;
+                    $v |= $this->data[$p];
+                    $p++;
+                }
+                $data[$bytes] = $v;
+            }
+
+            return $data;
+        }
+
+    }
+
+
+
+
+//---- qrsplit.php -----------------------------
+
+
+
+
+/*
+ * PHP QR Code encoder
+ *
+ * Input splitting classes
+ *
+ * Based on libqrencode C library distributed under LGPL 2.1
+ * Copyright (C) 2006, 2007, 2008, 2009 Kentaro Fukuchi <fukuchi@megaui.net>
+ *
+ * PHP QR Code is distributed under LGPL 3
+ * Copyright (C) 2010 Dominik Dzienia <deltalab at poczta dot fm>
+ *
+ * The following data / specifications are taken from
+ * "Two dimensional symbol -- QR-code -- Basic Specification" (JIS X0510:2004)
+ *  or
+ * "Automatic identification and data capture techniques -- 
+ *  QR Code 2005 bar code symbology specification" (ISO/IEC 18004:2006)
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 3 of the License, or any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+    class QRsplit {
+
+        public $dataStr = '';
+        public $input;
+        public $modeHint;
+
+        //----------------------------------------------------------------------
+        public function __construct($dataStr, $input, $modeHint) 
+        {
+            $this->dataStr  = $dataStr;
+            $this->input    = $input;
+            $this->modeHint = $modeHint;
+        }
+        
+        //----------------------------------------------------------------------
+        public static function isdigitat($str, $pos)
+        {    
+            if ($pos >= strlen($str))
+                return false;
+            
+            return ((ord($str[$pos]) >= ord('0'))&&(ord($str[$pos]) <= ord('9')));
+        }
+        
+        //----------------------------------------------------------------------
+        public static function isalnumat($str, $pos)
+        {
+            if ($pos >= strlen($str))
+                return false;
+                
+            return (QRinput::lookAnTable(ord($str[$pos])) >= 0);
+        }
+
+        //----------------------------------------------------------------------
+        public function identifyMode($pos)
+        {
+            if ($pos >= strlen($this->dataStr)) 
+                return QR_MODE_NUL;
+                
+            $c = $this->dataStr[$pos];
+            
+            if(self::isdigitat($this->dataStr, $pos)) {
+                return QR_MODE_NUM;
+            } else if(self::isalnumat($this->dataStr, $pos)) {
+                return QR_MODE_AN;
+            } else if($this->modeHint == QR_MODE_KANJI) {
+            
+                if ($pos+1 < strlen($this->dataStr)) 
+                {
+                    $d = $this->dataStr[$pos+1];
+                    $word = (ord($c) << 8) | ord($d);
+                    if(($word >= 0x8140 && $word <= 0x9ffc) || ($word >= 0xe040 && $word <= 0xebbf)) {
+                        return QR_MODE_KANJI;
+                    }
+                }
+            }
+
+            return QR_MODE_8;
+        } 
+        
+        //----------------------------------------------------------------------
+        public function eatNum()
+        {
+            $ln = QRspec::lengthIndicator(QR_MODE_NUM, $this->input->getVersion());
+
+            $p = 0;
+            while(self::isdigitat($this->dataStr, $p)) {
+                $p++;
+            }
+            
+            $run = $p;
+            $mode = $this->identifyMode($p);
+            
+            if($mode == QR_MODE_8) {
+                $dif = QRinput::estimateBitsModeNum($run) + 4 + $ln
+                     + QRinput::estimateBitsMode8(1)         // + 4 + l8
+                     - QRinput::estimateBitsMode8($run + 1); // - 4 - l8
+                if($dif > 0) {
+                    return $this->eat8();
+                }
+            }
+            if($mode == QR_MODE_AN) {
+                $dif = QRinput::estimateBitsModeNum($run) + 4 + $ln
+                     + QRinput::estimateBitsModeAn(1)        // + 4 + la
+                     - QRinput::estimateBitsModeAn($run + 1);// - 4 - la
+                if($dif > 0) {
+                    return $this->eatAn();
+                }
+            }
+            
+            $ret = $this->input->append(QR_MODE_NUM, $run, str_split($this->dataStr));
+            if($ret < 0)
+                return -1;
+
+            return $run;
+        }
+        
+        //----------------------------------------------------------------------
+        public function eatAn()
+        {
+            $la = QRspec::lengthIndicator(QR_MODE_AN,  $this->input->getVersion());
+            $ln = QRspec::lengthIndicator(QR_MODE_NUM, $this->input->getVersion());
+
+            $p = 0;
+            
+            while(self::isalnumat($this->dataStr, $p)) {
+                if(self::isdigitat($this->dataStr, $p)) {
+                    $q = $p;
+                    while(self::isdigitat($this->dataStr, $q)) {
+                        $q++;
+                    }
+                    
+                    $dif = QRinput::estimateBitsModeAn($p) // + 4 + la
+                         + QRinput::estimateBitsModeNum($q - $p) + 4 + $ln
+                         - QRinput::estimateBitsModeAn($q); // - 4 - la
+                         
+                    if($dif < 0) {
+                        break;
+                    } else {
+                        $p = $q;
+                    }
+                } else {
+                    $p++;
+                }
+            }
+
+            $run = $p;
+
+            if(!self::isalnumat($this->dataStr, $p)) {
+                $dif = QRinput::estimateBitsModeAn($run) + 4 + $la
+                     + QRinput::estimateBitsMode8(1) // + 4 + l8
+                      - QRinput::estimateBitsMode8($run + 1); // - 4 - l8
+                if($dif > 0) {
+                    return $this->eat8();
+                }
+            }
+
+            $ret = $this->input->append(QR_MODE_AN, $run, str_split($this->dataStr));
+            if($ret < 0)
+                return -1;
+
+            return $run;
+        }
+        
+        //----------------------------------------------------------------------
+        public function eatKanji()
+        {
+            $p = 0;
+            
+            while($this->identifyMode($p) == QR_MODE_KANJI) {
+                $p += 2;
+            }
+            
+            $ret = $this->input->append(QR_MODE_KANJI, $p, str_split($this->dataStr));
+            if($ret < 0)
+                return -1;
+
+            return $run;
+        }
+
+        //----------------------------------------------------------------------
+        public function eat8()
+        {
+            $la = QRspec::lengthIndicator(QR_MODE_AN, $this->input->getVersion());
+            $ln = QRspec::lengthIndicator(QR_MODE_NUM, $this->input->getVersion());
+
+            $p = 1;
+            $dataStrLen = strlen($this->dataStr);
+            
+            while($p < $dataStrLen) {
+                
+                $mode = $this->identifyMode($p);
+                if($mode == QR_MODE_KANJI) {
+                    break;
+                }
+                if($mode == QR_MODE_NUM) {
+                    $q = $p;
+                    while(self::isdigitat($this->dataStr, $q)) {
+                        $q++;
+                    }
+                    $dif = QRinput::estimateBitsMode8($p) // + 4 + l8
+                         + QRinput::estimateBitsModeNum($q - $p) + 4 + $ln
+                         - QRinput::estimateBitsMode8($q); // - 4 - l8
+                    if($dif < 0) {
+                        break;
+                    } else {
+                        $p = $q;
+                    }
+                } else if($mode == QR_MODE_AN) {
+                    $q = $p;
+                    while(self::isalnumat($this->dataStr, $q)) {
+                        $q++;
+                    }
+                    $dif = QRinput::estimateBitsMode8($p)  // + 4 + l8
+                         + QRinput::estimateBitsModeAn($q - $p) + 4 + $la
+                         - QRinput::estimateBitsMode8($q); // - 4 - l8
+                    if($dif < 0) {
+                        break;
+                    } else {
+                        $p = $q;
+                    }
+                } else {
+                    $p++;
+                }
+            }
+
+            $run = $p;
+            $ret = $this->input->append(QR_MODE_8, $run, str_split($this->dataStr));
+            
+            if($ret < 0)
+                return -1;
+
+            return $run;
+        }
+
+        //----------------------------------------------------------------------
+        public function splitString()
+        {
+            while (strlen($this->dataStr) > 0)
+            {
+                if($this->dataStr == '')
+                    return 0;
+
+                $mode = $this->identifyMode(0);
+                
+                switch ($mode) {
+                    case QR_MODE_NUM: $length = $this->eatNum(); break;
+                    case QR_MODE_AN:  $length = $this->eatAn(); break;
+                    case QR_MODE_KANJI:
+                        if ($hint == QR_MODE_KANJI)
+                                $length = $this->eatKanji();
+                        else    $length = $this->eat8();
+                        break;
+                    default: $length = $this->eat8(); break;
+                
+                }
+
+                if($length == 0) return 0;
+                if($length < 0)  return -1;
+                
+                $this->dataStr = substr($this->dataStr, $length);
+            }
+        }
+
+        //----------------------------------------------------------------------
+        public function toUpper()
+        {
+            $stringLen = strlen($this->dataStr);
+            $p = 0;
+            
+            while ($p<$stringLen) {
+                $mode = self::identifyMode(substr($this->dataStr, $p), $this->modeHint);
+                if($mode == QR_MODE_KANJI) {
+                    $p += 2;
+                } else {
+                    if (ord($this->dataStr[$p]) >= ord('a') && ord($this->dataStr[$p]) <= ord('z')) {
+                        $this->dataStr[$p] = chr(ord($this->dataStr[$p]) - 32);
+                    }
+                    $p++;
+                }
+            }
+
+            return $this->dataStr;
+        }
+
+        //----------------------------------------------------------------------
+        public static function splitStringToQRinput($string, QRinput $input, $modeHint, $casesensitive = true)
+        {
+            if(is_null($string) || $string == '\0' || $string == '') {
+                throw new Exception('empty string!!!');
+            }
+
+            $split = new QRsplit($string, $input, $modeHint);
+            
+            if(!$casesensitive)
+                $split->toUpper();
+                
+            return $split->splitString();
+        }
+    }
+
+
+
+//---- qrrscode.php -----------------------------
+
+
+
+
+/*
+ * PHP QR Code encoder
+ *
+ * Reed-Solomon error correction support
+ * 
+ * Copyright (C) 2002, 2003, 2004, 2006 Phil Karn, KA9Q
+ * (libfec is released under the GNU Lesser General Public License.)
+ *
+ * Based on libqrencode C library distributed under LGPL 2.1
+ * Copyright (C) 2006, 2007, 2008, 2009 Kentaro Fukuchi <fukuchi@megaui.net>
+ *
+ * PHP QR Code is distributed under LGPL 3
+ * Copyright (C) 2010 Dominik Dzienia <deltalab at poczta dot fm>
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 3 of the License, or any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+ 
+    class QRrsItem {
+    
+        public $mm;                  // Bits per symbol 
+        public $nn;                  // Symbols per block (= (1<<mm)-1) 
+        public $alpha_to = array();  // log lookup table 
+        public $index_of = array();  // Antilog lookup table 
+        public $genpoly = array();   // Generator polynomial 
+        public $nroots;              // Number of generator roots = number of parity symbols 
+        public $fcr;                 // First consecutive root, index form 
+        public $prim;                // Primitive element, index form 
+        public $iprim;               // prim-th root of 1, index form 
+        public $pad;                 // Padding bytes in shortened block 
+        public $gfpoly;
+    
+        //----------------------------------------------------------------------
+        public function modnn($x)
+        {
+            while ($x >= $this->nn) {
+                $x -= $this->nn;
+                $x = ($x >> $this->mm) + ($x & $this->nn);
+            }
+            
+            return $x;
+        }
+        
+        //----------------------------------------------------------------------
+        public static function init_rs_char($symsize, $gfpoly, $fcr, $prim, $nroots, $pad)
+        {
+            // Common code for intializing a Reed-Solomon control block (char or int symbols)
+            // Copyright 2004 Phil Karn, KA9Q
+            // May be used under the terms of the GNU Lesser General Public License (LGPL)
+
+            $rs = null;
+            
+            // Check parameter ranges
+            if($symsize < 0 || $symsize > 8)                     return $rs;
+            if($fcr < 0 || $fcr >= (1<<$symsize))                return $rs;
+            if($prim <= 0 || $prim >= (1<<$symsize))             return $rs;
+            if($nroots < 0 || $nroots >= (1<<$symsize))          return $rs; // Can't have more roots than symbol values!
+            if($pad < 0 || $pad >= ((1<<$symsize) -1 - $nroots)) return $rs; // Too much padding
+
+            $rs = new QRrsItem();
+            $rs->mm = $symsize;
+            $rs->nn = (1<<$symsize)-1;
+            $rs->pad = $pad;
+
+            $rs->alpha_to = array_fill(0, $rs->nn+1, 0);
+            $rs->index_of = array_fill(0, $rs->nn+1, 0);
+          
+            // PHP style macro replacement ;)
+            $NN =& $rs->nn;
+            $A0 =& $NN;
+            
+            // Generate Galois field lookup tables
+            $rs->index_of[0] = $A0; // log(zero) = -inf
+            $rs->alpha_to[$A0] = 0; // alpha**-inf = 0
+            $sr = 1;
+          
+            for($i=0; $i<$rs->nn; $i++) {
+                $rs->index_of[$sr] = $i;
+                $rs->alpha_to[$i] = $sr;
+                $sr <<= 1;
+                if($sr & (1<<$symsize)) {
+                    $sr ^= $gfpoly;
+                }
+                $sr &= $rs->nn;
+            }
+            
+            if($sr != 1){
+                // field generator polynomial is not primitive!
+                $rs = NULL;
+                return $rs;
+            }
+
+            /* Form RS code generator polynomial from its roots */
+            $rs->genpoly = array_fill(0, $nroots+1, 0);
+        
+            $rs->fcr = $fcr;
+            $rs->prim = $prim;
+            $rs->nroots = $nroots;
+            $rs->gfpoly = $gfpoly;
+
+            /* Find prim-th root of 1, used in decoding */
+            for($iprim=1;($iprim % $prim) != 0;$iprim += $rs->nn)
+            ; // intentional empty-body loop!
+            
+            $rs->iprim = (int)($iprim / $prim);
+            $rs->genpoly[0] = 1;
+            
+            for ($i = 0,$root=$fcr*$prim; $i < $nroots; $i++, $root += $prim) {
+                $rs->genpoly[$i+1] = 1;
+
+                // Multiply rs->genpoly[] by  @**(root + x)
+                for ($j = $i; $j > 0; $j--) {
+                    if ($rs->genpoly[$j] != 0) {
+                        $rs->genpoly[$j] = $rs->genpoly[$j-1] ^ $rs->alpha_to[$rs->modnn($rs->index_of[$rs->genpoly[$j]] + $root)];
+                    } else {
+                        $rs->genpoly[$j] = $rs->genpoly[$j-1];
+                    }
+                }
+                // rs->genpoly[0] can never be zero
+                $rs->genpoly[0] = $rs->alpha_to[$rs->modnn($rs->index_of[$rs->genpoly[0]] + $root)];
+            }
+            
+            // convert rs->genpoly[] to index form for quicker encoding
+            for ($i = 0; $i <= $nroots; $i++)
+                $rs->genpoly[$i] = $rs->index_of[$rs->genpoly[$i]];
+
+            return $rs;
+        }
+        
+        //----------------------------------------------------------------------
+        public function encode_rs_char($data, &$parity)
+        {
+            $MM       =& $this->mm;
+            $NN       =& $this->nn;
+            $ALPHA_TO =& $this->alpha_to;
+            $INDEX_OF =& $this->index_of;
+            $GENPOLY  =& $this->genpoly;
+            $NROOTS   =& $this->nroots;
+            $FCR      =& $this->fcr;
+            $PRIM     =& $this->prim;
+            $IPRIM    =& $this->iprim;
+            $PAD      =& $this->pad;
+            $A0       =& $NN;
+
+            $parity = array_fill(0, $NROOTS, 0);
+
+            for($i=0; $i< ($NN-$NROOTS-$PAD); $i++) {
+                
+                $feedback = $INDEX_OF[$data[$i] ^ $parity[0]];
+                if($feedback != $A0) {      
+                    // feedback term is non-zero
+            
+                    // This line is unnecessary when GENPOLY[NROOTS] is unity, as it must
+                    // always be for the polynomials constructed by init_rs()
+                    $feedback = $this->modnn($NN - $GENPOLY[$NROOTS] + $feedback);
+            
+                    for($j=1;$j<$NROOTS;$j++) {
+                        $parity[$j] ^= $ALPHA_TO[$this->modnn($feedback + $GENPOLY[$NROOTS-$j])];
+                    }
+                }
+                
+                // Shift 
+                array_shift($parity);
+                if($feedback != $A0) {
+                    array_push($parity, $ALPHA_TO[$this->modnn($feedback + $GENPOLY[0])]);
+                } else {
+                    array_push($parity, 0);
+                }
+            }
+        }
+    }
+    
+    //##########################################################################
+    
+    class QRrs {
+    
+        public static $items = array();
+        
+        //----------------------------------------------------------------------
+        public static function init_rs($symsize, $gfpoly, $fcr, $prim, $nroots, $pad)
+        {
+            foreach(self::$items as $rs) {
+                if($rs->pad != $pad)       continue;
+                if($rs->nroots != $nroots) continue;
+                if($rs->mm != $symsize)    continue;
+                if($rs->gfpoly != $gfpoly) continue;
+                if($rs->fcr != $fcr)       continue;
+                if($rs->prim != $prim)     continue;
+
+                return $rs;
+            }
+
+            $rs = QRrsItem::init_rs_char($symsize, $gfpoly, $fcr, $prim, $nroots, $pad);
+            array_unshift(self::$items, $rs);
+
+            return $rs;
+        }
+    }
+
+
+
+//---- qrmask.php -----------------------------
+
+
+
+
+/*
+ * PHP QR Code encoder
+ *
+ * Masking
+ *
+ * Based on libqrencode C library distributed under LGPL 2.1
+ * Copyright (C) 2006, 2007, 2008, 2009 Kentaro Fukuchi <fukuchi@megaui.net>
+ *
+ * PHP QR Code is distributed under LGPL 3
+ * Copyright (C) 2010 Dominik Dzienia <deltalab at poczta dot fm>
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 3 of the License, or any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+ 
+	define('N1', 3);
+	define('N2', 3);
+	define('N3', 40);
+	define('N4', 10);
+
+	class QRmask {
+	
+		public $runLength = array();
+		
+		//----------------------------------------------------------------------
+		public function __construct() 
+        {
+            $this->runLength = array_fill(0, QRSPEC_WIDTH_MAX + 1, 0);
+        }
+        
+        //----------------------------------------------------------------------
+        public function writeFormatInformation($width, &$frame, $mask, $level)
+        {
+            $blacks = 0;
+            $format =  QRspec::getFormatInfo($mask, $level);
+
+            for($i=0; $i<8; $i++) {
+                if($format & 1) {
+                    $blacks += 2;
+                    $v = 0x85;
+                } else {
+                    $v = 0x84;
+                }
+                
+                $frame[8][$width - 1 - $i] = chr($v);
+                if($i < 6) {
+                    $frame[$i][8] = chr($v);
+                } else {
+                    $frame[$i + 1][8] = chr($v);
+                }
+                $format = $format >> 1;
+            }
+            
+            for($i=0; $i<7; $i++) {
+                if($format & 1) {
+                    $blacks += 2;
+                    $v = 0x85;
+                } else {
+                    $v = 0x84;
+                }
+                
+                $frame[$width - 7 + $i][8] = chr($v);
+                if($i == 0) {
+                    $frame[8][7] = chr($v);
+                } else {
+                    $frame[8][6 - $i] = chr($v);
+                }
+                
+                $format = $format >> 1;
+            }
+
+            return $blacks;
+        }
+        
+        //----------------------------------------------------------------------
+        public function mask0($x, $y) { return ($x+$y)&1;                       }
+        public function mask1($x, $y) { return ($y&1);                          }
+        public function mask2($x, $y) { return ($x%3);                          }
+        public function mask3($x, $y) { return ($x+$y)%3;                       }
+        public function mask4($x, $y) { return (((int)($y/2))+((int)($x/3)))&1; }
+        public function mask5($x, $y) { return (($x*$y)&1)+($x*$y)%3;           }
+        public function mask6($x, $y) { return ((($x*$y)&1)+($x*$y)%3)&1;       }
+        public function mask7($x, $y) { return ((($x*$y)%3)+(($x+$y)&1))&1;     }
+        
+        //----------------------------------------------------------------------
+        private function generateMaskNo($maskNo, $width, $frame)
+        {
+            $bitMask = array_fill(0, $width, array_fill(0, $width, 0));
+            
+            for($y=0; $y<$width; $y++) {
+                for($x=0; $x<$width; $x++) {
+                    if(ord($frame[$y][$x]) & 0x80) {
+                        $bitMask[$y][$x] = 0;
+                    } else {
+                        $maskFunc = call_user_func(array($this, 'mask'.$maskNo), $x, $y);
+                        $bitMask[$y][$x] = ($maskFunc == 0)?1:0;
+                    }
+                    
+                }
+            }
+            
+            return $bitMask;
+        }
+        
+        //----------------------------------------------------------------------
+        public static function serial($bitFrame)
+        {
+            $codeArr = array();
+            
+            foreach ($bitFrame as $line)
+                $codeArr[] = join('', $line);
+                
+            return gzcompress(join("\n", $codeArr), 9);
+        }
+        
+        //----------------------------------------------------------------------
+        public static function unserial($code)
+        {
+            $codeArr = array();
+            
+            $codeLines = explode("\n", gzuncompress($code));
+            foreach ($codeLines as $line)
+                $codeArr[] = str_split($line);
+            
+            return $codeArr;
+        }
+        
+        //----------------------------------------------------------------------
+        public function makeMaskNo($maskNo, $width, $s, &$d, $maskGenOnly = false) 
+        {
+            $b = 0;
+            $bitMask = array();
+            
+            $fileName = QR_CACHE_DIR.'mask_'.$maskNo.DIRECTORY_SEPARATOR.'mask_'.$width.'_'.$maskNo.'.dat';
+
+            if (QR_CACHEABLE) {
+                if (file_exists($fileName)) {
+                    $bitMask = self::unserial(file_get_contents($fileName));
+                } else {
+                    $bitMask = $this->generateMaskNo($maskNo, $width, $s, $d);
+                    if (!file_exists(QR_CACHE_DIR.'mask_'.$maskNo))
+                        mkdir(QR_CACHE_DIR.'mask_'.$maskNo);
+                    file_put_contents($fileName, self::serial($bitMask));
+                }
+            } else {
+                $bitMask = $this->generateMaskNo($maskNo, $width, $s, $d);
+            }
+
+            if ($maskGenOnly)
+                return;
+                
+            $d = $s;
+
+            for($y=0; $y<$width; $y++) {
+                for($x=0; $x<$width; $x++) {
+                    if($bitMask[$y][$x] == 1) {
+                        $d[$y][$x] = chr(ord($s[$y][$x]) ^ (int)$bitMask[$y][$x]);
+                    }
+                    $b += (int)(ord($d[$y][$x]) & 1);
+                }
+            }
+
+            return $b;
+        }
+        
+        //----------------------------------------------------------------------
+        public function makeMask($width, $frame, $maskNo, $level)
+        {
+            $masked = array_fill(0, $width, str_repeat("\0", $width));
+            $this->makeMaskNo($maskNo, $width, $frame, $masked);
+            $this->writeFormatInformation($width, $masked, $maskNo, $level);
+       
+            return $masked;
+        }
+        
+        //----------------------------------------------------------------------
+        public function calcN1N3($length)
+        {
+            $demerit = 0;
+
+            for($i=0; $i<$length; $i++) {
+                
+                if($this->runLength[$i] >= 5) {
+                    $demerit += (N1 + ($this->runLength[$i] - 5));
+                }
+                if($i & 1) {
+                    if(($i >= 3) && ($i < ($length-2)) && ($this->runLength[$i] % 3 == 0)) {
+                        $fact = (int)($this->runLength[$i] / 3);
+                        if(($this->runLength[$i-2] == $fact) &&
+                           ($this->runLength[$i-1] == $fact) &&
+                           ($this->runLength[$i+1] == $fact) &&
+                           ($this->runLength[$i+2] == $fact)) {
+                            if(($this->runLength[$i-3] < 0) || ($this->runLength[$i-3] >= (4 * $fact))) {
+                                $demerit += N3;
+                            } else if((($i+3) >= $length) || ($this->runLength[$i+3] >= (4 * $fact))) {
+                                $demerit += N3;
+                            }
+                        }
+                    }
+                }
+            }
+            return $demerit;
+        }
+        
+        //----------------------------------------------------------------------
+        public function evaluateSymbol($width, $frame)
+        {
+            $head = 0;
+            $demerit = 0;
+
+            for($y=0; $y<$width; $y++) {
+                $head = 0;
+                $this->runLength[0] = 1;
+                
+                $frameY = $frame[$y];
+                
+                if ($y>0)
+                    $frameYM = $frame[$y-1];
+                
+                for($x=0; $x<$width; $x++) {
+                    if(($x > 0) && ($y > 0)) {
+                        $b22 = ord($frameY[$x]) & ord($frameY[$x-1]) & ord($frameYM[$x]) & ord($frameYM[$x-1]);
+                        $w22 = ord($frameY[$x]) | ord($frameY[$x-1]) | ord($frameYM[$x]) | ord($frameYM[$x-1]);
+                        
+                        if(($b22 | ($w22 ^ 1))&1) {                                                                     
+                            $demerit += N2;
+                        }
+                    }
+                    if(($x == 0) && (ord($frameY[$x]) & 1)) {
+                        $this->runLength[0] = -1;
+                        $head = 1;
+                        $this->runLength[$head] = 1;
+                    } else if($x > 0) {
+                        if((ord($frameY[$x]) ^ ord($frameY[$x-1])) & 1) {
+                            $head++;
+                            $this->runLength[$head] = 1;
+                        } else {
+                            $this->runLength[$head]++;
+                        }
+                    }
+                }
+    
+                $demerit += $this->calcN1N3($head+1);
+            }
+
+            for($x=0; $x<$width; $x++) {
+                $head = 0;
+                $this->runLength[0] = 1;
+                
+                for($y=0; $y<$width; $y++) {
+                    if($y == 0 && (ord($frame[$y][$x]) & 1)) {
+                        $this->runLength[0] = -1;
+                        $head = 1;
+                        $this->runLength[$head] = 1;
+                    } else if($y > 0) {
+                        if((ord($frame[$y][$x]) ^ ord($frame[$y-1][$x])) & 1) {
+                            $head++;
+                            $this->runLength[$head] = 1;
+                        } else {
+                            $this->runLength[$head]++;
+                        }
+                    }
+                }
+            
+                $demerit += $this->calcN1N3($head+1);
+            }
+
+            return $demerit;
+        }
+        
+        
+        //----------------------------------------------------------------------
+        public function mask($width, $frame, $level)
+        {
+            $minDemerit = PHP_INT_MAX;
+            $bestMaskNum = 0;
+            $bestMask = array();
+            
+            $checked_masks = array(0,1,2,3,4,5,6,7);
+            
+            if (QR_FIND_FROM_RANDOM !== false) {
+            
+                $howManuOut = 8-(QR_FIND_FROM_RANDOM % 9);
+                for ($i = 0; $i <  $howManuOut; $i++) {
+                    $remPos = rand (0, count($checked_masks)-1);
+                    unset($checked_masks[$remPos]);
+                    $checked_masks = array_values($checked_masks);
+                }
+            
+            }
+            
+            $bestMask = $frame;
+             
+            foreach($checked_masks as $i) {
+                $mask = array_fill(0, $width, str_repeat("\0", $width));
+
+                $demerit = 0;
+                $blacks = 0;
+                $blacks  = $this->makeMaskNo($i, $width, $frame, $mask);
+                $blacks += $this->writeFormatInformation($width, $mask, $i, $level);
+                $blacks  = (int)(100 * $blacks / ($width * $width));
+                $demerit = (int)((int)(abs($blacks - 50) / 5) * N4);
+                $demerit += $this->evaluateSymbol($width, $mask);
+                
+                if($demerit < $minDemerit) {
+                    $minDemerit = $demerit;
+                    $bestMask = $mask;
+                    $bestMaskNum = $i;
+                }
+            }
+            
+            return $bestMask;
+        }
+        
+        //----------------------------------------------------------------------
+    }
+
+
+
+
+//---- qrencode.php -----------------------------
+
+
+
+
+/*
+ * PHP QR Code encoder
+ *
+ * Main encoder classes.
+ *
+ * Based on libqrencode C library distributed under LGPL 2.1
+ * Copyright (C) 2006, 2007, 2008, 2009 Kentaro Fukuchi <fukuchi@megaui.net>
+ *
+ * PHP QR Code is distributed under LGPL 3
+ * Copyright (C) 2010 Dominik Dzienia <deltalab at poczta dot fm>
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 3 of the License, or any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+ 
+    class QRrsblock {
+        public $dataLength;
+        public $data = array();
+        public $eccLength;
+        public $ecc = array();
+        
+        public function __construct($dl, $data, $el, &$ecc, QRrsItem $rs)
+        {
+            $rs->encode_rs_char($data, $ecc);
+        
+            $this->dataLength = $dl;
+            $this->data = $data;
+            $this->eccLength = $el;
+            $this->ecc = $ecc;
+        }
+    };
+    
+    //##########################################################################
+
+    class QRrawcode {
+        public $version;
+        public $datacode = array();
+        public $ecccode = array();
+        public $blocks;
+        public $rsblocks = array(); //of RSblock
+        public $count;
+        public $dataLength;
+        public $eccLength;
+        public $b1;
+        
+        //----------------------------------------------------------------------
+        public function __construct(QRinput $input)
+        {
+            $spec = array(0,0,0,0,0);
+            
+            $this->datacode = $input->getByteStream();
+            if(is_null($this->datacode)) {
+                throw new Exception('null imput string');
+            }
+
+            QRspec::getEccSpec($input->getVersion(), $input->getErrorCorrectionLevel(), $spec);
+
+            $this->version = $input->getVersion();
+            $this->b1 = QRspec::rsBlockNum1($spec);
+            $this->dataLength = QRspec::rsDataLength($spec);
+            $this->eccLength = QRspec::rsEccLength($spec);
+            $this->ecccode = array_fill(0, $this->eccLength, 0);
+            $this->blocks = QRspec::rsBlockNum($spec);
+            
+            $ret = $this->init($spec);
+            if($ret < 0) {
+                throw new Exception('block alloc error');
+                return null;
+            }
+
+            $this->count = 0;
+        }
+        
+        //----------------------------------------------------------------------
+        public function init(array $spec)
+        {
+            $dl = QRspec::rsDataCodes1($spec);
+            $el = QRspec::rsEccCodes1($spec);
+            $rs = QRrs::init_rs(8, 0x11d, 0, 1, $el, 255 - $dl - $el);
+            
+
+            $blockNo = 0;
+            $dataPos = 0;
+            $eccPos = 0;
+            for($i=0; $i<QRspec::rsBlockNum1($spec); $i++) {
+                $ecc = array_slice($this->ecccode,$eccPos);
+                $this->rsblocks[$blockNo] = new QRrsblock($dl, array_slice($this->datacode, $dataPos), $el,  $ecc, $rs);
+                $this->ecccode = array_merge(array_slice($this->ecccode,0, $eccPos), $ecc);
+                
+                $dataPos += $dl;
+                $eccPos += $el;
+                $blockNo++;
+            }
+
+            if(QRspec::rsBlockNum2($spec) == 0)
+                return 0;
+
+            $dl = QRspec::rsDataCodes2($spec);
+            $el = QRspec::rsEccCodes2($spec);
+            $rs = QRrs::init_rs(8, 0x11d, 0, 1, $el, 255 - $dl - $el);
+            
+            if($rs == NULL) return -1;
+            
+            for($i=0; $i<QRspec::rsBlockNum2($spec); $i++) {
+                $ecc = array_slice($this->ecccode,$eccPos);
+                $this->rsblocks[$blockNo] = new QRrsblock($dl, array_slice($this->datacode, $dataPos), $el, $ecc, $rs);
+                $this->ecccode = array_merge(array_slice($this->ecccode,0, $eccPos), $ecc);
+                
+                $dataPos += $dl;
+                $eccPos += $el;
+                $blockNo++;
+            }
+
+            return 0;
+        }
+        
+        //----------------------------------------------------------------------
+        public function getCode()
+        {
+            $ret;
+
+            if($this->count < $this->dataLength) {
+                $row = $this->count % $this->blocks;
+                $col = $this->count / $this->blocks;
+                if($col >= $this->rsblocks[0]->dataLength) {
+                    $row += $this->b1;
+                }
+                $ret = $this->rsblocks[$row]->data[$col];
+            } else if($this->count < $this->dataLength + $this->eccLength) {
+                $row = ($this->count - $this->dataLength) % $this->blocks;
+                $col = ($this->count - $this->dataLength) / $this->blocks;
+                $ret = $this->rsblocks[$row]->ecc[$col];
+            } else {
+                return 0;
+            }
+            $this->count++;
+            
+            return $ret;
+        }
+    }
+
+    //##########################################################################
+    
+    class QRcode {
+    
+        public $version;
+        public $width;
+        public $data; 
+        
+        //----------------------------------------------------------------------
+        public function encodeMask(QRinput $input, $mask)
+        {
+            if($input->getVersion() < 0 || $input->getVersion() > QRSPEC_VERSION_MAX) {
+                throw new Exception('wrong version');
+            }
+            if($input->getErrorCorrectionLevel() > QR_ECLEVEL_H) {
+                throw new Exception('wrong level');
+            }
+
+            $raw = new QRrawcode($input);
+            
+            QRtools::markTime('after_raw');
+            
+            $version = $raw->version;
+            $width = QRspec::getWidth($version);
+            $frame = QRspec::newFrame($version);
+            
+            $filler = new FrameFiller($width, $frame);
+            if(is_null($filler)) {
+                return NULL;
+            }
+
+            // inteleaved data and ecc codes
+            for($i=0; $i<$raw->dataLength + $raw->eccLength; $i++) {
+                $code = $raw->getCode();
+                $bit = 0x80;
+                for($j=0; $j<8; $j++) {
+                    $addr = $filler->next();
+                    $filler->setFrameAt($addr, 0x02 | (($bit & $code) != 0));
+                    $bit = $bit >> 1;
+                }
+            }
+            
+            QRtools::markTime('after_filler');
+            
+            unset($raw);
+            
+            // remainder bits
+            $j = QRspec::getRemainder($version);
+            for($i=0; $i<$j; $i++) {
+                $addr = $filler->next();
+                $filler->setFrameAt($addr, 0x02);
+            }
+            
+            $frame = $filler->frame;
+            unset($filler);
+            
+            
+            // masking
+            $maskObj = new QRmask();
+            if($mask < 0) {
+            
+                if (QR_FIND_BEST_MASK) {
+                    $masked = $maskObj->mask($width, $frame, $input->getErrorCorrectionLevel());
+                } else {
+                    $masked = $maskObj->makeMask($width, $frame, (intval(QR_DEFAULT_MASK) % 8), $input->getErrorCorrectionLevel());
+                }
+            } else {
+                $masked = $maskObj->makeMask($width, $frame, $mask, $input->getErrorCorrectionLevel());
+            }
+            
+            if($masked == NULL) {
+                return NULL;
+            }
+            
+            QRtools::markTime('after_mask');
+            
+            $this->version = $version;
+            $this->width = $width;
+            $this->data = $masked;
+            
+            return $this;
+        }
+    
+        //----------------------------------------------------------------------
+        public function encodeInput(QRinput $input)
+        {
+            return $this->encodeMask($input, -1);
+        }
+        
+        //----------------------------------------------------------------------
+        public function encodeString8bit($string, $version, $level)
+        {
+            if(string == NULL) {
+                throw new Exception('empty string!');
+                return NULL;
+            }
+
+            $input = new QRinput($version, $level);
+            if($input == NULL) return NULL;
+
+            $ret = $input->append($input, QR_MODE_8, strlen($string), str_split($string));
+            if($ret < 0) {
+                unset($input);
+                return NULL;
+            }
+            return $this->encodeInput($input);
+        }
+
+        //----------------------------------------------------------------------
+        public function encodeString($string, $version, $level, $hint, $casesensitive)
+        {
+
+            if($hint != QR_MODE_8 && $hint != QR_MODE_KANJI) {
+                throw new Exception('bad hint');
+                return NULL;
+            }
+
+            $input = new QRinput($version, $level);
+            if($input == NULL) return NULL;
+
+            $ret = QRsplit::splitStringToQRinput($string, $input, $hint, $casesensitive);
+            if($ret < 0) {
+                return NULL;
+            }
+
+            return $this->encodeInput($input);
+        }
+        
+        //----------------------------------------------------------------------
+        public static function png($text, $outfile = false, $level = QR_ECLEVEL_L, $size = 3, $margin = 4, $saveandprint=false) 
+        {
+            $enc = QRencode::factory($level, $size, $margin);
+            return $enc->encodePNG($text, $outfile, $saveandprint=false);
+        }
+
+        //----------------------------------------------------------------------
+        public static function text($text, $outfile = false, $level = QR_ECLEVEL_L, $size = 3, $margin = 4) 
+        {
+            $enc = QRencode::factory($level, $size, $margin);
+            return $enc->encode($text, $outfile);
+        }
+
+        //----------------------------------------------------------------------
+        public static function raw($text, $outfile = false, $level = QR_ECLEVEL_L, $size = 3, $margin = 4) 
+        {
+            $enc = QRencode::factory($level, $size, $margin);
+            return $enc->encodeRAW($text, $outfile);
+        }
+    }
+    
+    //##########################################################################
+    
+    class FrameFiller {
+    
+        public $width;
+        public $frame;
+        public $x;
+        public $y;
+        public $dir;
+        public $bit;
+        
+        //----------------------------------------------------------------------
+        public function __construct($width, &$frame)
+        {
+            $this->width = $width;
+            $this->frame = $frame;
+            $this->x = $width - 1;
+            $this->y = $width - 1;
+            $this->dir = -1;
+            $this->bit = -1;
+        }
+        
+        //----------------------------------------------------------------------
+        public function setFrameAt($at, $val)
+        {
+            $this->frame[$at['y']][$at['x']] = chr($val);
+        }
+        
+        //----------------------------------------------------------------------
+        public function getFrameAt($at)
+        {
+            return ord($this->frame[$at['y']][$at['x']]);
+        }
+        
+        //----------------------------------------------------------------------
+        public function next()
+        {
+            do {
+            
+                if($this->bit == -1) {
+                    $this->bit = 0;
+                    return array('x'=>$this->x, 'y'=>$this->y);
+                }
+
+                $x = $this->x;
+                $y = $this->y;
+                $w = $this->width;
+
+                if($this->bit == 0) {
+                    $x--;
+                    $this->bit++;
+                } else {
+                    $x++;
+                    $y += $this->dir;
+                    $this->bit--;
+                }
+
+                if($this->dir < 0) {
+                    if($y < 0) {
+                        $y = 0;
+                        $x -= 2;
+                        $this->dir = 1;
+                        if($x == 6) {
+                            $x--;
+                            $y = 9;
+                        }
+                    }
+                } else {
+                    if($y == $w) {
+                        $y = $w - 1;
+                        $x -= 2;
+                        $this->dir = -1;
+                        if($x == 6) {
+                            $x--;
+                            $y -= 8;
+                        }
+                    }
+                }
+                if($x < 0 || $y < 0) return null;
+
+                $this->x = $x;
+                $this->y = $y;
+
+            } while(ord($this->frame[$y][$x]) & 0x80);
+                        
+            return array('x'=>$x, 'y'=>$y);
+        }
+        
+    } ;
+    
+    //##########################################################################    
+    
+    class QRencode {
+    
+        public $casesensitive = true;
+        public $eightbit = false;
+        
+        public $version = 0;
+        public $size = 3;
+        public $margin = 4;
+        
+        public $structured = 0; // not supported yet
+        
+        public $level = QR_ECLEVEL_L;
+        public $hint = QR_MODE_8;
+        
+        //----------------------------------------------------------------------
+        public static function factory($level = QR_ECLEVEL_L, $size = 3, $margin = 4)
+        {
+            $enc = new QRencode();
+            $enc->size = $size;
+            $enc->margin = $margin;
+            
+            switch ($level.'') {
+                case '0':
+                case '1':
+                case '2':
+                case '3':
+                        $enc->level = $level;
+                    break;
+                case 'l':
+                case 'L':
+                        $enc->level = QR_ECLEVEL_L;
+                    break;
+                case 'm':
+                case 'M':
+                        $enc->level = QR_ECLEVEL_M;
+                    break;
+                case 'q':
+                case 'Q':
+                        $enc->level = QR_ECLEVEL_Q;
+                    break;
+                case 'h':
+                case 'H':
+                        $enc->level = QR_ECLEVEL_H;
+                    break;
+            }
+            
+            return $enc;
+        }
+        
+        //----------------------------------------------------------------------
+        public function encodeRAW($intext, $outfile = false) 
+        {
+            $code = new QRcode();
+
+            if($this->eightbit) {
+                $code->encodeString8bit($intext, $this->version, $this->level);
+            } else {
+                $code->encodeString($intext, $this->version, $this->level, $this->hint, $this->casesensitive);
+            }
+            
+            return $code->data;
+        }
+
+        //----------------------------------------------------------------------
+        public function encode($intext, $outfile = false) 
+        {
+            $code = new QRcode();
+
+            if($this->eightbit) {
+                $code->encodeString8bit($intext, $this->version, $this->level);
+            } else {
+                $code->encodeString($intext, $this->version, $this->level, $this->hint, $this->casesensitive);
+            }
+            
+            QRtools::markTime('after_encode');
+            
+            if ($outfile!== false) {
+                file_put_contents($outfile, join("\n", QRtools::binarize($code->data)));
+            } else {
+                return QRtools::binarize($code->data);
+            }
+        }
+        
+        //----------------------------------------------------------------------
+        public function encodePNG($intext, $outfile = false,$saveandprint=false) 
+        {
+            try {
+            
+                ob_start();
+                $tab = $this->encode($intext);
+                $err = ob_get_contents();
+                ob_end_clean();
+                
+                if ($err != '')
+                    QRtools::log($outfile, $err);
+                
+                $maxSize = (int)(QR_PNG_MAXIMUM_SIZE / (count($tab)+2*$this->margin));
+                
+                QRimage::png($tab, $outfile, min(max(1, $this->size), $maxSize), $this->margin,$saveandprint);
+            
+            } catch (Exception $e) {
+            
+                QRtools::log($outfile, $e->getMessage());
+            
+            }
+        }
+    }
+
+
diff --git a/src-backup/includes/phpqrcode/qr_18-10147_1765114124.png-errors.txt b/src-backup/includes/phpqrcode/qr_18-10147_1765114124.png-errors.txt
new file mode 100644
index 0000000..5026e30
--- /dev/null
+++ b/src-backup/includes/phpqrcode/qr_18-10147_1765114124.png-errors.txt
@@ -0,0 +1,242 @@
+2025-12-07 21:28:44: <br />
+<b>Deprecated</b>:  Implicit conversion from float 0.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>140</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 1.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>140</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 2.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>140</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 3.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>140</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 4.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>140</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 5.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>140</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 6.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>140</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 7.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>140</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 8.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>140</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 9.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>140</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 10.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>140</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 11.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>140</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 12.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>140</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 13.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>140</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 14.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>140</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 15.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>140</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 16.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>140</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 17.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>140</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 18.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>140</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 19.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>140</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 20.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>140</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 21.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>140</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 22.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>140</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 23.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>140</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 24.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>140</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 25.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>140</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 26.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>140</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 27.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>140</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 28.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>140</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 29.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>140</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 30.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>140</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 31.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>140</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 32.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>140</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 33.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>140</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 34.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>140</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 35.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>140</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 36.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>140</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 37.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>140</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 38.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>140</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 39.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>140</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 40.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>140</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 41.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>140</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 42.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>140</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 43.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>140</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 44.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>140</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 45.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>140</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 46.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>140</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 47.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>140</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 48.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>140</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 49.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>140</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 50.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>140</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 51.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>140</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 52.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>140</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 53.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>140</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 54.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>140</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 55.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>140</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 56.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>140</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 57.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>140</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 58.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>140</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 59.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>140</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 60.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>140</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 61.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>140</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 62.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>140</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 63.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>140</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 64.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>140</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 65.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>140</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 66.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>140</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 67.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>140</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 68.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>140</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 69.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>140</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 70.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>140</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 71.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>140</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 72.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>140</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 73.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>140</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 74.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>140</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 75.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>140</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 76.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>140</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 77.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>140</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 78.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>140</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 79.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>140</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 80.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>140</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 81.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>140</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 82.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>140</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 83.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>140</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 84.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>140</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 85.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>140</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 86.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>140</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 87.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>140</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 88.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>140</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 89.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>140</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 90.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>140</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 91.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>140</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 92.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>140</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 93.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>140</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 94.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>140</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 95.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>140</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 96.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>140</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 0.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>144</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 1.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>144</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 2.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>144</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 3.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>144</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 4.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>144</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 5.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>144</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 6.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>144</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 7.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>144</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 8.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>144</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 9.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>144</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 10.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>144</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 11.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>144</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 12.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>144</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 13.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>144</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 14.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>144</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 15.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>144</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 16.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>144</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 17.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>144</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 18.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>144</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 19.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>144</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 20.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>144</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 21.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>144</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 22.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>144</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 23.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>144</b><br />
diff --git a/src-backup/includes/phpqrcode/qr_18-10147_1765114125.png-errors.txt b/src-backup/includes/phpqrcode/qr_18-10147_1765114125.png-errors.txt
new file mode 100644
index 0000000..fa6939f
--- /dev/null
+++ b/src-backup/includes/phpqrcode/qr_18-10147_1765114125.png-errors.txt
@@ -0,0 +1,242 @@
+2025-12-07 21:28:45: <br />
+<b>Deprecated</b>:  Implicit conversion from float 0.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>140</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 1.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>140</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 2.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>140</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 3.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>140</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 4.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>140</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 5.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>140</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 6.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>140</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 7.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>140</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 8.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>140</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 9.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>140</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 10.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>140</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 11.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>140</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 12.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>140</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 13.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>140</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 14.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>140</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 15.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>140</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 16.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>140</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 17.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>140</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 18.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>140</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 19.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>140</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 20.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>140</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 21.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>140</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 22.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>140</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 23.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>140</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 24.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>140</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 25.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>140</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 26.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>140</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 27.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>140</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 28.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>140</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 29.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>140</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 30.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>140</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 31.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>140</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 32.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>140</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 33.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>140</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 34.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>140</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 35.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>140</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 36.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>140</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 37.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>140</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 38.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>140</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 39.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>140</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 40.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>140</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 41.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>140</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 42.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>140</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 43.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>140</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 44.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>140</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 45.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>140</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 46.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>140</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 47.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>140</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 48.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>140</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 49.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>140</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 50.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>140</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 51.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>140</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 52.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>140</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 53.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>140</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 54.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>140</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 55.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>140</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 56.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>140</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 57.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>140</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 58.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>140</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 59.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>140</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 60.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>140</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 61.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>140</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 62.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>140</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 63.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>140</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 64.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>140</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 65.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>140</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 66.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>140</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 67.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>140</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 68.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>140</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 69.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>140</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 70.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>140</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 71.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>140</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 72.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>140</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 73.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>140</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 74.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>140</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 75.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>140</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 76.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>140</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 77.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>140</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 78.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>140</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 79.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>140</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 80.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>140</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 81.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>140</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 82.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>140</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 83.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>140</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 84.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>140</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 85.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>140</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 86.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>140</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 87.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>140</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 88.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>140</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 89.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>140</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 90.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>140</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 91.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>140</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 92.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>140</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 93.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>140</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 94.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>140</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 95.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>140</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 96.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>140</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 0.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>144</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 1.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>144</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 2.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>144</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 3.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>144</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 4.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>144</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 5.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>144</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 6.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>144</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 7.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>144</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 8.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>144</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 9.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>144</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 10.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>144</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 11.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>144</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 12.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>144</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 13.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>144</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 14.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>144</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 15.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>144</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 16.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>144</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 17.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>144</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 18.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>144</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 19.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>144</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 20.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>144</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 21.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>144</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 22.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>144</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 23.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>144</b><br />
diff --git a/src-backup/includes/phpqrcode/qr_18-10147_1765114249.png-errors.txt b/src-backup/includes/phpqrcode/qr_18-10147_1765114249.png-errors.txt
new file mode 100644
index 0000000..c6d092b
--- /dev/null
+++ b/src-backup/includes/phpqrcode/qr_18-10147_1765114249.png-errors.txt
@@ -0,0 +1,242 @@
+2025-12-07 21:30:49: <br />
+<b>Deprecated</b>:  Implicit conversion from float 0.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>140</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 1.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>140</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 2.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>140</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 3.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>140</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 4.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>140</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 5.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>140</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 6.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>140</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 7.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>140</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 8.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>140</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 9.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>140</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 10.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>140</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 11.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>140</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 12.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>140</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 13.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>140</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 14.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>140</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 15.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>140</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 16.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>140</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 17.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>140</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 18.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>140</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 19.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>140</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 20.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>140</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 21.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>140</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 22.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>140</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 23.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>140</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 24.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>140</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 25.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>140</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 26.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>140</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 27.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>140</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 28.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>140</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 29.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>140</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 30.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>140</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 31.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>140</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 32.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>140</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 33.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>140</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 34.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>140</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 35.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>140</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 36.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>140</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 37.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>140</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 38.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>140</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 39.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>140</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 40.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>140</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 41.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>140</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 42.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>140</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 43.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>140</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 44.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>140</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 45.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>140</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 46.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>140</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 47.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>140</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 48.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>140</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 49.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>140</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 50.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>140</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 51.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>140</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 52.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>140</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 53.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>140</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 54.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>140</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 55.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>140</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 56.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>140</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 57.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>140</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 58.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>140</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 59.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>140</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 60.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>140</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 61.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>140</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 62.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>140</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 63.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>140</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 64.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>140</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 65.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>140</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 66.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>140</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 67.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>140</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 68.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>140</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 69.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>140</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 70.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>140</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 71.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>140</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 72.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>140</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 73.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>140</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 74.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>140</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 75.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>140</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 76.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>140</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 77.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>140</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 78.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>140</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 79.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>140</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 80.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>140</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 81.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>140</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 82.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>140</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 83.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>140</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 84.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>140</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 85.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>140</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 86.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>140</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 87.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>140</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 88.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>140</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 89.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>140</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 90.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>140</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 91.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>140</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 92.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>140</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 93.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>140</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 94.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>140</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 95.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>140</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 96.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>140</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 0.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>144</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 1.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>144</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 2.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>144</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 3.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>144</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 4.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>144</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 5.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>144</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 6.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>144</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 7.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>144</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 8.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>144</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 9.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>144</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 10.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>144</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 11.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>144</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 12.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>144</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 13.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>144</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 14.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>144</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 15.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>144</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 16.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>144</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 17.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>144</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 18.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>144</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 19.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>144</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 20.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>144</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 21.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>144</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 22.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>144</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 23.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>144</b><br />
diff --git a/src-backup/includes/phpqrcode/qrbitstream.php b/src-backup/includes/phpqrcode/qrbitstream.php
new file mode 100644
index 0000000..7d4ec4a
--- /dev/null
+++ b/src-backup/includes/phpqrcode/qrbitstream.php
@@ -0,0 +1,180 @@
+<?php
+/*
+ * PHP QR Code encoder
+ *
+ * Bitstream class
+ *
+ * Based on libqrencode C library distributed under LGPL 2.1
+ * Copyright (C) 2006, 2007, 2008, 2009 Kentaro Fukuchi <fukuchi@megaui.net>
+ *
+ * PHP QR Code is distributed under LGPL 3
+ * Copyright (C) 2010 Dominik Dzienia <deltalab at poczta dot fm>
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 3 of the License, or any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+     
+    class QRbitstream {
+    
+        public $data = array();
+        
+        //----------------------------------------------------------------------
+        public function size()
+        {
+            return count($this->data);
+        }
+        
+        //----------------------------------------------------------------------
+        public function allocate($setLength)
+        {
+            $this->data = array_fill(0, $setLength, 0);
+            return 0;
+        }
+    
+        //----------------------------------------------------------------------
+        public static function newFromNum($bits, $num)
+        {
+            $bstream = new QRbitstream();
+            $bstream->allocate($bits);
+            
+            $mask = 1 << ($bits - 1);
+            for($i=0; $i<$bits; $i++) {
+                if($num & $mask) {
+                    $bstream->data[$i] = 1;
+                } else {
+                    $bstream->data[$i] = 0;
+                }
+                $mask = $mask >> 1;
+            }
+
+            return $bstream;
+        }
+        
+        //----------------------------------------------------------------------
+        public static function newFromBytes($size, $data)
+        {
+            $bstream = new QRbitstream();
+            $bstream->allocate($size * 8);
+            $p=0;
+
+            for($i=0; $i<$size; $i++) {
+                $mask = 0x80;
+                for($j=0; $j<8; $j++) {
+                    if($data[$i] & $mask) {
+                        $bstream->data[$p] = 1;
+                    } else {
+                        $bstream->data[$p] = 0;
+                    }
+                    $p++;
+                    $mask = $mask >> 1;
+                }
+            }
+
+            return $bstream;
+        }
+        
+        //----------------------------------------------------------------------
+        public function append(QRbitstream $arg)
+        {
+            if (is_null($arg)) {
+                return -1;
+            }
+            
+            if($arg->size() == 0) {
+                return 0;
+            }
+            
+            if($this->size() == 0) {
+                $this->data = $arg->data;
+                return 0;
+            }
+            
+            $this->data = array_values(array_merge($this->data, $arg->data));
+
+            return 0;
+        }
+        
+        //----------------------------------------------------------------------
+        public function appendNum($bits, $num)
+        {
+            if ($bits == 0) 
+                return 0;
+
+            $b = QRbitstream::newFromNum($bits, $num);
+            
+            if(is_null($b))
+                return -1;
+
+            $ret = $this->append($b);
+            unset($b);
+
+            return $ret;
+        }
+
+        //----------------------------------------------------------------------
+        public function appendBytes($size, $data)
+        {
+            if ($size == 0) 
+                return 0;
+
+            $b = QRbitstream::newFromBytes($size, $data);
+            
+            if(is_null($b))
+                return -1;
+
+            $ret = $this->append($b);
+            unset($b);
+
+            return $ret;
+        }
+        
+        //----------------------------------------------------------------------
+        public function toByte()
+        {
+        
+            $size = $this->size();
+
+            if($size == 0) {
+                return array();
+            }
+            
+            $data = array_fill(0, (int)(($size + 7) / 8), 0);
+            $bytes = (int)($size / 8);
+
+            $p = 0;
+            
+            for($i=0; $i<$bytes; $i++) {
+                $v = 0;
+                for($j=0; $j<8; $j++) {
+                    $v = $v << 1;
+                    $v |= $this->data[$p];
+                    $p++;
+                }
+                $data[$i] = $v;
+            }
+            
+            if($size & 7) {
+                $v = 0;
+                for($j=0; $j<($size & 7); $j++) {
+                    $v = $v << 1;
+                    $v |= $this->data[$p];
+                    $p++;
+                }
+                $data[$bytes] = $v;
+            }
+
+            return $data;
+        }
+
+    }
diff --git a/src-backup/includes/phpqrcode/qrconfig.php b/src-backup/includes/phpqrcode/qrconfig.php
new file mode 100644
index 0000000..e53dff8
--- /dev/null
+++ b/src-backup/includes/phpqrcode/qrconfig.php
@@ -0,0 +1,17 @@
+<?php
+/*
+ * PHP QR Code encoder
+ *
+ * Config file, feel free to modify
+ */
+     
+    define('QR_CACHEABLE', true);                                                               // use cache - more disk reads but less CPU power, masks and format templates are stored there
+    define('QR_CACHE_DIR', dirname(__FILE__).DIRECTORY_SEPARATOR.'cache'.DIRECTORY_SEPARATOR);  // used when QR_CACHEABLE === true
+    define('QR_LOG_DIR', dirname(__FILE__).DIRECTORY_SEPARATOR);                                // default error logs dir   
+    
+    define('QR_FIND_BEST_MASK', true);                                                          // if true, estimates best mask (spec. default, but extremally slow; set to false to significant performance boost but (propably) worst quality code
+    define('QR_FIND_FROM_RANDOM', false);                                                       // if false, checks all masks available, otherwise value tells count of masks need to be checked, mask id are got randomly
+    define('QR_DEFAULT_MASK', 2);                                                               // when QR_FIND_BEST_MASK === false
+                                                  
+    define('QR_PNG_MAXIMUM_SIZE',  1024);                                                       // maximum allowed png image width (in pixels), tune to make sure GD and PHP can handle such big images
+                                                  
\ No newline at end of file
diff --git a/src-backup/includes/phpqrcode/qrconst.php b/src-backup/includes/phpqrcode/qrconst.php
new file mode 100644
index 0000000..9fac9fd
--- /dev/null
+++ b/src-backup/includes/phpqrcode/qrconst.php
@@ -0,0 +1,54 @@
+<?php
+
+/*
+ * PHP QR Code encoder
+ *
+ * Common constants
+ *
+ * Based on libqrencode C library distributed under LGPL 2.1
+ * Copyright (C) 2006, 2007, 2008, 2009 Kentaro Fukuchi <fukuchi@megaui.net>
+ *
+ * PHP QR Code is distributed under LGPL 3
+ * Copyright (C) 2010 Dominik Dzienia <deltalab at poczta dot fm>
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 3 of the License, or any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+ 
+	// Encoding modes
+	 
+	define('QR_MODE_NUL', -1);
+	define('QR_MODE_NUM', 0);
+	define('QR_MODE_AN', 1);
+	define('QR_MODE_8', 2);
+	define('QR_MODE_KANJI', 3);
+	define('QR_MODE_STRUCTURE', 4);
+
+	// Levels of error correction.
+
+	define('QR_ECLEVEL_L', 0);
+	define('QR_ECLEVEL_M', 1);
+	define('QR_ECLEVEL_Q', 2);
+	define('QR_ECLEVEL_H', 3);
+	
+	// Supported output formats
+	
+	define('QR_FORMAT_TEXT', 0);
+	define('QR_FORMAT_PNG',  1);
+	
+	class qrstr {
+		public static function set(&$srctab, $x, $y, $repl, $replLen = false) {
+			$srctab[$y] = substr_replace($srctab[$y], ($replLen !== false)?substr($repl,0,$replLen):$repl, $x, ($replLen !== false)?$replLen:strlen($repl));
+		}
+	}	
\ No newline at end of file
diff --git a/src-backup/includes/phpqrcode/qrencode.php b/src-backup/includes/phpqrcode/qrencode.php
new file mode 100644
index 0000000..4b77a5b
--- /dev/null
+++ b/src-backup/includes/phpqrcode/qrencode.php
@@ -0,0 +1,502 @@
+<?php
+/*
+ * PHP QR Code encoder
+ *
+ * Main encoder classes.
+ *
+ * Based on libqrencode C library distributed under LGPL 2.1
+ * Copyright (C) 2006, 2007, 2008, 2009 Kentaro Fukuchi <fukuchi@megaui.net>
+ *
+ * PHP QR Code is distributed under LGPL 3
+ * Copyright (C) 2010 Dominik Dzienia <deltalab at poczta dot fm>
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 3 of the License, or any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+ 
+    class QRrsblock {
+        public $dataLength;
+        public $data = array();
+        public $eccLength;
+        public $ecc = array();
+        
+        public function __construct($dl, $data, $el, &$ecc, QRrsItem $rs)
+        {
+            $rs->encode_rs_char($data, $ecc);
+        
+            $this->dataLength = $dl;
+            $this->data = $data;
+            $this->eccLength = $el;
+            $this->ecc = $ecc;
+        }
+    };
+    
+    //##########################################################################
+
+    class QRrawcode {
+        public $version;
+        public $datacode = array();
+        public $ecccode = array();
+        public $blocks;
+        public $rsblocks = array(); //of RSblock
+        public $count;
+        public $dataLength;
+        public $eccLength;
+        public $b1;
+        
+        //----------------------------------------------------------------------
+        public function __construct(QRinput $input)
+        {
+            $spec = array(0,0,0,0,0);
+            
+            $this->datacode = $input->getByteStream();
+            if(is_null($this->datacode)) {
+                throw new Exception('null imput string');
+            }
+
+            QRspec::getEccSpec($input->getVersion(), $input->getErrorCorrectionLevel(), $spec);
+
+            $this->version = $input->getVersion();
+            $this->b1 = QRspec::rsBlockNum1($spec);
+            $this->dataLength = QRspec::rsDataLength($spec);
+            $this->eccLength = QRspec::rsEccLength($spec);
+            $this->ecccode = array_fill(0, $this->eccLength, 0);
+            $this->blocks = QRspec::rsBlockNum($spec);
+            
+            $ret = $this->init($spec);
+            if($ret < 0) {
+                throw new Exception('block alloc error');
+                return null;
+            }
+
+            $this->count = 0;
+        }
+        
+        //----------------------------------------------------------------------
+        public function init(array $spec)
+        {
+            $dl = QRspec::rsDataCodes1($spec);
+            $el = QRspec::rsEccCodes1($spec);
+            $rs = QRrs::init_rs(8, 0x11d, 0, 1, $el, 255 - $dl - $el);
+            
+
+            $blockNo = 0;
+            $dataPos = 0;
+            $eccPos = 0;
+            for($i=0; $i<QRspec::rsBlockNum1($spec); $i++) {
+                $ecc = array_slice($this->ecccode,$eccPos);
+                $this->rsblocks[$blockNo] = new QRrsblock($dl, array_slice($this->datacode, $dataPos), $el,  $ecc, $rs);
+                $this->ecccode = array_merge(array_slice($this->ecccode,0, $eccPos), $ecc);
+                
+                $dataPos += $dl;
+                $eccPos += $el;
+                $blockNo++;
+            }
+
+            if(QRspec::rsBlockNum2($spec) == 0)
+                return 0;
+
+            $dl = QRspec::rsDataCodes2($spec);
+            $el = QRspec::rsEccCodes2($spec);
+            $rs = QRrs::init_rs(8, 0x11d, 0, 1, $el, 255 - $dl - $el);
+            
+            if($rs == NULL) return -1;
+            
+            for($i=0; $i<QRspec::rsBlockNum2($spec); $i++) {
+                $ecc = array_slice($this->ecccode,$eccPos);
+                $this->rsblocks[$blockNo] = new QRrsblock($dl, array_slice($this->datacode, $dataPos), $el, $ecc, $rs);
+                $this->ecccode = array_merge(array_slice($this->ecccode,0, $eccPos), $ecc);
+                
+                $dataPos += $dl;
+                $eccPos += $el;
+                $blockNo++;
+            }
+
+            return 0;
+        }
+        
+        //----------------------------------------------------------------------
+        public function getCode()
+        {
+            $ret;
+
+            if($this->count < $this->dataLength) {
+                $row = $this->count % $this->blocks;
+                $col = $this->count / $this->blocks;
+                if($col >= $this->rsblocks[0]->dataLength) {
+                    $row += $this->b1;
+                }
+                $ret = $this->rsblocks[$row]->data[$col];
+            } else if($this->count < $this->dataLength + $this->eccLength) {
+                $row = ($this->count - $this->dataLength) % $this->blocks;
+                $col = ($this->count - $this->dataLength) / $this->blocks;
+                $ret = $this->rsblocks[$row]->ecc[$col];
+            } else {
+                return 0;
+            }
+            $this->count++;
+            
+            return $ret;
+        }
+    }
+
+    //##########################################################################
+    
+    class QRcode {
+    
+        public $version;
+        public $width;
+        public $data; 
+        
+        //----------------------------------------------------------------------
+        public function encodeMask(QRinput $input, $mask)
+        {
+            if($input->getVersion() < 0 || $input->getVersion() > QRSPEC_VERSION_MAX) {
+                throw new Exception('wrong version');
+            }
+            if($input->getErrorCorrectionLevel() > QR_ECLEVEL_H) {
+                throw new Exception('wrong level');
+            }
+
+            $raw = new QRrawcode($input);
+            
+            QRtools::markTime('after_raw');
+            
+            $version = $raw->version;
+            $width = QRspec::getWidth($version);
+            $frame = QRspec::newFrame($version);
+            
+            $filler = new FrameFiller($width, $frame);
+            if(is_null($filler)) {
+                return NULL;
+            }
+
+            // inteleaved data and ecc codes
+            for($i=0; $i<$raw->dataLength + $raw->eccLength; $i++) {
+                $code = $raw->getCode();
+                $bit = 0x80;
+                for($j=0; $j<8; $j++) {
+                    $addr = $filler->next();
+                    $filler->setFrameAt($addr, 0x02 | (($bit & $code) != 0));
+                    $bit = $bit >> 1;
+                }
+            }
+            
+            QRtools::markTime('after_filler');
+            
+            unset($raw);
+            
+            // remainder bits
+            $j = QRspec::getRemainder($version);
+            for($i=0; $i<$j; $i++) {
+                $addr = $filler->next();
+                $filler->setFrameAt($addr, 0x02);
+            }
+            
+            $frame = $filler->frame;
+            unset($filler);
+            
+            
+            // masking
+            $maskObj = new QRmask();
+            if($mask < 0) {
+            
+                if (QR_FIND_BEST_MASK) {
+                    $masked = $maskObj->mask($width, $frame, $input->getErrorCorrectionLevel());
+                } else {
+                    $masked = $maskObj->makeMask($width, $frame, (intval(QR_DEFAULT_MASK) % 8), $input->getErrorCorrectionLevel());
+                }
+            } else {
+                $masked = $maskObj->makeMask($width, $frame, $mask, $input->getErrorCorrectionLevel());
+            }
+            
+            if($masked == NULL) {
+                return NULL;
+            }
+            
+            QRtools::markTime('after_mask');
+            
+            $this->version = $version;
+            $this->width = $width;
+            $this->data = $masked;
+            
+            return $this;
+        }
+    
+        //----------------------------------------------------------------------
+        public function encodeInput(QRinput $input)
+        {
+            return $this->encodeMask($input, -1);
+        }
+        
+        //----------------------------------------------------------------------
+        public function encodeString8bit($string, $version, $level)
+        {
+            if(string == NULL) {
+                throw new Exception('empty string!');
+                return NULL;
+            }
+
+            $input = new QRinput($version, $level);
+            if($input == NULL) return NULL;
+
+            $ret = $input->append($input, QR_MODE_8, strlen($string), str_split($string));
+            if($ret < 0) {
+                unset($input);
+                return NULL;
+            }
+            return $this->encodeInput($input);
+        }
+
+        //----------------------------------------------------------------------
+        public function encodeString($string, $version, $level, $hint, $casesensitive)
+        {
+
+            if($hint != QR_MODE_8 && $hint != QR_MODE_KANJI) {
+                throw new Exception('bad hint');
+                return NULL;
+            }
+
+            $input = new QRinput($version, $level);
+            if($input == NULL) return NULL;
+
+            $ret = QRsplit::splitStringToQRinput($string, $input, $hint, $casesensitive);
+            if($ret < 0) {
+                return NULL;
+            }
+
+            return $this->encodeInput($input);
+        }
+        
+        //----------------------------------------------------------------------
+        public static function png($text, $outfile = false, $level = QR_ECLEVEL_L, $size = 3, $margin = 4, $saveandprint=false) 
+        {
+            $enc = QRencode::factory($level, $size, $margin);
+            return $enc->encodePNG($text, $outfile, $saveandprint=false);
+        }
+
+        //----------------------------------------------------------------------
+        public static function text($text, $outfile = false, $level = QR_ECLEVEL_L, $size = 3, $margin = 4) 
+        {
+            $enc = QRencode::factory($level, $size, $margin);
+            return $enc->encode($text, $outfile);
+        }
+
+        //----------------------------------------------------------------------
+        public static function raw($text, $outfile = false, $level = QR_ECLEVEL_L, $size = 3, $margin = 4) 
+        {
+            $enc = QRencode::factory($level, $size, $margin);
+            return $enc->encodeRAW($text, $outfile);
+        }
+    }
+    
+    //##########################################################################
+    
+    class FrameFiller {
+    
+        public $width;
+        public $frame;
+        public $x;
+        public $y;
+        public $dir;
+        public $bit;
+        
+        //----------------------------------------------------------------------
+        public function __construct($width, &$frame)
+        {
+            $this->width = $width;
+            $this->frame = $frame;
+            $this->x = $width - 1;
+            $this->y = $width - 1;
+            $this->dir = -1;
+            $this->bit = -1;
+        }
+        
+        //----------------------------------------------------------------------
+        public function setFrameAt($at, $val)
+        {
+            $this->frame[$at['y']][$at['x']] = chr($val);
+        }
+        
+        //----------------------------------------------------------------------
+        public function getFrameAt($at)
+        {
+            return ord($this->frame[$at['y']][$at['x']]);
+        }
+        
+        //----------------------------------------------------------------------
+        public function next()
+        {
+            do {
+            
+                if($this->bit == -1) {
+                    $this->bit = 0;
+                    return array('x'=>$this->x, 'y'=>$this->y);
+                }
+
+                $x = $this->x;
+                $y = $this->y;
+                $w = $this->width;
+
+                if($this->bit == 0) {
+                    $x--;
+                    $this->bit++;
+                } else {
+                    $x++;
+                    $y += $this->dir;
+                    $this->bit--;
+                }
+
+                if($this->dir < 0) {
+                    if($y < 0) {
+                        $y = 0;
+                        $x -= 2;
+                        $this->dir = 1;
+                        if($x == 6) {
+                            $x--;
+                            $y = 9;
+                        }
+                    }
+                } else {
+                    if($y == $w) {
+                        $y = $w - 1;
+                        $x -= 2;
+                        $this->dir = -1;
+                        if($x == 6) {
+                            $x--;
+                            $y -= 8;
+                        }
+                    }
+                }
+                if($x < 0 || $y < 0) return null;
+
+                $this->x = $x;
+                $this->y = $y;
+
+            } while(ord($this->frame[$y][$x]) & 0x80);
+                        
+            return array('x'=>$x, 'y'=>$y);
+        }
+        
+    } ;
+    
+    //##########################################################################    
+    
+    class QRencode {
+    
+        public $casesensitive = true;
+        public $eightbit = false;
+        
+        public $version = 0;
+        public $size = 3;
+        public $margin = 4;
+        
+        public $structured = 0; // not supported yet
+        
+        public $level = QR_ECLEVEL_L;
+        public $hint = QR_MODE_8;
+        
+        //----------------------------------------------------------------------
+        public static function factory($level = QR_ECLEVEL_L, $size = 3, $margin = 4)
+        {
+            $enc = new QRencode();
+            $enc->size = $size;
+            $enc->margin = $margin;
+            
+            switch ($level.'') {
+                case '0':
+                case '1':
+                case '2':
+                case '3':
+                        $enc->level = $level;
+                    break;
+                case 'l':
+                case 'L':
+                        $enc->level = QR_ECLEVEL_L;
+                    break;
+                case 'm':
+                case 'M':
+                        $enc->level = QR_ECLEVEL_M;
+                    break;
+                case 'q':
+                case 'Q':
+                        $enc->level = QR_ECLEVEL_Q;
+                    break;
+                case 'h':
+                case 'H':
+                        $enc->level = QR_ECLEVEL_H;
+                    break;
+            }
+            
+            return $enc;
+        }
+        
+        //----------------------------------------------------------------------
+        public function encodeRAW($intext, $outfile = false) 
+        {
+            $code = new QRcode();
+
+            if($this->eightbit) {
+                $code->encodeString8bit($intext, $this->version, $this->level);
+            } else {
+                $code->encodeString($intext, $this->version, $this->level, $this->hint, $this->casesensitive);
+            }
+            
+            return $code->data;
+        }
+
+        //----------------------------------------------------------------------
+        public function encode($intext, $outfile = false) 
+        {
+            $code = new QRcode();
+
+            if($this->eightbit) {
+                $code->encodeString8bit($intext, $this->version, $this->level);
+            } else {
+                $code->encodeString($intext, $this->version, $this->level, $this->hint, $this->casesensitive);
+            }
+            
+            QRtools::markTime('after_encode');
+            
+            if ($outfile!== false) {
+                file_put_contents($outfile, join("\n", QRtools::binarize($code->data)));
+            } else {
+                return QRtools::binarize($code->data);
+            }
+        }
+        
+        //----------------------------------------------------------------------
+        public function encodePNG($intext, $outfile = false,$saveandprint=false) 
+        {
+            try {
+            
+                ob_start();
+                $tab = $this->encode($intext);
+                $err = ob_get_contents();
+                ob_end_clean();
+                
+                if ($err != '')
+                    QRtools::log($outfile, $err);
+                
+                $maxSize = (int)(QR_PNG_MAXIMUM_SIZE / (count($tab)+2*$this->margin));
+                
+                QRimage::png($tab, $outfile, min(max(1, $this->size), $maxSize), $this->margin,$saveandprint);
+            
+            } catch (Exception $e) {
+            
+                QRtools::log($outfile, $e->getMessage());
+            
+            }
+        }
+    }
diff --git a/src-backup/includes/phpqrcode/qrimage.php b/src-backup/includes/phpqrcode/qrimage.php
new file mode 100644
index 0000000..10b0a6e
--- /dev/null
+++ b/src-backup/includes/phpqrcode/qrimage.php
@@ -0,0 +1,95 @@
+<?php
+/*
+ * PHP QR Code encoder
+ *
+ * Image output of code using GD2
+ *
+ * PHP QR Code is distributed under LGPL 3
+ * Copyright (C) 2010 Dominik Dzienia <deltalab at poczta dot fm>
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 3 of the License, or any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+ 
+    define('QR_IMAGE', true);
+
+    class QRimage {
+    
+        //----------------------------------------------------------------------
+        public static function png($frame, $filename = false, $pixelPerPoint = 4, $outerFrame = 4,$saveandprint=FALSE) 
+        {
+            $image = self::image($frame, $pixelPerPoint, $outerFrame);
+            
+            if ($filename === false) {
+                Header("Content-type: image/png");
+                ImagePng($image);
+            } else {
+                if($saveandprint===TRUE){
+                    ImagePng($image, $filename);
+                    header("Content-type: image/png");
+                    ImagePng($image);
+                }else{
+                    ImagePng($image, $filename);
+                }
+            }
+            
+            ImageDestroy($image);
+        }
+    
+        //----------------------------------------------------------------------
+        public static function jpg($frame, $filename = false, $pixelPerPoint = 8, $outerFrame = 4, $q = 85) 
+        {
+            $image = self::image($frame, $pixelPerPoint, $outerFrame);
+            
+            if ($filename === false) {
+                Header("Content-type: image/jpeg");
+                ImageJpeg($image, null, $q);
+            } else {
+                ImageJpeg($image, $filename, $q);            
+            }
+            
+            ImageDestroy($image);
+        }
+    
+        //----------------------------------------------------------------------
+        private static function image($frame, $pixelPerPoint = 4, $outerFrame = 4) 
+        {
+            $h = count($frame);
+            $w = strlen($frame[0]);
+            
+            $imgW = $w + 2*$outerFrame;
+            $imgH = $h + 2*$outerFrame;
+            
+            $base_image =ImageCreate($imgW, $imgH);
+            
+            $col[0] = ImageColorAllocate($base_image,255,255,255);
+            $col[1] = ImageColorAllocate($base_image,0,0,0);
+
+            imagefill($base_image, 0, 0, $col[0]);
+
+            for($y=0; $y<$h; $y++) {
+                for($x=0; $x<$w; $x++) {
+                    if ($frame[$y][$x] == '1') {
+                        ImageSetPixel($base_image,$x+$outerFrame,$y+$outerFrame,$col[1]); 
+                    }
+                }
+            }
+            
+            $target_image =ImageCreate($imgW * $pixelPerPoint, $imgH * $pixelPerPoint);
+            ImageCopyResized($target_image, $base_image, 0, 0, 0, 0, $imgW * $pixelPerPoint, $imgH * $pixelPerPoint, $imgW, $imgH);
+            ImageDestroy($base_image);
+            
+            return $target_image;
+        }
+    }
\ No newline at end of file
diff --git a/src-backup/includes/phpqrcode/qrinput.php b/src-backup/includes/phpqrcode/qrinput.php
new file mode 100644
index 0000000..0f6d7f9
--- /dev/null
+++ b/src-backup/includes/phpqrcode/qrinput.php
@@ -0,0 +1,729 @@
+<?php
+/*
+ * PHP QR Code encoder
+ *
+ * Input encoding class
+ *
+ * Based on libqrencode C library distributed under LGPL 2.1
+ * Copyright (C) 2006, 2007, 2008, 2009 Kentaro Fukuchi <fukuchi@megaui.net>
+ *
+ * PHP QR Code is distributed under LGPL 3
+ * Copyright (C) 2010 Dominik Dzienia <deltalab at poczta dot fm>
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 3 of the License, or any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+ 
+    define('STRUCTURE_HEADER_BITS',  20);
+    define('MAX_STRUCTURED_SYMBOLS', 16);
+
+    class QRinputItem {
+    
+        public $mode;
+        public $size;
+        public $data;
+        public $bstream;
+
+        public function __construct($mode, $size, $data, $bstream = null) 
+        {
+            $setData = array_slice($data, 0, $size);
+            
+            if (count($setData) < $size) {
+                $setData = array_merge($setData, array_fill(0,$size-count($setData),0));
+            }
+        
+            if(!QRinput::check($mode, $size, $setData)) {
+                throw new Exception('Error m:'.$mode.',s:'.$size.',d:'.join(',',$setData));
+                return null;
+            }
+            
+            $this->mode = $mode;
+            $this->size = $size;
+            $this->data = $setData;
+            $this->bstream = $bstream;
+        }
+        
+        //----------------------------------------------------------------------
+        public function encodeModeNum($version)
+        {
+            try {
+            
+                $words = (int)($this->size / 3);
+                $bs = new QRbitstream();
+                
+                $val = 0x1;
+                $bs->appendNum(4, $val);
+                $bs->appendNum(QRspec::lengthIndicator(QR_MODE_NUM, $version), $this->size);
+
+                for($i=0; $i<$words; $i++) {
+                    $val  = (ord($this->data[$i*3  ]) - ord('0')) * 100;
+                    $val += (ord($this->data[$i*3+1]) - ord('0')) * 10;
+                    $val += (ord($this->data[$i*3+2]) - ord('0'));
+                    $bs->appendNum(10, $val);
+                }
+
+                if($this->size - $words * 3 == 1) {
+                    $val = ord($this->data[$words*3]) - ord('0');
+                    $bs->appendNum(4, $val);
+                } else if($this->size - $words * 3 == 2) {
+                    $val  = (ord($this->data[$words*3  ]) - ord('0')) * 10;
+                    $val += (ord($this->data[$words*3+1]) - ord('0'));
+                    $bs->appendNum(7, $val);
+                }
+
+                $this->bstream = $bs;
+                return 0;
+                
+            } catch (Exception $e) {
+                return -1;
+            }
+        }
+        
+        //----------------------------------------------------------------------
+        public function encodeModeAn($version)
+        {
+            try {
+                $words = (int)($this->size / 2);
+                $bs = new QRbitstream();
+                
+                $bs->appendNum(4, 0x02);
+                $bs->appendNum(QRspec::lengthIndicator(QR_MODE_AN, $version), $this->size);
+
+                for($i=0; $i<$words; $i++) {
+                    $val  = (int)QRinput::lookAnTable(ord($this->data[$i*2  ])) * 45;
+                    $val += (int)QRinput::lookAnTable(ord($this->data[$i*2+1]));
+
+                    $bs->appendNum(11, $val);
+                }
+
+                if($this->size & 1) {
+                    $val = QRinput::lookAnTable(ord($this->data[$words * 2]));
+                    $bs->appendNum(6, $val);
+                }
+        
+                $this->bstream = $bs;
+                return 0;
+            
+            } catch (Exception $e) {
+                return -1;
+            }
+        }
+        
+        //----------------------------------------------------------------------
+        public function encodeMode8($version)
+        {
+            try {
+                $bs = new QRbitstream();
+
+                $bs->appendNum(4, 0x4);
+                $bs->appendNum(QRspec::lengthIndicator(QR_MODE_8, $version), $this->size);
+
+                for($i=0; $i<$this->size; $i++) {
+                    $bs->appendNum(8, ord($this->data[$i]));
+                }
+
+                $this->bstream = $bs;
+                return 0;
+            
+            } catch (Exception $e) {
+                return -1;
+            }
+        }
+        
+        //----------------------------------------------------------------------
+        public function encodeModeKanji($version)
+        {
+            try {
+
+                $bs = new QRbitrtream();
+                
+                $bs->appendNum(4, 0x8);
+                $bs->appendNum(QRspec::lengthIndicator(QR_MODE_KANJI, $version), (int)($this->size / 2));
+
+                for($i=0; $i<$this->size; $i+=2) {
+                    $val = (ord($this->data[$i]) << 8) | ord($this->data[$i+1]);
+                    if($val <= 0x9ffc) {
+                        $val -= 0x8140;
+                    } else {
+                        $val -= 0xc140;
+                    }
+                    
+                    $h = ($val >> 8) * 0xc0;
+                    $val = ($val & 0xff) + $h;
+
+                    $bs->appendNum(13, $val);
+                }
+
+                $this->bstream = $bs;
+                return 0;
+            
+            } catch (Exception $e) {
+                return -1;
+            }
+        }
+
+        //----------------------------------------------------------------------
+        public function encodeModeStructure()
+        {
+            try {
+                $bs =  new QRbitstream();
+                
+                $bs->appendNum(4, 0x03);
+                $bs->appendNum(4, ord($this->data[1]) - 1);
+                $bs->appendNum(4, ord($this->data[0]) - 1);
+                $bs->appendNum(8, ord($this->data[2]));
+
+                $this->bstream = $bs;
+                return 0;
+            
+            } catch (Exception $e) {
+                return -1;
+            }
+        }
+        
+        //----------------------------------------------------------------------
+        public function estimateBitStreamSizeOfEntry($version)
+        {
+            $bits = 0;
+
+            if($version == 0) 
+                $version = 1;
+
+            switch($this->mode) {
+                case QR_MODE_NUM:        $bits = QRinput::estimateBitsModeNum($this->size);    break;
+                case QR_MODE_AN:        $bits = QRinput::estimateBitsModeAn($this->size);    break;
+                case QR_MODE_8:            $bits = QRinput::estimateBitsMode8($this->size);    break;
+                case QR_MODE_KANJI:        $bits = QRinput::estimateBitsModeKanji($this->size);break;
+                case QR_MODE_STRUCTURE:    return STRUCTURE_HEADER_BITS;            
+                default:
+                    return 0;
+            }
+
+            $l = QRspec::lengthIndicator($this->mode, $version);
+            $m = 1 << $l;
+            $num = (int)(($this->size + $m - 1) / $m);
+
+            $bits += $num * (4 + $l);
+
+            return $bits;
+        }
+        
+        //----------------------------------------------------------------------
+        public function encodeBitStream($version)
+        {
+            try {
+            
+                unset($this->bstream);
+                $words = QRspec::maximumWords($this->mode, $version);
+                
+                if($this->size > $words) {
+                
+                    $st1 = new QRinputItem($this->mode, $words, $this->data);
+                    $st2 = new QRinputItem($this->mode, $this->size - $words, array_slice($this->data, $words));
+
+                    $st1->encodeBitStream($version);
+                    $st2->encodeBitStream($version);
+                    
+                    $this->bstream = new QRbitstream();
+                    $this->bstream->append($st1->bstream);
+                    $this->bstream->append($st2->bstream);
+                    
+                    unset($st1);
+                    unset($st2);
+                    
+                } else {
+                    
+                    $ret = 0;
+                    
+                    switch($this->mode) {
+                        case QR_MODE_NUM:        $ret = $this->encodeModeNum($version);    break;
+                        case QR_MODE_AN:        $ret = $this->encodeModeAn($version);    break;
+                        case QR_MODE_8:            $ret = $this->encodeMode8($version);    break;
+                        case QR_MODE_KANJI:        $ret = $this->encodeModeKanji($version);break;
+                        case QR_MODE_STRUCTURE:    $ret = $this->encodeModeStructure();    break;
+                        
+                        default:
+                            break;
+                    }
+                    
+                    if($ret < 0)
+                        return -1;
+                }
+
+                return $this->bstream->size();
+            
+            } catch (Exception $e) {
+                return -1;
+            }
+        }
+    };
+    
+    //##########################################################################
+
+    class QRinput {
+
+        public $items;
+        
+        private $version;
+        private $level;
+        
+        //----------------------------------------------------------------------
+        public function __construct($version = 0, $level = QR_ECLEVEL_L)
+        {
+            if ($version < 0 || $version > QRSPEC_VERSION_MAX || $level > QR_ECLEVEL_H) {
+                throw new Exception('Invalid version no');
+                return NULL;
+            }
+            
+            $this->version = $version;
+            $this->level = $level;
+        }
+        
+        //----------------------------------------------------------------------
+        public function getVersion()
+        {
+            return $this->version;
+        }
+        
+        //----------------------------------------------------------------------
+        public function setVersion($version)
+        {
+            if($version < 0 || $version > QRSPEC_VERSION_MAX) {
+                throw new Exception('Invalid version no');
+                return -1;
+            }
+
+            $this->version = $version;
+
+            return 0;
+        }
+        
+        //----------------------------------------------------------------------
+        public function getErrorCorrectionLevel()
+        {
+            return $this->level;
+        }
+
+        //----------------------------------------------------------------------
+        public function setErrorCorrectionLevel($level)
+        {
+            if($level > QR_ECLEVEL_H) {
+                throw new Exception('Invalid ECLEVEL');
+                return -1;
+            }
+
+            $this->level = $level;
+
+            return 0;
+        }
+        
+        //----------------------------------------------------------------------
+        public function appendEntry(QRinputItem $entry)
+        {
+            $this->items[] = $entry;
+        }
+        
+        //----------------------------------------------------------------------
+        public function append($mode, $size, $data)
+        {
+            try {
+                $entry = new QRinputItem($mode, $size, $data);
+                $this->items[] = $entry;
+                return 0;
+            } catch (Exception $e) {
+                return -1;
+            }
+        }
+        
+        //----------------------------------------------------------------------
+        
+        public function insertStructuredAppendHeader($size, $index, $parity)
+        {
+            if( $size > MAX_STRUCTURED_SYMBOLS ) {
+                throw new Exception('insertStructuredAppendHeader wrong size');
+            }
+            
+            if( $index <= 0 || $index > MAX_STRUCTURED_SYMBOLS ) {
+                throw new Exception('insertStructuredAppendHeader wrong index');
+            }
+
+            $buf = array($size, $index, $parity);
+            
+            try {
+                $entry = new QRinputItem(QR_MODE_STRUCTURE, 3, buf);
+                array_unshift($this->items, $entry);
+                return 0;
+            } catch (Exception $e) {
+                return -1;
+            }
+        }
+
+        //----------------------------------------------------------------------
+        public function calcParity()
+        {
+            $parity = 0;
+            
+            foreach($this->items as $item) {
+                if($item->mode != QR_MODE_STRUCTURE) {
+                    for($i=$item->size-1; $i>=0; $i--) {
+                        $parity ^= $item->data[$i];
+                    }
+                }
+            }
+
+            return $parity;
+        }
+        
+        //----------------------------------------------------------------------
+        public static function checkModeNum($size, $data)
+        {
+            for($i=0; $i<$size; $i++) {
+                if((ord($data[$i]) < ord('0')) || (ord($data[$i]) > ord('9'))){
+                    return false;
+                }
+            }
+
+            return true;
+        }
+
+        //----------------------------------------------------------------------
+        public static function estimateBitsModeNum($size)
+        {
+            $w = (int)$size / 3;
+            $bits = $w * 10;
+            
+            switch($size - $w * 3) {
+                case 1:
+                    $bits += 4;
+                    break;
+                case 2:
+                    $bits += 7;
+                    break;
+                default:
+                    break;
+            }
+
+            return $bits;
+        }
+        
+        //----------------------------------------------------------------------
+        public static $anTable = array(
+            -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
+            -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
+            36, -1, -1, -1, 37, 38, -1, -1, -1, -1, 39, 40, -1, 41, 42, 43,
+             0,  1,  2,  3,  4,  5,  6,  7,  8,  9, 44, -1, -1, -1, -1, -1,
+            -1, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24,
+            25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, -1, -1, -1, -1, -1,
+            -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
+            -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1
+        );
+        
+        //----------------------------------------------------------------------
+        public static function lookAnTable($c)
+        {
+            return (($c > 127)?-1:self::$anTable[$c]);
+        }
+        
+        //----------------------------------------------------------------------
+        public static function checkModeAn($size, $data)
+        {
+            for($i=0; $i<$size; $i++) {
+                if (self::lookAnTable(ord($data[$i])) == -1) {
+                    return false;
+                }
+            }
+
+            return true;
+        }
+        
+        //----------------------------------------------------------------------
+        public static function estimateBitsModeAn($size)
+        {
+            $w = (int)($size / 2);
+            $bits = $w * 11;
+            
+            if($size & 1) {
+                $bits += 6;
+            }
+
+            return $bits;
+        }
+    
+        //----------------------------------------------------------------------
+        public static function estimateBitsMode8($size)
+        {
+            return $size * 8;
+        }
+        
+        //----------------------------------------------------------------------
+        public function estimateBitsModeKanji($size)
+        {
+            return (int)(($size / 2) * 13);
+        }
+        
+        //----------------------------------------------------------------------
+        public static function checkModeKanji($size, $data)
+        {
+            if($size & 1)
+                return false;
+
+            for($i=0; $i<$size; $i+=2) {
+                $val = (ord($data[$i]) << 8) | ord($data[$i+1]);
+                if( $val < 0x8140 
+                || ($val > 0x9ffc && $val < 0xe040) 
+                || $val > 0xebbf) {
+                    return false;
+                }
+            }
+
+            return true;
+        }
+
+        /***********************************************************************
+         * Validation
+         **********************************************************************/
+
+        public static function check($mode, $size, $data)
+        {
+            if($size <= 0) 
+                return false;
+
+            switch($mode) {
+                case QR_MODE_NUM:       return self::checkModeNum($size, $data);   break;
+                case QR_MODE_AN:        return self::checkModeAn($size, $data);    break;
+                case QR_MODE_KANJI:     return self::checkModeKanji($size, $data); break;
+                case QR_MODE_8:         return true; break;
+                case QR_MODE_STRUCTURE: return true; break;
+                
+                default:
+                    break;
+            }
+
+            return false;
+        }
+        
+        
+        //----------------------------------------------------------------------
+        public function estimateBitStreamSize($version)
+        {
+            $bits = 0;
+
+            foreach($this->items as $item) {
+                $bits += $item->estimateBitStreamSizeOfEntry($version);
+            }
+
+            return $bits;
+        }
+        
+        //----------------------------------------------------------------------
+        public function estimateVersion()
+        {
+            $version = 0;
+            $prev = 0;
+            do {
+                $prev = $version;
+                $bits = $this->estimateBitStreamSize($prev);
+                $version = QRspec::getMinimumVersion((int)(($bits + 7) / 8), $this->level);
+                if ($version < 0) {
+                    return -1;
+                }
+            } while ($version > $prev);
+
+            return $version;
+        }
+        
+        //----------------------------------------------------------------------
+        public static function lengthOfCode($mode, $version, $bits)
+        {
+            $payload = $bits - 4 - QRspec::lengthIndicator($mode, $version);
+            switch($mode) {
+                case QR_MODE_NUM:
+                    $chunks = (int)($payload / 10);
+                    $remain = $payload - $chunks * 10;
+                    $size = $chunks * 3;
+                    if($remain >= 7) {
+                        $size += 2;
+                    } else if($remain >= 4) {
+                        $size += 1;
+                    }
+                    break;
+                case QR_MODE_AN:
+                    $chunks = (int)($payload / 11);
+                    $remain = $payload - $chunks * 11;
+                    $size = $chunks * 2;
+                    if($remain >= 6) 
+                        $size++;
+                    break;
+                case QR_MODE_8:
+                    $size = (int)($payload / 8);
+                    break;
+                case QR_MODE_KANJI:
+                    $size = (int)(($payload / 13) * 2);
+                    break;
+                case QR_MODE_STRUCTURE:
+                    $size = (int)($payload / 8);
+                    break;
+                default:
+                    $size = 0;
+                    break;
+            }
+            
+            $maxsize = QRspec::maximumWords($mode, $version);
+            if($size < 0) $size = 0;
+            if($size > $maxsize) $size = $maxsize;
+
+            return $size;
+        }
+        
+        //----------------------------------------------------------------------
+        public function createBitStream()
+        {
+            $total = 0;
+
+            foreach($this->items as $item) {
+                $bits = $item->encodeBitStream($this->version);
+                
+                if($bits < 0) 
+                    return -1;
+                    
+                $total += $bits;
+            }
+
+            return $total;
+        }
+        
+        //----------------------------------------------------------------------
+        public function convertData()
+        {
+            $ver = $this->estimateVersion();
+            if($ver > $this->getVersion()) {
+                $this->setVersion($ver);
+            }
+
+            for(;;) {
+                $bits = $this->createBitStream();
+                
+                if($bits < 0) 
+                    return -1;
+                    
+                $ver = QRspec::getMinimumVersion((int)(($bits + 7) / 8), $this->level);
+                if($ver < 0) {
+                    throw new Exception('WRONG VERSION');
+                    return -1;
+                } else if($ver > $this->getVersion()) {
+                    $this->setVersion($ver);
+                } else {
+                    break;
+                }
+            }
+
+            return 0;
+        }
+        
+        //----------------------------------------------------------------------
+        public function appendPaddingBit(&$bstream)
+        {
+            $bits = $bstream->size();
+            $maxwords = QRspec::getDataLength($this->version, $this->level);
+            $maxbits = $maxwords * 8;
+
+            if ($maxbits == $bits) {
+                return 0;
+            }
+
+            if ($maxbits - $bits < 5) {
+                return $bstream->appendNum($maxbits - $bits, 0);
+            }
+
+            $bits += 4;
+            $words = (int)(($bits + 7) / 8);
+
+            $padding = new QRbitstream();
+            $ret = $padding->appendNum($words * 8 - $bits + 4, 0);
+            
+            if($ret < 0) 
+                return $ret;
+
+            $padlen = $maxwords - $words;
+            
+            if($padlen > 0) {
+                
+                $padbuf = array();
+                for($i=0; $i<$padlen; $i++) {
+                    $padbuf[$i] = ($i&1)?0x11:0xec;
+                }
+                
+                $ret = $padding->appendBytes($padlen, $padbuf);
+                
+                if($ret < 0)
+                    return $ret;
+                
+            }
+
+            $ret = $bstream->append($padding);
+            
+            return $ret;
+        }
+
+        //----------------------------------------------------------------------
+        public function mergeBitStream()
+        {
+            if($this->convertData() < 0) {
+                return null;
+            }
+
+            $bstream = new QRbitstream();
+            
+            foreach($this->items as $item) {
+                $ret = $bstream->append($item->bstream);
+                if($ret < 0) {
+                    return null;
+                }
+            }
+
+            return $bstream;
+        }
+
+        //----------------------------------------------------------------------
+        public function getBitStream()
+        {
+
+            $bstream = $this->mergeBitStream();
+            
+            if($bstream == null) {
+                return null;
+            }
+            
+            $ret = $this->appendPaddingBit($bstream);
+            if($ret < 0) {
+                return null;
+            }
+
+            return $bstream;
+        }
+        
+        //----------------------------------------------------------------------
+        public function getByteStream()
+        {
+            $bstream = $this->getBitStream();
+            if($bstream == null) {
+                return null;
+            }
+            
+            return $bstream->toByte();
+        }
+    }
+        
+        
+    
\ No newline at end of file
diff --git a/src-backup/includes/phpqrcode/qrlib.php b/src-backup/includes/phpqrcode/qrlib.php
new file mode 100644
index 0000000..d55c4af
--- /dev/null
+++ b/src-backup/includes/phpqrcode/qrlib.php
@@ -0,0 +1,43 @@
+<?php
+/*
+ * PHP QR Code encoder
+ *
+ * Root library file, prepares environment and includes dependencies
+ *
+ * Based on libqrencode C library distributed under LGPL 2.1
+ * Copyright (C) 2006, 2007, 2008, 2009 Kentaro Fukuchi <fukuchi@megaui.net>
+ *
+ * PHP QR Code is distributed under LGPL 3
+ * Copyright (C) 2010 Dominik Dzienia <deltalab at poczta dot fm>
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 3 of the License, or any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+	
+	$QR_BASEDIR = dirname(__FILE__).DIRECTORY_SEPARATOR;
+	
+	// Required libs
+	
+	include $QR_BASEDIR."qrconst.php";
+	include $QR_BASEDIR."qrconfig.php";
+	include $QR_BASEDIR."qrtools.php";
+	include $QR_BASEDIR."qrspec.php";
+	include $QR_BASEDIR."qrimage.php";
+	include $QR_BASEDIR."qrinput.php";
+	include $QR_BASEDIR."qrbitstream.php";
+	include $QR_BASEDIR."qrsplit.php";
+	include $QR_BASEDIR."qrrscode.php";
+	include $QR_BASEDIR."qrmask.php";
+	include $QR_BASEDIR."qrencode.php";
+
diff --git a/src-backup/includes/phpqrcode/qrmask.php b/src-backup/includes/phpqrcode/qrmask.php
new file mode 100644
index 0000000..b14d7ae
--- /dev/null
+++ b/src-backup/includes/phpqrcode/qrmask.php
@@ -0,0 +1,328 @@
+<?php
+/*
+ * PHP QR Code encoder
+ *
+ * Masking
+ *
+ * Based on libqrencode C library distributed under LGPL 2.1
+ * Copyright (C) 2006, 2007, 2008, 2009 Kentaro Fukuchi <fukuchi@megaui.net>
+ *
+ * PHP QR Code is distributed under LGPL 3
+ * Copyright (C) 2010 Dominik Dzienia <deltalab at poczta dot fm>
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 3 of the License, or any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+ 
+	define('N1', 3);
+	define('N2', 3);
+	define('N3', 40);
+	define('N4', 10);
+
+	class QRmask {
+	
+		public $runLength = array();
+		
+		//----------------------------------------------------------------------
+		public function __construct() 
+        {
+            $this->runLength = array_fill(0, QRSPEC_WIDTH_MAX + 1, 0);
+        }
+        
+        //----------------------------------------------------------------------
+        public function writeFormatInformation($width, &$frame, $mask, $level)
+        {
+            $blacks = 0;
+            $format =  QRspec::getFormatInfo($mask, $level);
+
+            for($i=0; $i<8; $i++) {
+                if($format & 1) {
+                    $blacks += 2;
+                    $v = 0x85;
+                } else {
+                    $v = 0x84;
+                }
+                
+                $frame[8][$width - 1 - $i] = chr($v);
+                if($i < 6) {
+                    $frame[$i][8] = chr($v);
+                } else {
+                    $frame[$i + 1][8] = chr($v);
+                }
+                $format = $format >> 1;
+            }
+            
+            for($i=0; $i<7; $i++) {
+                if($format & 1) {
+                    $blacks += 2;
+                    $v = 0x85;
+                } else {
+                    $v = 0x84;
+                }
+                
+                $frame[$width - 7 + $i][8] = chr($v);
+                if($i == 0) {
+                    $frame[8][7] = chr($v);
+                } else {
+                    $frame[8][6 - $i] = chr($v);
+                }
+                
+                $format = $format >> 1;
+            }
+
+            return $blacks;
+        }
+        
+        //----------------------------------------------------------------------
+        public function mask0($x, $y) { return ($x+$y)&1;                       }
+        public function mask1($x, $y) { return ($y&1);                          }
+        public function mask2($x, $y) { return ($x%3);                          }
+        public function mask3($x, $y) { return ($x+$y)%3;                       }
+        public function mask4($x, $y) { return (((int)($y/2))+((int)($x/3)))&1; }
+        public function mask5($x, $y) { return (($x*$y)&1)+($x*$y)%3;           }
+        public function mask6($x, $y) { return ((($x*$y)&1)+($x*$y)%3)&1;       }
+        public function mask7($x, $y) { return ((($x*$y)%3)+(($x+$y)&1))&1;     }
+        
+        //----------------------------------------------------------------------
+        private function generateMaskNo($maskNo, $width, $frame)
+        {
+            $bitMask = array_fill(0, $width, array_fill(0, $width, 0));
+            
+            for($y=0; $y<$width; $y++) {
+                for($x=0; $x<$width; $x++) {
+                    if(ord($frame[$y][$x]) & 0x80) {
+                        $bitMask[$y][$x] = 0;
+                    } else {
+                        $maskFunc = call_user_func(array($this, 'mask'.$maskNo), $x, $y);
+                        $bitMask[$y][$x] = ($maskFunc == 0)?1:0;
+                    }
+                    
+                }
+            }
+            
+            return $bitMask;
+        }
+        
+        //----------------------------------------------------------------------
+        public static function serial($bitFrame)
+        {
+            $codeArr = array();
+            
+            foreach ($bitFrame as $line)
+                $codeArr[] = join('', $line);
+                
+            return gzcompress(join("\n", $codeArr), 9);
+        }
+        
+        //----------------------------------------------------------------------
+        public static function unserial($code)
+        {
+            $codeArr = array();
+            
+            $codeLines = explode("\n", gzuncompress($code));
+            foreach ($codeLines as $line)
+                $codeArr[] = str_split($line);
+            
+            return $codeArr;
+        }
+        
+        //----------------------------------------------------------------------
+        public function makeMaskNo($maskNo, $width, $s, &$d, $maskGenOnly = false) 
+        {
+            $b = 0;
+            $bitMask = array();
+            
+            $fileName = QR_CACHE_DIR.'mask_'.$maskNo.DIRECTORY_SEPARATOR.'mask_'.$width.'_'.$maskNo.'.dat';
+
+            if (QR_CACHEABLE) {
+                if (file_exists($fileName)) {
+                    $bitMask = self::unserial(file_get_contents($fileName));
+                } else {
+                    $bitMask = $this->generateMaskNo($maskNo, $width, $s, $d);
+                    if (!file_exists(QR_CACHE_DIR.'mask_'.$maskNo))
+                        mkdir(QR_CACHE_DIR.'mask_'.$maskNo);
+                    file_put_contents($fileName, self::serial($bitMask));
+                }
+            } else {
+                $bitMask = $this->generateMaskNo($maskNo, $width, $s, $d);
+            }
+
+            if ($maskGenOnly)
+                return;
+                
+            $d = $s;
+
+            for($y=0; $y<$width; $y++) {
+                for($x=0; $x<$width; $x++) {
+                    if($bitMask[$y][$x] == 1) {
+                        $d[$y][$x] = chr(ord($s[$y][$x]) ^ (int)$bitMask[$y][$x]);
+                    }
+                    $b += (int)(ord($d[$y][$x]) & 1);
+                }
+            }
+
+            return $b;
+        }
+        
+        //----------------------------------------------------------------------
+        public function makeMask($width, $frame, $maskNo, $level)
+        {
+            $masked = array_fill(0, $width, str_repeat("\0", $width));
+            $this->makeMaskNo($maskNo, $width, $frame, $masked);
+            $this->writeFormatInformation($width, $masked, $maskNo, $level);
+       
+            return $masked;
+        }
+        
+        //----------------------------------------------------------------------
+        public function calcN1N3($length)
+        {
+            $demerit = 0;
+
+            for($i=0; $i<$length; $i++) {
+                
+                if($this->runLength[$i] >= 5) {
+                    $demerit += (N1 + ($this->runLength[$i] - 5));
+                }
+                if($i & 1) {
+                    if(($i >= 3) && ($i < ($length-2)) && ($this->runLength[$i] % 3 == 0)) {
+                        $fact = (int)($this->runLength[$i] / 3);
+                        if(($this->runLength[$i-2] == $fact) &&
+                           ($this->runLength[$i-1] == $fact) &&
+                           ($this->runLength[$i+1] == $fact) &&
+                           ($this->runLength[$i+2] == $fact)) {
+                            if(($this->runLength[$i-3] < 0) || ($this->runLength[$i-3] >= (4 * $fact))) {
+                                $demerit += N3;
+                            } else if((($i+3) >= $length) || ($this->runLength[$i+3] >= (4 * $fact))) {
+                                $demerit += N3;
+                            }
+                        }
+                    }
+                }
+            }
+            return $demerit;
+        }
+        
+        //----------------------------------------------------------------------
+        public function evaluateSymbol($width, $frame)
+        {
+            $head = 0;
+            $demerit = 0;
+
+            for($y=0; $y<$width; $y++) {
+                $head = 0;
+                $this->runLength[0] = 1;
+                
+                $frameY = $frame[$y];
+                
+                if ($y>0)
+                    $frameYM = $frame[$y-1];
+                
+                for($x=0; $x<$width; $x++) {
+                    if(($x > 0) && ($y > 0)) {
+                        $b22 = ord($frameY[$x]) & ord($frameY[$x-1]) & ord($frameYM[$x]) & ord($frameYM[$x-1]);
+                        $w22 = ord($frameY[$x]) | ord($frameY[$x-1]) | ord($frameYM[$x]) | ord($frameYM[$x-1]);
+                        
+                        if(($b22 | ($w22 ^ 1))&1) {                                                                     
+                            $demerit += N2;
+                        }
+                    }
+                    if(($x == 0) && (ord($frameY[$x]) & 1)) {
+                        $this->runLength[0] = -1;
+                        $head = 1;
+                        $this->runLength[$head] = 1;
+                    } else if($x > 0) {
+                        if((ord($frameY[$x]) ^ ord($frameY[$x-1])) & 1) {
+                            $head++;
+                            $this->runLength[$head] = 1;
+                        } else {
+                            $this->runLength[$head]++;
+                        }
+                    }
+                }
+    
+                $demerit += $this->calcN1N3($head+1);
+            }
+
+            for($x=0; $x<$width; $x++) {
+                $head = 0;
+                $this->runLength[0] = 1;
+                
+                for($y=0; $y<$width; $y++) {
+                    if($y == 0 && (ord($frame[$y][$x]) & 1)) {
+                        $this->runLength[0] = -1;
+                        $head = 1;
+                        $this->runLength[$head] = 1;
+                    } else if($y > 0) {
+                        if((ord($frame[$y][$x]) ^ ord($frame[$y-1][$x])) & 1) {
+                            $head++;
+                            $this->runLength[$head] = 1;
+                        } else {
+                            $this->runLength[$head]++;
+                        }
+                    }
+                }
+            
+                $demerit += $this->calcN1N3($head+1);
+            }
+
+            return $demerit;
+        }
+        
+        
+        //----------------------------------------------------------------------
+        public function mask($width, $frame, $level)
+        {
+            $minDemerit = PHP_INT_MAX;
+            $bestMaskNum = 0;
+            $bestMask = array();
+            
+            $checked_masks = array(0,1,2,3,4,5,6,7);
+            
+            if (QR_FIND_FROM_RANDOM !== false) {
+            
+                $howManuOut = 8-(QR_FIND_FROM_RANDOM % 9);
+                for ($i = 0; $i <  $howManuOut; $i++) {
+                    $remPos = rand (0, count($checked_masks)-1);
+                    unset($checked_masks[$remPos]);
+                    $checked_masks = array_values($checked_masks);
+                }
+            
+            }
+            
+            $bestMask = $frame;
+             
+            foreach($checked_masks as $i) {
+                $mask = array_fill(0, $width, str_repeat("\0", $width));
+
+                $demerit = 0;
+                $blacks = 0;
+                $blacks  = $this->makeMaskNo($i, $width, $frame, $mask);
+                $blacks += $this->writeFormatInformation($width, $mask, $i, $level);
+                $blacks  = (int)(100 * $blacks / ($width * $width));
+                $demerit = (int)((int)(abs($blacks - 50) / 5) * N4);
+                $demerit += $this->evaluateSymbol($width, $mask);
+                
+                if($demerit < $minDemerit) {
+                    $minDemerit = $demerit;
+                    $bestMask = $mask;
+                    $bestMaskNum = $i;
+                }
+            }
+            
+            return $bestMask;
+        }
+        
+        //----------------------------------------------------------------------
+    }
diff --git a/src-backup/includes/phpqrcode/qrrscode.php b/src-backup/includes/phpqrcode/qrrscode.php
new file mode 100644
index 0000000..591129a
--- /dev/null
+++ b/src-backup/includes/phpqrcode/qrrscode.php
@@ -0,0 +1,210 @@
+<?php
+/*
+ * PHP QR Code encoder
+ *
+ * Reed-Solomon error correction support
+ * 
+ * Copyright (C) 2002, 2003, 2004, 2006 Phil Karn, KA9Q
+ * (libfec is released under the GNU Lesser General Public License.)
+ *
+ * Based on libqrencode C library distributed under LGPL 2.1
+ * Copyright (C) 2006, 2007, 2008, 2009 Kentaro Fukuchi <fukuchi@megaui.net>
+ *
+ * PHP QR Code is distributed under LGPL 3
+ * Copyright (C) 2010 Dominik Dzienia <deltalab at poczta dot fm>
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 3 of the License, or any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+ 
+    class QRrsItem {
+    
+        public $mm;                  // Bits per symbol 
+        public $nn;                  // Symbols per block (= (1<<mm)-1) 
+        public $alpha_to = array();  // log lookup table 
+        public $index_of = array();  // Antilog lookup table 
+        public $genpoly = array();   // Generator polynomial 
+        public $nroots;              // Number of generator roots = number of parity symbols 
+        public $fcr;                 // First consecutive root, index form 
+        public $prim;                // Primitive element, index form 
+        public $iprim;               // prim-th root of 1, index form 
+        public $pad;                 // Padding bytes in shortened block 
+        public $gfpoly;
+    
+        //----------------------------------------------------------------------
+        public function modnn($x)
+        {
+            while ($x >= $this->nn) {
+                $x -= $this->nn;
+                $x = ($x >> $this->mm) + ($x & $this->nn);
+            }
+            
+            return $x;
+        }
+        
+        //----------------------------------------------------------------------
+        public static function init_rs_char($symsize, $gfpoly, $fcr, $prim, $nroots, $pad)
+        {
+            // Common code for intializing a Reed-Solomon control block (char or int symbols)
+            // Copyright 2004 Phil Karn, KA9Q
+            // May be used under the terms of the GNU Lesser General Public License (LGPL)
+
+            $rs = null;
+            
+            // Check parameter ranges
+            if($symsize < 0 || $symsize > 8)                     return $rs;
+            if($fcr < 0 || $fcr >= (1<<$symsize))                return $rs;
+            if($prim <= 0 || $prim >= (1<<$symsize))             return $rs;
+            if($nroots < 0 || $nroots >= (1<<$symsize))          return $rs; // Can't have more roots than symbol values!
+            if($pad < 0 || $pad >= ((1<<$symsize) -1 - $nroots)) return $rs; // Too much padding
+
+            $rs = new QRrsItem();
+            $rs->mm = $symsize;
+            $rs->nn = (1<<$symsize)-1;
+            $rs->pad = $pad;
+
+            $rs->alpha_to = array_fill(0, $rs->nn+1, 0);
+            $rs->index_of = array_fill(0, $rs->nn+1, 0);
+          
+            // PHP style macro replacement ;)
+            $NN =& $rs->nn;
+            $A0 =& $NN;
+            
+            // Generate Galois field lookup tables
+            $rs->index_of[0] = $A0; // log(zero) = -inf
+            $rs->alpha_to[$A0] = 0; // alpha**-inf = 0
+            $sr = 1;
+          
+            for($i=0; $i<$rs->nn; $i++) {
+                $rs->index_of[$sr] = $i;
+                $rs->alpha_to[$i] = $sr;
+                $sr <<= 1;
+                if($sr & (1<<$symsize)) {
+                    $sr ^= $gfpoly;
+                }
+                $sr &= $rs->nn;
+            }
+            
+            if($sr != 1){
+                // field generator polynomial is not primitive!
+                $rs = NULL;
+                return $rs;
+            }
+
+            /* Form RS code generator polynomial from its roots */
+            $rs->genpoly = array_fill(0, $nroots+1, 0);
+        
+            $rs->fcr = $fcr;
+            $rs->prim = $prim;
+            $rs->nroots = $nroots;
+            $rs->gfpoly = $gfpoly;
+
+            /* Find prim-th root of 1, used in decoding */
+            for($iprim=1;($iprim % $prim) != 0;$iprim += $rs->nn)
+            ; // intentional empty-body loop!
+            
+            $rs->iprim = (int)($iprim / $prim);
+            $rs->genpoly[0] = 1;
+            
+            for ($i = 0,$root=$fcr*$prim; $i < $nroots; $i++, $root += $prim) {
+                $rs->genpoly[$i+1] = 1;
+
+                // Multiply rs->genpoly[] by  @**(root + x)
+                for ($j = $i; $j > 0; $j--) {
+                    if ($rs->genpoly[$j] != 0) {
+                        $rs->genpoly[$j] = $rs->genpoly[$j-1] ^ $rs->alpha_to[$rs->modnn($rs->index_of[$rs->genpoly[$j]] + $root)];
+                    } else {
+                        $rs->genpoly[$j] = $rs->genpoly[$j-1];
+                    }
+                }
+                // rs->genpoly[0] can never be zero
+                $rs->genpoly[0] = $rs->alpha_to[$rs->modnn($rs->index_of[$rs->genpoly[0]] + $root)];
+            }
+            
+            // convert rs->genpoly[] to index form for quicker encoding
+            for ($i = 0; $i <= $nroots; $i++)
+                $rs->genpoly[$i] = $rs->index_of[$rs->genpoly[$i]];
+
+            return $rs;
+        }
+        
+        //----------------------------------------------------------------------
+        public function encode_rs_char($data, &$parity)
+        {
+            $MM       =& $this->mm;
+            $NN       =& $this->nn;
+            $ALPHA_TO =& $this->alpha_to;
+            $INDEX_OF =& $this->index_of;
+            $GENPOLY  =& $this->genpoly;
+            $NROOTS   =& $this->nroots;
+            $FCR      =& $this->fcr;
+            $PRIM     =& $this->prim;
+            $IPRIM    =& $this->iprim;
+            $PAD      =& $this->pad;
+            $A0       =& $NN;
+
+            $parity = array_fill(0, $NROOTS, 0);
+
+            for($i=0; $i< ($NN-$NROOTS-$PAD); $i++) {
+                
+                $feedback = $INDEX_OF[$data[$i] ^ $parity[0]];
+                if($feedback != $A0) {      
+                    // feedback term is non-zero
+            
+                    // This line is unnecessary when GENPOLY[NROOTS] is unity, as it must
+                    // always be for the polynomials constructed by init_rs()
+                    $feedback = $this->modnn($NN - $GENPOLY[$NROOTS] + $feedback);
+            
+                    for($j=1;$j<$NROOTS;$j++) {
+                        $parity[$j] ^= $ALPHA_TO[$this->modnn($feedback + $GENPOLY[$NROOTS-$j])];
+                    }
+                }
+                
+                // Shift 
+                array_shift($parity);
+                if($feedback != $A0) {
+                    array_push($parity, $ALPHA_TO[$this->modnn($feedback + $GENPOLY[0])]);
+                } else {
+                    array_push($parity, 0);
+                }
+            }
+        }
+    }
+    
+    //##########################################################################
+    
+    class QRrs {
+    
+        public static $items = array();
+        
+        //----------------------------------------------------------------------
+        public static function init_rs($symsize, $gfpoly, $fcr, $prim, $nroots, $pad)
+        {
+            foreach(self::$items as $rs) {
+                if($rs->pad != $pad)       continue;
+                if($rs->nroots != $nroots) continue;
+                if($rs->mm != $symsize)    continue;
+                if($rs->gfpoly != $gfpoly) continue;
+                if($rs->fcr != $fcr)       continue;
+                if($rs->prim != $prim)     continue;
+
+                return $rs;
+            }
+
+            $rs = QRrsItem::init_rs_char($symsize, $gfpoly, $fcr, $prim, $nroots, $pad);
+            array_unshift(self::$items, $rs);
+
+            return $rs;
+        }
+    }
\ No newline at end of file
diff --git a/src-backup/includes/phpqrcode/qrspec.php b/src-backup/includes/phpqrcode/qrspec.php
new file mode 100644
index 0000000..92aea0c
--- /dev/null
+++ b/src-backup/includes/phpqrcode/qrspec.php
@@ -0,0 +1,592 @@
+<?php
+/*
+ * PHP QR Code encoder
+ *
+ * QR Code specifications
+ *
+ * Based on libqrencode C library distributed under LGPL 2.1
+ * Copyright (C) 2006, 2007, 2008, 2009 Kentaro Fukuchi <fukuchi@megaui.net>
+ *
+ * PHP QR Code is distributed under LGPL 3
+ * Copyright (C) 2010 Dominik Dzienia <deltalab at poczta dot fm>
+ *
+ * The following data / specifications are taken from
+ * "Two dimensional symbol -- QR-code -- Basic Specification" (JIS X0510:2004)
+ *  or
+ * "Automatic identification and data capture techniques -- 
+ *  QR Code 2005 bar code symbology specification" (ISO/IEC 18004:2006)
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 3 of the License, or any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+ 
+    define('QRSPEC_VERSION_MAX', 40);
+    define('QRSPEC_WIDTH_MAX',   177);
+
+    define('QRCAP_WIDTH',        0);
+    define('QRCAP_WORDS',        1);
+    define('QRCAP_REMINDER',     2);
+    define('QRCAP_EC',           3);
+
+    class QRspec {
+    
+        public static $capacity = array(
+            array(  0,    0, 0, array(   0,    0,    0,    0)),
+            array( 21,   26, 0, array(   7,   10,   13,   17)), // 1
+            array( 25,   44, 7, array(  10,   16,   22,   28)),
+            array( 29,   70, 7, array(  15,   26,   36,   44)),
+            array( 33,  100, 7, array(  20,   36,   52,   64)),
+            array( 37,  134, 7, array(  26,   48,   72,   88)), // 5
+            array( 41,  172, 7, array(  36,   64,   96,  112)),
+            array( 45,  196, 0, array(  40,   72,  108,  130)),
+            array( 49,  242, 0, array(  48,   88,  132,  156)),
+            array( 53,  292, 0, array(  60,  110,  160,  192)),
+            array( 57,  346, 0, array(  72,  130,  192,  224)), //10
+            array( 61,  404, 0, array(  80,  150,  224,  264)),
+            array( 65,  466, 0, array(  96,  176,  260,  308)),
+            array( 69,  532, 0, array( 104,  198,  288,  352)),
+            array( 73,  581, 3, array( 120,  216,  320,  384)),
+            array( 77,  655, 3, array( 132,  240,  360,  432)), //15
+            array( 81,  733, 3, array( 144,  280,  408,  480)),
+            array( 85,  815, 3, array( 168,  308,  448,  532)),
+            array( 89,  901, 3, array( 180,  338,  504,  588)),
+            array( 93,  991, 3, array( 196,  364,  546,  650)),
+            array( 97, 1085, 3, array( 224,  416,  600,  700)), //20
+            array(101, 1156, 4, array( 224,  442,  644,  750)),
+            array(105, 1258, 4, array( 252,  476,  690,  816)),
+            array(109, 1364, 4, array( 270,  504,  750,  900)),
+            array(113, 1474, 4, array( 300,  560,  810,  960)),
+            array(117, 1588, 4, array( 312,  588,  870, 1050)), //25
+            array(121, 1706, 4, array( 336,  644,  952, 1110)),
+            array(125, 1828, 4, array( 360,  700, 1020, 1200)),
+            array(129, 1921, 3, array( 390,  728, 1050, 1260)),
+            array(133, 2051, 3, array( 420,  784, 1140, 1350)),
+            array(137, 2185, 3, array( 450,  812, 1200, 1440)), //30
+            array(141, 2323, 3, array( 480,  868, 1290, 1530)),
+            array(145, 2465, 3, array( 510,  924, 1350, 1620)),
+            array(149, 2611, 3, array( 540,  980, 1440, 1710)),
+            array(153, 2761, 3, array( 570, 1036, 1530, 1800)),
+            array(157, 2876, 0, array( 570, 1064, 1590, 1890)), //35
+            array(161, 3034, 0, array( 600, 1120, 1680, 1980)),
+            array(165, 3196, 0, array( 630, 1204, 1770, 2100)),
+            array(169, 3362, 0, array( 660, 1260, 1860, 2220)),
+            array(173, 3532, 0, array( 720, 1316, 1950, 2310)),
+            array(177, 3706, 0, array( 750, 1372, 2040, 2430)) //40
+        );
+        
+        //----------------------------------------------------------------------
+        public static function getDataLength($version, $level)
+        {
+            return self::$capacity[$version][QRCAP_WORDS] - self::$capacity[$version][QRCAP_EC][$level];
+        }
+        
+        //----------------------------------------------------------------------
+        public static function getECCLength($version, $level)
+        {
+            return self::$capacity[$version][QRCAP_EC][$level];
+        }
+        
+        //----------------------------------------------------------------------
+        public static function getWidth($version)
+        {
+            return self::$capacity[$version][QRCAP_WIDTH];
+        }
+        
+        //----------------------------------------------------------------------
+        public static function getRemainder($version)
+        {
+            return self::$capacity[$version][QRCAP_REMINDER];
+        }
+        
+        //----------------------------------------------------------------------
+        public static function getMinimumVersion($size, $level)
+        {
+
+            for($i=1; $i<= QRSPEC_VERSION_MAX; $i++) {
+                $words  = self::$capacity[$i][QRCAP_WORDS] - self::$capacity[$i][QRCAP_EC][$level];
+                if($words >= $size) 
+                    return $i;
+            }
+
+            return -1;
+        }
+    
+        //######################################################################
+        
+        public static $lengthTableBits = array(
+            array(10, 12, 14),
+            array( 9, 11, 13),
+            array( 8, 16, 16),
+            array( 8, 10, 12)
+        );
+        
+        //----------------------------------------------------------------------
+        public static function lengthIndicator($mode, $version)
+        {
+            if ($mode == QR_MODE_STRUCTURE)
+                return 0;
+                
+            if ($version <= 9) {
+                $l = 0;
+            } else if ($version <= 26) {
+                $l = 1;
+            } else {
+                $l = 2;
+            }
+
+            return self::$lengthTableBits[$mode][$l];
+        }
+        
+        //----------------------------------------------------------------------
+        public static function maximumWords($mode, $version)
+        {
+            if($mode == QR_MODE_STRUCTURE) 
+                return 3;
+                
+            if($version <= 9) {
+                $l = 0;
+            } else if($version <= 26) {
+                $l = 1;
+            } else {
+                $l = 2;
+            }
+
+            $bits = self::$lengthTableBits[$mode][$l];
+            $words = (1 << $bits) - 1;
+            
+            if($mode == QR_MODE_KANJI) {
+                $words *= 2; // the number of bytes is required
+            }
+
+            return $words;
+        }
+
+        // Error correction code -----------------------------------------------
+        // Table of the error correction code (Reed-Solomon block)
+        // See Table 12-16 (pp.30-36), JIS X0510:2004.
+
+        public static $eccTable = array(
+            array(array( 0,  0), array( 0,  0), array( 0,  0), array( 0,  0)),
+            array(array( 1,  0), array( 1,  0), array( 1,  0), array( 1,  0)), // 1
+            array(array( 1,  0), array( 1,  0), array( 1,  0), array( 1,  0)),
+            array(array( 1,  0), array( 1,  0), array( 2,  0), array( 2,  0)),
+            array(array( 1,  0), array( 2,  0), array( 2,  0), array( 4,  0)),
+            array(array( 1,  0), array( 2,  0), array( 2,  2), array( 2,  2)), // 5
+            array(array( 2,  0), array( 4,  0), array( 4,  0), array( 4,  0)),
+            array(array( 2,  0), array( 4,  0), array( 2,  4), array( 4,  1)),
+            array(array( 2,  0), array( 2,  2), array( 4,  2), array( 4,  2)),
+            array(array( 2,  0), array( 3,  2), array( 4,  4), array( 4,  4)),
+            array(array( 2,  2), array( 4,  1), array( 6,  2), array( 6,  2)), //10
+            array(array( 4,  0), array( 1,  4), array( 4,  4), array( 3,  8)),
+            array(array( 2,  2), array( 6,  2), array( 4,  6), array( 7,  4)),
+            array(array( 4,  0), array( 8,  1), array( 8,  4), array(12,  4)),
+            array(array( 3,  1), array( 4,  5), array(11,  5), array(11,  5)),
+            array(array( 5,  1), array( 5,  5), array( 5,  7), array(11,  7)), //15
+            array(array( 5,  1), array( 7,  3), array(15,  2), array( 3, 13)),
+            array(array( 1,  5), array(10,  1), array( 1, 15), array( 2, 17)),
+            array(array( 5,  1), array( 9,  4), array(17,  1), array( 2, 19)),
+            array(array( 3,  4), array( 3, 11), array(17,  4), array( 9, 16)),
+            array(array( 3,  5), array( 3, 13), array(15,  5), array(15, 10)), //20
+            array(array( 4,  4), array(17,  0), array(17,  6), array(19,  6)),
+            array(array( 2,  7), array(17,  0), array( 7, 16), array(34,  0)),
+            array(array( 4,  5), array( 4, 14), array(11, 14), array(16, 14)),
+            array(array( 6,  4), array( 6, 14), array(11, 16), array(30,  2)),
+            array(array( 8,  4), array( 8, 13), array( 7, 22), array(22, 13)), //25
+            array(array(10,  2), array(19,  4), array(28,  6), array(33,  4)),
+            array(array( 8,  4), array(22,  3), array( 8, 26), array(12, 28)),
+            array(array( 3, 10), array( 3, 23), array( 4, 31), array(11, 31)),
+            array(array( 7,  7), array(21,  7), array( 1, 37), array(19, 26)),
+            array(array( 5, 10), array(19, 10), array(15, 25), array(23, 25)), //30
+            array(array(13,  3), array( 2, 29), array(42,  1), array(23, 28)),
+            array(array(17,  0), array(10, 23), array(10, 35), array(19, 35)),
+            array(array(17,  1), array(14, 21), array(29, 19), array(11, 46)),
+            array(array(13,  6), array(14, 23), array(44,  7), array(59,  1)),
+            array(array(12,  7), array(12, 26), array(39, 14), array(22, 41)), //35
+            array(array( 6, 14), array( 6, 34), array(46, 10), array( 2, 64)),
+            array(array(17,  4), array(29, 14), array(49, 10), array(24, 46)),
+            array(array( 4, 18), array(13, 32), array(48, 14), array(42, 32)),
+            array(array(20,  4), array(40,  7), array(43, 22), array(10, 67)),
+            array(array(19,  6), array(18, 31), array(34, 34), array(20, 61)),//40
+        );                                                                       
+
+        //----------------------------------------------------------------------
+        // CACHEABLE!!!
+        
+        public static function getEccSpec($version, $level, array &$spec)
+        {
+            if (count($spec) < 5) {
+                $spec = array(0,0,0,0,0);
+            }
+
+            $b1   = self::$eccTable[$version][$level][0];
+            $b2   = self::$eccTable[$version][$level][1];
+            $data = self::getDataLength($version, $level);
+            $ecc  = self::getECCLength($version, $level);
+
+            if($b2 == 0) {
+                $spec[0] = $b1;
+                $spec[1] = (int)($data / $b1);
+                $spec[2] = (int)($ecc / $b1);
+                $spec[3] = 0; 
+                $spec[4] = 0;
+            } else {
+                $spec[0] = $b1;
+                $spec[1] = (int)($data / ($b1 + $b2));
+                $spec[2] = (int)($ecc  / ($b1 + $b2));
+                $spec[3] = $b2;
+                $spec[4] = $spec[1] + 1;
+            }
+        }
+
+        // Alignment pattern ---------------------------------------------------
+
+        // Positions of alignment patterns.
+        // This array includes only the second and the third position of the 
+        // alignment patterns. Rest of them can be calculated from the distance 
+        // between them.
+         
+        // See Table 1 in Appendix E (pp.71) of JIS X0510:2004.
+         
+        public static $alignmentPattern = array(      
+            array( 0,  0),
+            array( 0,  0), array(18,  0), array(22,  0), array(26,  0), array(30,  0), // 1- 5
+            array(34,  0), array(22, 38), array(24, 42), array(26, 46), array(28, 50), // 6-10
+            array(30, 54), array(32, 58), array(34, 62), array(26, 46), array(26, 48), //11-15
+            array(26, 50), array(30, 54), array(30, 56), array(30, 58), array(34, 62), //16-20
+            array(28, 50), array(26, 50), array(30, 54), array(28, 54), array(32, 58), //21-25
+            array(30, 58), array(34, 62), array(26, 50), array(30, 54), array(26, 52), //26-30
+            array(30, 56), array(34, 60), array(30, 58), array(34, 62), array(30, 54), //31-35
+            array(24, 50), array(28, 54), array(32, 58), array(26, 54), array(30, 58), //35-40
+        );                                                                                  
+
+        
+        /** --------------------------------------------------------------------
+         * Put an alignment marker.
+         * @param frame
+         * @param width
+         * @param ox,oy center coordinate of the pattern
+         */
+        public static function putAlignmentMarker(array &$frame, $ox, $oy)
+        {
+            $finder = array(
+                "\xa1\xa1\xa1\xa1\xa1",
+                "\xa1\xa0\xa0\xa0\xa1",
+                "\xa1\xa0\xa1\xa0\xa1",
+                "\xa1\xa0\xa0\xa0\xa1",
+                "\xa1\xa1\xa1\xa1\xa1"
+            );                        
+            
+            $yStart = $oy-2;         
+            $xStart = $ox-2;
+            
+            for($y=0; $y<5; $y++) {
+                QRstr::set($frame, $xStart, $yStart+$y, $finder[$y]);
+            }
+        }
+
+        //----------------------------------------------------------------------
+        public static function putAlignmentPattern($version, &$frame, $width)
+        {
+            if($version < 2)
+                return;
+
+            $d = self::$alignmentPattern[$version][1] - self::$alignmentPattern[$version][0];
+            if($d < 0) {
+                $w = 2;
+            } else {
+                $w = (int)(($width - self::$alignmentPattern[$version][0]) / $d + 2);
+            }
+
+            if($w * $w - 3 == 1) {
+                $x = self::$alignmentPattern[$version][0];
+                $y = self::$alignmentPattern[$version][0];
+                self::putAlignmentMarker($frame, $x, $y);
+                return;
+            }
+
+            $cx = self::$alignmentPattern[$version][0];
+            for($x=1; $x<$w - 1; $x++) {
+                self::putAlignmentMarker($frame, 6, $cx);
+                self::putAlignmentMarker($frame, $cx,  6);
+                $cx += $d;
+            }
+
+            $cy = self::$alignmentPattern[$version][0];
+            for($y=0; $y<$w-1; $y++) {
+                $cx = self::$alignmentPattern[$version][0];
+                for($x=0; $x<$w-1; $x++) {
+                    self::putAlignmentMarker($frame, $cx, $cy);
+                    $cx += $d;
+                }
+                $cy += $d;
+            }
+        }
+
+        // Version information pattern -----------------------------------------
+
+		// Version information pattern (BCH coded).
+        // See Table 1 in Appendix D (pp.68) of JIS X0510:2004.
+        
+		// size: [QRSPEC_VERSION_MAX - 6]
+		
+        public static $versionPattern = array(
+            0x07c94, 0x085bc, 0x09a99, 0x0a4d3, 0x0bbf6, 0x0c762, 0x0d847, 0x0e60d,
+            0x0f928, 0x10b78, 0x1145d, 0x12a17, 0x13532, 0x149a6, 0x15683, 0x168c9,
+            0x177ec, 0x18ec4, 0x191e1, 0x1afab, 0x1b08e, 0x1cc1a, 0x1d33f, 0x1ed75,
+            0x1f250, 0x209d5, 0x216f0, 0x228ba, 0x2379f, 0x24b0b, 0x2542e, 0x26a64,
+            0x27541, 0x28c69
+        );
+
+        //----------------------------------------------------------------------
+        public static function getVersionPattern($version)
+        {
+            if($version < 7 || $version > QRSPEC_VERSION_MAX)
+                return 0;
+
+            return self::$versionPattern[$version -7];
+        }
+
+        // Format information --------------------------------------------------
+        // See calcFormatInfo in tests/test_qrspec.c (orginal qrencode c lib)
+        
+        public static $formatInfo = array(
+            array(0x77c4, 0x72f3, 0x7daa, 0x789d, 0x662f, 0x6318, 0x6c41, 0x6976),
+            array(0x5412, 0x5125, 0x5e7c, 0x5b4b, 0x45f9, 0x40ce, 0x4f97, 0x4aa0),
+            array(0x355f, 0x3068, 0x3f31, 0x3a06, 0x24b4, 0x2183, 0x2eda, 0x2bed),
+            array(0x1689, 0x13be, 0x1ce7, 0x19d0, 0x0762, 0x0255, 0x0d0c, 0x083b)
+        );
+
+        public static function getFormatInfo($mask, $level)
+        {
+            if($mask < 0 || $mask > 7)
+                return 0;
+                
+            if($level < 0 || $level > 3)
+                return 0;                
+
+            return self::$formatInfo[$level][$mask];
+        }
+
+        // Frame ---------------------------------------------------------------
+        // Cache of initial frames.
+         
+        public static $frames = array();
+
+        /** --------------------------------------------------------------------
+         * Put a finder pattern.
+         * @param frame
+         * @param width
+         * @param ox,oy upper-left coordinate of the pattern
+         */
+        public static function putFinderPattern(&$frame, $ox, $oy)
+        {
+            $finder = array(
+                "\xc1\xc1\xc1\xc1\xc1\xc1\xc1",
+                "\xc1\xc0\xc0\xc0\xc0\xc0\xc1",
+                "\xc1\xc0\xc1\xc1\xc1\xc0\xc1",
+                "\xc1\xc0\xc1\xc1\xc1\xc0\xc1",
+                "\xc1\xc0\xc1\xc1\xc1\xc0\xc1",
+                "\xc1\xc0\xc0\xc0\xc0\xc0\xc1",
+                "\xc1\xc1\xc1\xc1\xc1\xc1\xc1"
+            );                            
+            
+            for($y=0; $y<7; $y++) {
+                QRstr::set($frame, $ox, $oy+$y, $finder[$y]);
+            }
+        }
+
+        //----------------------------------------------------------------------
+        public static function createFrame($version)
+        {
+            $width = self::$capacity[$version][QRCAP_WIDTH];
+            $frameLine = str_repeat ("\0", $width);
+            $frame = array_fill(0, $width, $frameLine);
+
+            // Finder pattern
+            self::putFinderPattern($frame, 0, 0);
+            self::putFinderPattern($frame, $width - 7, 0);
+            self::putFinderPattern($frame, 0, $width - 7);
+            
+            // Separator
+            $yOffset = $width - 7;
+            
+            for($y=0; $y<7; $y++) {
+                $frame[$y][7] = "\xc0";
+                $frame[$y][$width - 8] = "\xc0";
+                $frame[$yOffset][7] = "\xc0";
+                $yOffset++;
+            }
+            
+            $setPattern = str_repeat("\xc0", 8);
+            
+            QRstr::set($frame, 0, 7, $setPattern);
+            QRstr::set($frame, $width-8, 7, $setPattern);
+            QRstr::set($frame, 0, $width - 8, $setPattern);
+        
+            // Format info
+            $setPattern = str_repeat("\x84", 9);
+            QRstr::set($frame, 0, 8, $setPattern);
+            QRstr::set($frame, $width - 8, 8, $setPattern, 8);
+            
+            $yOffset = $width - 8;
+
+            for($y=0; $y<8; $y++,$yOffset++) {
+                $frame[$y][8] = "\x84";
+                $frame[$yOffset][8] = "\x84";
+            }
+
+            // Timing pattern  
+            
+            for($i=1; $i<$width-15; $i++) {
+                $frame[6][7+$i] = chr(0x90 | ($i & 1));
+                $frame[7+$i][6] = chr(0x90 | ($i & 1));
+            }
+            
+            // Alignment pattern  
+            self::putAlignmentPattern($version, $frame, $width);
+            
+            // Version information 
+            if($version >= 7) {
+                $vinf = self::getVersionPattern($version);
+
+                $v = $vinf;
+                
+                for($x=0; $x<6; $x++) {
+                    for($y=0; $y<3; $y++) {
+                        $frame[($width - 11)+$y][$x] = chr(0x88 | ($v & 1));
+                        $v = $v >> 1;
+                    }
+                }
+
+                $v = $vinf;
+                for($y=0; $y<6; $y++) {
+                    for($x=0; $x<3; $x++) {
+                        $frame[$y][$x+($width - 11)] = chr(0x88 | ($v & 1));
+                        $v = $v >> 1;
+                    }
+                }
+            }
+    
+            // and a little bit...  
+            $frame[$width - 8][8] = "\x81";
+            
+            return $frame;
+        }
+
+        //----------------------------------------------------------------------
+        public static function debug($frame, $binary_mode = false)
+        {
+            if ($binary_mode) {
+            
+                    foreach ($frame as &$frameLine) {
+                        $frameLine = join('<span class="m">&nbsp;&nbsp;</span>', explode('0', $frameLine));
+                        $frameLine = join('&#9608;&#9608;', explode('1', $frameLine));
+                    }
+                    
+                    ?>
+                <style>
+                    .m { background-color: white; }
+                </style>
+                <?php
+                    echo '<pre><tt><br/ ><br/ ><br/ >&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;';
+                    echo join("<br/ >&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;", $frame);
+                    echo '</tt></pre><br/ ><br/ ><br/ ><br/ ><br/ ><br/ >';
+            
+            } else {
+            
+                foreach ($frame as &$frameLine) {
+                    $frameLine = join('<span class="m">&nbsp;</span>',  explode("\xc0", $frameLine));
+                    $frameLine = join('<span class="m">&#9618;</span>', explode("\xc1", $frameLine));
+                    $frameLine = join('<span class="p">&nbsp;</span>',  explode("\xa0", $frameLine));
+                    $frameLine = join('<span class="p">&#9618;</span>', explode("\xa1", $frameLine));
+                    $frameLine = join('<span class="s">&#9671;</span>', explode("\x84", $frameLine)); //format 0
+                    $frameLine = join('<span class="s">&#9670;</span>', explode("\x85", $frameLine)); //format 1
+                    $frameLine = join('<span class="x">&#9762;</span>', explode("\x81", $frameLine)); //special bit
+                    $frameLine = join('<span class="c">&nbsp;</span>',  explode("\x90", $frameLine)); //clock 0
+                    $frameLine = join('<span class="c">&#9719;</span>', explode("\x91", $frameLine)); //clock 1
+                    $frameLine = join('<span class="f">&nbsp;</span>',  explode("\x88", $frameLine)); //version
+                    $frameLine = join('<span class="f">&#9618;</span>', explode("\x89", $frameLine)); //version
+                    $frameLine = join('&#9830;', explode("\x01", $frameLine));
+                    $frameLine = join('&#8901;', explode("\0", $frameLine));
+                }
+                
+                ?>
+                <style>
+                    .p { background-color: yellow; }
+                    .m { background-color: #00FF00; }
+                    .s { background-color: #FF0000; }
+                    .c { background-color: aqua; }
+                    .x { background-color: pink; }
+                    .f { background-color: gold; }
+                </style>
+                <?php
+                echo "<pre><tt>";
+                echo join("<br/ >", $frame);
+                echo "</tt></pre>";
+            
+            }
+        }
+
+        //----------------------------------------------------------------------
+        public static function serial($frame)
+        {
+            return gzcompress(join("\n", $frame), 9);
+        }
+        
+        //----------------------------------------------------------------------
+        public static function unserial($code)
+        {
+            return explode("\n", gzuncompress($code));
+        }
+        
+        //----------------------------------------------------------------------
+        public static function newFrame($version)
+        {
+            if($version < 1 || $version > QRSPEC_VERSION_MAX) 
+                return null;
+
+            if(!isset(self::$frames[$version])) {
+                
+                $fileName = QR_CACHE_DIR.'frame_'.$version.'.dat';
+                
+                if (QR_CACHEABLE) {
+                    if (file_exists($fileName)) {
+                        self::$frames[$version] = self::unserial(file_get_contents($fileName));
+                    } else {
+                        self::$frames[$version] = self::createFrame($version);
+                        file_put_contents($fileName, self::serial(self::$frames[$version]));
+                    }
+                } else {
+                    self::$frames[$version] = self::createFrame($version);
+                }
+            }
+            
+            if(is_null(self::$frames[$version]))
+                return null;
+
+            return self::$frames[$version];
+        }
+
+        //----------------------------------------------------------------------
+        public static function rsBlockNum($spec)     { return $spec[0] + $spec[3]; }
+        public static function rsBlockNum1($spec)    { return $spec[0]; }
+        public static function rsDataCodes1($spec)   { return $spec[1]; }
+        public static function rsEccCodes1($spec)    { return $spec[2]; }
+        public static function rsBlockNum2($spec)    { return $spec[3]; }
+        public static function rsDataCodes2($spec)   { return $spec[4]; }
+        public static function rsEccCodes2($spec)    { return $spec[2]; }
+        public static function rsDataLength($spec)   { return ($spec[0] * $spec[1]) + ($spec[3] * $spec[4]);    }
+        public static function rsEccLength($spec)    { return ($spec[0] + $spec[3]) * $spec[2]; }
+        
+    }
\ No newline at end of file
diff --git a/src-backup/includes/phpqrcode/qrsplit.php b/src-backup/includes/phpqrcode/qrsplit.php
new file mode 100644
index 0000000..d75b827
--- /dev/null
+++ b/src-backup/includes/phpqrcode/qrsplit.php
@@ -0,0 +1,311 @@
+<?php
+/*
+ * PHP QR Code encoder
+ *
+ * Input splitting classes
+ *
+ * Based on libqrencode C library distributed under LGPL 2.1
+ * Copyright (C) 2006, 2007, 2008, 2009 Kentaro Fukuchi <fukuchi@megaui.net>
+ *
+ * PHP QR Code is distributed under LGPL 3
+ * Copyright (C) 2010 Dominik Dzienia <deltalab at poczta dot fm>
+ *
+ * The following data / specifications are taken from
+ * "Two dimensional symbol -- QR-code -- Basic Specification" (JIS X0510:2004)
+ *  or
+ * "Automatic identification and data capture techniques -- 
+ *  QR Code 2005 bar code symbology specification" (ISO/IEC 18004:2006)
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 3 of the License, or any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+    class QRsplit {
+
+        public $dataStr = '';
+        public $input;
+        public $modeHint;
+
+        //----------------------------------------------------------------------
+        public function __construct($dataStr, $input, $modeHint) 
+        {
+            $this->dataStr  = $dataStr;
+            $this->input    = $input;
+            $this->modeHint = $modeHint;
+        }
+        
+        //----------------------------------------------------------------------
+        public static function isdigitat($str, $pos)
+        {    
+            if ($pos >= strlen($str))
+                return false;
+            
+            return ((ord($str[$pos]) >= ord('0'))&&(ord($str[$pos]) <= ord('9')));
+        }
+        
+        //----------------------------------------------------------------------
+        public static function isalnumat($str, $pos)
+        {
+            if ($pos >= strlen($str))
+                return false;
+                
+            return (QRinput::lookAnTable(ord($str[$pos])) >= 0);
+        }
+
+        //----------------------------------------------------------------------
+        public function identifyMode($pos)
+        {
+            if ($pos >= strlen($this->dataStr)) 
+                return QR_MODE_NUL;
+                
+            $c = $this->dataStr[$pos];
+            
+            if(self::isdigitat($this->dataStr, $pos)) {
+                return QR_MODE_NUM;
+            } else if(self::isalnumat($this->dataStr, $pos)) {
+                return QR_MODE_AN;
+            } else if($this->modeHint == QR_MODE_KANJI) {
+            
+                if ($pos+1 < strlen($this->dataStr)) 
+                {
+                    $d = $this->dataStr[$pos+1];
+                    $word = (ord($c) << 8) | ord($d);
+                    if(($word >= 0x8140 && $word <= 0x9ffc) || ($word >= 0xe040 && $word <= 0xebbf)) {
+                        return QR_MODE_KANJI;
+                    }
+                }
+            }
+
+            return QR_MODE_8;
+        } 
+        
+        //----------------------------------------------------------------------
+        public function eatNum()
+        {
+            $ln = QRspec::lengthIndicator(QR_MODE_NUM, $this->input->getVersion());
+
+            $p = 0;
+            while(self::isdigitat($this->dataStr, $p)) {
+                $p++;
+            }
+            
+            $run = $p;
+            $mode = $this->identifyMode($p);
+            
+            if($mode == QR_MODE_8) {
+                $dif = QRinput::estimateBitsModeNum($run) + 4 + $ln
+                     + QRinput::estimateBitsMode8(1)         // + 4 + l8
+                     - QRinput::estimateBitsMode8($run + 1); // - 4 - l8
+                if($dif > 0) {
+                    return $this->eat8();
+                }
+            }
+            if($mode == QR_MODE_AN) {
+                $dif = QRinput::estimateBitsModeNum($run) + 4 + $ln
+                     + QRinput::estimateBitsModeAn(1)        // + 4 + la
+                     - QRinput::estimateBitsModeAn($run + 1);// - 4 - la
+                if($dif > 0) {
+                    return $this->eatAn();
+                }
+            }
+            
+            $ret = $this->input->append(QR_MODE_NUM, $run, str_split($this->dataStr));
+            if($ret < 0)
+                return -1;
+
+            return $run;
+        }
+        
+        //----------------------------------------------------------------------
+        public function eatAn()
+        {
+            $la = QRspec::lengthIndicator(QR_MODE_AN,  $this->input->getVersion());
+            $ln = QRspec::lengthIndicator(QR_MODE_NUM, $this->input->getVersion());
+
+            $p = 0;
+            
+            while(self::isalnumat($this->dataStr, $p)) {
+                if(self::isdigitat($this->dataStr, $p)) {
+                    $q = $p;
+                    while(self::isdigitat($this->dataStr, $q)) {
+                        $q++;
+                    }
+                    
+                    $dif = QRinput::estimateBitsModeAn($p) // + 4 + la
+                         + QRinput::estimateBitsModeNum($q - $p) + 4 + $ln
+                         - QRinput::estimateBitsModeAn($q); // - 4 - la
+                         
+                    if($dif < 0) {
+                        break;
+                    } else {
+                        $p = $q;
+                    }
+                } else {
+                    $p++;
+                }
+            }
+
+            $run = $p;
+
+            if(!self::isalnumat($this->dataStr, $p)) {
+                $dif = QRinput::estimateBitsModeAn($run) + 4 + $la
+                     + QRinput::estimateBitsMode8(1) // + 4 + l8
+                      - QRinput::estimateBitsMode8($run + 1); // - 4 - l8
+                if($dif > 0) {
+                    return $this->eat8();
+                }
+            }
+
+            $ret = $this->input->append(QR_MODE_AN, $run, str_split($this->dataStr));
+            if($ret < 0)
+                return -1;
+
+            return $run;
+        }
+        
+        //----------------------------------------------------------------------
+        public function eatKanji()
+        {
+            $p = 0;
+            
+            while($this->identifyMode($p) == QR_MODE_KANJI) {
+                $p += 2;
+            }
+            
+            $ret = $this->input->append(QR_MODE_KANJI, $p, str_split($this->dataStr));
+            if($ret < 0)
+                return -1;
+
+            return $run;
+        }
+
+        //----------------------------------------------------------------------
+        public function eat8()
+        {
+            $la = QRspec::lengthIndicator(QR_MODE_AN, $this->input->getVersion());
+            $ln = QRspec::lengthIndicator(QR_MODE_NUM, $this->input->getVersion());
+
+            $p = 1;
+            $dataStrLen = strlen($this->dataStr);
+            
+            while($p < $dataStrLen) {
+                
+                $mode = $this->identifyMode($p);
+                if($mode == QR_MODE_KANJI) {
+                    break;
+                }
+                if($mode == QR_MODE_NUM) {
+                    $q = $p;
+                    while(self::isdigitat($this->dataStr, $q)) {
+                        $q++;
+                    }
+                    $dif = QRinput::estimateBitsMode8($p) // + 4 + l8
+                         + QRinput::estimateBitsModeNum($q - $p) + 4 + $ln
+                         - QRinput::estimateBitsMode8($q); // - 4 - l8
+                    if($dif < 0) {
+                        break;
+                    } else {
+                        $p = $q;
+                    }
+                } else if($mode == QR_MODE_AN) {
+                    $q = $p;
+                    while(self::isalnumat($this->dataStr, $q)) {
+                        $q++;
+                    }
+                    $dif = QRinput::estimateBitsMode8($p)  // + 4 + l8
+                         + QRinput::estimateBitsModeAn($q - $p) + 4 + $la
+                         - QRinput::estimateBitsMode8($q); // - 4 - l8
+                    if($dif < 0) {
+                        break;
+                    } else {
+                        $p = $q;
+                    }
+                } else {
+                    $p++;
+                }
+            }
+
+            $run = $p;
+            $ret = $this->input->append(QR_MODE_8, $run, str_split($this->dataStr));
+            
+            if($ret < 0)
+                return -1;
+
+            return $run;
+        }
+
+        //----------------------------------------------------------------------
+        public function splitString()
+        {
+            while (strlen($this->dataStr) > 0)
+            {
+                if($this->dataStr == '')
+                    return 0;
+
+                $mode = $this->identifyMode(0);
+                
+                switch ($mode) {
+                    case QR_MODE_NUM: $length = $this->eatNum(); break;
+                    case QR_MODE_AN:  $length = $this->eatAn(); break;
+                    case QR_MODE_KANJI:
+                        if ($hint == QR_MODE_KANJI)
+                                $length = $this->eatKanji();
+                        else    $length = $this->eat8();
+                        break;
+                    default: $length = $this->eat8(); break;
+                
+                }
+
+                if($length == 0) return 0;
+                if($length < 0)  return -1;
+                
+                $this->dataStr = substr($this->dataStr, $length);
+            }
+        }
+
+        //----------------------------------------------------------------------
+        public function toUpper()
+        {
+            $stringLen = strlen($this->dataStr);
+            $p = 0;
+            
+            while ($p<$stringLen) {
+                $mode = self::identifyMode(substr($this->dataStr, $p), $this->modeHint);
+                if($mode == QR_MODE_KANJI) {
+                    $p += 2;
+                } else {
+                    if (ord($this->dataStr[$p]) >= ord('a') && ord($this->dataStr[$p]) <= ord('z')) {
+                        $this->dataStr[$p] = chr(ord($this->dataStr[$p]) - 32);
+                    }
+                    $p++;
+                }
+            }
+
+            return $this->dataStr;
+        }
+
+        //----------------------------------------------------------------------
+        public static function splitStringToQRinput($string, QRinput $input, $modeHint, $casesensitive = true)
+        {
+            if(is_null($string) || $string == '\0' || $string == '') {
+                throw new Exception('empty string!!!');
+            }
+
+            $split = new QRsplit($string, $input, $modeHint);
+            
+            if(!$casesensitive)
+                $split->toUpper();
+                
+            return $split->splitString();
+        }
+    }
\ No newline at end of file
diff --git a/src-backup/includes/phpqrcode/qrtools.php b/src-backup/includes/phpqrcode/qrtools.php
new file mode 100644
index 0000000..3012db4
--- /dev/null
+++ b/src-backup/includes/phpqrcode/qrtools.php
@@ -0,0 +1,172 @@
+<?php
+/*
+ * PHP QR Code encoder
+ *
+ * Toolset, handy and debug utilites.
+ *
+ * PHP QR Code is distributed under LGPL 3
+ * Copyright (C) 2010 Dominik Dzienia <deltalab at poczta dot fm>
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 3 of the License, or any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+    class QRtools {
+    
+        //----------------------------------------------------------------------
+        public static function binarize($frame)
+        {
+            $len = count($frame);
+            foreach ($frame as &$frameLine) {
+                
+                for($i=0; $i<$len; $i++) {
+                    $frameLine[$i] = (ord($frameLine[$i])&1)?'1':'0';
+                }
+            }
+            
+            return $frame;
+        }
+        
+        //----------------------------------------------------------------------
+        public static function tcpdfBarcodeArray($code, $mode = 'QR,L', $tcPdfVersion = '4.5.037')
+        {
+            $barcode_array = array();
+            
+            if (!is_array($mode))
+                $mode = explode(',', $mode);
+                
+            $eccLevel = 'L';
+                
+            if (count($mode) > 1) {
+                $eccLevel = $mode[1];
+            }
+                
+            $qrTab = QRcode::text($code, false, $eccLevel);
+            $size = count($qrTab);
+                
+            $barcode_array['num_rows'] = $size;
+            $barcode_array['num_cols'] = $size;
+            $barcode_array['bcode'] = array();
+                
+            foreach ($qrTab as $line) {
+                $arrAdd = array();
+                foreach(str_split($line) as $char)
+                    $arrAdd[] = ($char=='1')?1:0;
+                $barcode_array['bcode'][] = $arrAdd;
+            }
+                    
+            return $barcode_array;
+        }
+        
+        //----------------------------------------------------------------------
+        public static function clearCache()
+        {
+            self::$frames = array();
+        }
+        
+        //----------------------------------------------------------------------
+        public static function buildCache()
+        {
+			QRtools::markTime('before_build_cache');
+			
+			$mask = new QRmask();
+            for ($a=1; $a <= QRSPEC_VERSION_MAX; $a++) {
+                $frame = QRspec::newFrame($a);
+                if (QR_IMAGE) {
+                    $fileName = QR_CACHE_DIR.'frame_'.$a.'.png';
+                    QRimage::png(self::binarize($frame), $fileName, 1, 0);
+                }
+				
+				$width = count($frame);
+				$bitMask = array_fill(0, $width, array_fill(0, $width, 0));
+				for ($maskNo=0; $maskNo<8; $maskNo++)
+					$mask->makeMaskNo($maskNo, $width, $frame, $bitMask, true);
+            }
+			
+			QRtools::markTime('after_build_cache');
+        }
+
+        //----------------------------------------------------------------------
+        public static function log($outfile, $err)
+        {
+            if (QR_LOG_DIR !== false) {
+                if ($err != '') {
+                    if ($outfile !== false) {
+                        file_put_contents(QR_LOG_DIR.basename($outfile).'-errors.txt', date('Y-m-d H:i:s').': '.$err, FILE_APPEND);
+                    } else {
+                        file_put_contents(QR_LOG_DIR.'errors.txt', date('Y-m-d H:i:s').': '.$err, FILE_APPEND);
+                    }
+                }    
+            }
+        }
+        
+        //----------------------------------------------------------------------
+        public static function dumpMask($frame) 
+        {
+            $width = count($frame);
+            for($y=0;$y<$width;$y++) {
+                for($x=0;$x<$width;$x++) {
+                    echo ord($frame[$y][$x]).',';
+                }
+            }
+        }
+        
+        //----------------------------------------------------------------------
+        public static function markTime($markerId)
+        {
+            list($usec, $sec) = explode(" ", microtime());
+            $time = ((float)$usec + (float)$sec);
+            
+            if (!isset($GLOBALS['qr_time_bench']))
+                $GLOBALS['qr_time_bench'] = array();
+            
+            $GLOBALS['qr_time_bench'][$markerId] = $time;
+        }
+        
+        //----------------------------------------------------------------------
+        public static function timeBenchmark()
+        {
+            self::markTime('finish');
+        
+            $lastTime = 0;
+            $startTime = 0;
+            $p = 0;
+
+            echo '<table cellpadding="3" cellspacing="1">
+                    <thead><tr style="border-bottom:1px solid silver"><td colspan="2" style="text-align:center">BENCHMARK</td></tr></thead>
+                    <tbody>';
+
+            foreach($GLOBALS['qr_time_bench'] as $markerId=>$thisTime) {
+                if ($p > 0) {
+                    echo '<tr><th style="text-align:right">till '.$markerId.': </th><td>'.number_format($thisTime-$lastTime, 6).'s</td></tr>';
+                } else {
+                    $startTime = $thisTime;
+                }
+                
+                $p++;
+                $lastTime = $thisTime;
+            }
+            
+            echo '</tbody><tfoot>
+                <tr style="border-top:2px solid black"><th style="text-align:right">TOTAL: </th><td>'.number_format($lastTime-$startTime, 6).'s</td></tr>
+            </tfoot>
+            </table>';
+        }
+        
+    }
+    
+    //##########################################################################
+    
+    QRtools::markTime('start');
+    
\ No newline at end of file
diff --git a/src-backup/includes/phpqrcode/tools/merge.bat b/src-backup/includes/phpqrcode/tools/merge.bat
new file mode 100755
index 0000000..b60a485
--- /dev/null
+++ b/src-backup/includes/phpqrcode/tools/merge.bat
@@ -0,0 +1,2 @@
+php ./merge.php
+pause
\ No newline at end of file
diff --git a/src-backup/includes/phpqrcode/tools/merge.php b/src-backup/includes/phpqrcode/tools/merge.php
new file mode 100644
index 0000000..19d338b
--- /dev/null
+++ b/src-backup/includes/phpqrcode/tools/merge.php
@@ -0,0 +1,70 @@
+<?php
+
+/*
+ * PHP QR Code encoder
+ *
+ * Tool for merging all library files into one, simpler to incorporate.
+ * 
+ * MAKE SURE THAT RESULTING PHPQRCode.php (and its dir) ARE WRITABLE!
+ *
+ * PHP QR Code is distributed under LGPL 3
+ * Copyright (C) 2010 Dominik Dzienia <deltalab at poczta dot fm>
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 3 of the License, or any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+ 
+    $QR_BASEDIR = dirname(__FILE__).DIRECTORY_SEPARATOR.'..'.DIRECTORY_SEPARATOR;
+    $QR_TOOLSDIR = dirname(__FILE__).DIRECTORY_SEPARATOR;
+    
+    $outputFile = $QR_BASEDIR.'phpqrcode.php';
+    
+    // Required libs
+    
+    $fileList = array(
+        $QR_BASEDIR.'qrconst.php',
+        $QR_TOOLSDIR.'merged_config.php',
+        $QR_BASEDIR.'qrtools.php',
+        $QR_BASEDIR.'qrspec.php',
+        $QR_BASEDIR.'qrimage.php',
+        $QR_BASEDIR.'qrinput.php',
+        $QR_BASEDIR.'qrbitstream.php',
+        $QR_BASEDIR.'qrsplit.php',
+        $QR_BASEDIR.'qrrscode.php',
+        $QR_BASEDIR.'qrmask.php',
+        $QR_BASEDIR.'qrencode.php'
+    );
+    
+    $headerFile = $QR_TOOLSDIR.'merged_header.php';
+    $versionFile = $QR_BASEDIR.'VERSION';
+    
+    $outputCode = '';
+    
+    foreach($fileList as $fileName) {
+        $outputCode .= "\n\n".'//---- '.basename($fileName).' -----------------------------'."\n\n";
+        $anotherCode = file_get_contents($fileName);
+        $anotherCode = preg_replace ('/^<\?php/', '', $anotherCode);
+        $anotherCode = preg_replace ('/\?>\*$/', '', $anotherCode);
+        $outputCode .= "\n\n".$anotherCode."\n\n";
+    }
+    
+	$versionDataEx = explode("\n", file_get_contents($versionFile));
+	
+    $outputContents = file_get_contents($headerFile);
+    $outputContents .= "\n\n/*\n * Version: ".trim($versionDataEx[0])."\n * Build: ".trim($versionDataEx[1])."\n */\n\n";
+    $outputContents .= $outputCode;
+    
+    file_put_contents($outputFile, $outputContents);
+    
+    
\ No newline at end of file
diff --git a/src-backup/includes/phpqrcode/tools/merge.sh b/src-backup/includes/phpqrcode/tools/merge.sh
new file mode 100644
index 0000000..e4c2fbc
--- /dev/null
+++ b/src-backup/includes/phpqrcode/tools/merge.sh
@@ -0,0 +1,2 @@
+#!/bin/sh
+php ./merge.php
\ No newline at end of file
diff --git a/src-backup/includes/phpqrcode/tools/merged_config.php b/src-backup/includes/phpqrcode/tools/merged_config.php
new file mode 100644
index 0000000..55ddb45
--- /dev/null
+++ b/src-backup/includes/phpqrcode/tools/merged_config.php
@@ -0,0 +1,17 @@
+<?php
+/*
+ * PHP QR Code encoder
+ *
+ * Config file, tuned-up for merged verion
+ */
+     
+    define('QR_CACHEABLE', false);       // use cache - more disk reads but less CPU power, masks and format templates are stored there
+    define('QR_CACHE_DIR', false);       // used when QR_CACHEABLE === true
+    define('QR_LOG_DIR', false);         // default error logs dir   
+    
+    define('QR_FIND_BEST_MASK', true);                                                          // if true, estimates best mask (spec. default, but extremally slow; set to false to significant performance boost but (propably) worst quality code
+    define('QR_FIND_FROM_RANDOM', 2);                                                       // if false, checks all masks available, otherwise value tells count of masks need to be checked, mask id are got randomly
+    define('QR_DEFAULT_MASK', 2);                                                               // when QR_FIND_BEST_MASK === false
+                                                  
+    define('QR_PNG_MAXIMUM_SIZE',  1024);                                                       // maximum allowed png image width (in pixels), tune to make sure GD and PHP can handle such big images
+                                                  
\ No newline at end of file
diff --git a/src-backup/includes/phpqrcode/tools/merged_header.php b/src-backup/includes/phpqrcode/tools/merged_header.php
new file mode 100644
index 0000000..25805e5
--- /dev/null
+++ b/src-backup/includes/phpqrcode/tools/merged_header.php
@@ -0,0 +1,36 @@
+<?php
+
+/*
+ * PHP QR Code encoder
+ *
+ * This file contains MERGED version of PHP QR Code library.
+ * It was auto-generated from full version for your convenience.
+ *
+ * This merged version was configured to not requre any external files,
+ * with disabled cache, error loging and weker but faster mask matching.
+ * If you need tune it up please use non-merged version.
+ *
+ * For full version, documentation, examples of use please visit:
+ *
+ *    http://phpqrcode.sourceforge.net/
+ *    https://sourceforge.net/projects/phpqrcode/
+ *
+ * PHP QR Code is distributed under LGPL 3
+ * Copyright (C) 2010 Dominik Dzienia <deltalab at poczta dot fm>
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 3 of the License, or any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+ 
+ 
\ No newline at end of file
diff --git a/src-backup/index.php b/src-backup/index.php
new file mode 100644
index 0000000..05777e7
--- /dev/null
+++ b/src-backup/index.php
@@ -0,0 +1,690 @@
+<?php
+require_once 'includes/config.php';
+
+// Start session if not started
+if (session_status() === PHP_SESSION_NONE) {
+    session_start();
+}
+
+// Check if user is logged in and redirect accordingly
+if (isset($_SESSION['logged_in']) && $_SESSION['logged_in'] === true) {
+    // Redirect based on role
+    $redirect_url = 'student/dashboard.php'; // Default
+    
+    if (isset($_SESSION['role'])) {
+        switch ($_SESSION['role']) {
+            case 'admin':
+                $redirect_url = 'admin/dashboard.php';
+                break;
+            case 'teacher':
+                $redirect_url = 'teacher/dashboard.php';
+                break;
+            case 'student':
+                $redirect_url = 'student/dashboard.php';
+                break;
+        }
+    }
+    
+    header('Location: ' . $redirect_url);
+    exit();
+}
+
+// Database connection for stats (with error handling)
+function getDatabaseStats($query, $default = '0') {
+    global $conn; // Use the connection from config.php
+    
+    if (!isset($conn)) {
+        return $default;
+    }
+    
+    try {
+        $result = mysqli_query($conn, $query);
+        if ($result && mysqli_num_rows($result) > 0) {
+            $row = mysqli_fetch_assoc($result);
+            return number_format($row['total']);
+        }
+        return $default;
+    } catch (Exception $e) {
+        return $default;
+    }
+}
+
+// Get statistics
+$active_students = getDatabaseStats("SELECT COUNT(*) as total FROM students WHERE status = 1", '0');
+$course_count = getDatabaseStats("SELECT COUNT(DISTINCT id) as total FROM courses WHERE status = 1", '12');
+$today_checkins = getDatabaseStats("SELECT COUNT(*) as total FROM attendance WHERE DATE(created_at) = CURDATE()", '0');
+?>
+
+<!DOCTYPE html>
+<html lang="en">
+<head>
+    <meta charset="UTF-8">
+    <meta name="viewport" content="width=device-width, initial-scale=1.0">
+    <title>Attendance Management System - Aldersgate College</title>
+    
+    <!-- Bootstrap CSS -->
+    <link href="https://cdn.jsdelivr.net/npm/bootstrap@5.3.0/dist/css/bootstrap.min.css" rel="stylesheet">
+    <!-- Bootstrap Icons -->
+    <link rel="stylesheet" href="https://cdn.jsdelivr.net/npm/bootstrap-icons@1.10.0/font/bootstrap-icons.css">
+    <!-- Google Fonts -->
+    <link href="https://fonts.googleapis.com/css2?family=Poppins:wght@300;400;500;600;700&display=swap" rel="stylesheet">
+    
+    <style>
+        :root {
+            --primary-color: #167c16;
+            --secondary-color: #aebe22;
+            --accent-color: #0a5e0a;
+            --light-green: #e8f5e8;
+            --dark-green: #0c4d0c;
+        }
+        
+        body {
+            font-family: 'Poppins', sans-serif;
+            background-color: #f8f9fc;
+            min-height: 100vh;
+        }
+        
+        /* Navigation */
+        .navbar {
+            background: white;
+            box-shadow: 0 2px 10px rgba(0,0,0,0.1);
+            padding: 15px 0;
+            transition: all 0.3s ease;
+        }
+        
+        .navbar.scrolled {
+            padding: 10px 0;
+        }
+        
+        .navbar-brand {
+            font-weight: 700;
+            color: var(--primary-color) !important;
+            font-size: 1.5rem;
+        }
+        
+        .nav-link {
+            color: #333 !important;
+            font-weight: 500;
+            padding: 8px 16px !important;
+            transition: color 0.3s;
+        }
+        
+        .nav-link:hover {
+            color: var(--primary-color) !important;
+        }
+        
+        /* Hero Section */
+        .hero-section {
+            background: linear-gradient(135deg, var(--primary-color) 0%, var(--secondary-color) 100%);
+            color: white;
+            padding: 120px 0 80px;
+            position: relative;
+            overflow: hidden;
+        }
+        
+        .hero-section::before {
+            content: '';
+            position: absolute;
+            top: 0;
+            left: 0;
+            right: 0;
+            bottom: 0;
+            background: url('assets/images/ACbackground.png') no-repeat center center/cover;
+            opacity: 0.1;
+        }
+        
+        .hero-title {
+            font-size: 3rem;
+            font-weight: 700;
+            margin-bottom: 1.5rem;
+            text-shadow: 2px 2px 4px rgba(0,0,0,0.2);
+        }
+        
+        .hero-subtitle {
+            font-size: 1.25rem;
+            opacity: 0.95;
+            margin-bottom: 2rem;
+            line-height: 1.6;
+        }
+        
+        /* Features Section */
+        .features-section {
+            padding: 80px 0;
+            background-color: var(--light-green);
+        }
+        
+        .section-title {
+            color: var(--dark-green);
+            font-weight: 700;
+            margin-bottom: 3rem;
+            text-align: center;
+        }
+        
+        .feature-card {
+            background: white;
+            border: none;
+            border-radius: 15px;
+            padding: 30px;
+            text-align: center;
+            box-shadow: 0 5px 20px rgba(0,0,0,0.05);
+            transition: all 0.3s ease;
+            height: 100%;
+        }
+        
+        .feature-card:hover {
+            transform: translateY(-10px);
+            box-shadow: 0 15px 30px rgba(0,0,0,0.1);
+        }
+        
+        .feature-icon {
+            width: 80px;
+            height: 80px;
+            background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
+            border-radius: 50%;
+            display: flex;
+            align-items: center;
+            justify-content: center;
+            margin: 0 auto 25px;
+            color: white;
+            font-size: 2rem;
+        }
+        
+        .feature-title {
+            color: var(--dark-green);
+            font-weight: 600;
+            margin-bottom: 15px;
+        }
+        
+        /* Stats Section */
+        .stats-section {
+            padding: 60px 0;
+            background: white;
+        }
+        
+        .stat-card {
+            text-align: center;
+            padding: 30px 20px;
+        }
+        
+        .stat-number {
+            font-size: 3rem;
+            font-weight: 700;
+            color: var(--primary-color);
+            margin-bottom: 10px;
+            line-height: 1;
+        }
+        
+        .stat-label {
+            color: #666;
+            font-size: 1rem;
+            text-transform: uppercase;
+            letter-spacing: 1px;
+        }
+        
+        /* About Section */
+        .about-section {
+            padding: 80px 0;
+            background-color: #f8f9fa;
+        }
+        
+        .ac-logo {
+            max-width: 300px;
+            height: auto;
+            margin-bottom: 30px;
+        }
+        
+        /* Buttons */
+        .btn-primary {
+            background: var(--primary-color);
+            border: none;
+            padding: 12px 30px;
+            border-radius: 50px;
+            font-weight: 600;
+            transition: all 0.3s ease;
+        }
+        
+        .btn-primary:hover {
+            background: var(--dark-green);
+            transform: translateY(-2px);
+            box-shadow: 0 5px 15px rgba(10, 94, 10, 0.3);
+        }
+        
+        .btn-outline-primary {
+            color: var(--primary-color);
+            border: 2px solid var(--primary-color);
+            background: transparent;
+            padding: 12px 30px;
+            border-radius: 50px;
+            font-weight: 600;
+            transition: all 0.3s ease;
+        }
+        
+        .btn-outline-primary:hover {
+            background: var(--primary-color);
+            color: white;
+            transform: translateY(-2px);
+        }
+        
+        /* Footer */
+        .footer {
+            background: var(--dark-green);
+            color: white;
+            padding: 40px 0 20px;
+        }
+        
+        .footer-links a {
+            color: rgba(255,255,255,0.8);
+            text-decoration: none;
+            transition: color 0.3s;
+        }
+        
+        .footer-links a:hover {
+            color: white;
+        }
+        
+        .footer-links li {
+            margin-bottom: 10px;
+        }
+        
+        .copyright {
+            border-top: 1px solid rgba(255,255,255,0.1);
+            padding-top: 20px;
+            margin-top: 40px;
+        }
+        
+        /* Responsive Design */
+        @media (max-width: 768px) {
+            .hero-title {
+                font-size: 2.2rem;
+            }
+            
+            .hero-subtitle {
+                font-size: 1.1rem;
+            }
+            
+            .hero-section {
+                padding: 100px 0 60px;
+            }
+            
+            .stat-number {
+                font-size: 2.5rem;
+            }
+        }
+        
+        @media (max-width: 576px) {
+            .hero-title {
+                font-size: 1.8rem;
+            }
+            
+            .navbar-brand {
+                font-size: 1.2rem;
+            }
+        }
+        
+        /* Animation */
+        @keyframes fadeInUp {
+            from {
+                opacity: 0;
+                transform: translateY(30px);
+            }
+            to {
+                opacity: 1;
+                transform: translateY(0);
+            }
+        }
+        
+        .animate-fade-in-up {
+            animation: fadeInUp 0.6s ease-out forwards;
+        }
+    </style>
+</head>
+<body>
+    <!-- Navigation -->
+    <nav class="navbar navbar-expand-lg navbar-light fixed-top">
+        <div class="container">
+            <a class="navbar-brand d-flex align-items-center" href="index.php">
+                <span>Attendance Management System</span>
+            </a>
+            
+            <button class="navbar-toggler" type="button" data-bs-toggle="collapse" data-bs-target="#navbarNav">
+                <span class="navbar-toggler-icon"></span>
+            </button>
+            
+            <div class="collapse navbar-collapse" id="navbarNav">
+                <ul class="navbar-nav ms-auto">               
+                    <li class="nav-item">
+                        <a class="nav-link" href="#features">Features</a>
+                    </li>
+                    <li class="nav-item">
+                        <a class="nav-link" href="#about">About</a>
+                    </li>
+                    <li class="nav-item ms-2">
+                        <a href="auth/login.php" class="btn btn-primary">
+                            <i class="bi bi-box-arrow-in-right me-2"></i>Login
+                        </a>
+                    </li>
+                </ul>
+            </div>
+        </div>
+    </nav>
+
+    <!-- Hero Section -->
+    <section class="hero-section">
+        <div class="container">
+            <div class="row align-items-center">
+                <div class="col-lg-6">
+                    <h1 class="hero-title animate-fade-in-up">Attendance Management System</h1>
+                    <p class="hero-subtitle animate-fade-in-up" style="animation-delay: 0.1s;">
+                        A modern, efficient, and contactless attendance system using QR code technology. 
+                        Perfect for Aldersgate College's digital transformation needs.
+                    </p>
+                    <div class="animate-fade-in-up" style="animation-delay: 0.2s;">
+                        <a href="auth/login.php" class="btn btn-primary me-3">
+                            <i class="bi bi-box-arrow-in-right me-2"></i>Get Started
+                        </a>
+                        <a href="#features" class="btn btn-outline-primary text-white border-white">
+                            <i class="bi bi-info-circle me-2"></i>Learn More
+                        </a>
+                    </div>
+                </div>
+                <div class="col-lg-6">
+                    <div class="text-center mt-5 mt-lg-0">
+                        <img src="assets/images/AClogo.png" 
+                             alt="Aldersgate College Logo" 
+                             class="img-fluid animate-fade-in-up" 
+                             style="max-height: 300px; animation-delay: 0.3s;">
+                    </div>
+                </div>
+            </div>
+        </div>
+    </section>
+
+    <!-- Stats Section -->
+    <section class="stats-section">
+        <div class="container">
+            <div class="row text-center">
+                <div class="col-md-3 col-6 mb-4">
+                    <div class="stat-card">
+                        <div class="stat-number"><?php echo $active_students; ?></div>
+                        <div class="stat-label">Active Students</div>
+                    </div>
+                </div>
+                <div class="col-md-3 col-6 mb-4">
+                    <div class="stat-card">
+                        <div class="stat-number"><?php echo $course_count; ?></div>
+                        <div class="stat-label">Courses</div>
+                    </div>
+                </div>
+                <div class="col-md-3 col-6 mb-4">
+                    <div class="stat-card">
+                        <div class="stat-number"><?php echo $today_checkins; ?></div>
+                        <div class="stat-label">Today's Check-ins</div>
+                    </div>
+                </div>
+                <div class="col-md-3 col-6 mb-4">
+                    <div class="stat-card">
+                        <div class="stat-number">99.9%</div>
+                        <div class="stat-label">Accuracy Rate</div>
+                    </div>
+                </div>
+            </div>
+        </div>
+    </section>
+
+    <!-- Features Section -->
+    <section id="features" class="features-section">
+        <div class="container">
+            <h2 class="section-title">Key Features</h2>
+            <div class="row">
+                <div class="col-lg-4 col-md-6 mb-4">
+                    <div class="feature-card animate-fade-in-up">
+                        <div class="feature-icon">
+                            <i class="bi bi-qr-code-scan"></i>
+                        </div>
+                        <h4 class="feature-title">QR Code Attendance</h4>
+                        <p class="text-muted mb-0">
+                            Quick and contactless attendance marking with unique student QR codes.
+                        </p>
+                    </div>
+                </div>
+                <div class="col-lg-4 col-md-6 mb-4">
+                    <div class="feature-card animate-fade-in-up" style="animation-delay: 0.1s;">
+                        <div class="feature-icon">
+                            <i class="bi bi-graph-up"></i>
+                        </div>
+                        <h4 class="feature-title">Real-time Analytics</h4>
+                        <p class="text-muted mb-0">
+                            Comprehensive dashboards and detailed attendance reports.
+                        </p>
+                    </div>
+                </div>
+                <div class="col-lg-4 col-md-6 mb-4">
+                    <div class="feature-card animate-fade-in-up" style="animation-delay: 0.2s;">
+                        <div class="feature-icon">
+                            <i class="bi bi-people-fill"></i>
+                        </div>
+                        <h4 class="feature-title">Student Management</h4>
+                        <p class="text-muted mb-0">
+                            Manage profiles, courses, and departments with bulk import.
+                        </p>
+                    </div>
+                </div>
+                <div class="col-lg-4 col-md-6 mb-4">
+                    <div class="feature-card animate-fade-in-up">
+                        <div class="feature-icon">
+                            <i class="bi bi-calendar-event"></i>
+                        </div>
+                        <h4 class="feature-title">Activity Scheduling</h4>
+                        <p class="text-muted mb-0">
+                            Schedule classes, seminars, and events with specific time slots.
+                        </p>
+                    </div>
+                </div>
+                <div class="col-lg-4 col-md-6 mb-4">
+                    <div class="feature-card animate-fade-in-up" style="animation-delay: 0.1s;">
+                        <div class="feature-icon">
+                            <i class="bi bi-bell-fill"></i>
+                        </div>
+                        <h4 class="feature-title">Smart Notifications</h4>
+                        <p class="text-muted mb-0">
+                            Automated alerts for attendance, events, and announcements.
+                        </p>
+                    </div>
+                </div>
+                <div class="col-lg-4 col-md-6 mb-4">
+                    <div class="feature-card animate-fade-in-up" style="animation-delay: 0.2s;">
+                        <div class="feature-icon">
+                            <i class="bi bi-shield-check"></i>
+                        </div>
+                        <h4 class="feature-title">Secure & Reliable</h4>
+                        <p class="text-muted mb-0">
+                            Role-based access control with enterprise-grade security.
+                        </p>
+                    </div>
+                </div>
+            </div>
+        </div>
+    </section>
+
+    <!-- About Section -->
+    <section id="about" class="about-section">
+        <div class="container">
+            <div class="row align-items-center">
+                <div class="col-lg-6 text-center mb-5 mb-lg-0">
+                    <img src="assets/images/AClogo.png" alt="Aldersgate College" class="ac-logo">
+                    <h3 class="mb-3" style="color: var(--dark-green);">Aldersgate College</h3>
+                    <p class="text-muted mb-4">
+                        Solano, Nueva Vizcaya<br>
+                        Excellence in Education Since 1947
+                    </p>
+                </div>
+                <div class="col-lg-6">
+                    <h2 class="mb-4" style="color: var(--dark-green);">About This System</h2>
+                    <p class="mb-4">
+                        Developed specifically for Aldersgate College, this system modernizes and 
+                        streamlines attendance tracking across all departments and courses with 
+                        cutting-edge QR code technology.
+                    </p>
+                    <div class="row mb-4">
+                        <div class="col-md-6 mb-3">
+                            <div class="d-flex align-items-start">
+                                <i class="bi bi-check-circle-fill text-success me-3 mt-1"></i>
+                                <div>
+                                    <h6 class="mb-1">Contactless Operation</h6>
+                                    <small class="text-muted">No physical contact required</small>
+                                </div>
+                            </div>
+                        </div>
+                        <div class="col-md-6 mb-3">
+                            <div class="d-flex align-items-start">
+                                <i class="bi bi-check-circle-fill text-success me-3 mt-1"></i>
+                                <div>
+                                    <h6 class="mb-1">Real-time Tracking</h6>
+                                    <small class="text-muted">Live attendance monitoring</small>
+                                </div>
+                            </div>
+                        </div>
+                        <div class="col-md-6 mb-3">
+                            <div class="d-flex align-items-start">
+                                <i class="bi bi-check-circle-fill text-success me-3 mt-1"></i>
+                                <div>
+                                    <h6 class="mb-1">Easy Integration</h6>
+                                    <small class="text-muted">Works with existing systems</small>
+                                </div>
+                            </div>
+                        </div>
+                        <div class="col-md-6 mb-3">
+                            <div class="d-flex align-items-start">
+                                <i class="bi bi-check-circle-fill text-success me-3 mt-1"></i>
+                                <div>
+                                    <h6 class="mb-1">Mobile Ready</h6>
+                                    <small class="text-muted">Accessible on all devices</small>
+                                </div>
+                            </div>
+                        </div>
+                    </div>
+                    <div>
+                        <a href="auth/login.php" class="btn btn-primary">
+                            <i class="bi bi-box-arrow-in-right me-2"></i>Access System
+                        </a>
+                    </div>
+                </div>
+            </div>
+        </div>
+    </section>
+
+    <!-- Footer -->
+    <footer class="footer">
+        <div class="container">
+            <div class="row">
+                <div class="col-lg-6 mb-4">
+                    <h5 class="mb-3">Attendance Management System</h5>
+                    <p class="mb-4" style="color: rgba(255,255,255,0.8);">
+                        A comprehensive solution for modernizing attendance tracking 
+                        at Aldersgate College with QR code technology.
+                    </p>
+                    <div class="d-flex gap-3">
+                        <a href="https://www.facebook.com/imjohnlloyd26/" class="text-white"><i class="bi bi-facebook"></i></a>
+                        <a href="https://www.instagram.com/im_johnlloyd6/" class="text-white"><i class="bi bi-instagram"></i></a>
+                    </div>
+                </div>
+                <div class="col-lg-3 col-md-6 mb-4">
+                    <h5 class="mb-3">Quick Links</h5>
+                    <ul class="list-unstyled footer-links">
+                        <li><a href="#features">Features</a></li>
+                        <li><a href="#about">About</a></li>
+                        <li><a href="auth/login.php">Login</a></li>
+                    </ul>
+                </div>
+                <div class="col-lg-3 col-md-6 mb-4">
+                    <h5 class="mb-3">Contact Info</h5>
+                    <ul class="list-unstyled footer-links">
+                        <li class="mb-2">
+                            <i class="bi bi-geo-alt me-2"></i>
+                            Solano, Nueva Vizcaya
+                        </li>
+                        <li class="mb-2">
+                            <i class="bi bi-envelope me-2"></i>
+                            johnlloydsumawang04@gmail.com
+                        </li>
+                    </ul>
+                </div>
+            </div>
+            <div class="row copyright">
+                <div class="col-md-6">
+                    <p class="mb-0" style="color: rgba(255,255,255,0.6);">
+                        &copy; <?php echo date('Y'); ?> Attendance Management System.
+                    </p>
+                </div>
+                <div class="col-md-6 text-md-end">
+                    <p class="mb-0" style="color: rgba(255,255,255,0.6);">
+                        Programmed by <span class="text-white">John Lloyd Sumawang</span>
+                    </p>
+                </div>
+            </div>
+        </div>
+    </footer>
+
+    <!-- Bootstrap JS -->
+    <script src="https://cdn.jsdelivr.net/npm/bootstrap@5.3.0/dist/js/bootstrap.bundle.min.js"></script>
+    
+    <script>
+    document.addEventListener('DOMContentLoaded', function() {
+        // Smooth scrolling for anchor links
+        document.querySelectorAll('a[href^="#"]').forEach(anchor => {
+            anchor.addEventListener('click', function(e) {
+                const targetId = this.getAttribute('href');
+                if (targetId === '#') return;
+                
+                e.preventDefault();
+                const targetElement = document.querySelector(targetId);
+                if (targetElement) {
+                    window.scrollTo({
+                        top: targetElement.offsetTop - 80,
+                        behavior: 'smooth'
+                    });
+                }
+            });
+        });
+        
+        // Navbar scroll effect
+        const navbar = document.querySelector('.navbar');
+        window.addEventListener('scroll', function() {
+            if (window.scrollY > 50) {
+                navbar.classList.add('scrolled');
+                navbar.classList.add('shadow');
+            } else {
+                navbar.classList.remove('scrolled');
+                navbar.classList.remove('shadow');
+            }
+        });
+        
+        // Animate elements on scroll
+        const animateOnScroll = function() {
+            const elements = document.querySelectorAll('.animate-fade-in-up');
+            
+            elements.forEach(element => {
+                const elementTop = element.getBoundingClientRect().top;
+                const elementVisible = 150;
+                
+                if (elementTop < window.innerHeight - elementVisible) {
+                    element.style.opacity = "1";
+                    element.style.transform = "translateY(0)";
+                }
+            });
+        };
+        
+        // Set initial state for animated elements
+        document.querySelectorAll('.animate-fade-in-up').forEach(el => {
+            el.style.opacity = "0";
+            el.style.transform = "translateY(30px)";
+            el.style.transition = "opacity 0.6s ease, transform 0.6s ease";
+        });
+        
+        // Trigger animation on load and scroll
+        window.addEventListener('load', animateOnScroll);
+        window.addEventListener('scroll', animateOnScroll);
+    });
+    </script>
+</body>
+</html>
\ No newline at end of file
diff --git a/src-backup/qr/cleanup_qrcodes.php b/src-backup/qr/cleanup_qrcodes.php
new file mode 100644
index 0000000..9dcc3d3
--- /dev/null
+++ b/src-backup/qr/cleanup_qrcodes.php
@@ -0,0 +1,18 @@
+<?php
+// cleanup_qrcodes.php
+$temp_dir = '../temp_qrcodes/';
+
+if (file_exists($temp_dir)) {
+    $files = glob($temp_dir . '*.png');
+    $now = time();
+    
+    foreach ($files as $file) {
+        if (is_file($file)) {
+            // Delete files older than 1 hour
+            if ($now - filemtime($file) >= 3600) {
+                @unlink($file);
+            }
+        }
+    }
+}
+?>
\ No newline at end of file
diff --git a/src-backup/qr/generate.php b/src-backup/qr/generate.php
new file mode 100644
index 0000000..bd7f3d2
--- /dev/null
+++ b/src-backup/qr/generate.php
@@ -0,0 +1,593 @@
+<?php
+// generate.php - Compact Version
+require_once '../includes/config.php';
+
+// Check if student ID is provided
+if (!isset($_GET['id']) || empty($_GET['id'])) {
+    die('<div style="padding:15px;color:red;font-size:14px;">Error: Student ID required.</div>');
+}
+
+$student_id = intval($_GET['id']);
+
+// Get student data
+$sql = "SELECT s.*, c.code as course_code, c.name as course_name, 
+               d.name as department_name, sc.name as school_name
+        FROM students s
+        LEFT JOIN courses c ON s.course_id = c.id
+        LEFT JOIN departments d ON s.department_id = d.id
+        LEFT JOIN schools sc ON s.school_id = sc.id
+        WHERE s.id = ?";
+
+$stmt = mysqli_prepare($conn, $sql);
+mysqli_stmt_bind_param($stmt, 'i', $student_id);
+mysqli_stmt_execute($stmt);
+$result = mysqli_stmt_get_result($stmt);
+
+if (!$result || mysqli_num_rows($result) == 0) {
+    die('<div style="padding:15px;color:red;font-size:14px;">Error: Student not found.</div>');
+}
+
+$student = mysqli_fetch_assoc($result);
+mysqli_stmt_close($stmt);
+
+// Check if download or print is requested
+$download = isset($_GET['download']) && $_GET['download'] == '1';
+$print = isset($_GET['print']) && $_GET['print'] == '1';
+$auto_print = isset($_GET['autoPrint']) && $_GET['autoPrint'] == '1';
+
+// QR code content
+$qr_data = [
+    'ID' => $student['student_id'],
+    'Name' => $student['full_name'],
+    'Course' => $student['course_code'],
+    'Dept' => $student['department_name'],
+    'Year' => 'Year ' . $student['year_level'],
+    'Code' => $student['qr_code']
+];
+
+$qr_text = "";
+foreach ($qr_data as $key => $value) {
+    $qr_text .= "$key: $value\n";
+}
+
+// Create temp directory
+$temp_dir = '../temp_qrcodes/';
+if (!file_exists($temp_dir)) {
+    mkdir($temp_dir, 0777, true);
+}
+
+// Generate QR code
+$filename = 'qr_' . $student['student_id'] . '_' . time() . '.png';
+$filepath = $temp_dir . $filename;
+$qr_size = isset($_GET['size']) ? intval($_GET['size']) : 250;
+
+// Generate QR code from Google Charts
+$encoded_text = urlencode(trim($qr_text));
+$qr_url = "https://chart.googleapis.com/chart?chs={$qr_size}x{$qr_size}&cht=qr&chl={$encoded_text}&choe=UTF-8";
+$image_data = @file_get_contents($qr_url);
+
+if ($image_data === false) {
+    // Fallback
+    $qr_url = "https://api.qrserver.com/v1/create-qr-code/?size={$qr_size}x{$qr_size}&data=" . urlencode($qr_text);
+    $image_data = @file_get_contents($qr_url);
+}
+
+if ($image_data !== false) {
+    file_put_contents($filepath, $image_data);
+}
+
+// If download requested
+if ($download) {
+    if (file_exists($filepath)) {
+        header('Content-Type: application/octet-stream');
+        header('Content-Disposition: attachment; filename="QR_' . $student['student_id'] . '.png"');
+        header('Content-Length: ' . filesize($filepath));
+        readfile($filepath);
+        cleanupOldQRCodes($temp_dir);
+        exit();
+    }
+}
+
+// If print requested
+if ($print || $auto_print) {
+    ?>
+    <!DOCTYPE html>
+    <html>
+    <head>
+        <title>QR - <?php echo $student['full_name']; ?></title>
+        <style>
+            @media print { body { margin: 10px; } }
+            body { font-family: Arial, sans-serif; font-size: 12px; }
+            .container { max-width: 400px; margin: 0 auto; }
+            .header { text-align: center; margin-bottom: 15px; }
+            .qr-img { width: 250px; height: 250px; margin: 0 auto; display: block; }
+            .info { margin: 15px 0; }
+            .footer { text-align: center; margin-top: 10px; font-size: 10px; color: #666; }
+        </style>
+        <script>window.onload = function() { window.print(); setTimeout(() => window.close(), 500); }</script>
+    </head>
+    <body>
+        <div class="container">
+            <div class="header">
+                <h3 style="margin:0;"><?php echo htmlspecialchars($student['full_name']); ?></h3>
+                <p style="margin:5px 0;"><?php echo htmlspecialchars($student['student_id']); ?></p>
+            </div>
+            <?php if (file_exists($filepath)): ?>
+                <img src="<?php echo $filepath; ?>" class="qr-img" alt="QR Code">
+            <?php else: ?>
+                <div style="border:1px solid #ccc; padding:15px;">
+                    <pre><?php echo htmlspecialchars($qr_text); ?></pre>
+                </div>
+            <?php endif; ?>
+            <div class="info">
+                <p><strong><?php echo htmlspecialchars($student['course_code']); ?></strong></p>
+                <p>Year <?php echo $student['year_level']; ?> | <?php echo date('m/d/Y'); ?></p>
+            </div>
+        </div>
+    </body>
+    </html>
+    <?php
+    cleanupOldQRCodes($temp_dir);
+    exit();
+}
+?>
+
+<!DOCTYPE html>
+<html lang="en">
+<head>
+    <meta charset="UTF-8">
+    <meta name="viewport" content="width=device-width, initial-scale=1.0">
+    <title>QR - <?php echo htmlspecialchars($student['full_name']); ?></title>
+    <link rel="stylesheet" href="https://cdn.jsdelivr.net/npm/bootstrap-icons@1.10.0/font/bootstrap-icons.css">
+    <link href="https://cdn.jsdelivr.net/npm/bootstrap@5.1.3/dist/css/bootstrap.min.css" rel="stylesheet">
+    <style>
+        body {
+            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
+            background: #f8f9fa;
+            padding: 20px;
+            font-size: 14px;
+        }
+        
+        .container {
+            max-width: 800px;
+            margin: 0 auto;
+            background: white;
+            border-radius: 10px;
+            box-shadow: 0 3px 15px rgba(0,0,0,0.08);
+            overflow: hidden;
+        }
+        
+        .header {
+            background:#166b0e;
+            color: white;
+            padding: 15px 20px;
+        }
+        
+        .header h1 {
+            font-size: 1.5rem;
+            margin: 0;
+        }
+        
+        .content {
+            padding: 20px;
+            display: grid;
+            grid-template-columns: 1fr 1fr;
+            gap: 20px;
+        }
+        
+        @media (max-width: 768px) {
+            .content {
+                grid-template-columns: 1fr;
+            }
+        }
+        
+        .qr-card {
+            text-align: center;
+            padding: 15px;
+            background: #f8f9fa;
+            border-radius: 8px;
+        }
+        
+        .qr-img {
+            max-width: 250px;
+            width: 100%;
+            height: auto;
+            border-radius: 5px;
+            margin: 0 auto 15px;
+        }
+        
+        .qr-code {
+            font-family: 'Courier New', monospace;
+            font-size: 12px;
+            background: white;
+            padding: 8px;
+            border-radius: 5px;
+            word-break: break-all;
+            margin: 10px 0;
+        }
+        
+        .info-card {
+            padding: 15px;
+        }
+        
+        .student-header {
+            display: flex;
+            align-items: center;
+            gap: 15px;
+            margin-bottom: 15px;
+            padding-bottom: 15px;
+            border-bottom: 1px solid #dee2e6;
+        }
+        
+        .avatar {
+            width: 60px;
+            height: 60px;
+            border-radius: 50%;
+            object-fit: cover;
+            border: 3px solid #4361ee;
+        }
+        
+        .avatar-placeholder {
+            width: 60px;
+            height: 60px;
+            border-radius: 50%;
+            background:  #166b0e;
+            display: flex;
+            align-items: center;
+            justify-content: center;
+            border: 3px solid #cfee43;
+        }
+        
+        .avatar-placeholder i {
+            color: white;
+            font-size: 24px;
+        }
+        
+        .student-name {
+            font-weight: 600;
+            font-size: 1.1rem;
+            margin: 0;
+        }
+        
+        .student-id {
+            color: #4361ee;
+            font-weight: 500;
+            margin: 0;
+            font-size: 0.9rem;
+        }
+        
+        .info-grid {
+            display: grid;
+            grid-template-columns: 1fr 1fr;
+            gap: 10px;
+            margin-top: 10px;
+        }
+        
+        .info-item {
+            padding: 8px;
+            background: #f8f9fa;
+            border-radius: 5px;
+        }
+        
+        .info-label {
+            font-size: 11px;
+            color: #6c757d;
+            text-transform: uppercase;
+            font-weight: 600;
+            margin-bottom: 3px;
+        }
+        
+        .info-value {
+            font-size: 13px;
+            font-weight: 500;
+        }
+        
+        .status-badge {
+            display: inline-block;
+            padding: 3px 10px;
+            border-radius: 12px;
+            font-size: 11px;
+            font-weight: 600;
+        }
+        
+        .active { background: #d1fae5; color: #065f46; }
+        .inactive { background: #fee2e2; color: #991b1b; }
+        
+        .actions {
+            padding: 15px 20px;
+            background: #f8f9fa;
+            border-top: 1px solid #dee2e6;
+            display: flex;
+            gap: 10px;
+            flex-wrap: wrap;
+        }
+        
+        .btn {
+            display: inline-flex;
+            align-items: center;
+            gap: 6px;
+            padding: 8px 15px;
+            border: none;
+            border-radius: 6px;
+            font-size: 13px;
+            font-weight: 500;
+            text-decoration: none;
+        }
+        
+        .btn-primary { background: #4361ee; color: white; }
+        .btn-success { background: #10b981; color: white; }
+        .btn-secondary { background: #6c757d; color: white; }
+        
+        .btn:hover {
+            opacity: 0.9;
+            text-decoration: none;
+            color: white;
+        }
+        
+        .size-controls {
+            display: flex;
+            gap: 5px;
+            margin-top: 10px;
+            justify-content: center;
+        }
+        
+        .size-btn {
+            padding: 4px 10px;
+            border: 1px solid #4361ee;
+            background: white;
+            color: #4361ee;
+            border-radius: 4px;
+            font-size: 11px;
+            cursor: pointer;
+        }
+        
+        .size-btn.active {
+            background: #4361ee;
+            color: white;
+        }
+        
+        .timestamp {
+            text-align: center;
+            color: #6c757d;
+            font-size: 12px;
+            margin-top: 15px;
+            padding-top: 10px;
+            border-top: 1px solid #dee2e6;
+        }
+        
+        .print-only {
+            display: none;
+        }
+        
+        @media print {
+            body {
+                background: white !important;
+                padding: 0 !important;
+            }
+            
+            .container {
+                box-shadow: none !important;
+                border: 1px solid #ddd !important;
+            }
+            
+            .actions, .size-controls {
+                display: none !important;
+            }
+            
+            .print-only {
+                display: block;
+            }
+        }
+    </style>
+</head>
+<body>
+    <div class="container">
+        <div class="header">
+            <h1><i class="bi bi-qr-code-scan me-2"></i>Student QR Code</h1>
+        </div>
+        
+        <div class="content">
+            <!-- QR Code Section -->
+            <div class="qr-card">
+                <?php if (file_exists($filepath)): ?>
+                    <img src="<?php echo $filepath; ?>" class="qr-img" alt="QR Code" id="qrImage">
+                <?php else: ?>
+                    <div style="padding:15px; background:#f8d7da; border-radius:5px; color:#721c24;">
+                        <i class="bi bi-exclamation-triangle me-2"></i>
+                        QR code generation failed
+                        <div style="margin-top:10px; font-size:12px;">
+                            <pre><?php echo htmlspecialchars($qr_text); ?></pre>
+                        </div>
+                    </div>
+                <?php endif; ?>
+                
+                <div class="qr-code">
+                    <?php echo htmlspecialchars($student['qr_code']); ?>
+                </div>
+                
+                <div class="size-controls">
+                    <button class="size-btn <?php echo $qr_size == 200 ? 'active' : ''; ?>" 
+                            onclick="changeSize(200)">200px</button>
+                    <button class="size-btn <?php echo $qr_size == 250 ? 'active' : ''; ?>" 
+                            onclick="changeSize(250)">250px</button>
+                    <button class="size-btn <?php echo $qr_size == 300 ? 'active' : ''; ?>" 
+                            onclick="changeSize(300)">300px</button>
+                </div>
+            </div>
+            
+            <!-- Student Info Section -->
+            <div class="info-card">
+                <div class="student-header">
+                    <?php if (!empty($student['picture_path'])): ?>
+                        <img src="../<?php echo htmlspecialchars($student['picture_path']); ?>" 
+                             alt="Photo" class="avatar">
+                    <?php else: ?>
+                        <div class="avatar-placeholder">
+                            <i class="bi bi-person"></i>
+                        </div>
+                    <?php endif; ?>
+                    
+                    <div>
+                        <div class="student-name"><?php echo htmlspecialchars($student['full_name']); ?></div>
+                        <div class="student-id"><?php echo htmlspecialchars($student['student_id']); ?></div>
+                    </div>
+                </div>
+                
+                <div class="info-grid">
+                    <div class="info-item">
+                        <div class="info-label">Course</div>
+                        <div class="info-value"><?php echo htmlspecialchars($student['course_code']); ?></div>
+                    </div>
+                    
+                    <div class="info-item">
+                        <div class="info-label">Department</div>
+                        <div class="info-value"><?php echo htmlspecialchars($student['department_name']); ?></div>
+                    </div>
+                    
+                    <div class="info-item">
+                        <div class="info-label">Year</div>
+                        <div class="info-value">Year <?php echo $student['year_level']; ?></div>
+                    </div>
+                    
+                    <div class="info-item">
+                        <div class="info-label">School</div>
+                        <div class="info-value"><?php echo htmlspecialchars($student['school_name']); ?></div>
+                    </div>
+                    
+                    <div class="info-item">
+                        <div class="info-label">Email</div>
+                        <div class="info-value">
+                            <?php echo htmlspecialchars($student['email'] ?: '-'); ?>
+                        </div>
+                    </div>
+                    
+                    <div class="info-item">
+                        <div class="info-label">Contact</div>
+                        <div class="info-value">
+                            <?php echo htmlspecialchars($student['contact_number'] ?: '-'); ?>
+                        </div>
+                    </div>
+                    
+                    <div class="info-item">
+                        <div class="info-label">Status</div>
+                        <div class="info-value">
+                            <?php if ($student['status'] == 1): ?>
+                                <span class="status-badge active">
+                                    <i class="bi bi-check-circle me-1"></i>Active
+                                </span>
+                            <?php else: ?>
+                                <span class="status-badge inactive">
+                                    <i class="bi bi-x-circle me-1"></i>Inactive
+                                </span>
+                            <?php endif; ?>
+                        </div>
+                    </div>
+                    
+                    <div class="info-item">
+                        <div class="info-label">Generated</div>
+                        <div class="info-value"><?php echo date('m/d/Y h:i A'); ?></div>
+                    </div>
+                </div>
+                
+                <div class="timestamp">
+                    <i class="bi bi-clock me-1"></i>
+                    Last updated: <?php echo date('m/d/Y', strtotime($student['updated_at'])); ?>
+                </div>
+            </div>
+        </div>
+        
+        <div class="actions">
+            <button class="btn btn-primary" onclick="window.print()">
+                <i class="bi bi-printer me-1"></i>Print
+            </button>
+            
+            <button class="btn btn-success" onclick="downloadQR()">
+                <i class="bi bi-download me-1"></i>Download
+            </button>
+            
+            <a href="?id=<?php echo $student_id; ?>&print=1" target="_blank" class="btn btn-primary">
+                <i class="bi bi-printer-fill me-1"></i>Quick Print
+            </a>
+            
+            <a href="?id=<?php echo $student_id; ?>&download=1" class="btn btn-success">
+                <i class="bi bi-file-arrow-down me-1"></i>Direct Download
+            </a>
+            
+            <button class="btn btn-secondary" onclick="window.close()">
+                <i class="bi bi-x-circle me-1"></i>Close
+            </button>
+        </div>
+    </div>
+    
+    <script>
+    // Change QR size
+    function changeSize(size) {
+        const url = new URL(window.location.href);
+        url.searchParams.set('size', size);
+        window.location.href = url.toString();
+    }
+    
+    // Download QR code
+    function downloadQR() {
+        <?php if (file_exists($filepath)): ?>
+            const link = document.createElement('a');
+            link.href = '<?php echo $filepath; ?>';
+            link.download = 'QR_<?php echo $student['student_id']; ?>.png';
+            document.body.appendChild(link);
+            link.click();
+            document.body.removeChild(link);
+            
+            // Show notification
+            const notification = document.createElement('div');
+            notification.style.cssText = 'position:fixed; top:20px; right:20px; background:#10b981; color:white; padding:10px 15px; border-radius:5px; z-index:9999;';
+            notification.innerHTML = '<i class="bi bi-check-circle me-2"></i>Download started';
+            document.body.appendChild(notification);
+            setTimeout(() => notification.remove(), 2000);
+        <?php endif; ?>
+    }
+    
+    // Keyboard shortcuts
+    document.addEventListener('keydown', function(e) {
+        if ((e.ctrlKey || e.metaKey) && e.key === 'p') {
+            e.preventDefault();
+            window.print();
+        }
+        if ((e.ctrlKey || e.metaKey) && e.key === 'd') {
+            e.preventDefault();
+            downloadQR();
+        }
+        if (e.key === 'Escape') {
+            window.close();
+        }
+    });
+    
+    // Auto-print if requested
+    <?php if ($auto_print): ?>
+    window.onload = function() {
+        setTimeout(() => window.print(), 500);
+    };
+    <?php endif; ?>
+    </script>
+    
+    <script src="https://cdn.jsdelivr.net/npm/bootstrap@5.1.3/dist/js/bootstrap.bundle.min.js"></script>
+</body>
+</html>
+
+<?php
+// Cleanup function
+function cleanupOldQRCodes($dir) {
+    if (file_exists($dir)) {
+        $files = glob($dir . '*.png');
+        $now = time();
+        
+        foreach ($files as $file) {
+            if (is_file($file) && ($now - filemtime($file) >= 3600)) {
+                @unlink($file);
+            }
+        }
+    }
+}
+
+// Run cleanup
+cleanupOldQRCodes($temp_dir);
+?>
\ No newline at end of file
diff --git a/src-backup/qr/print.php b/src-backup/qr/print.php
new file mode 100644
index 0000000..ff110e1
--- /dev/null
+++ b/src-backup/qr/print.php
@@ -0,0 +1,194 @@
+<?php
+require_once '../includes/config.php';
+
+// Check if user is logged in
+if (!isset($_SESSION['logged_in']) || $_SESSION['logged_in'] !== true) {
+    header('Location: ../auth/login.php');
+    exit();
+}
+
+// Get student ID from URL
+$student_id = $_GET['id'] ?? 0;
+
+if (!$student_id) {
+    die('Student ID is required');
+}
+
+// Get student information
+$sql = "SELECT s.*, c.code as course_code, d.name as department_name 
+        FROM students s
+        LEFT JOIN courses c ON s.course_id = c.id
+        LEFT JOIN departments d ON s.department_id = d.id
+        WHERE s.id = $student_id AND s.status = 1";
+$result = query($conn, $sql);
+
+if (!$result || mysqli_num_rows($result) === 0) {
+    die('Student not found');
+}
+
+$student = mysqli_fetch_assoc($result);
+
+// Get the latest QR code file
+$qr_files = glob('generated/student_' . $student['student_id'] . '_*.png');
+$qr_filepath = !empty($qr_files) ? end($qr_files) : '';
+?>
+<!DOCTYPE html>
+<html lang="en">
+<head>
+    <meta charset="UTF-8">
+    <meta name="viewport" content="width=device-width, initial-scale=1.0">
+    <title>Print QR Code - <?php echo $student['full_name']; ?></title>
+    <style>
+        @media print {
+            @page {
+                margin: 0.5in;
+                size: letter portrait;
+            }
+            body {
+                font-family: Arial, sans-serif;
+                margin: 0;
+                padding: 0;
+                -webkit-print-color-adjust: exact !important;
+                print-color-adjust: exact !important;
+            }
+            .print-container {
+                text-align: center;
+                padding: 20px;
+            }
+            .school-header {
+                margin-bottom: 20px;
+            }
+            .school-header h2 {
+                color: #3498db;
+                margin-bottom: 5px;
+            }
+            .school-header h3 {
+                color: #666;
+                margin-top: 0;
+            }
+            .qr-code-container {
+                margin: 30px 0;
+                padding: 20px;
+                border: 1px solid #ddd;
+                display: inline-block;
+                background: white;
+            }
+            .qr-code-image {
+                width: 300px;
+                height: 300px;
+            }
+            .student-info {
+                margin: 20px 0;
+                padding: 15px;
+                border: 1px solid #eee;
+                display: inline-block;
+                text-align: left;
+            }
+            .student-info h4 {
+                margin-top: 0;
+                color: #333;
+            }
+            .footer {
+                margin-top: 40px;
+                font-size: 12px;
+                color: #666;
+                border-top: 1px solid #ddd;
+                padding-top: 10px;
+            }
+        }
+        
+        @media screen {
+            body {
+                background: #f8f9fa;
+                padding: 20px;
+            }
+            .print-container {
+                max-width: 800px;
+                margin: 0 auto;
+                background: white;
+                padding: 30px;
+                border-radius: 10px;
+                box-shadow: 0 5px 15px rgba(0,0,0,0.1);
+            }
+            .print-actions {
+                text-align: center;
+                margin-bottom: 20px;
+                padding-bottom: 20px;
+                border-bottom: 1px solid #dee2e6;
+            }
+        }
+    </style>
+</head>
+<body>
+    <?php if (!isset($_GET['auto'])): ?>
+    <div class="print-actions">
+        <button onclick="window.print()" class="btn btn-primary" style="padding: 10px 20px; font-size: 16px;">
+            <i class="bi bi-printer"></i> Print Now
+        </button>
+        <button onclick="window.close()" class="btn btn-secondary" style="padding: 10px 20px; font-size: 16px;">
+            <i class="bi bi-x-circle"></i> Close
+        </button>
+    </div>
+    <?php endif; ?>
+    
+    <div class="print-container">
+        <!-- School Header -->
+        <div class="school-header">
+            <h2><?php echo SITE_NAME; ?></h2>
+            <h3>Student QR Code</h3>
+        </div>
+        
+        <!-- QR Code -->
+        <div class="qr-code-container">
+            <?php if ($qr_filepath && file_exists($qr_filepath)): ?>
+                <img src="<?php echo $qr_filepath; ?>" alt="QR Code" class="qr-code-image">
+            <?php else: ?>
+                <div style="width: 300px; height: 300px; background: #f0f0f0; display: flex; align-items: center; justify-content: center;">
+                    <p>QR Code not generated</p>
+                </div>
+            <?php endif; ?>
+        </div>
+        
+        <!-- Student Information -->
+        <div class="student-info">
+            <h4><?php echo $student['full_name']; ?></h4>
+            <table style="border-collapse: collapse;">
+                <tr>
+                    <td style="padding: 5px 10px 5px 0;"><strong>Student ID:</strong></td>
+                    <td style="padding: 5px 0;"><?php echo $student['student_id']; ?></td>
+                </tr>
+                <tr>
+                    <td style="padding: 5px 10px 5px 0;"><strong>Year Level:</strong></td>
+                    <td style="padding: 5px 0;">Year <?php echo $student['year_level']; ?></td>
+                </tr>
+                <tr>
+                    <td style="padding: 5px 10px 5px 0;"><strong>Course:</strong></td>
+                    <td style="padding: 5px 0;"><?php echo $student['course_code']; ?></td>
+                </tr>
+                <tr>
+                    <td style="padding: 5px 10px 5px 0;"><strong>Department:</strong></td>
+                    <td style="padding: 5px 0;"><?php echo $student['department_name']; ?></td>
+                </tr>
+            </table>
+        </div>
+        
+        <!-- Footer -->
+        <div class="footer">
+            <p>Generated on: <?php echo date('F j, Y'); ?></p>
+            <p>© <?php echo date('Y'); ?> <?php echo SITE_NAME; ?> - QR Attendance System</p>
+            <p><small>Present this QR code at attendance stations for scanning</small></p>
+        </div>
+    </div>
+    
+    <?php if (isset($_GET['auto'])): ?>
+    <script>
+        window.onload = function() {
+            window.print();
+            setTimeout(function() {
+                window.close();
+            }, 1000);
+        }
+    </script>
+    <?php endif; ?>
+</body>
+</html>
\ No newline at end of file
diff --git a/src-backup/qr/simple_cleanup.php b/src-backup/qr/simple_cleanup.php
new file mode 100644
index 0000000..097a830
--- /dev/null
+++ b/src-backup/qr/simple_cleanup.php
@@ -0,0 +1,22 @@
+<?php
+// simple_cleanup.php
+$temp_dir = '../temp_qrcodes/';
+
+if (file_exists($temp_dir)) {
+    $files = glob($temp_dir . '*.png');
+    $deleted = 0;
+    
+    foreach ($files as $file) {
+        // Delete files older than 1 hour
+        if (time() - filemtime($file) > 3600) {
+            if (unlink($file)) {
+                $deleted++;
+            }
+        }
+    }
+    
+    echo "Deleted $deleted old QR code files.";
+} else {
+    echo "QR directory not found.";
+}
+?>
\ No newline at end of file
diff --git a/src-backup/qr/test_gd.php b/src-backup/qr/test_gd.php
new file mode 100644
index 0000000..d2b25e4
--- /dev/null
+++ b/src-backup/qr/test_gd.php
@@ -0,0 +1,3 @@
+<?php
+phpinfo();
+?>
\ No newline at end of file
diff --git a/src-backup/reports/print_report.php b/src-backup/reports/print_report.php
new file mode 100644
index 0000000..6942289
--- /dev/null
+++ b/src-backup/reports/print_report.php
@@ -0,0 +1,356 @@
+<?php
+require_once '../includes/config.php';
+
+// Check if user is logged in
+if (!isset($_SESSION['logged_in']) || $_SESSION['logged_in'] !== true) {
+    header('Location: ../auth/login.php');
+    exit();
+}
+
+// Check if report data exists
+if (!isset($_SESSION['report_data'])) {
+    header('Location: students_report.php');
+    exit();
+}
+
+$report_data = $_SESSION['report_data'];
+$students = $report_data['students'] ?? [];
+$filters = $report_data['filters'] ?? [];
+
+unset($_SESSION['report_data']);
+
+// Get report type
+$type = $_GET['type'] ?? 'print';
+
+// For PDF generation, you would use a library like TCPDF
+if ($type === 'pdf') {
+    require_once '../vendor/autoload.php';
+    
+    // TCPDF implementation would go here
+    // For now, we'll output HTML that can be printed as PDF
+    
+    header('Content-Type: application/pdf');
+    header('Content-Disposition: attachment; filename="students_report_' . date('Y-m-d') . '.pdf"');
+    
+    // In production, generate actual PDF
+    // $pdf = new TCPDF();
+    // $pdf->AddPage();
+    // $pdf->writeHTML($html);
+    // $pdf->Output();
+    exit();
+}
+?>
+
+<!DOCTYPE html>
+<html lang="en">
+<head>
+    <meta charset="UTF-8">
+    <meta name="viewport" content="width=device-width, initial-scale=1.0">
+    <title>Student Report</title>
+    <style>
+        @media print {
+            .no-print { display: none !important; }
+            body { font-size: 12pt; }
+            .container { width: 100% !important; max-width: none !important; }
+            table { page-break-inside: auto; }
+            tr { page-break-inside: avoid; page-break-after: auto; }
+            thead { display: table-header-group; }
+            tfoot { display: table-footer-group; }
+        }
+        
+        body {
+            font-family: Arial, sans-serif;
+            line-height: 1.6;
+            color: #333;
+        }
+        
+        .report-header {
+            text-align: center;
+            margin-bottom: 30px;
+            padding-bottom: 20px;
+            border-bottom: 2px solid #333;
+        }
+        
+        .report-title {
+            font-size: 24px;
+            font-weight: bold;
+            margin-bottom: 5px;
+        }
+        
+        .report-subtitle {
+            font-size: 16px;
+            color: #666;
+        }
+        
+        .report-info {
+            margin-bottom: 20px;
+            padding: 15px;
+            background-color: #f8f9fa;
+            border-radius: 5px;
+        }
+        
+        .info-row {
+            display: flex;
+            justify-content: space-between;
+            margin-bottom: 5px;
+        }
+        
+        table {
+            width: 100%;
+            border-collapse: collapse;
+            margin-bottom: 20px;
+        }
+        
+        th, td {
+            border: 1px solid #ddd;
+            padding: 8px;
+            text-align: left;
+        }
+        
+        th {
+            background-color: #f2f2f2;
+            font-weight: bold;
+        }
+        
+        tr:nth-child(even) {
+            background-color: #f9f9f9;
+        }
+        
+        .status-active {
+            color: green;
+            font-weight: bold;
+        }
+        
+        .status-inactive {
+            color: red;
+            font-weight: bold;
+        }
+        
+        .print-options {
+            margin-bottom: 20px;
+            padding: 15px;
+            background-color: #e9ecef;
+            border-radius: 5px;
+        }
+        
+        .summary-box {
+            margin-top: 30px;
+            padding: 15px;
+            background-color: #f8f9fa;
+            border-left: 4px solid #007bff;
+        }
+        
+        .footer {
+            margin-top: 50px;
+            padding-top: 20px;
+            border-top: 1px solid #ddd;
+            text-align: center;
+            font-size: 12px;
+            color: #666;
+        }
+    </style>
+</head>
+<body>
+    <div class="container">
+        <!-- Print Options -->
+        <div class="print-options no-print">
+            <div style="display: flex; justify-content: space-between; align-items: center;">
+                <div>
+                    <button onclick="window.print()" class="btn" style="background-color: #007bff; color: white; padding: 8px 16px; border: none; border-radius: 4px; cursor: pointer;">
+                        <i class="bi bi-printer"></i> Print Report
+                    </button>
+                    <button onclick="window.close()" class="btn" style="background-color: #6c757d; color: white; padding: 8px 16px; border: none; border-radius: 4px; cursor: pointer; margin-left: 10px;">
+                        Close
+                    </button>
+                </div>
+                <div>
+                    <button onclick="saveAsPDF()" class="btn" style="background-color: #dc3545; color: white; padding: 8px 16px; border: none; border-radius: 4px; cursor: pointer;">
+                        <i class="bi bi-file-pdf"></i> Save as PDF
+                    </button>
+                </div>
+            </div>
+        </div>
+        
+        <!-- Report Header -->
+        <div class="report-header">
+            <div class="report-title">Student Report</div>
+            <div class="report-subtitle">Generated on <?php echo date('F j, Y, h:i A'); ?></div>
+        </div>
+        
+        <!-- Report Info -->
+        <div class="report-info">
+            <div class="info-row">
+                <div><strong>Total Students:</strong> <?php echo count($students); ?></div>
+                <div><strong>Page:</strong> 1 of 1</div>
+            </div>
+            <div class="info-row">
+                <div>
+                    <strong>Filters Applied:</strong>
+                    <?php
+                    $filter_text = [];
+                    if ($filters['status'] !== 'all') {
+                        $filter_text[] = 'Status: ' . ($filters['status'] == 1 ? 'Active' : 'Inactive');
+                    }
+                    if ($filters['year_level'] !== 'all') {
+                        $filter_text[] = 'Year Level: ' . $filters['year_level'];
+                    }
+                    if ($filters['course'] !== 'all') {
+                        $filter_text[] = 'Course Filtered';
+                    }
+                    if ($filters['date_from']) {
+                        $filter_text[] = 'From: ' . date('M j, Y', strtotime($filters['date_from']));
+                    }
+                    if ($filters['date_to']) {
+                        $filter_text[] = 'To: ' . date('M j, Y', strtotime($filters['date_to']));
+                    }
+                    
+                    echo empty($filter_text) ? 'No filters applied' : implode(', ', $filter_text);
+                    ?>
+                </div>
+                <div><strong>Generated By:</strong> <?php echo $_SESSION['full_name'] ?? 'Admin'; ?></div>
+            </div>
+        </div>
+        
+        <!-- Students Table -->
+        <?php if (!empty($students)): ?>
+            <table>
+                <thead>
+                    <tr>
+                        <th>#</th>
+                        <th>Student ID</th>
+                        <th>Full Name</th>
+                        <th>Gender</th>
+                        <th>Year Level</th>
+                        <th>Course</th>
+                        <th>Email</th>
+                        <th>Contact</th>
+                        <th>Status</th>
+                        <th>Date Registered</th>
+                    </tr>
+                </thead>
+                <tbody>
+                    <?php 
+                    $counter = 1;
+                    $active_count = 0;
+                    $inactive_count = 0;
+                    $year_counts = [1 => 0, 2 => 0, 3 => 0, 4 => 0];
+                    
+                    foreach ($students as $student): 
+                        if ($student['status'] == 1) $active_count++;
+                        else $inactive_count++;
+                        
+                        $year_counts[$student['year_level']]++;
+                    ?>
+                    <tr>
+                        <td><?php echo $counter++; ?></td>
+                        <td><?php echo $student['student_id']; ?></td>
+                        <td><?php echo $student['full_name']; ?></td>
+                        <td><?php echo $student['gender']; ?></td>
+                        <td>Year <?php echo $student['year_level']; ?></td>
+                        <td><?php echo $student['course_code'] ?? ''; ?></td>
+                        <td><?php echo $student['email']; ?></td>
+                        <td><?php echo $student['contact_number']; ?></td>
+                        <td>
+                            <?php if ($student['status'] == 1): ?>
+                                <span class="status-active">Active</span>
+                            <?php else: ?>
+                                <span class="status-inactive">Inactive</span>
+                            <?php endif; ?>
+                        </td>
+                        <td><?php echo date('M j, Y', strtotime($student['created_at'])); ?></td>
+                    </tr>
+                    <?php endforeach; ?>
+                </tbody>
+            </table>
+            
+            <!-- Summary -->
+            <div class="summary-box">
+                <h4>Summary</h4>
+                <div style="display: grid; grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); gap: 15px;">
+                    <div>
+                        <strong>Total Students:</strong> <?php echo count($students); ?>
+                    </div>
+                    <div>
+                        <strong>Active:</strong> <?php echo $active_count; ?>
+                    </div>
+                    <div>
+                        <strong>Inactive:</strong> <?php echo $inactive_count; ?>
+                    </div>
+                    <?php foreach ($year_counts as $year => $count): ?>
+                        <div>
+                            <strong>Year <?php echo $year; ?>:</strong> <?php echo $count; ?>
+                        </div>
+                    <?php endforeach; ?>
+                </div>
+            </div>
+        <?php else: ?>
+            <div style="text-align: center; padding: 40px;">
+                <h4>No students found matching the selected criteria</h4>
+                <p>Try adjusting your filters.</p>
+            </div>
+        <?php endif; ?>
+        
+        <!-- Footer -->
+        <div class="footer">
+            <div>Student Management System</div>
+            <div>Report generated electronically - <?php echo date('F j, Y, h:i:s A'); ?></div>
+            <div>Page 1 of 1</div>
+        </div>
+    </div>
+    
+    <script>
+    function saveAsPDF() {
+        // In production, use a proper PDF generation library
+        // For now, we'll use browser's print to PDF
+        
+        const originalTitle = document.title;
+        document.title = 'Student Report - <?php echo date('Y-m-d'); ?>';
+        
+        window.print();
+        
+        document.title = originalTitle;
+    }
+    
+    function downloadCSV() {
+        // Create CSV content
+        let csvContent = "data:text/csv;charset=utf-8,";
+        
+        // Headers
+        csvContent += "Student ID,Full Name,Gender,Year Level,Course,Email,Contact,Status,Date Registered\n";
+        
+        // Data
+        <?php foreach ($students as $student): ?>
+        csvContent += "<?php 
+            echo addslashes($student['student_id']) . ',' .
+                   addslashes($student['full_name']) . ',' .
+                   addslashes($student['gender']) . ',' .
+                   'Year ' . $student['year_level'] . ',' .
+                   addslashes(($student['course_code'] ?? '') . ' - ' . ($student['course_name'] ?? '')) . ',' .
+                   addslashes($student['email']) . ',' .
+                   addslashes($student['contact_number']) . ',' .
+                   ($student['status'] == 1 ? 'Active' : 'Inactive') . ',' .
+                   date('Y-m-d', strtotime($student['created_at']));
+        ?>\n";
+        <?php endforeach; ?>
+        
+        // Create download link
+        const encodedUri = encodeURI(csvContent);
+        const link = document.createElement("a");
+        link.setAttribute("href", encodedUri);
+        link.setAttribute("download", "students_<?php echo date('Y-m-d'); ?>.csv");
+        document.body.appendChild(link);
+        link.click();
+        document.body.removeChild(link);
+    }
+    
+    // Auto-print if specified
+    <?php if ($type === 'print'): ?>
+    window.onload = function() {
+        setTimeout(function() {
+            window.print();
+        }, 500);
+    };
+    <?php endif; ?>
+    </script>
+</body>
+</html>
\ No newline at end of file
diff --git a/src-backup/reports/students_report.php b/src-backup/reports/students_report.php
new file mode 100644
index 0000000..886306e
--- /dev/null
+++ b/src-backup/reports/students_report.php
@@ -0,0 +1,375 @@
+<?php
+require_once '../includes/config.php';
+
+// Check if user is logged in and is admin
+if (!isset($_SESSION['logged_in']) || $_SESSION['logged_in'] !== true || $_SESSION['role'] !== 'admin') {
+    header('Location: ../auth/login.php');
+    exit();
+}
+
+$title = "Student Reports";
+
+// Initialize variables
+$message = '';
+$message_type = '';
+
+// Handle report generation
+if ($_SERVER['REQUEST_METHOD'] === 'POST' && isset($_POST['generate_report'])) {
+    $report_type = $_POST['report_type'] ?? 'all';
+    $status_filter = $_POST['status_filter'] ?? 'all';
+    $year_level_filter = $_POST['year_level_filter'] ?? 'all';
+    $course_filter = $_POST['course_filter'] ?? 'all';
+    $date_from = $_POST['date_from'] ?? '';
+    $date_to = $_POST['date_to'] ?? '';
+    
+    // Build query based on filters
+    $sql = "SELECT s.*, g.name as gender, c.code as course_code, c.name as course_name, 
+                   d.code as department_code, d.name as department_name,
+                   sc.code as school_code, sc.name as school_name
+            FROM students s
+            LEFT JOIN genders g ON s.gender_id = g.id
+            LEFT JOIN courses c ON s.course_id = c.id
+            LEFT JOIN departments d ON s.department_id = d.id
+            LEFT JOIN schools sc ON s.school_id = sc.id
+            WHERE 1=1";
+    
+    if ($status_filter !== 'all') {
+        $sql .= " AND s.status = " . intval($status_filter);
+    }
+    
+    if ($year_level_filter !== 'all') {
+        $sql .= " AND s.year_level = " . intval($year_level_filter);
+    }
+    
+    if ($course_filter !== 'all') {
+        $sql .= " AND s.course_id = " . intval($course_filter);
+    }
+    
+    if (!empty($date_from)) {
+        $sql .= " AND DATE(s.created_at) >= '" . escape($conn, $date_from) . "'";
+    }
+    
+    if (!empty($date_to)) {
+        $sql .= " AND DATE(s.created_at) <= '" . escape($conn, $date_to) . "'";
+    }
+    
+    $sql .= " ORDER BY s.created_at DESC";
+    
+    $result = query($conn, $sql);
+    $students = [];
+    while ($row = mysqli_fetch_assoc($result)) {
+        $students[] = $row;
+    }
+    
+    // Generate PDF
+    if ($report_type === 'pdf') {
+        require_once '../vendor/autoload.php'; // If using TCPDF or Dompdf
+        
+        // For now, we'll create a simple HTML report that can be printed
+        // In production, you'd use a PDF library like TCPDF or Dompdf
+        $_SESSION['report_data'] = [
+            'students' => $students,
+            'filters' => [
+                'status' => $status_filter,
+                'year_level' => $year_level_filter,
+                'course' => $course_filter,
+                'date_from' => $date_from,
+                'date_to' => $date_to
+            ]
+        ];
+        
+        header('Location: print_report.php?type=pdf');
+        exit();
+    } 
+    // Generate Excel
+    elseif ($report_type === 'excel') {
+        require_once '../includes/PHPExcel.php'; // Or use PhpSpreadsheet
+        
+        // Create Excel file
+        $filename = "students_report_" . date('Y-m-d_H-i-s') . ".xlsx";
+        header('Content-Type: application/vnd.openxmlformats-officedocument.spreadsheetml.sheet');
+        header('Content-Disposition: attachment; filename="' . $filename . '"');
+        
+        // For now, create CSV as fallback
+        outputCSV($students);
+        exit();
+    }
+    // Print view
+    elseif ($report_type === 'print') {
+        $_SESSION['report_data'] = [
+            'students' => $students,
+            'filters' => [
+                'status' => $status_filter,
+                'year_level' => $year_level_filter,
+                'course' => $course_filter,
+                'date_from' => $date_from,
+                'date_to' => $date_to
+            ]
+        ];
+        
+        header('Location: print_report.php');
+        exit();
+    }
+}
+
+// Get courses for filter dropdown
+$courses = [];
+$result = query($conn, "SELECT id, code, name FROM courses WHERE status = 1 ORDER BY code");
+while ($row = mysqli_fetch_assoc($result)) {
+    $courses[] = $row;
+}
+
+// Get departments
+$departments = [];
+$result = query($conn, "SELECT id, code, name FROM departments WHERE status = 1 ORDER BY code");
+while ($row = mysqli_fetch_assoc($result)) {
+    $departments[] = $row;
+}
+
+function outputCSV($data) {
+    $output = fopen('php://output', 'w');
+    
+    // Header row
+    fputcsv($output, [
+        'Student ID', 'Full Name', 'Gender', 'Year Level', 'Course',
+        'Department', 'Email', 'Contact Number', 'Status', 'Date Created'
+    ]);
+    
+    // Data rows
+    foreach ($data as $student) {
+        fputcsv($output, [
+            $student['student_id'],
+            $student['full_name'],
+            $student['gender'],
+            'Year ' . $student['year_level'],
+            $student['course_code'] . ' - ' . $student['course_name'],
+            $student['department_name'],
+            $student['email'],
+            $student['contact_number'],
+            $student['status'] == 1 ? 'Active' : 'Inactive',
+            date('Y-m-d', strtotime($student['created_at']))
+        ]);
+    }
+    
+    fclose($output);
+}
+
+include '../includes/header.php';
+?>
+
+<!-- Page Header -->
+<div class="d-flex justify-content-between align-items-center mb-4">
+    <div>
+        <h1 class="h3 mb-2">Student Reports</h1>
+        <p class="text-muted">Generate and export student reports in various formats.</p>
+    </div>
+    <div>
+        <a href="manage_students.php" class="btn btn-outline-secondary">
+            <i class="bi bi-arrow-left me-2"></i> Back to Students
+        </a>
+    </div>
+</div>
+
+<!-- Message Alert -->
+<?php if ($message): ?>
+<div class="alert alert-<?php echo $message_type; ?> alert-dismissible fade show">
+    <?php echo $message; ?>
+    <button type="button" class="btn-close" data-bs-dismiss="alert"></button>
+</div>
+<?php endif; ?>
+
+<!-- Report Filters Card -->
+<div class="card shadow mb-4">
+    <div class="card-header">
+        <h6 class="m-0 font-weight-bold">
+            <i class="bi bi-filter me-2"></i> Report Filters
+        </h6>
+    </div>
+    <div class="card-body">
+        <form method="POST" action="">
+            <div class="row">
+                <div class="col-md-3 mb-3">
+                    <label class="form-label">Report Type</label>
+                    <select class="form-select" name="report_type" required>
+                        <option value="print">Print Preview</option>
+                        <option value="pdf">PDF Document</option>
+                        <option value="excel">Excel Spreadsheet</option>
+                    </select>
+                </div>
+                
+                <div class="col-md-3 mb-3">
+                    <label class="form-label">Status</label>
+                    <select class="form-select" name="status_filter">
+                        <option value="all">All Status</option>
+                        <option value="1">Active Only</option>
+                        <option value="0">Inactive Only</option>
+                    </select>
+                </div>
+                
+                <div class="col-md-3 mb-3">
+                    <label class="form-label">Year Level</label>
+                    <select class="form-select" name="year_level_filter">
+                        <option value="all">All Year Levels</option>
+                        <?php for ($i = 1; $i <= 4; $i++): ?>
+                            <option value="<?php echo $i; ?>">Year <?php echo $i; ?></option>
+                        <?php endfor; ?>
+                    </select>
+                </div>
+                
+                <div class="col-md-3 mb-3">
+                    <label class="form-label">Course</label>
+                    <select class="form-select" name="course_filter">
+                        <option value="all">All Courses</option>
+                        <?php foreach ($courses as $course): ?>
+                            <option value="<?php echo $course['id']; ?>">
+                                <?php echo $course['code']; ?> - <?php echo $course['name']; ?>
+                            </option>
+                        <?php endforeach; ?>
+                    </select>
+                </div>
+                
+                <div class="col-md-6 mb-3">
+                    <label class="form-label">Date From</label>
+                    <input type="date" class="form-control" name="date_from">
+                </div>
+                
+                <div class="col-md-6 mb-3">
+                    <label class="form-label">Date To</label>
+                    <input type="date" class="form-control" name="date_to">
+                </div>
+                
+                <div class="col-12">
+                    <div class="d-flex justify-content-end gap-2">
+                        <button type="reset" class="btn btn-secondary">
+                            <i class="bi bi-arrow-clockwise me-1"></i> Reset Filters
+                        </button>
+                        <button type="submit" name="generate_report" class="btn btn-primary">
+                            <i class="bi bi-file-earmark-text me-1"></i> Generate Report
+                        </button>
+                    </div>
+                </div>
+            </div>
+        </form>
+    </div>
+</div>
+
+<!-- Quick Export Options -->
+<div class="row mb-4">
+    <div class="col-md-4">
+        <div class="card h-100">
+            <div class="card-body text-center">
+                <i class="bi bi-printer text-primary mb-3" style="font-size: 3rem;"></i>
+                <h5>Quick Print</h5>
+                <p class="text-muted">Generate a printable student list</p>
+                <form method="POST" action="">
+                    <input type="hidden" name="report_type" value="print">
+                    <input type="hidden" name="status_filter" value="all">
+                    <button type="submit" name="generate_report" class="btn btn-outline-primary">
+                        <i class="bi bi-printer me-1"></i> Print All Students
+                    </button>
+                </form>
+            </div>
+        </div>
+    </div>
+    
+    <div class="col-md-4">
+        <div class="card h-100">
+            <div class="card-body text-center">
+                <i class="bi bi-file-excel text-success mb-3" style="font-size: 3rem;"></i>
+                <h5>Export Excel</h5>
+                <p class="text-muted">Download as Excel spreadsheet</p>
+                <form method="POST" action="">
+                    <input type="hidden" name="report_type" value="excel">
+                    <input type="hidden" name="status_filter" value="all">
+                    <button type="submit" name="generate_report" class="btn btn-outline-success">
+                        <i class="bi bi-download me-1"></i> Export to Excel
+                    </button>
+                </form>
+            </div>
+        </div>
+    </div>
+    
+    <div class="col-md-4">
+        <div class="card h-100">
+            <div class="card-body text-center">
+                <i class="bi bi-file-pdf text-danger mb-3" style="font-size: 3rem;"></i>
+                <h5>PDF Report</h5>
+                <p class="text-muted">Generate detailed PDF report</p>
+                <form method="POST" action="">
+                    <input type="hidden" name="report_type" value="pdf">
+                    <input type="hidden" name="status_filter" value="all">
+                    <button type="submit" name="generate_report" class="btn btn-outline-danger">
+                        <i class="bi bi-file-earmark-pdf me-1"></i> Generate PDF
+                    </button>
+                </form>
+            </div>
+        </div>
+    </div>
+</div>
+
+<?php 
+$page_scripts = '
+<script>
+$(document).ready(function() {
+    // Set today as default date for "Date To"
+    const today = new Date().toISOString().split("T")[0];
+    $("input[name=\'date_to\']").val(today);
+    
+    // Set 30 days ago as default for "Date From"
+    const thirtyDaysAgo = new Date();
+    thirtyDaysAgo.setDate(thirtyDaysAgo.getDate() - 30);
+    $("input[name=\'date_from\']").val(thirtyDaysAgo.toISOString().split("T")[0]);
+    
+    // Form validation
+    $("form").submit(function() {
+        const dateFrom = $("input[name=\'date_from\']").val();
+        const dateTo = $("input[name=\'date_to\']").val();
+        
+        if (dateFrom && dateTo && new Date(dateFrom) > new Date(dateTo)) {
+            showNotification("Date From cannot be after Date To", "danger");
+            return false;
+        }
+        
+        showLoader("Generating report...");
+        return true;
+    });
+});
+
+// Quick export functions
+function exportActiveStudents() {
+    showConfirm("Export all active students to Excel?", function(confirmed) {
+        if (confirmed) {
+            const form = document.createElement("form");
+            form.method = "POST";
+            form.action = "";
+            
+            const typeInput = document.createElement("input");
+            typeInput.type = "hidden";
+            typeInput.name = "report_type";
+            typeInput.value = "excel";
+            form.appendChild(typeInput);
+            
+            const statusInput = document.createElement("input");
+            statusInput.type = "hidden";
+            statusInput.name = "status_filter";
+            statusInput.value = "1";
+            form.appendChild(statusInput);
+            
+            document.body.appendChild(form);
+            form.submit();
+        }
+    });
+}
+
+function printStudentCards() {
+    showConfirm("Generate printable student ID cards?", function(confirmed) {
+        if (confirmed) {
+            window.open("student_cards.php", "_blank");
+        }
+    });
+}
+</script>
+';
+
+include '../includes/footer.php';
+?>
\ No newline at end of file
diff --git a/src-backup/save_draft.php b/src-backup/save_draft.php
new file mode 100644
index 0000000..a08eeff
--- /dev/null
+++ b/src-backup/save_draft.php
@@ -0,0 +1,18 @@
+<?php
+// save_draft.php
+require_once '../includes/config.php';
+
+if ($_SERVER['REQUEST_METHOD'] === 'POST') {
+    $student_id = intval($_POST['student_id'] ?? 0);
+    $draft_data = json_encode($_POST);
+    
+    // Save to database or session
+    $_SESSION['student_draft_' . $student_id] = $draft_data;
+    
+    echo json_encode([
+        'success' => true,
+        'message' => 'Draft saved successfully',
+        'timestamp' => date('h:i:s A')
+    ]);
+}
+?>
\ No newline at end of file
diff --git a/src-backup/setup.php b/src-backup/setup.php
new file mode 100644
index 0000000..98aefb7
--- /dev/null
+++ b/src-backup/setup.php
@@ -0,0 +1,258 @@
+<?php
+// attendance_system/setup.php
+echo "<!DOCTYPE html>
+<html lang='en'>
+<head>
+    <meta charset='UTF-8'>
+    <meta name='viewport' content='width=device-width, initial-scale=1.0'>
+    <title>Attendance System Setup Check</title>
+    <link href='https://cdn.jsdelivr.net/npm/bootstrap@5.1.3/dist/css/bootstrap.min.css' rel='stylesheet'>
+    <style>
+        body {
+            background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
+            min-height: 100vh;
+            padding: 20px;
+        }
+        .container {
+            background: white;
+            border-radius: 15px;
+            padding: 30px;
+            box-shadow: 0 10px 30px rgba(0,0,0,0.2);
+            margin-top: 50px;
+        }
+        .check-list {
+            font-family: 'Courier New', monospace;
+        }
+        .success {
+            color: #198754;
+        }
+        .error {
+            color: #dc3545;
+        }
+        .warning {
+            color: #ffc107;
+        }
+    </style>
+</head>
+<body>
+    <div class='container'>
+        <h1 class='text-center mb-4'>🏫 QR Attendance System Setup</h1>
+        <div class='alert alert-info'>
+            <i class='bi bi-info-circle'></i> Checking system requirements...
+        </div>";
+
+echo "<h4 class='mt-4'>📋 System Requirements Check</h4>";
+echo "<div class='check-list'>";
+
+// 1. Check PHP version
+if (version_compare(PHP_VERSION, '7.4.0') >= 0) {
+    echo "<div class='success'>✓ PHP 7.4+ is installed (Current: " . PHP_VERSION . ")</div>";
+} else {
+    echo "<div class='error'>✗ PHP 7.4+ is required (Current: " . PHP_VERSION . ")</div>";
+}
+
+// 2. Check MySQLi extension
+if (extension_loaded('mysqli')) {
+    echo "<div class='success'>✓ MySQLi extension is enabled</div>";
+} else {
+    echo "<div class='error'>✗ MySQLi extension is required</div>";
+}
+
+// 3. Check session support
+if (function_exists('session_start')) {
+    echo "<div class='success'>✓ Session support is enabled</div>";
+} else {
+    echo "<div class='error'>✗ Session support is required</div>";
+}
+
+echo "</div>";
+
+echo "<h4 class='mt-4'>🗄️ Database Connection Check</h4>";
+echo "<div class='check-list'>";
+
+// Database connection test
+$host = 'localhost';
+$user = 'root';
+$pass = '';
+$dbname = 'attendance_system';
+
+$conn = @mysqli_connect($host, $user, $pass);
+if ($conn) {
+    echo "<div class='success'>✓ Connected to MySQL server</div>";
+    
+    // Check if database exists
+    $db_selected = @mysqli_select_db($conn, $dbname);
+    if ($db_selected) {
+        echo "<div class='success'>✓ Database '$dbname' exists</div>";
+        
+        // Check required tables
+        $required_tables = [
+            'users' => 'Users table',
+            'students' => 'Students table',
+            'activities' => 'Activities table',
+            'attendance' => 'Attendance table',
+            'courses' => 'Courses table',
+            'departments' => 'Departments table',
+            'genders' => 'Genders table',
+            'schools' => 'Schools table'
+        ];
+        
+        foreach ($required_tables as $table => $description) {
+            $result = @mysqli_query($conn, "SHOW TABLES LIKE '$table'");
+            if ($result && mysqli_num_rows($result) > 0) {
+                echo "<div class='success'>✓ $description exists</div>";
+            } else {
+                echo "<div class='error'>✗ $description is missing</div>";
+            }
+        }
+        
+        // Check if there are users in the database
+        $result = @mysqli_query($conn, "SELECT COUNT(*) as count FROM users");
+        if ($result) {
+            $row = mysqli_fetch_assoc($result);
+            if ($row['count'] > 0) {
+                echo "<div class='success'>✓ Users found in database</div>";
+                
+                // Show sample users
+                $result = @mysqli_query($conn, "SELECT username, role, full_name FROM users LIMIT 3");
+                if ($result && mysqli_num_rows($result) > 0) {
+                    echo "<div class='alert alert-info mt-2'><small>Sample users:</small><br>";
+                    while ($user = mysqli_fetch_assoc($result)) {
+                        echo "<small>• {$user['username']} ({$user['role']}) - {$user['full_name']}</small><br>";
+                    }
+                    echo "</div>";
+                }
+            } else {
+                echo "<div class='warning'>⚠ No users found in database</div>";
+            }
+        }
+        
+    } else {
+        echo "<div class='error'>✗ Database '$dbname' does not exist</div>";
+        echo "<div class='alert alert-warning'>";
+        echo "Please import the SQL file first:<br>";
+        echo "<code>mysql -u root -p attendance_system < attendance_system.sql</code>";
+        echo "</div>";
+    }
+    
+    mysqli_close($conn);
+} else {
+    echo "<div class='error'>✗ Cannot connect to MySQL server</div>";
+    echo "<div class='alert alert-danger'>";
+    echo "MySQL Error: " . mysqli_connect_error() . "<br>";
+    echo "Please check your database credentials in includes/config.php";
+    echo "</div>";
+}
+
+echo "</div>";
+
+echo "<h4 class='mt-4'>📁 Directory Structure Check</h4>";
+echo "<div class='check-list'>";
+
+// Check directory structure
+$required_dirs = [
+    'includes' => 'Configuration files',
+    'assets/css' => 'CSS stylesheets',
+    'assets/js' => 'JavaScript files',
+    'admin' => 'Admin pages',
+    'teacher' => 'Teacher pages',
+    'student' => 'Student pages',
+    'auth' => 'Authentication pages',
+    'api' => 'API endpoints',
+    'qr/generated' => 'QR code storage'
+];
+
+foreach ($required_dirs as $dir => $description) {
+    if (is_dir($dir)) {
+        echo "<div class='success'>✓ Directory '$dir' exists</div>";
+        
+        // Check if directory is writable (for qr/generated)
+        if (in_array($dir, ['qr/generated'])) {
+            if (is_writable($dir)) {
+                echo "<div class='success'>✓ Directory '$dir' is writable</div>";
+            } else {
+                echo "<div class='warning'>⚠ Directory '$dir' is not writable</div>";
+            }
+        }
+    } else {
+        echo "<div class='error'>✗ Directory '$dir' is missing</div>";
+    }
+}
+
+echo "</div>";
+
+echo "<h4 class='mt-4'>📄 Required Files Check</h4>";
+echo "<div class='check-list'>";
+
+// Check required files
+$required_files = [
+    'includes/config.php' => 'Configuration file',
+    'auth/login.php' => 'Login page',
+    'admin/dashboard.php' => 'Admin dashboard',
+    'admin/attendance.php' => 'QR scanner page',
+    'api/scan_qr.php' => 'QR scanning API',
+    'index.php' => 'Main entry point'
+];
+
+foreach ($required_files as $file => $description) {
+    if (file_exists($file)) {
+        $size = filesize($file);
+        echo "<div class='success'>✓ $description exists (" . round($size/1024, 2) . " KB)</div>";
+    } else {
+        echo "<div class='error'>✗ $description is missing</div>";
+    }
+}
+
+echo "</div>";
+
+echo "<h4 class='mt-4'>🚀 Quick Actions</h4>";
+echo "<div class='row mt-3'>";
+echo "<div class='col-md-4 mb-2'>";
+echo "<a href='auth/login.php' class='btn btn-primary w-100'>";
+echo "<i class='bi bi-box-arrow-in-right'></i> Go to Login Page";
+echo "</a>";
+echo "</div>";
+
+echo "<div class='col-md-4 mb-2'>";
+echo "<a href='admin/dashboard.php' class='btn btn-success w-100'>";
+echo "<i class='bi bi-speedometer2'></i> Admin Dashboard";
+echo "</a>";
+echo "</div>";
+
+echo "<div class='col-md-4 mb-2'>";
+echo "<a href='admin/attendance.php' class='btn btn-info w-100'>";
+echo "<i class='bi bi-qr-code-scan'></i> QR Scanner";
+echo "</a>";
+echo "</div>";
+echo "</div>";
+
+echo "<div class='alert alert-success mt-4'>";
+echo "<h5><i class='bi bi-check-circle'></i> Setup Instructions:</h5>";
+echo "<ol>";
+echo "<li>Import the SQL file to your database</li>";
+echo "<li>Update database credentials in <code>includes/config.php</code></li>";
+echo "<li>Make sure <code>qr/generated/</code> directory is writable</li>";
+echo "<li>Access the system via: <code>http://localhost/attendance_system/</code></li>";
+echo "<li>Login with default credentials: <strong>johnlloyd12 / password</strong></li>";
+echo "</ol>";
+echo "</div>";
+
+echo "<div class='alert alert-warning'>";
+echo "<h5><i class='bi bi-exclamation-triangle'></i> Security Notes:</h5>";
+echo "<ul>";
+echo "<li>Change default passwords after first login</li>";
+echo "<li>Disable error display in production (set <code>display_errors = Off</code> in php.ini)</li>";
+echo "<li>Use HTTPS in production environment</li>";
+echo "<li>Regularly backup your database</li>";
+echo "</ul>";
+echo "</div>";
+
+echo "<div class='text-center mt-4'>";
+echo "<small class='text-muted'>QR Attendance System v1.0 | " . date('Y-m-d H:i:s') . "</small>";
+echo "</div>";
+
+echo "</div>
+<script src='https://cdn.jsdelivr.net/npm/bootstrap@5.1.3/dist/js/bootstrap.bundle.min.js'></script>
+</body>
+</html>";
+?>
\ No newline at end of file
diff --git a/src-backup/temp_qrcodes/qr_016-0128_1766215818.png b/src-backup/temp_qrcodes/qr_016-0128_1766215818.png
new file mode 100644
index 0000000..9a3ab76
Binary files /dev/null and b/src-backup/temp_qrcodes/qr_016-0128_1766215818.png differ
diff --git a/src-backup/test_connection.php b/src-backup/test_connection.php
new file mode 100644
index 0000000..937196d
--- /dev/null
+++ b/src-backup/test_connection.php
@@ -0,0 +1,55 @@
+<?php
+echo "Testing database connection...<br>";
+echo "Current directory: " . __DIR__ . "<br><br>";
+
+// Test direct connection
+try {
+    $pdo_test = new PDO(
+        "mysql:host=localhost;dbname=attendance_system;charset=utf8mb4",
+        "root",
+        "",
+        [
+            PDO::ATTR_ERRMODE => PDO::ERRMODE_EXCEPTION,
+            PDO::ATTR_DEFAULT_FETCH_MODE => PDO::FETCH_ASSOC
+        ]
+    );
+    
+    echo "✅ Direct database connection successful!<br>";
+    
+    // Test query
+    $stmt = $pdo_test->query("SELECT COUNT(*) as count FROM users");
+    $result = $stmt->fetch();
+    echo "✅ Database query successful!<br>";
+    echo "Total users: " . $result['count'] . "<br>";
+    
+} catch (PDOException $e) {
+    echo "❌ Database connection failed: " . $e->getMessage() . "<br>";
+}
+
+echo "<br>Now testing includes/database.php...<br>";
+
+$path = __DIR__ . '/includes/database.php';
+echo "Looking for file at: " . $path . "<br>";
+
+if (file_exists($path)) {
+    echo "✅ File exists!<br>";
+    
+    // Include the file
+    require_once $path;
+    
+    if (isset($pdo)) {
+        echo "✅ \$pdo variable is set!<br>";
+        
+        try {
+            $stmt = $pdo->query("SELECT 1");
+            echo "✅ Database query through includes/database.php works!<br>";
+        } catch (Exception $e) {
+            echo "❌ Query failed: " . $e->getMessage() . "<br>";
+        }
+    } else {
+        echo "❌ \$pdo variable is NOT set!<br>";
+    }
+} else {
+    echo "❌ File does NOT exist!<br>";
+}
+?>
\ No newline at end of file
diff --git a/src-backup/test_db.php b/src-backup/test_db.php
new file mode 100644
index 0000000..6b1a837
--- /dev/null
+++ b/src-backup/test_db.php
@@ -0,0 +1,13 @@
+<?php
+require_once 'includes/database.php';
+echo "Database connected successfully!<br>";
+
+try {
+    // Test query
+    $stmt = $pdo->query("SELECT COUNT(*) as count FROM users");
+    $result = $stmt->fetch();
+    echo "Total users in database: " . $result['count'];
+} catch (Exception $e) {
+    echo "Error: " . $e->getMessage();
+}
+?>
\ No newline at end of file
diff --git a/src.zip b/src.zip
new file mode 100644
index 0000000..3d62867
Binary files /dev/null and b/src.zip differ
diff --git a/src/admin/activities.php b/src/admin/activities.php
new file mode 100644
index 0000000..49f8505
--- /dev/null
+++ b/src/admin/activities.php
@@ -0,0 +1,293 @@
+<?php
+require __DIR__ . '/../includes/bootstrap.php';
+require_login();
+
+$pdo = db();
+$errors = [];
+
+$courses = $pdo->query('SELECT id, name FROM courses WHERE status = 1 ORDER BY name')->fetchAll();
+$departments = $pdo->query('SELECT id, name FROM departments WHERE status = 1 ORDER BY name')->fetchAll();
+
+if (is_post()) {
+    if (!validate_csrf_token($_POST['csrf_token'] ?? null)) {
+        $errors[] = 'Invalid session token.';
+    } else {
+        $action = $_POST['action'] ?? 'create';
+
+        if ($action === 'delete') {
+            $id = (int) ($_POST['id'] ?? 0);
+            $pdo->prepare('DELETE FROM activities WHERE id = :id')->execute(['id' => $id]);
+            add_flash('success', 'Activity removed.');
+            redirect('admin/activities.php');
+        }
+
+        $payload = [
+            'name' => trim($_POST['name'] ?? ''),
+            'date' => $_POST['date'] ?? null,
+            'time_in' => $_POST['time_in'] ?? null,
+            'time_out' => $_POST['time_out'] ?? null,
+            'location' => trim($_POST['location'] ?? ''),
+            'required_students' => $_POST['required_students'] ?? 'all',
+            'course_id' => $_POST['required_students'] === 'specific_course' ? (int) ($_POST['course_id'] ?? 0) : null,
+            'department_id' => $_POST['required_students'] === 'specific_department' ? (int) ($_POST['department_id'] ?? 0) : null,
+            'description' => trim($_POST['description'] ?? ''),
+            'status' => (int) ($_POST['status'] ?? 1),
+            'created_by' => current_user()['id'],
+        ];
+
+        if ($payload['name'] === '' || !$payload['date']) {
+            $errors[] = 'Activity name and date are required.';
+        }
+
+        if (!$errors) {
+            if ($action === 'update') {
+                $updatePayload = $payload;
+                $updatePayload['id'] = (int) ($_POST['id'] ?? 0);
+                unset($updatePayload['created_by']);
+                $stmt = $pdo->prepare(
+                    'UPDATE activities SET name = :name, date = :date, time_in = :time_in, time_out = :time_out,
+                        location = :location, required_students = :required_students, course_id = :course_id,
+                        department_id = :department_id, description = :description, status = :status
+                     WHERE id = :id'
+                );
+                $stmt->execute($updatePayload);
+                add_flash('success', 'Activity updated.');
+            } else {
+                $stmt = $pdo->prepare(
+                    'INSERT INTO activities (name, date, time_in, time_out, location, required_students,
+                        course_id, department_id, description, status, created_by)
+                     VALUES (:name, :date, :time_in, :time_out, :location, :required_students,
+                        :course_id, :department_id, :description, :status, :created_by)'
+                );
+                $stmt->execute($payload);
+                add_flash('success', 'Activity scheduled.');
+            }
+
+            redirect('admin/activities.php');
+        }
+    }
+}
+
+$activities = $pdo->query(
+    'SELECT a.*, c.name AS course_name, d.name AS department_name, u.full_name AS creator
+     FROM activities a
+     LEFT JOIN courses c ON a.course_id = c.id
+     LEFT JOIN departments d ON a.department_id = d.id
+     LEFT JOIN users u ON a.created_by = u.id
+     ORDER BY a.date DESC, a.time_in DESC'
+)->fetchAll();
+
+render_header('Activities', ['active' => 'activities']);
+?>
+<div class="card shadow-sm">
+    <div class="card-header bg-white d-flex justify-content-between align-items-center">
+        <div>
+            <h5 class="mb-0">Activities</h5>
+            <small class="text-muted"><?= count($activities) ?> scheduled</small>
+        </div>
+        <div class="d-flex gap-2 align-items-center">
+            <?php if ($errors): ?>
+                <span class="text-danger small"><?= sanitize(implode(' ', $errors)) ?></span>
+            <?php endif; ?>
+            <button class="btn btn-primary" data-bs-toggle="modal" data-bs-target="#activityModal" data-mode="create">
+                Schedule Activity
+            </button>
+        </div>
+    </div>
+    <div class="card-body">
+        <?php if (!$activities): ?>
+            <p class="text-muted mb-0 text-center">No activities scheduled.</p>
+        <?php else: ?>
+            <div class="table-responsive">
+                <table class="table align-middle">
+                    <thead>
+                    <tr>
+                        <th>Name</th>
+                        <th>Date</th>
+                        <th>Audience</th>
+                        <th>Location</th>
+                        <th>Status</th>
+                        <th class="text-end">Actions</th>
+                    </tr>
+                    </thead>
+                    <tbody>
+                    <?php foreach ($activities as $activity): ?>
+                        <?php
+                        $recordPayload = encode_record([
+                            'id' => (int) $activity['id'],
+                            'name' => $activity['name'],
+                            'date' => $activity['date'],
+                            'time_in' => $activity['time_in'],
+                            'time_out' => $activity['time_out'],
+                            'location' => $activity['location'],
+                            'required_students' => $activity['required_students'],
+                            'course_id' => $activity['course_id'],
+                            'department_id' => $activity['department_id'],
+                            'description' => $activity['description'],
+                            'status' => (int) $activity['status'],
+                        ]);
+                        $timeIn = $activity['time_in'] !== null ? substr($activity['time_in'], 0, 5) : '—';
+                        $timeOut = $activity['time_out'] !== null ? substr($activity['time_out'], 0, 5) : '—';
+                        ?>
+                        <tr>
+                            <td>
+                                <strong><?= sanitize($activity['name']) ?></strong><br>
+                                <span class="text-muted-sm">Created by <?= sanitize($activity['creator'] ?? 'N/A') ?></span>
+                            </td>
+                            <td>
+                                <?= format_date($activity['date']) ?><br>
+                                <span class="text-muted-sm"><?= sanitize($timeIn) ?> — <?= sanitize($timeOut) ?></span>
+                            </td>
+                            <td>
+                                <?php
+                                $audience = match ($activity['required_students']) {
+                                    'specific_course' => $activity['course_name'] ?? 'Course',
+                                    'specific_department' => $activity['department_name'] ?? 'Department',
+                                    default => 'All Students',
+                                };
+                                ?>
+                                <?= sanitize($audience) ?>
+                            </td>
+                            <td><?= sanitize($activity['location']) ?></td>
+                            <td>
+                                <span class="badge <?= $activity['status'] ? 'bg-success-subtle text-success' : 'bg-secondary' ?>">
+                                    <?= $activity['status'] ? 'Active' : 'Inactive' ?>
+                                </span>
+                            </td>
+                            <td class="text-end">
+                                <button class="btn btn-sm btn-outline-primary"
+                                        data-bs-toggle="modal"
+                                        data-bs-target="#activityModal"
+                                        data-mode="edit"
+                                        data-record="<?= sanitize($recordPayload) ?>">
+                                    Edit
+                                </button>
+                                <button class="btn btn-sm btn-outline-danger"
+                                        data-bs-toggle="modal"
+                                        data-bs-target="#deleteActivityModal"
+                                        data-record-name="<?= sanitize($activity['name']) ?>"
+                                        data-record-ref="<?= sanitize(format_date($activity['date'])) ?>"
+                                        data-id="<?= (int) $activity['id'] ?>">
+                                    Delete
+                                </button>
+                            </td>
+                        </tr>
+                    <?php endforeach; ?>
+                    </tbody>
+                </table>
+            </div>
+        <?php endif; ?>
+    </div>
+</div>
+
+<!-- Activity modal -->
+<div class="modal fade" id="activityModal" tabindex="-1" aria-hidden="true"
+     data-create-title="Schedule Activity" data-edit-title="Edit Activity"
+     data-create-submit="Schedule Activity" data-edit-submit="Save Changes">
+    <div class="modal-dialog modal-lg modal-dialog-scrollable">
+        <div class="modal-content">
+            <form method="post" class="needs-validation" novalidate>
+                <div class="modal-header">
+                    <h5 class="modal-title" data-modal-title>Schedule Activity</h5>
+                    <button type="button" class="btn-close" data-bs-dismiss="modal" aria-label="Close"></button>
+                </div>
+                <div class="modal-body">
+                    <input type="hidden" name="csrf_token" value="<?= sanitize(ensure_csrf_token()) ?>">
+                    <input type="hidden" name="action" value="create">
+                    <input type="hidden" name="id" value="">
+                    <div class="row g-3">
+                        <div class="col-12">
+                            <label class="form-label">Name</label>
+                            <input type="text" name="name" class="form-control" required>
+                        </div>
+                        <div class="col-md-4">
+                            <label class="form-label">Date</label>
+                            <input type="date" name="date" class="form-control" required>
+                        </div>
+                        <div class="col-md-4">
+                            <label class="form-label">Time In</label>
+                            <input type="time" name="time_in" class="form-control">
+                        </div>
+                        <div class="col-md-4">
+                            <label class="form-label">Time Out</label>
+                            <input type="time" name="time_out" class="form-control">
+                        </div>
+                        <div class="col-md-6">
+                            <label class="form-label">Location</label>
+                            <input type="text" name="location" class="form-control">
+                        </div>
+                        <div class="col-md-6">
+                            <label class="form-label">Required Participants</label>
+                            <select name="required_students" class="form-select">
+                                <option value="all" selected>All Students</option>
+                                <option value="specific_course">Specific Course</option>
+                                <option value="specific_department">Specific Department</option>
+                            </select>
+                        </div>
+                        <div class="col-md-6">
+                            <label class="form-label">Course Filter</label>
+                            <select name="course_id" class="form-select">
+                                <option value="" selected>—</option>
+                                <?php foreach ($courses as $course): ?>
+                                    <option value="<?= $course['id'] ?>"><?= sanitize($course['name']) ?></option>
+                                <?php endforeach; ?>
+                            </select>
+                        </div>
+                        <div class="col-md-6">
+                            <label class="form-label">Department Filter</label>
+                            <select name="department_id" class="form-select">
+                                <option value="" selected>—</option>
+                                <?php foreach ($departments as $department): ?>
+                                    <option value="<?= $department['id'] ?>"><?= sanitize($department['name']) ?></option>
+                                <?php endforeach; ?>
+                            </select>
+                        </div>
+                        <div class="col-12">
+                            <label class="form-label">Description</label>
+                            <textarea name="description" class="form-control" rows="2"></textarea>
+                        </div>
+                        <div class="col-12">
+                            <label class="form-label">Status</label>
+                            <select name="status" class="form-select">
+                                <option value="1" selected>Active</option>
+                                <option value="0">Inactive</option>
+                            </select>
+                        </div>
+                    </div>
+                </div>
+                <div class="modal-footer">
+                    <button type="button" class="btn btn-outline-secondary" data-bs-dismiss="modal">Cancel</button>
+                    <button type="submit" class="btn btn-primary">Schedule Activity</button>
+                </div>
+            </form>
+        </div>
+    </div>
+</div>
+
+<!-- Delete confirmation modal -->
+<div class="modal fade" id="deleteActivityModal" tabindex="-1" aria-hidden="true">
+    <div class="modal-dialog">
+        <div class="modal-content">
+            <form method="post">
+                <div class="modal-header">
+                    <h5 class="modal-title">Delete Activity</h5>
+                    <button type="button" class="btn-close" data-bs-dismiss="modal" aria-label="Close"></button>
+                </div>
+                <div class="modal-body">
+                    <input type="hidden" name="csrf_token" value="<?= sanitize(ensure_csrf_token()) ?>">
+                    <input type="hidden" name="action" value="delete">
+                    <input type="hidden" name="id" value="">
+                    <p class="mb-1">Are you sure you want to delete this activity?</p>
+                    <p class="fw-semibold mb-0" data-delete-name>Activity Name</p>
+                    <small class="text-muted" data-delete-id data-label="Date">Date: —</small>
+                </div>
+                <div class="modal-footer">
+                    <button type="button" class="btn btn-outline-secondary" data-bs-dismiss="modal">Cancel</button>
+                    <button type="submit" class="btn btn-danger">Delete</button>
+                </div>
+            </form>
+        </div>
+    </div>
+</div>
+<?php
+render_footer();
diff --git a/src/admin/attendance.php b/src/admin/attendance.php
new file mode 100644
index 0000000..79f5610
--- /dev/null
+++ b/src/admin/attendance.php
@@ -0,0 +1,131 @@
+<?php
+require __DIR__ . '/../includes/bootstrap.php';
+require_login();
+require_admin();
+
+$pdo = db();
+
+$activities = $pdo->query(
+    'SELECT id, name, date, time_in, time_out
+     FROM activities
+     WHERE status = 1 AND date >= CURDATE() - INTERVAL 1 DAY
+     ORDER BY date DESC, time_in DESC'
+)->fetchAll();
+$hasActivities = !empty($activities);
+
+$todayAttendance = $pdo->query(
+    'SELECT att.*, s.full_name, s.student_id, act.name AS activity_name
+     FROM attendance att
+     INNER JOIN students s ON att.student_id = s.id
+     INNER JOIN activities act ON att.activity_id = act.id
+     WHERE DATE(att.time_in) = CURDATE()
+     ORDER BY att.time_in DESC'
+)->fetchAll();
+
+render_header('Scan Center', ['active' => 'attendance']);
+?>
+<div class="row g-4">
+    <div class="col-lg-5">
+        <div class="scan-panel h-100">
+            <h2>Admin Scan Center</h2>
+            <p class="mb-4 text-white-50">Only signed-in administrators can scan QR codes. Use the camera or type the token below.</p>
+            <?php if (!$hasActivities): ?>
+                <div class="alert alert-warning bg-warning-subtle text-dark">
+                    No active activities available. Create one first to start scanning.
+                </div>
+            <?php endif; ?>
+            <form data-scan-form data-endpoint="<?= url_for('api/scan.php') ?>" class="v-stack gap-3">
+                <div>
+                    <label class="form-label text-white">Activity</label>
+                    <select name="activity_id" class="form-select form-select-lg" <?= $hasActivities ? '' : 'disabled' ?> required>
+                        <?php if ($hasActivities): ?>
+                            <?php foreach ($activities as $activity): ?>
+                                <option value="<?= $activity['id'] ?>">
+                                    <?= sanitize($activity['name']) ?> — <?= format_date($activity['date'], 'M d') ?>
+                                </option>
+                            <?php endforeach; ?>
+                        <?php else: ?>
+                            <option value="">No activities</option>
+                        <?php endif; ?>
+                    </select>
+                </div>
+                <div>
+                    <label class="form-label text-white">QR Token / Student ID</label>
+                    <input type="text" name="qr_token" class="form-control form-control-lg"
+                           placeholder="Scan or type token" autocomplete="off" <?= $hasActivities ? '' : 'disabled' ?> required>
+                </div>
+                <div>
+                    <label class="form-label text-white">Notes (optional)</label>
+                    <textarea name="notes" class="form-control" rows="2" placeholder="Remarks for this scan"></textarea>
+                </div>
+                <div class="d-flex gap-2 flex-wrap">
+                    <button type="submit" class="btn btn-light btn-lg flex-grow-1" <?= $hasActivities ? '' : 'disabled' ?>>Record Attendance</button>
+                    <button type="button" class="btn btn-outline-light btn-lg flex-grow-1" data-scan-start <?= $hasActivities ? '' : 'disabled' ?>>
+                        Start Camera Scan
+                    </button>
+                </div>
+                <p class="text-white-50 small mb-0">
+                    The scanner auto-selects the best camera mode and falls back to a built-in detector if needed.
+                </p>
+            </form>
+            <div class="mt-4">
+                <p id="scan-status" class="fw-semibold mb-3"></p>
+                <div id="camera-viewer" class="camera-viewer bg-white rounded shadow-sm">
+                    <div class="text-center text-muted small">Camera idle</div>
+                </div>
+            </div>
+        </div>
+    </div>
+    <div class="col-lg-7">
+        <div class="card shadow-sm h-100">
+            <div class="card-header bg-white d-flex justify-content-between align-items-center">
+                <h5 class="mb-0">Today’s Attendance</h5>
+                <span class="badge bg-primary-subtle text-primary"><?= count($todayAttendance) ?> captured</span>
+            </div>
+            <div class="card-body">
+                <div id="scan-result" class="mb-4"></div>
+                <?php if (!$todayAttendance): ?>
+                    <p class="text-muted text-center mb-0">No scans recorded today.</p>
+                <?php else: ?>
+                    <div class="table-responsive">
+                        <table class="table align-middle">
+                            <thead>
+                            <tr>
+                                <th>Student</th>
+                                <th>Activity</th>
+                                <th>Time In</th>
+                                <th>Time Out</th>
+                                <th>Status</th>
+                            </tr>
+                            </thead>
+                            <tbody>
+                            <?php foreach ($todayAttendance as $row): ?>
+                                <tr>
+                                    <td>
+                                        <strong><?= sanitize($row['full_name']) ?></strong><br>
+                                        <span class="text-muted-sm"><?= sanitize($row['student_id']) ?></span>
+                                    </td>
+                                    <td><?= sanitize($row['activity_name']) ?></td>
+                                    <td><?= format_datetime($row['time_in'], 'h:i A') ?></td>
+                                    <td><?= format_datetime($row['time_out'], 'h:i A') ?></td>
+                                    <td>
+                                        <span class="badge bg-success-subtle text-success badge-status">
+                                            <?= strtoupper(sanitize($row['status'])) ?>
+                                        </span>
+                                    </td>
+                                </tr>
+                            <?php endforeach; ?>
+                            </tbody>
+                        </table>
+                    </div>
+                <?php endif; ?>
+            </div>
+        </div>
+    </div>
+</div>
+<?php
+render_footer([
+    'extra_js' => [
+        'https://unpkg.com/html5-qrcode@2.3.10/html5-qrcode.min.js',
+    ],
+]);
diff --git a/src/admin/courses.php b/src/admin/courses.php
new file mode 100644
index 0000000..c0911a0
--- /dev/null
+++ b/src/admin/courses.php
@@ -0,0 +1,223 @@
+<?php
+require __DIR__ . '/../includes/bootstrap.php';
+require_login();
+
+$pdo = db();
+$errors = [];
+$departments = $pdo->query('SELECT id, name FROM departments WHERE status = 1 ORDER BY name')->fetchAll();
+
+if (is_post()) {
+    if (!validate_csrf_token($_POST['csrf_token'] ?? null)) {
+        $errors[] = 'Invalid session token.';
+    } else {
+        $action = $_POST['action'] ?? 'create';
+
+        if ($action === 'delete') {
+            $id = (int) ($_POST['id'] ?? 0);
+            $pdo->prepare('DELETE FROM courses WHERE id = :id')->execute(['id' => $id]);
+            add_flash('success', 'Course removed.');
+            redirect('admin/courses.php');
+        }
+
+        $payload = [
+            'code' => strtoupper(trim($_POST['code'] ?? '')),
+            'name' => trim($_POST['name'] ?? ''),
+            'department_id' => (int) ($_POST['department_id'] ?? 0),
+            'description' => trim($_POST['description'] ?? ''),
+            'status' => (int) ($_POST['status'] ?? 1),
+        ];
+
+        if ($payload['code'] === '' || $payload['name'] === '') {
+            $errors[] = 'Course code and name are required.';
+        }
+
+        if (!$errors) {
+            if ($action === 'update') {
+                $payload['id'] = (int) ($_POST['id'] ?? 0);
+                $stmt = $pdo->prepare(
+                    'UPDATE courses SET code = :code, name = :name, department_id = :department_id,
+                        description = :description, status = :status WHERE id = :id'
+                );
+                $stmt->execute($payload);
+                add_flash('success', 'Course updated.');
+            } else {
+                $stmt = $pdo->prepare(
+                    'INSERT INTO courses (code, name, department_id, description, status)
+                     VALUES (:code, :name, :department_id, :description, :status)'
+                );
+                $stmt->execute($payload);
+                add_flash('success', 'Course added.');
+            }
+
+            redirect('admin/courses.php');
+        }
+    }
+}
+
+$courses = $pdo->query(
+    'SELECT c.*, d.name AS department_name
+     FROM courses c
+     LEFT JOIN departments d ON c.department_id = d.id
+     ORDER BY c.name ASC'
+)->fetchAll();
+
+render_header('Courses', ['active' => 'courses']);
+?>
+<div class="card shadow-sm">
+    <div class="card-header bg-white d-flex justify-content-between align-items-center">
+        <div>
+            <h5 class="mb-0">Courses</h5>
+            <small class="text-muted"><?= count($courses) ?> total</small>
+        </div>
+        <div class="d-flex gap-2 align-items-center">
+            <?php if ($errors): ?>
+                <span class="text-danger small"><?= sanitize(implode(' ', $errors)) ?></span>
+            <?php endif; ?>
+            <button class="btn btn-primary" data-bs-toggle="modal" data-bs-target="#courseModal" data-mode="create">
+                Add Course
+            </button>
+        </div>
+    </div>
+    <div class="card-body">
+        <?php if (!$courses): ?>
+            <p class="text-muted mb-0 text-center">No courses yet.</p>
+        <?php else: ?>
+            <div class="table-responsive">
+                <table class="table align-middle">
+                    <thead>
+                    <tr>
+                        <th>Code</th>
+                        <th>Name</th>
+                        <th>Department</th>
+                        <th>Status</th>
+                        <th class="text-end">Actions</th>
+                    </tr>
+                    </thead>
+                    <tbody>
+                    <?php foreach ($courses as $course): ?>
+                        <?php
+                        $recordPayload = encode_record([
+                            'id' => (int) $course['id'],
+                            'code' => $course['code'],
+                            'name' => $course['name'],
+                            'department_id' => (int) ($course['department_id'] ?? 0),
+                            'description' => $course['description'],
+                            'status' => (int) $course['status'],
+                        ]);
+                        ?>
+                        <tr>
+                            <td><code><?= sanitize($course['code']) ?></code></td>
+                            <td><?= sanitize($course['name']) ?></td>
+                            <td><?= sanitize($course['department_name'] ?? '—') ?></td>
+                            <td>
+                                <span class="badge <?= $course['status'] ? 'bg-success-subtle text-success' : 'bg-secondary' ?>">
+                                    <?= $course['status'] ? 'Active' : 'Inactive' ?>
+                                </span>
+                            </td>
+                            <td class="text-end">
+                                <button class="btn btn-sm btn-outline-primary"
+                                        data-bs-toggle="modal"
+                                        data-bs-target="#courseModal"
+                                        data-mode="edit"
+                                        data-record="<?= sanitize($recordPayload) ?>">
+                                    Edit
+                                </button>
+                                <button class="btn btn-sm btn-outline-danger"
+                                        data-bs-toggle="modal"
+                                        data-bs-target="#deleteCourseModal"
+                                        data-record-name="<?= sanitize($course['name']) ?>"
+                                        data-record-ref="<?= sanitize($course['code']) ?>"
+                                        data-id="<?= (int) $course['id'] ?>">
+                                    Delete
+                                </button>
+                            </td>
+                        </tr>
+                    <?php endforeach; ?>
+                    </tbody>
+                </table>
+            </div>
+        <?php endif; ?>
+    </div>
+</div>
+
+<!-- Course modal -->
+<div class="modal fade" id="courseModal" tabindex="-1" aria-hidden="true"
+     data-create-title="Add Course" data-edit-title="Edit Course"
+     data-create-submit="Add Course" data-edit-submit="Save Changes">
+    <div class="modal-dialog modal-lg modal-dialog-scrollable">
+        <div class="modal-content">
+            <form method="post" class="needs-validation" novalidate>
+                <div class="modal-header">
+                    <h5 class="modal-title" data-modal-title>Add Course</h5>
+                    <button type="button" class="btn-close" data-bs-dismiss="modal" aria-label="Close"></button>
+                </div>
+                <div class="modal-body">
+                    <input type="hidden" name="csrf_token" value="<?= sanitize(ensure_csrf_token()) ?>">
+                    <input type="hidden" name="action" value="create">
+                    <input type="hidden" name="id" value="">
+                    <div class="row g-3">
+                        <div class="col-md-6">
+                            <label class="form-label">Code</label>
+                            <input type="text" name="code" class="form-control text-uppercase" required>
+                        </div>
+                        <div class="col-md-6">
+                            <label class="form-label">Name</label>
+                            <input type="text" name="name" class="form-control" required>
+                        </div>
+                        <div class="col-12">
+                            <label class="form-label">Department</label>
+                            <select name="department_id" class="form-select">
+                                <?php foreach ($departments as $department): ?>
+                                    <option value="<?= $department['id'] ?>"><?= sanitize($department['name']) ?></option>
+                                <?php endforeach; ?>
+                            </select>
+                        </div>
+                        <div class="col-12">
+                            <label class="form-label">Description</label>
+                            <textarea name="description" class="form-control" rows="2"></textarea>
+                        </div>
+                        <div class="col-12">
+                            <label class="form-label">Status</label>
+                            <select name="status" class="form-select">
+                                <option value="1" selected>Active</option>
+                                <option value="0">Inactive</option>
+                            </select>
+                        </div>
+                    </div>
+                </div>
+                <div class="modal-footer">
+                    <button type="button" class="btn btn-outline-secondary" data-bs-dismiss="modal">Cancel</button>
+                    <button type="submit" class="btn btn-primary">Add Course</button>
+                </div>
+            </form>
+        </div>
+    </div>
+</div>
+
+<!-- Delete modal -->
+<div class="modal fade" id="deleteCourseModal" tabindex="-1" aria-hidden="true">
+    <div class="modal-dialog">
+        <div class="modal-content">
+            <form method="post">
+                <div class="modal-header">
+                    <h5 class="modal-title">Delete Course</h5>
+                    <button type="button" class="btn-close" data-bs-dismiss="modal" aria-label="Close"></button>
+                </div>
+                <div class="modal-body">
+                    <input type="hidden" name="csrf_token" value="<?= sanitize(ensure_csrf_token()) ?>">
+                    <input type="hidden" name="action" value="delete">
+                    <input type="hidden" name="id" value="">
+                    <p class="mb-1" data-delete-message>Delete this course?</p>
+                    <p class="fw-semibold mb-0" data-delete-name>Course Name</p>
+                    <small class="text-muted" data-delete-id data-label="Code">Code: —</small>
+                </div>
+                <div class="modal-footer">
+                    <button type="button" class="btn btn-outline-secondary" data-bs-dismiss="modal">Cancel</button>
+                    <button type="submit" class="btn btn-danger">Delete</button>
+                </div>
+            </form>
+        </div>
+    </div>
+</div>
+<?php
+render_footer();
diff --git a/src/admin/dashboard.php b/src/admin/dashboard.php
new file mode 100644
index 0000000..636004d
--- /dev/null
+++ b/src/admin/dashboard.php
@@ -0,0 +1,148 @@
+<?php
+require __DIR__ . '/../includes/bootstrap.php';
+require_login();
+
+$pdo = db();
+
+$stats = [
+    'students' => (int) $pdo->query('SELECT COUNT(*) FROM students')->fetchColumn(),
+    'activities' => (int) $pdo->query('SELECT COUNT(*) FROM activities WHERE status = 1')->fetchColumn(),
+    'attendance_today' => (int) $pdo->query('SELECT COUNT(*) FROM attendance WHERE DATE(time_in) = CURDATE()')->fetchColumn(),
+    'users' => (int) $pdo->query('SELECT COUNT(*) FROM users WHERE status = 1')->fetchColumn(),
+];
+
+$upcomingActivities = $pdo->query(
+    'SELECT a.*, d.name AS department_name, c.name AS course_name 
+     FROM activities a
+     LEFT JOIN departments d ON a.department_id = d.id
+     LEFT JOIN courses c ON a.course_id = c.id
+     WHERE a.date >= CURDATE()
+     ORDER BY a.date ASC, a.time_in ASC
+     LIMIT 5'
+)->fetchAll();
+
+$recentAttendance = $pdo->query(
+    'SELECT att.*, s.full_name, act.name AS activity_name
+     FROM attendance att
+     INNER JOIN students s ON att.student_id = s.id
+     INNER JOIN activities act ON att.activity_id = act.id
+     ORDER BY att.updated_at DESC
+     LIMIT 10'
+)->fetchAll();
+
+render_header('Dashboard', ['active' => 'dashboard']);
+?>
+<div class="row g-4">
+    <div class="col-md-3">
+        <div class="stat-card">
+            <h6>Registered Students</h6>
+            <p class="stat-value"><?= $stats['students'] ?></p>
+        </div>
+    </div>
+    <div class="col-md-3">
+        <div class="stat-card">
+            <h6>Active Activities</h6>
+            <p class="stat-value"><?= $stats['activities'] ?></p>
+        </div>
+    </div>
+    <div class="col-md-3">
+        <div class="stat-card">
+            <h6>Attendance (Today)</h6>
+            <p class="stat-value"><?= $stats['attendance_today'] ?></p>
+        </div>
+    </div>
+    <div class="col-md-3">
+        <div class="stat-card">
+            <h6>Active Users</h6>
+            <p class="stat-value"><?= $stats['users'] ?></p>
+        </div>
+    </div>
+</div>
+
+<div class="row mt-4 g-4">
+    <div class="col-lg-6">
+        <div class="card shadow-sm">
+            <div class="card-header bg-white">
+                <div class="d-flex justify-content-between align-items-center">
+                    <h5 class="mb-0">Upcoming Activities</h5>
+                    <a href="<?= url_for('admin/activities.php') ?>" class="btn btn-sm btn-outline-primary">Manage</a>
+                </div>
+            </div>
+            <div class="card-body">
+                <?php if (!$upcomingActivities): ?>
+                    <p class="text-muted text-center mb-0">No scheduled activities yet.</p>
+                <?php else: ?>
+                    <div class="list-group list-group-flush">
+                        <?php foreach ($upcomingActivities as $activity): ?>
+                            <div class="list-group-item">
+                                <div class="d-flex justify-content-between">
+                                    <div>
+                                        <h6 class="mb-1"><?= sanitize($activity['name']) ?></h6>
+                                        <div class="text-muted-sm">
+                                            <?= format_date($activity['date']) ?> •
+                                            <?= sanitize(substr($activity['time_in'], 0, 5)) ?>
+                                            —
+                                            <?= sanitize(substr($activity['time_out'], 0, 5)) ?>
+                                        </div>
+                                        <?php if ($activity['required_students'] !== 'all'): ?>
+                                            <span class="chip mt-2">
+                                                <?= $activity['required_students'] === 'specific_course'
+                                                    ? sanitize($activity['course_name'] ?? 'Course Restricted')
+                                                    : sanitize($activity['department_name'] ?? 'Department Restricted') ?>
+                                            </span>
+                                        <?php endif; ?>
+                                    </div>
+                                    <span class="badge rounded-pill bg-primary-subtle text-primary align-self-start">
+                                        <?= sanitize($activity['location']) ?>
+                                    </span>
+                                </div>
+                            </div>
+                        <?php endforeach; ?>
+                    </div>
+                <?php endif; ?>
+            </div>
+        </div>
+    </div>
+
+    <div class="col-lg-6">
+        <div class="card shadow-sm">
+            <div class="card-header bg-white">
+                <h5 class="mb-0">Latest Attendance Logs</h5>
+            </div>
+            <div class="card-body">
+                <?php if (!$recentAttendance): ?>
+                    <p class="text-muted text-center mb-0">No attendance captured yet.</p>
+                <?php else: ?>
+                    <div class="table-responsive">
+                        <table class="table align-middle mb-0">
+                            <thead>
+                            <tr>
+                                <th>Student</th>
+                                <th>Activity</th>
+                                <th>Status</th>
+                                <th>Recorded</th>
+                            </tr>
+                            </thead>
+                            <tbody>
+                            <?php foreach ($recentAttendance as $row): ?>
+                                <tr>
+                                    <td><?= sanitize($row['full_name']) ?></td>
+                                    <td><?= sanitize($row['activity_name']) ?></td>
+                                    <td>
+                                        <span class="badge bg-success-subtle text-success badge-status">
+                                            <?= strtoupper(sanitize($row['status'])) ?>
+                                        </span>
+                                    </td>
+                                    <td><?= format_datetime($row['updated_at']) ?></td>
+                                </tr>
+                            <?php endforeach; ?>
+                            </tbody>
+                        </table>
+                    </div>
+                <?php endif; ?>
+            </div>
+        </div>
+    </div>
+</div>
+<?php
+render_footer();
diff --git a/src/admin/departments.php b/src/admin/departments.php
new file mode 100644
index 0000000..f1357fa
--- /dev/null
+++ b/src/admin/departments.php
@@ -0,0 +1,223 @@
+<?php
+require __DIR__ . '/../includes/bootstrap.php';
+require_login();
+
+$pdo = db();
+$errors = [];
+$schools = $pdo->query('SELECT id, name FROM schools WHERE status = 1 ORDER BY name')->fetchAll();
+
+if (is_post()) {
+    if (!validate_csrf_token($_POST['csrf_token'] ?? null)) {
+        $errors[] = 'Invalid session token.';
+    } else {
+        $action = $_POST['action'] ?? 'create';
+
+        if ($action === 'delete') {
+            $id = (int) ($_POST['id'] ?? 0);
+            $pdo->prepare('DELETE FROM departments WHERE id = :id')->execute(['id' => $id]);
+            add_flash('success', 'Department removed.');
+            redirect('admin/departments.php');
+        }
+
+        $payload = [
+            'code' => strtoupper(trim($_POST['code'] ?? '')),
+            'name' => trim($_POST['name'] ?? ''),
+            'school_id' => (int) ($_POST['school_id'] ?? 0),
+            'description' => trim($_POST['description'] ?? ''),
+            'status' => (int) ($_POST['status'] ?? 1),
+        ];
+
+        if ($payload['code'] === '' || $payload['name'] === '') {
+            $errors[] = 'Department code and name are required.';
+        }
+
+        if (!$errors) {
+            if ($action === 'update') {
+                $payload['id'] = (int) ($_POST['id'] ?? 0);
+                $stmt = $pdo->prepare(
+                    'UPDATE departments SET code = :code, name = :name, school_id = :school_id,
+                        description = :description, status = :status WHERE id = :id'
+                );
+                $stmt->execute($payload);
+                add_flash('success', 'Department updated.');
+            } else {
+                $stmt = $pdo->prepare(
+                    'INSERT INTO departments (code, name, school_id, description, status)
+                     VALUES (:code, :name, :school_id, :description, :status)'
+                );
+                $stmt->execute($payload);
+                add_flash('success', 'Department added.');
+            }
+
+            redirect('admin/departments.php');
+        }
+    }
+}
+
+$departments = $pdo->query(
+    'SELECT d.*, s.name AS school_name
+     FROM departments d
+     LEFT JOIN schools s ON d.school_id = s.id
+     ORDER BY d.name ASC'
+)->fetchAll();
+
+render_header('Departments', ['active' => 'departments']);
+?>
+<div class="card shadow-sm">
+    <div class="card-header bg-white d-flex justify-content-between align-items-center">
+        <div>
+            <h5 class="mb-0">Departments</h5>
+            <small class="text-muted"><?= count($departments) ?> total</small>
+        </div>
+        <div class="d-flex gap-2 align-items-center">
+            <?php if ($errors): ?>
+                <span class="text-danger small"><?= sanitize(implode(' ', $errors)) ?></span>
+            <?php endif; ?>
+            <button class="btn btn-primary" data-bs-toggle="modal" data-bs-target="#departmentModal" data-mode="create">
+                Add Department
+            </button>
+        </div>
+    </div>
+    <div class="card-body">
+        <?php if (!$departments): ?>
+            <p class="text-muted mb-0 text-center">No departments yet.</p>
+        <?php else: ?>
+            <div class="table-responsive">
+                <table class="table align-middle">
+                    <thead>
+                    <tr>
+                        <th>Code</th>
+                        <th>Name</th>
+                        <th>School</th>
+                        <th>Status</th>
+                        <th class="text-end">Actions</th>
+                    </tr>
+                    </thead>
+                    <tbody>
+                    <?php foreach ($departments as $department): ?>
+                        <?php
+                        $recordPayload = encode_record([
+                            'id' => (int) $department['id'],
+                            'code' => $department['code'],
+                            'name' => $department['name'],
+                            'school_id' => (int) ($department['school_id'] ?? 0),
+                            'description' => $department['description'],
+                            'status' => (int) $department['status'],
+                        ]);
+                        ?>
+                        <tr>
+                            <td><code><?= sanitize($department['code']) ?></code></td>
+                            <td><?= sanitize($department['name']) ?></td>
+                            <td><?= sanitize($department['school_name'] ?? '—') ?></td>
+                            <td>
+                                <span class="badge <?= $department['status'] ? 'bg-success-subtle text-success' : 'bg-secondary' ?>">
+                                    <?= $department['status'] ? 'Active' : 'Inactive' ?>
+                                </span>
+                            </td>
+                            <td class="text-end">
+                                <button class="btn btn-sm btn-outline-primary"
+                                        data-bs-toggle="modal"
+                                        data-bs-target="#departmentModal"
+                                        data-mode="edit"
+                                        data-record="<?= sanitize($recordPayload) ?>">
+                                    Edit
+                                </button>
+                                <button class="btn btn-sm btn-outline-danger"
+                                        data-bs-toggle="modal"
+                                        data-bs-target="#deleteDepartmentModal"
+                                        data-record-name="<?= sanitize($department['name']) ?>"
+                                        data-record-ref="<?= sanitize($department['code']) ?>"
+                                        data-id="<?= (int) $department['id'] ?>">
+                                    Delete
+                                </button>
+                            </td>
+                        </tr>
+                    <?php endforeach; ?>
+                    </tbody>
+                </table>
+            </div>
+        <?php endif; ?>
+    </div>
+</div>
+
+<!-- Department modal -->
+<div class="modal fade" id="departmentModal" tabindex="-1" aria-hidden="true"
+     data-create-title="Add Department" data-edit-title="Edit Department"
+     data-create-submit="Add Department" data-edit-submit="Save Changes">
+    <div class="modal-dialog modal-lg modal-dialog-scrollable">
+        <div class="modal-content">
+            <form method="post" class="needs-validation" novalidate>
+                <div class="modal-header">
+                    <h5 class="modal-title" data-modal-title>Add Department</h5>
+                    <button type="button" class="btn-close" data-bs-dismiss="modal" aria-label="Close"></button>
+                </div>
+                <div class="modal-body">
+                    <input type="hidden" name="csrf_token" value="<?= sanitize(ensure_csrf_token()) ?>">
+                    <input type="hidden" name="action" value="create">
+                    <input type="hidden" name="id" value="">
+                    <div class="row g-3">
+                        <div class="col-md-6">
+                            <label class="form-label">Code</label>
+                            <input type="text" name="code" class="form-control text-uppercase" required>
+                        </div>
+                        <div class="col-md-6">
+                            <label class="form-label">Name</label>
+                            <input type="text" name="name" class="form-control" required>
+                        </div>
+                        <div class="col-12">
+                            <label class="form-label">School</label>
+                            <select name="school_id" class="form-select">
+                                <?php foreach ($schools as $school): ?>
+                                    <option value="<?= $school['id'] ?>"><?= sanitize($school['name']) ?></option>
+                                <?php endforeach; ?>
+                            </select>
+                        </div>
+                        <div class="col-12">
+                            <label class="form-label">Description</label>
+                            <textarea name="description" class="form-control" rows="2"></textarea>
+                        </div>
+                        <div class="col-12">
+                            <label class="form-label">Status</label>
+                            <select name="status" class="form-select">
+                                <option value="1" selected>Active</option>
+                                <option value="0">Inactive</option>
+                            </select>
+                        </div>
+                    </div>
+                </div>
+                <div class="modal-footer">
+                    <button type="button" class="btn btn-outline-secondary" data-bs-dismiss="modal">Cancel</button>
+                    <button type="submit" class="btn btn-primary">Add Department</button>
+                </div>
+            </form>
+        </div>
+    </div>
+</div>
+
+<!-- Delete modal -->
+<div class="modal fade" id="deleteDepartmentModal" tabindex="-1" aria-hidden="true">
+    <div class="modal-dialog">
+        <div class="modal-content">
+            <form method="post">
+                <div class="modal-header">
+                    <h5 class="modal-title">Delete Department</h5>
+                    <button type="button" class="btn-close" data-bs-dismiss="modal" aria-label="Close"></button>
+                </div>
+                <div class="modal-body">
+                    <input type="hidden" name="csrf_token" value="<?= sanitize(ensure_csrf_token()) ?>">
+                    <input type="hidden" name="action" value="delete">
+                    <input type="hidden" name="id" value="">
+                    <p class="mb-1" data-delete-message>Delete this department?</p>
+                    <p class="fw-semibold mb-0" data-delete-name>Department Name</p>
+                    <small class="text-muted" data-delete-id data-label="Code">Code: —</small>
+                </div>
+                <div class="modal-footer">
+                    <button type="button" class="btn btn-outline-secondary" data-bs-dismiss="modal">Cancel</button>
+                    <button type="submit" class="btn btn-danger">Delete</button>
+                </div>
+            </form>
+        </div>
+    </div>
+</div>
+<?php
+render_footer();
diff --git a/src/admin/reports.php b/src/admin/reports.php
new file mode 100644
index 0000000..28a9582
--- /dev/null
+++ b/src/admin/reports.php
@@ -0,0 +1,146 @@
+<?php
+require __DIR__ . '/../includes/bootstrap.php';
+require_login();
+
+$pdo = db();
+$activities = $pdo->query('SELECT id, name FROM activities ORDER BY date DESC')->fetchAll();
+
+$filters = [
+    'start_date' => $_GET['start_date'] ?? date('Y-m-01'),
+    'end_date' => $_GET['end_date'] ?? date('Y-m-d'),
+    'activity_id' => $_GET['activity_id'] ?? '',
+    'status' => $_GET['status'] ?? '',
+];
+
+$conditions = [];
+$params = [];
+
+if ($filters['start_date']) {
+    $conditions[] = 'DATE(att.time_in) >= :start_date';
+    $params['start_date'] = $filters['start_date'];
+}
+
+if ($filters['end_date']) {
+    $conditions[] = 'DATE(att.time_in) <= :end_date';
+    $params['end_date'] = $filters['end_date'];
+}
+
+if ($filters['activity_id']) {
+    $conditions[] = 'att.activity_id = :activity_id';
+    $params['activity_id'] = (int) $filters['activity_id'];
+}
+
+if ($filters['status']) {
+    $conditions[] = 'att.status = :status';
+    $params['status'] = $filters['status'];
+}
+
+$where = $conditions ? 'WHERE ' . implode(' AND ', $conditions) : '';
+$stmt = $pdo->prepare(
+    "SELECT att.*, s.full_name, s.student_id, act.name AS activity_name
+     FROM attendance att
+     INNER JOIN students s ON att.student_id = s.id
+     INNER JOIN activities act ON att.activity_id = act.id
+     $where
+     ORDER BY att.time_in DESC"
+);
+$stmt->execute($params);
+$records = $stmt->fetchAll();
+
+render_header('Reports', ['active' => 'reports']);
+?>
+<div class="card shadow-sm mb-4">
+    <div class="card-header bg-white">
+        <h5 class="mb-0">Attendance Filters</h5>
+    </div>
+    <div class="card-body">
+        <form method="get" class="row gy-3">
+            <div class="col-md-3">
+                <label class="form-label">Start Date</label>
+                <input type="date" name="start_date" class="form-control"
+                       value="<?= sanitize($filters['start_date']) ?>">
+            </div>
+            <div class="col-md-3">
+                <label class="form-label">End Date</label>
+                <input type="date" name="end_date" class="form-control"
+                       value="<?= sanitize($filters['end_date']) ?>">
+            </div>
+            <div class="col-md-3">
+                <label class="form-label">Activity</label>
+                <select name="activity_id" class="form-select">
+                    <option value="">All activities</option>
+                    <?php foreach ($activities as $activity): ?>
+                        <option value="<?= $activity['id'] ?>" <?= selected($filters['activity_id'], $activity['id']) ?>>
+                            <?= sanitize($activity['name']) ?>
+                        </option>
+                    <?php endforeach; ?>
+                </select>
+            </div>
+                <div class="col-md-2">
+                <label class="form-label">Status</label>
+                <select name="status" class="form-select">
+                    <option value="">Any status</option>
+                    <option value="present" <?= selected($filters['status'], 'present') ?>>Present</option>
+                    <option value="late" <?= selected($filters['status'], 'late') ?>>Late</option>
+                    <option value="absent" <?= selected($filters['status'], 'absent') ?>>Absent</option>
+                    <option value="excused" <?= selected($filters['status'], 'excused') ?>>Excused</option>
+                </select>
+            </div>
+            <div class="col-md-1 d-flex align-items-end">
+                <button type="submit" class="btn btn-primary w-100">Apply</button>
+            </div>
+        </form>
+    </div>
+</div>
+
+<div class="card shadow-sm">
+    <div class="card-header bg-white d-flex justify-content-between align-items-center">
+        <h5 class="mb-0">Attendance Records</h5>
+        <a href="<?= url_for('api/manual_entry.php?'.http_build_query($filters)) ?>" class="btn btn-sm btn-outline-secondary" target="_blank">
+            Export JSON
+        </a>
+    </div>
+    <div class="card-body">
+        <?php if (!$records): ?>
+            <p class="text-muted text-center mb-0">No records match the filters.</p>
+        <?php else: ?>
+            <div class="table-responsive">
+                <table class="table align-middle">
+                    <thead>
+                    <tr>
+                        <th>Student</th>
+                        <th>Activity</th>
+                        <th>Status</th>
+                        <th>In</th>
+                        <th>Out</th>
+                        <th>Notes</th>
+                    </tr>
+                    </thead>
+                    <tbody>
+                    <?php foreach ($records as $row): ?>
+                        <tr>
+                            <td>
+                                <strong><?= sanitize($row['full_name']) ?></strong><br>
+                                <span class="text-muted-sm"><?= sanitize($row['student_id']) ?></span>
+                            </td>
+                            <td><?= sanitize($row['activity_name']) ?></td>
+                            <td>
+                                <span class="badge <?= $row['status'] === 'present'
+                                    ? 'bg-success-subtle text-success'
+                                    : 'bg-warning-subtle text-warning' ?>">
+                                    <?= strtoupper(sanitize($row['status'])) ?>
+                                </span>
+                            </td>
+                            <td><?= format_datetime($row['time_in']) ?></td>
+                            <td><?= format_datetime($row['time_out']) ?></td>
+                            <td><?= sanitize($row['notes'] ?? '') ?></td>
+                        </tr>
+                    <?php endforeach; ?>
+                    </tbody>
+                </table>
+            </div>
+        <?php endif; ?>
+    </div>
+</div>
+<?php
+render_footer();
diff --git a/src/admin/settings.php b/src/admin/settings.php
new file mode 100644
index 0000000..5f36f6b
--- /dev/null
+++ b/src/admin/settings.php
@@ -0,0 +1,163 @@
+<?php
+require __DIR__ . '/../includes/bootstrap.php';
+require_login();
+require_admin();
+
+$pdo = db();
+$errors = [];
+$userId = current_user()['id'];
+
+if (is_post()) {
+    if (!validate_csrf_token($_POST['csrf_token'] ?? null)) {
+        $errors[] = 'Invalid session token.';
+    } else {
+        $action = $_POST['action'] ?? 'save';
+
+        if ($action === 'save') {
+            $settings = $_POST['settings'] ?? [];
+            $stmt = $pdo->prepare(
+                'INSERT INTO system_settings (setting_key, setting_value, description, updated_by)
+                 VALUES (:key, :value, :description, :updated_by)
+                 ON DUPLICATE KEY UPDATE setting_value = VALUES(setting_value), description = VALUES(description),
+                                         updated_by = VALUES(updated_by), updated_at = CURRENT_TIMESTAMP'
+            );
+            foreach ($settings as $key => $data) {
+                $stmt->execute([
+                    'key' => $key,
+                    'value' => $data['value'] ?? '',
+                    'description' => $data['description'] ?? '',
+                    'updated_by' => $userId,
+                ]);
+            }
+            add_flash('success', 'Settings updated.');
+            redirect('admin/settings.php');
+        }
+
+        if ($action === 'create') {
+            $key = strtolower(trim($_POST['new_key'] ?? ''));
+            $value = trim($_POST['new_value'] ?? '');
+            $description = trim($_POST['new_description'] ?? '');
+
+            if ($key === '') {
+                $errors[] = 'Setting key is required.';
+            } else {
+                $stmt = $pdo->prepare(
+                    'INSERT INTO system_settings (setting_key, setting_value, description, updated_by)
+                     VALUES (:key, :value, :description, :updated_by)'
+                );
+                $stmt->execute([
+                    'key' => $key,
+                    'value' => $value,
+                    'description' => $description,
+                    'updated_by' => $userId,
+                ]);
+                add_flash('success', 'Setting created.');
+                redirect('admin/settings.php');
+            }
+        }
+    }
+}
+
+$settings = $pdo->query(
+    'SELECT ss.*, u.full_name AS updated_by_name
+     FROM system_settings ss
+     LEFT JOIN users u ON ss.updated_by = u.id
+     ORDER BY ss.setting_key ASC'
+)->fetchAll();
+
+render_header('Settings', ['active' => 'settings']);
+?>
+<div class="row g-4">
+    <div class="col-lg-8">
+        <div class="card shadow-sm">
+            <div class="card-header bg-white d-flex justify-content-between align-items-center">
+                <h5 class="mb-0">System Settings</h5>
+                <form method="post" class="d-inline">
+                    <input type="hidden" name="csrf_token" value="<?= sanitize(ensure_csrf_token()) ?>">
+                    <input type="hidden" name="action" value="save">
+                    <button type="submit" class="btn btn-primary btn-sm">Save Changes</button>
+                </form>
+            </div>
+            <div class="card-body">
+                <?php if ($errors): ?>
+                    <div class="alert alert-danger">
+                        <?php foreach ($errors as $error): ?>
+                            <div><?= sanitize($error) ?></div>
+                        <?php endforeach; ?>
+                    </div>
+                <?php endif; ?>
+                <?php if (!$settings): ?>
+                    <p class="text-muted">No settings found. Use the form on the right to add one.</p>
+                <?php else: ?>
+                    <form method="post">
+                        <input type="hidden" name="csrf_token" value="<?= sanitize(ensure_csrf_token()) ?>">
+                        <input type="hidden" name="action" value="save">
+                        <div class="table-responsive">
+                            <table class="table align-middle">
+                                <thead>
+                                <tr>
+                                    <th>Key</th>
+                                    <th>Value</th>
+                                    <th>Description</th>
+                                    <th>Updated</th>
+                                </tr>
+                                </thead>
+                                <tbody>
+                                <?php foreach ($settings as $setting): ?>
+                                    <tr>
+                                        <td class="text-uppercase fw-semibold"><?= sanitize($setting['setting_key']) ?></td>
+                                        <td style="width: 25%;">
+                                            <input type="text" name="settings[<?= sanitize($setting['setting_key']) ?>][value]"
+                                                   class="form-control" value="<?= sanitize($setting['setting_value']) ?>">
+                                        </td>
+                                        <td>
+                                            <input type="text" name="settings[<?= sanitize($setting['setting_key']) ?>][description]"
+                                                   class="form-control" value="<?= sanitize($setting['description']) ?>">
+                                        </td>
+                                        <td class="text-muted-sm">
+                                            <?= format_datetime($setting['updated_at']) ?><br>
+                                            <?= sanitize($setting['updated_by_name'] ?? 'System') ?>
+                                        </td>
+                                    </tr>
+                                <?php endforeach; ?>
+                                </tbody>
+                            </table>
+                        </div>
+                        <div class="text-end">
+                            <button type="submit" class="btn btn-primary">Save Changes</button>
+                        </div>
+                    </form>
+                <?php endif; ?>
+            </div>
+        </div>
+    </div>
+    <div class="col-lg-4">
+        <div class="card shadow-sm h-100">
+            <div class="card-header bg-white">
+                <h5 class="mb-0">Add Setting</h5>
+            </div>
+            <div class="card-body">
+                <form method="post" class="v-stack gap-3">
+                    <input type="hidden" name="csrf_token" value="<?= sanitize(ensure_csrf_token()) ?>">
+                    <input type="hidden" name="action" value="create">
+                    <div>
+                        <label class="form-label">Key</label>
+                        <input type="text" name="new_key" class="form-control text-lowercase"
+                               placeholder="attendance.cutoff" required>
+                    </div>
+                    <div>
+                        <label class="form-label">Value</label>
+                        <input type="text" name="new_value" class="form-control" placeholder="Value">
+                    </div>
+                    <div>
+                        <label class="form-label">Description</label>
+                        <textarea name="new_description" class="form-control" rows="2"></textarea>
+                    </div>
+                    <button type="submit" class="btn btn-outline-primary">Create Setting</button>
+                </form>
+            </div>
+        </div>
+    </div>
+</div>
+<?php
+render_footer();
diff --git a/src/admin/students.php b/src/admin/students.php
new file mode 100644
index 0000000..d6df58d
--- /dev/null
+++ b/src/admin/students.php
@@ -0,0 +1,334 @@
+<?php
+require __DIR__ . '/../includes/bootstrap.php';
+require_login();
+
+$pdo = db();
+$errors = [];
+
+$courses = $pdo->query('SELECT id, code, name FROM courses WHERE status = 1 ORDER BY name')->fetchAll();
+$departments = $pdo->query('SELECT id, code, name FROM departments WHERE status = 1 ORDER BY name')->fetchAll();
+$genders = $pdo->query('SELECT id, name FROM genders ORDER BY id')->fetchAll();
+$schools = $pdo->query('SELECT id, name FROM schools WHERE status = 1 ORDER BY name')->fetchAll();
+
+if (is_post()) {
+    if (!validate_csrf_token($_POST['csrf_token'] ?? null)) {
+        $errors[] = 'Invalid session token.';
+    } else {
+        $action = $_POST['action'] ?? 'create';
+
+        if ($action === 'delete') {
+            $id = (int) ($_POST['id'] ?? 0);
+            $pdo->prepare('DELETE FROM students WHERE id = :id')->execute(['id' => $id]);
+            add_flash('success', 'Student removed.');
+            redirect('admin/students.php');
+        }
+
+        $payload = [
+            'student_id' => trim($_POST['student_id'] ?? ''),
+            'full_name' => trim($_POST['full_name'] ?? ''),
+            'gender_id' => (int) ($_POST['gender_id'] ?? 0),
+            'year_level' => (int) ($_POST['year_level'] ?? 1),
+            'course_id' => (int) ($_POST['course_id'] ?? 0),
+            'department_id' => (int) ($_POST['department_id'] ?? 0),
+            'school_id' => (int) ($_POST['school_id'] ?? 0),
+            'email' => trim($_POST['email'] ?? ''),
+            'contact_number' => trim($_POST['contact_number'] ?? ''),
+            'address' => trim($_POST['address'] ?? ''),
+            'status' => (int) ($_POST['status'] ?? 1),
+        ];
+
+        if ($payload['student_id'] === '' || $payload['full_name'] === '') {
+            $errors[] = 'Student ID and full name are required.';
+        }
+
+        if (!$errors) {
+            if ($action === 'update') {
+                $payload['id'] = (int) ($_POST['id'] ?? 0);
+                $stmt = $pdo->prepare(
+                    'UPDATE students SET student_id = :student_id, full_name = :full_name, gender_id = :gender_id,
+                        year_level = :year_level, course_id = :course_id, department_id = :department_id,
+                        school_id = :school_id, email = :email, contact_number = :contact_number,
+                        address = :address, status = :status
+                     WHERE id = :id'
+                );
+                $stmt->execute($payload);
+                add_flash('success', 'Student updated.');
+            } else {
+                $qrToken = sprintf('STU-%s', strtoupper(random_token(6)));
+                $stmt = $pdo->prepare(
+                    'INSERT INTO students (student_id, full_name, gender_id, year_level, course_id, department_id, school_id,
+                        email, contact_number, address, qr_code, status)
+                     VALUES (:student_id, :full_name, :gender_id, :year_level, :course_id, :department_id, :school_id,
+                        :email, :contact_number, :address, :qr_code, :status)'
+                );
+                $stmt->execute(array_merge($payload, ['qr_code' => $qrToken]));
+                add_flash('success', 'Student registered.');
+            }
+
+            redirect('admin/students.php');
+        }
+    }
+}
+
+$pagination = paginate($pdo, 'SELECT COUNT(*) FROM students');
+$stmt = $pdo->prepare(
+    'SELECT s.*, c.name AS course_name, d.name AS department_name
+     FROM students s
+     LEFT JOIN courses c ON s.course_id = c.id
+     LEFT JOIN departments d ON s.department_id = d.id
+     ORDER BY s.full_name ASC
+     LIMIT :limit OFFSET :offset'
+);
+$stmt->bindValue(':limit', $pagination['per_page'], PDO::PARAM_INT);
+$stmt->bindValue(':offset', $pagination['offset'], PDO::PARAM_INT);
+$stmt->execute();
+$students = $stmt->fetchAll();
+
+render_header('Students', ['active' => 'students']);
+?>
+<div class="card shadow-sm">
+    <div class="card-header bg-white d-flex justify-content-between align-items-center">
+        <div>
+            <h5 class="mb-0">Student Directory</h5>
+            <small class="text-muted">Page <?= $pagination['page'] ?> of <?= $pagination['pages'] ?></small>
+        </div>
+        <div class="d-flex gap-2 align-items-center">
+            <?php if ($errors): ?>
+                <span class="text-danger small"><?= sanitize(implode(' ', $errors)) ?></span>
+            <?php endif; ?>
+            <button class="btn btn-primary" data-bs-toggle="modal" data-bs-target="#studentModal" data-mode="create">
+                Add Student
+            </button>
+        </div>
+    </div>
+    <div class="card-body">
+        <?php if (!$students): ?>
+            <p class="text-muted mb-0 text-center">No students yet.</p>
+        <?php else: ?>
+            <div class="table-responsive">
+                <table class="table align-middle">
+                    <thead>
+                    <tr>
+                        <th>Student</th>
+                        <th>Course</th>
+                        <th>Department</th>
+                        <th>QR Token</th>
+                        <th>Status</th>
+                        <th class="text-end">Actions</th>
+                    </tr>
+                    </thead>
+                    <tbody>
+                    <?php foreach ($students as $student): ?>
+                        <?php
+                        $payload = encode_record([
+                            'id' => (int) $student['id'],
+                            'student_id' => $student['student_id'],
+                            'full_name' => $student['full_name'],
+                            'gender_id' => (int) $student['gender_id'],
+                            'year_level' => (int) $student['year_level'],
+                            'course_id' => (int) $student['course_id'],
+                            'department_id' => (int) $student['department_id'],
+                            'school_id' => (int) $student['school_id'],
+                            'email' => $student['email'],
+                            'contact_number' => $student['contact_number'],
+                            'address' => $student['address'],
+                            'status' => (int) $student['status'],
+                        ]);
+                        ?>
+                        <tr>
+                            <td>
+                                <strong><?= sanitize($student['full_name']) ?></strong><br>
+                                <span class="text-muted-sm"><?= sanitize($student['student_id']) ?></span>
+                            </td>
+                            <td><?= sanitize($student['course_name'] ?? '—') ?></td>
+                            <td><?= sanitize($student['department_name'] ?? '—') ?></td>
+                            <td>
+                                <code class="d-block mb-1"><?= sanitize($student['qr_code']) ?></code>
+                                <button type="button"
+                                        class="btn btn-sm btn-link px-0"
+                                        data-bs-toggle="modal"
+                                        data-bs-target="#qrModal"
+                                        data-qr-token="<?= sanitize($student['qr_code']) ?>"
+                                        data-student-id="<?= sanitize($student['student_id']) ?>"
+                                        data-student-name="<?= sanitize($student['full_name']) ?>">
+                                    View QR
+                                </button>
+                            </td>
+                            <td>
+                                <span class="badge <?= $student['status'] ? 'bg-success-subtle text-success' : 'bg-secondary' ?>">
+                                    <?= $student['status'] ? 'Active' : 'Inactive' ?>
+                                </span>
+                            </td>
+                            <td class="text-end">
+                                <button class="btn btn-sm btn-outline-primary"
+                                        data-bs-toggle="modal"
+                                        data-bs-target="#studentModal"
+                                        data-mode="edit"
+                                        data-record="<?= sanitize($payload) ?>">
+                                    Edit
+                                </button>
+                                <button class="btn btn-sm btn-outline-danger"
+                                        data-bs-toggle="modal"
+                                        data-bs-target="#deleteStudentModal"
+                                        data-student-name="<?= sanitize($student['full_name']) ?>"
+                                        data-student-id="<?= sanitize($student['student_id']) ?>"
+                                        data-record-name="<?= sanitize($student['full_name']) ?>"
+                                        data-record-ref="<?= sanitize($student['student_id']) ?>"
+                                        data-id="<?= (int) $student['id'] ?>">
+                                    Delete
+                                </button>
+                            </td>
+                        </tr>
+                    <?php endforeach; ?>
+                    </tbody>
+                </table>
+            </div>
+            <?php render_pagination($pagination); ?>
+        <?php endif; ?>
+    </div>
+</div>
+
+<!-- Student modal -->
+<div class="modal fade" id="studentModal" tabindex="-1" aria-hidden="true"
+     data-create-title="Add Student" data-edit-title="Edit Student"
+     data-create-submit="Add Student" data-edit-submit="Save Changes">
+    <div class="modal-dialog modal-lg modal-dialog-scrollable">
+        <div class="modal-content">
+            <form method="post" class="needs-validation" novalidate>
+                <div class="modal-header">
+                    <h5 class="modal-title" data-modal-title>Add Student</h5>
+                    <button type="button" class="btn-close" data-bs-dismiss="modal" aria-label="Close"></button>
+                </div>
+                <div class="modal-body">
+                    <input type="hidden" name="csrf_token" value="<?= sanitize(ensure_csrf_token()) ?>">
+                    <input type="hidden" name="action" value="create">
+                    <input type="hidden" name="id" value="">
+                    <div class="row g-3">
+                        <div class="col-md-6">
+                            <label class="form-label">Student ID</label>
+                            <input type="text" name="student_id" class="form-control" required>
+                        </div>
+                        <div class="col-md-6">
+                            <label class="form-label">Full Name</label>
+                            <input type="text" name="full_name" class="form-control" required>
+                        </div>
+                        <div class="col-md-6">
+                            <label class="form-label">Gender</label>
+                            <select name="gender_id" class="form-select">
+                                <?php foreach ($genders as $gender): ?>
+                                    <option value="<?= $gender['id'] ?>"><?= sanitize($gender['name']) ?></option>
+                                <?php endforeach; ?>
+                            </select>
+                        </div>
+                        <div class="col-md-6">
+                            <label class="form-label">Year Level</label>
+                            <input type="number" min="1" max="6" name="year_level" class="form-control" value="1">
+                        </div>
+                        <div class="col-md-6">
+                            <label class="form-label">Course</label>
+                            <select name="course_id" class="form-select">
+                                <?php foreach ($courses as $course): ?>
+                                    <option value="<?= $course['id'] ?>"><?= sanitize($course['name']) ?></option>
+                                <?php endforeach; ?>
+                            </select>
+                        </div>
+                        <div class="col-md-6">
+                            <label class="form-label">Department</label>
+                            <select name="department_id" class="form-select">
+                                <?php foreach ($departments as $department): ?>
+                                    <option value="<?= $department['id'] ?>"><?= sanitize($department['name']) ?></option>
+                                <?php endforeach; ?>
+                            </select>
+                        </div>
+                        <div class="col-md-6">
+                            <label class="form-label">School</label>
+                            <select name="school_id" class="form-select">
+                                <?php foreach ($schools as $school): ?>
+                                    <option value="<?= $school['id'] ?>"><?= sanitize($school['name']) ?></option>
+                                <?php endforeach; ?>
+                            </select>
+                        </div>
+                        <div class="col-md-6">
+                            <label class="form-label">Email</label>
+                            <input type="email" name="email" class="form-control">
+                        </div>
+                        <div class="col-md-6">
+                            <label class="form-label">Contact Number</label>
+                            <input type="text" name="contact_number" class="form-control">
+                        </div>
+                        <div class="col-12">
+                            <label class="form-label">Address</label>
+                            <textarea name="address" class="form-control" rows="2"></textarea>
+                        </div>
+                        <div class="col-12">
+                            <label class="form-label">Status</label>
+                            <select name="status" class="form-select">
+                                <option value="1">Active</option>
+                                <option value="0">Inactive</option>
+                            </select>
+                        </div>
+                    </div>
+                </div>
+                <div class="modal-footer">
+                    <button type="button" class="btn btn-outline-secondary" data-bs-dismiss="modal">Cancel</button>
+                    <button type="submit" class="btn btn-primary">Add Student</button>
+                </div>
+            </form>
+        </div>
+    </div>
+</div>
+
+<!-- QR preview modal -->
+<div class="modal fade" id="qrModal" tabindex="-1" aria-hidden="true" data-generator="<?= url_for('qr/generate.php') ?>">
+    <div class="modal-dialog modal-sm modal-dialog-centered">
+        <div class="modal-content">
+            <div class="modal-header">
+                <div>
+                    <div class="text-muted small">QR Code</div>
+                    <h5 class="modal-title mb-0" data-qr-name>Student Name</h5>
+                </div>
+                <button type="button" class="btn-close" data-bs-dismiss="modal" aria-label="Close"></button>
+            </div>
+            <div class="modal-body text-center">
+                <div class="mb-2 text-muted small" data-qr-id>ID: —</div>
+                <div class="qr-preview mb-3">
+                    <img src="" alt="QR Code" class="img-fluid" data-qr-image>
+                </div>
+                <code class="d-block" data-qr-token></code>
+            </div>
+            <div class="modal-footer">
+                <a href="#" class="btn btn-primary w-100" data-qr-download download>
+                    Download PNG
+                </a>
+            </div>
+        </div>
+    </div>
+</div>
+
+<!-- Delete confirmation modal -->
+<div class="modal fade" id="deleteStudentModal" tabindex="-1" aria-hidden="true">
+    <div class="modal-dialog">
+        <div class="modal-content">
+            <form method="post">
+                <div class="modal-header">
+                    <h5 class="modal-title">Remove Student</h5>
+                    <button type="button" class="btn-close" data-bs-dismiss="modal" aria-label="Close"></button>
+                </div>
+                <div class="modal-body">
+                    <input type="hidden" name="csrf_token" value="<?= sanitize(ensure_csrf_token()) ?>">
+                    <input type="hidden" name="action" value="delete">
+                    <input type="hidden" name="id" value="">
+                    <p class="mb-1">Are you sure you want to remove this student?</p>
+                    <p class="fw-semibold mb-0" data-delete-name>Student Name</p>
+                    <small class="text-muted" data-delete-id data-label="ID">ID: —</small>
+                </div>
+                <div class="modal-footer">
+                    <button type="button" class="btn btn-outline-secondary" data-bs-dismiss="modal">Cancel</button>
+                    <button type="submit" class="btn btn-danger">Delete</button>
+                </div>
+            </form>
+        </div>
+    </div>
+</div>
+<?php
+render_footer();
diff --git a/src/admin/users.php b/src/admin/users.php
new file mode 100644
index 0000000..ee7d99c
--- /dev/null
+++ b/src/admin/users.php
@@ -0,0 +1,262 @@
+<?php
+require __DIR__ . '/../includes/bootstrap.php';
+require_login();
+require_admin();
+
+$pdo = db();
+$errors = [];
+
+if (is_post()) {
+    if (!validate_csrf_token($_POST['csrf_token'] ?? null)) {
+        $errors[] = 'Invalid session token.';
+    } else {
+        $action = $_POST['action'] ?? 'create';
+
+        if ($action === 'create') {
+            $payload = [
+                'username' => strtolower(trim($_POST['username'] ?? '')),
+                'full_name' => trim($_POST['full_name'] ?? ''),
+                'email' => trim($_POST['email'] ?? ''),
+                'role' => $_POST['role'] ?? 'admin',
+                'password' => $_POST['password'] ?? '',
+            ];
+
+            if ($payload['username'] === '' || $payload['password'] === '' || $payload['full_name'] === '') {
+                $errors[] = 'Username, full name, and password are required.';
+            } else {
+                $stmt = $pdo->prepare(
+                    'INSERT INTO users (username, password, role, full_name, email, status)
+                     VALUES (:username, :password, :role, :full_name, :email, 1)'
+                );
+                $stmt->execute([
+                    'username' => $payload['username'],
+                    'password' => password_hash($payload['password'], PASSWORD_BCRYPT),
+                    'role' => $payload['role'],
+                    'full_name' => $payload['full_name'],
+                    'email' => $payload['email'],
+                ]);
+                add_flash('success', 'User account created.');
+                redirect('admin/users.php');
+            }
+        }
+
+        if ($action === 'toggle') {
+            $id = (int) ($_POST['id'] ?? 0);
+            $stmt = $pdo->prepare('UPDATE users SET status = IF(status = 1, 0, 1) WHERE id = :id');
+            $stmt->execute(['id' => $id]);
+            add_flash('success', 'User status updated.');
+            redirect('admin/users.php');
+        }
+
+        if ($action === 'reset_password') {
+            $id = (int) ($_POST['id'] ?? 0);
+            $newPassword = trim($_POST['new_password'] ?? '');
+            if ($newPassword === '') {
+                $errors[] = 'New password is required.';
+            } else {
+                $stmt = $pdo->prepare('UPDATE users SET password = :password WHERE id = :id');
+                $stmt->execute([
+                    'password' => password_hash($newPassword, PASSWORD_BCRYPT),
+                    'id' => $id,
+                ]);
+                add_flash('success', 'Password updated.');
+                redirect('admin/users.php');
+            }
+        }
+    }
+}
+
+$users = $pdo->query(
+    'SELECT id, username, full_name, email, role, status, created_at
+     FROM users ORDER BY created_at DESC'
+)->fetchAll();
+
+render_header('Users', ['active' => 'users']);
+?>
+<div class="card shadow-sm">
+    <div class="card-header bg-white d-flex justify-content-between align-items-center">
+        <div>
+            <h5 class="mb-0">Users</h5>
+            <small class="text-muted"><?= count($users) ?> accounts</small>
+        </div>
+        <div class="d-flex gap-2 align-items-center">
+            <?php if ($errors): ?>
+                <span class="text-danger small"><?= sanitize(implode(' ', $errors)) ?></span>
+            <?php endif; ?>
+            <button class="btn btn-primary" data-bs-toggle="modal" data-bs-target="#userModal">
+                Create User
+            </button>
+        </div>
+    </div>
+    <div class="card-body">
+        <?php if (!$users): ?>
+            <p class="text-muted text-center mb-0">No users found.</p>
+        <?php else: ?>
+            <div class="table-responsive">
+                <table class="table align-middle">
+                    <thead>
+                    <tr>
+                        <th>User</th>
+                        <th>Role</th>
+                        <th>Status</th>
+                        <th>Created</th>
+                        <th class="text-end">Actions</th>
+                    </tr>
+                    </thead>
+                    <tbody>
+                    <?php foreach ($users as $user): ?>
+                        <?php
+                        $statusLabel = $user['status'] ? 'Active' : 'Disabled';
+                        $toggleAction = $user['status'] ? 'Disable' : 'Enable';
+                        $toggleConfirm = $user['status'] ? 'Disable this user?' : 'Enable this user?';
+                        ?>
+                        <tr>
+                            <td>
+                                <strong><?= sanitize($user['full_name']) ?></strong><br>
+                                <span class="text-muted-sm"><?= sanitize($user['username']) ?> · <?= sanitize($user['email']) ?></span>
+                            </td>
+                            <td><?= strtoupper(sanitize($user['role'])) ?></td>
+                            <td>
+                                <span class="badge <?= $user['status'] ? 'bg-success-subtle text-success' : 'bg-secondary' ?>">
+                                    <?= $statusLabel ?>
+                                </span>
+                            </td>
+                            <td><?= format_datetime($user['created_at']) ?></td>
+                            <td class="text-end">
+                                <div class="btn-group" role="group">
+                                    <button class="btn btn-sm btn-outline-secondary"
+                                            data-bs-toggle="modal"
+                                            data-bs-target="#toggleUserModal"
+                                            data-id="<?= (int) $user['id'] ?>"
+                                            data-record-name="<?= sanitize($user['full_name']) ?>"
+                                            data-record-ref="<?= sanitize($user['username']) ?>"
+                                            data-confirm-text="<?= sanitize($toggleConfirm) ?>"
+                                            data-confirm-label="<?= sanitize($toggleAction) ?>">
+                                        <?= $toggleAction ?>
+                                    </button>
+                                    <button class="btn btn-sm btn-outline-primary"
+                                            data-bs-toggle="modal"
+                                            data-bs-target="#resetPasswordModal"
+                                            data-id="<?= (int) $user['id'] ?>"
+                                            data-record-name="<?= sanitize($user['full_name']) ?>"
+                                            data-record-ref="<?= sanitize($user['username']) ?>">
+                                        Reset Password
+                                    </button>
+                                </div>
+                            </td>
+                        </tr>
+                    <?php endforeach; ?>
+                    </tbody>
+                </table>
+            </div>
+        <?php endif; ?>
+    </div>
+</div>
+
+<!-- Create user modal -->
+<div class="modal fade" id="userModal" tabindex="-1" aria-hidden="true"
+     data-create-title="Create User" data-edit-title="Create User"
+     data-create-submit="Create Account" data-edit-submit="Create Account">
+    <div class="modal-dialog modal-lg modal-dialog-scrollable">
+        <div class="modal-content">
+            <form method="post" class="needs-validation" novalidate>
+                <div class="modal-header">
+                    <h5 class="modal-title" data-modal-title>Create User</h5>
+                    <button type="button" class="btn-close" data-bs-dismiss="modal" aria-label="Close"></button>
+                </div>
+                <div class="modal-body">
+                    <input type="hidden" name="csrf_token" value="<?= sanitize(ensure_csrf_token()) ?>">
+                    <input type="hidden" name="action" value="create">
+                    <input type="hidden" name="id" value="">
+                    <div class="row g-3">
+                        <div class="col-md-6">
+                            <label class="form-label">Username</label>
+                            <input type="text" name="username" class="form-control text-lowercase" required>
+                        </div>
+                        <div class="col-md-6">
+                            <label class="form-label">Full Name</label>
+                            <input type="text" name="full_name" class="form-control" required>
+                        </div>
+                        <div class="col-md-6">
+                            <label class="form-label">Email</label>
+                            <input type="email" name="email" class="form-control">
+                        </div>
+                        <div class="col-md-6">
+                            <label class="form-label">Role</label>
+                            <select name="role" class="form-select">
+                                <option value="admin">Admin</option>
+                                <option value="staff">Staff</option>
+                            </select>
+                        </div>
+                        <div class="col-12">
+                            <label class="form-label">Password</label>
+                            <input type="password" name="password" class="form-control" required>
+                        </div>
+                    </div>
+                </div>
+                <div class="modal-footer">
+                    <button type="button" class="btn btn-outline-secondary" data-bs-dismiss="modal">Cancel</button>
+                    <button type="submit" class="btn btn-primary">Create Account</button>
+                </div>
+            </form>
+        </div>
+    </div>
+</div>
+
+<!-- Toggle status modal -->
+<div class="modal fade" id="toggleUserModal" tabindex="-1" aria-hidden="true">
+    <div class="modal-dialog">
+        <div class="modal-content">
+            <form method="post">
+                <div class="modal-header">
+                    <h5 class="modal-title">Update Status</h5>
+                    <button type="button" class="btn-close" data-bs-dismiss="modal" aria-label="Close"></button>
+                </div>
+                <div class="modal-body">
+                    <input type="hidden" name="csrf_token" value="<?= sanitize(ensure_csrf_token()) ?>">
+                    <input type="hidden" name="action" value="toggle">
+                    <input type="hidden" name="id" value="">
+                    <p class="mb-1" data-delete-message>Update user status?</p>
+                    <p class="fw-semibold mb-0" data-delete-name>User Name</p>
+                    <small class="text-muted" data-delete-id data-label="Username">Username: —</small>
+                </div>
+                <div class="modal-footer">
+                    <button type="button" class="btn btn-outline-secondary" data-bs-dismiss="modal">Cancel</button>
+                    <button type="submit" class="btn btn-warning" data-delete-confirm>Confirm</button>
+                </div>
+            </form>
+        </div>
+    </div>
+</div>
+
+<!-- Reset password modal -->
+<div class="modal fade" id="resetPasswordModal" tabindex="-1" aria-hidden="true">
+    <div class="modal-dialog">
+        <div class="modal-content">
+            <form method="post" class="needs-validation" novalidate>
+                <div class="modal-header">
+                    <h5 class="modal-title">Reset Password</h5>
+                    <button type="button" class="btn-close" data-bs-dismiss="modal" aria-label="Close"></button>
+                </div>
+                <div class="modal-body">
+                    <input type="hidden" name="csrf_token" value="<?= sanitize(ensure_csrf_token()) ?>">
+                    <input type="hidden" name="action" value="reset_password">
+                    <input type="hidden" name="id" value="">
+                    <p class="mb-1">Reset password for:</p>
+                    <p class="fw-semibold mb-0" data-delete-name>User Name</p>
+                    <small class="text-muted" data-delete-id data-label="Username">Username: —</small>
+                    <div class="mt-3">
+                        <label class="form-label">New Password</label>
+                        <input type="password" name="new_password" class="form-control" required>
+                    </div>
+                </div>
+                <div class="modal-footer">
+                    <button type="button" class="btn btn-outline-secondary" data-bs-dismiss="modal">Cancel</button>
+                    <button type="submit" class="btn btn-primary" data-delete-confirm>Update Password</button>
+                </div>
+            </form>
+        </div>
+    </div>
+</div>
+<?php
+render_footer();
diff --git a/src/api/manual_entry.php b/src/api/manual_entry.php
new file mode 100644
index 0000000..4a2bff2
--- /dev/null
+++ b/src/api/manual_entry.php
@@ -0,0 +1,123 @@
+<?php
+require __DIR__ . '/../includes/bootstrap.php';
+require_login();
+
+$pdo = db();
+
+if ($_SERVER['REQUEST_METHOD'] === 'POST') {
+    header('Content-Type: application/json');
+
+    $studentIdentifier = trim($_POST['student'] ?? '');
+    $activityId = (int) ($_POST['activity_id'] ?? 0);
+    $status = $_POST['status'] ?? 'present';
+    $notes = trim($_POST['notes'] ?? 'Manual entry');
+
+    if ($studentIdentifier === '' || !$activityId) {
+        http_response_code(422);
+        echo json_encode(['success' => false, 'message' => 'Student and activity are required.']);
+        exit;
+    }
+
+    $studentStmt = $pdo->prepare(
+        'SELECT * FROM students WHERE (student_id = :identifier OR qr_code = :identifier) LIMIT 1'
+    );
+    $studentStmt->execute(['identifier' => $studentIdentifier]);
+    $student = $studentStmt->fetch();
+    if (!$student) {
+        http_response_code(404);
+        echo json_encode(['success' => false, 'message' => 'Student not found.']);
+        exit;
+    }
+
+    $activityStmt = $pdo->prepare('SELECT * FROM activities WHERE id = :id LIMIT 1');
+    $activityStmt->execute(['id' => $activityId]);
+    $activity = $activityStmt->fetch();
+    if (!$activity) {
+        http_response_code(404);
+        echo json_encode(['success' => false, 'message' => 'Activity not found.']);
+        exit;
+    }
+
+    $now = (new DateTime())->format('Y-m-d H:i:s');
+    $attendanceStmt = $pdo->prepare(
+        'INSERT INTO attendance (student_id, activity_id, time_in, status, notes)
+         VALUES (:student_id, :activity_id, :time_in, :status, :notes)
+         ON DUPLICATE KEY UPDATE status = VALUES(status), notes = VALUES(notes),
+             updated_at = CURRENT_TIMESTAMP'
+    );
+    $attendanceStmt->execute([
+        'student_id' => $student['id'],
+        'activity_id' => $activityId,
+        'time_in' => $now,
+        'status' => $status,
+        'notes' => $notes,
+    ]);
+
+    $attendanceId = (int) $pdo->lastInsertId();
+    if (!$attendanceId) {
+        $idLookup = $pdo->prepare(
+            'SELECT id FROM attendance WHERE student_id = :student_id AND activity_id = :activity_id LIMIT 1'
+        );
+        $idLookup->execute([
+            'student_id' => $student['id'],
+            'activity_id' => $activityId,
+        ]);
+        $attendanceId = (int) $idLookup->fetchColumn();
+    }
+    $log = $pdo->prepare(
+        'INSERT INTO attendance_logs (attendance_id, action, old_value, new_value, changed_by, notes)
+         VALUES (:attendance_id, :action, :old_value, :new_value, :changed_by, :notes)'
+    );
+    $log->execute([
+        'attendance_id' => $attendanceId,
+        'action' => 'manual_entry',
+        'old_value' => null,
+        'new_value' => $now,
+        'changed_by' => current_user()['id'],
+        'notes' => $notes,
+    ]);
+
+    echo json_encode(['success' => true, 'message' => 'Manual attendance recorded.']);
+    exit;
+}
+
+// GET export
+$filters = [
+    'start_date' => $_GET['start_date'] ?? null,
+    'end_date' => $_GET['end_date'] ?? null,
+    'activity_id' => $_GET['activity_id'] ?? null,
+    'status' => $_GET['status'] ?? null,
+];
+
+$conditions = [];
+$params = [];
+if ($filters['start_date']) {
+    $conditions[] = 'DATE(att.time_in) >= :start_date';
+    $params['start_date'] = $filters['start_date'];
+}
+if ($filters['end_date']) {
+    $conditions[] = 'DATE(att.time_in) <= :end_date';
+    $params['end_date'] = $filters['end_date'];
+}
+if ($filters['activity_id']) {
+    $conditions[] = 'att.activity_id = :activity_id';
+    $params['activity_id'] = (int) $filters['activity_id'];
+}
+if ($filters['status']) {
+    $conditions[] = 'att.status = :status';
+    $params['status'] = $filters['status'];
+}
+$where = $conditions ? 'WHERE ' . implode(' AND ', $conditions) : '';
+
+$stmt = $pdo->prepare(
+    "SELECT att.*, s.full_name, s.student_id, act.name AS activity_name
+     FROM attendance att
+     INNER JOIN students s ON att.student_id = s.id
+     INNER JOIN activities act ON att.activity_id = act.id
+     $where
+     ORDER BY att.time_in DESC"
+);
+$stmt->execute($params);
+
+header('Content-Type: application/json');
+echo json_encode($stmt->fetchAll());
diff --git a/src/api/scan.php b/src/api/scan.php
new file mode 100644
index 0000000..2f0191c
--- /dev/null
+++ b/src/api/scan.php
@@ -0,0 +1,137 @@
+<?php
+require __DIR__ . '/../includes/bootstrap.php';
+require_login();
+require_admin();
+
+header('Content-Type: application/json');
+
+$payload = json_decode(file_get_contents('php://input'), true);
+if (!is_array($payload)) {
+    http_response_code(400);
+    echo json_encode(['success' => false, 'message' => 'Invalid payload.']);
+    exit;
+}
+
+$qrToken = trim($payload['qr_token'] ?? '');
+$activityId = (int) ($payload['activity_id'] ?? 0);
+$notes = trim($payload['notes'] ?? '');
+
+if ($qrToken === '' || !$activityId) {
+    http_response_code(422);
+    echo json_encode(['success' => false, 'message' => 'QR token and activity are required.']);
+    exit;
+}
+
+$pdo = db();
+
+$activityStmt = $pdo->prepare('SELECT * FROM activities WHERE id = :id AND status = 1 LIMIT 1');
+$activityStmt->execute(['id' => $activityId]);
+$activity = $activityStmt->fetch();
+
+if (!$activity) {
+    http_response_code(404);
+    echo json_encode(['success' => false, 'message' => 'Activity not found or inactive.']);
+    exit;
+}
+
+$studentStmt = $pdo->prepare(
+    'SELECT * FROM students WHERE (qr_code = :token OR student_id = :token) AND status = 1 LIMIT 1'
+);
+$studentStmt->execute(['token' => $qrToken]);
+$student = $studentStmt->fetch();
+
+if (!$student) {
+    http_response_code(404);
+    echo json_encode(['success' => false, 'message' => 'Student not found or inactive.']);
+    exit;
+}
+
+$pdo->beginTransaction();
+try {
+    $attendanceStmt = $pdo->prepare(
+        'SELECT * FROM attendance WHERE student_id = :student_id AND activity_id = :activity_id LIMIT 1'
+    );
+    $attendanceStmt->execute([
+        'student_id' => $student['id'],
+        'activity_id' => $activity['id'],
+    ]);
+    $attendance = $attendanceStmt->fetch();
+
+    $now = (new DateTime())->format('Y-m-d H:i:s');
+    $action = '';
+
+    if (!$attendance) {
+        $insert = $pdo->prepare(
+            'INSERT INTO attendance (student_id, activity_id, time_in, status, notes)
+             VALUES (:student_id, :activity_id, :time_in, :status, :notes)'
+        );
+        $insert->execute([
+            'student_id' => $student['id'],
+            'activity_id' => $activity['id'],
+            'time_in' => $now,
+            'status' => 'present',
+            'notes' => $notes,
+        ]);
+        $attendanceId = (int) $pdo->lastInsertId();
+        $action = 'time_in';
+    } elseif ($attendance['time_out'] === null) {
+        $update = $pdo->prepare(
+            'UPDATE attendance SET time_out = :time_out, notes = :notes, updated_at = CURRENT_TIMESTAMP
+             WHERE id = :id'
+        );
+        $update->execute([
+            'time_out' => $now,
+            'notes' => $notes ?: $attendance['notes'],
+            'id' => $attendance['id'],
+        ]);
+        $attendanceId = (int) $attendance['id'];
+        $action = 'time_out';
+    } else {
+        $pdo->rollBack();
+        echo json_encode([
+            'success' => true,
+            'message' => 'Attendance already completed for this student.',
+            'meta' => [
+                'student' => $student['full_name'],
+                'activity' => $activity['name'],
+                'action' => 'ignored',
+                'timestamp' => format_datetime($attendance['updated_at']),
+            ],
+        ]);
+        exit;
+    }
+
+    $log = $pdo->prepare(
+        'INSERT INTO attendance_logs (attendance_id, action, old_value, new_value, changed_by, notes)
+         VALUES (:attendance_id, :action, :old_value, :new_value, :changed_by, :notes)'
+    );
+    $log->execute([
+        'attendance_id' => $attendanceId,
+        'action' => $action,
+        'old_value' => null,
+        'new_value' => $now,
+        'changed_by' => current_user()['id'],
+        'notes' => $notes,
+    ]);
+
+    $pdo->commit();
+
+    echo json_encode([
+        'success' => true,
+        'message' => sprintf(
+            'Marked %s for %s.',
+            $action === 'time_in' ? 'time in' : 'time out',
+            $student['full_name']
+        ),
+        'meta' => [
+            'student' => $student['full_name'],
+            'activity' => $activity['name'],
+            'action' => $action,
+            'timestamp' => format_datetime($now),
+        ],
+    ]);
+} catch (Throwable $exception) {
+    $pdo->rollBack();
+    http_response_code(500);
+    echo json_encode(['success' => false, 'message' => 'Unable to record attendance.']);
+}
diff --git a/src/assets/css/style.css b/src/assets/css/style.css
new file mode 100644
index 0000000..13b6230
--- /dev/null
+++ b/src/assets/css/style.css
@@ -0,0 +1,424 @@
+:root {
+    --brand-primary: #1b7f5c;
+    --brand-secondary: #3fc380;
+    --brand-accent: #a2d729;
+    --brand-muted: #edf6f0;
+    --bs-primary: var(--brand-primary);
+    --bs-primary-rgb: 27, 127, 92;
+    --bs-primary-bg-subtle: #d6f5ea;
+    --bs-primary-border-subtle: #a1dfc6;
+    --bs-link-color: var(--brand-primary);
+    --bs-link-hover-color: #146946;
+}
+
+body {
+    background-color: #f2f9f4;
+    font-family: "Inter", system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
+    min-height: 100vh;
+}
+
+.auth-shell {
+    width: 100%;
+    max-width: 100%;
+    margin: 0 auto;
+}
+
+.google-auth-shell {
+    width: 100%;
+    min-height: calc(100vh - 4rem);
+    display: flex;
+    flex-direction: column;
+    align-items: center;
+    justify-content: center;
+    gap: 1.5rem;
+    padding: 2rem 1rem 3rem;
+    background:
+        radial-gradient(circle at top, rgba(66, 133, 244, 0.12), transparent 55%),
+        radial-gradient(circle at 20% 20%, rgba(52, 168, 83, 0.12), transparent 45%),
+        radial-gradient(circle at 80% 0%, rgba(234, 67, 53, 0.12), transparent 50%),
+        #f2f9f4;
+}
+
+.google-auth-card {
+    background: #fff;
+    border-radius: 16px;
+    border: 1px solid rgba(218, 220, 224, 0.8);
+    padding: 2.75rem 3.25rem;
+    max-width: 460px;
+    width: 100%;
+    box-shadow:
+        0 10px 30px rgba(26, 115, 232, 0.08),
+        0 2px 8px rgba(0, 0, 0, 0.04);
+}
+
+.google-auth-head .google-title {
+    font-weight: 500;
+}
+
+.google-subtitle {
+    color: #5f6368;
+    font-size: 0.95rem;
+    margin: 0;
+}
+
+.google-logo {
+    display: flex;
+    flex-direction: column;
+    align-items: center;
+    gap: 0.55rem;
+    margin-bottom: 0.75rem;
+}
+
+.qr-logo-icon {
+    width: 64px;
+    height: 64px;
+    border-radius: 16px;
+    padding: 0.5rem;
+    background: linear-gradient(145deg, rgba(27, 127, 92, 0.12), rgba(15, 81, 50, 0.08));
+    border: 1px solid rgba(27, 127, 92, 0.3);
+    display: inline-flex;
+    align-items: center;
+    justify-content: center;
+    box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.35);
+}
+
+.qr-logo-icon svg {
+    width: 100%;
+    height: 100%;
+}
+
+.google-logo-text {
+    font-weight: 600;
+    font-size: 0.9rem;
+    color: #5f6368;
+}
+
+.google-form {
+    display: flex;
+    flex-direction: column;
+}
+
+.google-field {
+    position: relative;
+    margin-bottom: 1.5rem;
+    transition: transform 0.15s ease;
+}
+
+.google-field:focus-within {
+    transform: translateY(-2px);
+}
+
+.google-input {
+    width: 100%;
+    border: 1px solid #dadce0;
+    border-radius: 10px;
+    padding: 1.4rem 3rem 0.6rem 1rem;
+    background: transparent;
+    font-size: 1rem;
+    transition: border-color 0.2s ease, box-shadow 0.2s ease, background 0.2s ease;
+}
+
+.google-input:focus {
+    border-color: #1a73e8;
+    box-shadow: 0 6px 18px rgba(26, 115, 232, 0.15);
+    background: #fff;
+    outline: none;
+}
+
+.google-input:not(:placeholder-shown) + .google-label,
+.google-input:focus + .google-label {
+    top: 0.55rem;
+    font-size: 0.75rem;
+    color: #1a73e8;
+}
+
+.google-label {
+    position: absolute;
+    left: 1rem;
+    top: 50%;
+    transform: translateY(-50%);
+    font-size: 0.95rem;
+    color: #5f6368;
+    transition: all 0.15s ease;
+    pointer-events: none;
+    background: #fff;
+    padding: 0 0.25rem;
+}
+
+.google-toggle {
+    position: absolute;
+    top: 50%;
+    right: 0.75rem;
+    transform: translateY(-50%);
+    border: none;
+    background: transparent;
+    color: #1a73e8;
+    font-weight: 600;
+    font-size: 0.9rem;
+    padding: 0;
+    cursor: pointer;
+    transition: color 0.15s ease;
+}
+
+.google-toggle:hover {
+    color: #174ea6;
+}
+
+.google-links {
+    display: flex;
+    justify-content: flex-end;
+    font-size: 0.9rem;
+    margin-bottom: 2rem;
+}
+
+.google-links a {
+    color: #1a73e8;
+    text-decoration: none;
+    font-weight: 600;
+}
+
+.google-links a:hover {
+    text-decoration: underline;
+}
+
+.google-actions {
+    display: flex;
+    justify-content: space-between;
+    align-items: center;
+    gap: 1rem;
+    margin-bottom: 1.5rem;
+}
+
+.google-alt-action {
+    color: #1a73e8;
+    text-decoration: none;
+    font-weight: 600;
+    padding-left: 0;
+    padding-right: 0;
+    transition: color 0.15s ease;
+}
+
+.google-alt-action:hover {
+    color: #174ea6;
+}
+
+.google-primary-action {
+    min-width: 110px;
+    border-radius: 50px;
+    font-weight: 600;
+    background-color: #1a73e8;
+    border-color: #1a73e8;
+    box-shadow: 0 6px 18px rgba(26, 115, 232, 0.25);
+    transition: transform 0.15s ease, box-shadow 0.15s ease;
+}
+
+.google-primary-action:hover {
+    background-color: #1668d8;
+    border-color: #1668d8;
+    transform: translateY(-1px);
+    box-shadow: 0 8px 24px rgba(26, 115, 232, 0.3);
+}
+
+.google-footnote {
+    font-size: 0.85rem;
+    margin: 0;
+}
+
+@media (max-width: 575.98px) {
+    .google-auth-card {
+        padding: 2rem;
+        border-radius: 12px;
+    }
+}
+
+.app-shell {
+    display: flex;
+    min-height: 100vh;
+    background-color: #f5f7fb;
+}
+
+.sidebar {
+    width: 260px;
+    padding: 2rem 1.5rem;
+    display: flex;
+    flex-direction: column;
+    flex-shrink: 0;
+    position: sticky;
+    top: 0;
+    height: 100vh;
+    overflow: hidden;
+    transition: all 0.25s ease;
+}
+
+.sidebar-brand {
+    display: flex;
+    align-items: center;
+    gap: 0.75rem;
+}
+
+.sidebar-icon {
+    width: 42px;
+    height: 42px;
+    border-radius: 12px;
+    display: grid;
+    place-items: center;
+    font-weight: 700;
+}
+
+.sidebar-nav {
+    display: flex;
+    flex-direction: column;
+    gap: 0.25rem;
+}
+
+.sidebar-link {
+    border-radius: 0.75rem;
+    padding: 0.65rem 0.85rem;
+    color: #495057;
+    text-decoration: none;
+    transition: all 0.15s ease;
+}
+
+.sidebar-link:hover {
+    background-color: rgba(27, 127, 92, 0.1);
+    color: var(--brand-primary);
+}
+
+.sidebar-link.active {
+    background-color: var(--brand-primary);
+    color: #fff;
+}
+
+.sidebar-user {
+    display: flex;
+    align-items: center;
+    gap: 1rem;
+    padding: 0.75rem;
+    border-radius: 0.75rem;
+    background-color: var(--brand-muted);
+    border: 1px solid rgba(27, 127, 92, 0.15);
+}
+
+.content-area {
+    display: flex;
+    flex-direction: column;
+    flex-grow: 1;
+    min-width: 0;
+    transition: margin-left 0.25s ease;
+}
+
+.content-body {
+    flex-grow: 1;
+}
+
+.camera-viewer {
+    min-height: 240px;
+    border: 1px dashed rgba(0, 0, 0, 0.15);
+    display: grid;
+    place-items: center;
+    overflow: hidden;
+}
+
+body.sidebar-collapsed .sidebar {
+    width: 0;
+    padding: 0;
+    margin: 0;
+    opacity: 0;
+    pointer-events: none;
+}
+
+body.sidebar-collapsed .content-area {
+    margin-left: 0;
+}
+
+.sidebar-toggle {
+    border-radius: 999px;
+    width: 34px;
+    height: 34px;
+    display: grid;
+    place-items: center;
+    padding: 0;
+}
+
+.navbar-brand {
+    color: var(--brand-primary) !important;
+}
+
+.stat-card {
+    border: 1px solid rgba(0, 0, 0, 0.06);
+    border-radius: 1rem;
+    background: #fff;
+    padding: 1.5rem;
+    min-height: 130px;
+}
+
+.stat-card h6 {
+    text-transform: uppercase;
+    letter-spacing: 0.08em;
+    font-size: 0.75rem;
+    color: #6c757d;
+    margin-bottom: 0.5rem;
+}
+
+.stat-card .stat-value {
+    font-size: 2.25rem;
+    font-weight: 700;
+    color: var(--brand-primary);
+    margin: 0;
+}
+
+.card {
+    border-radius: 1rem;
+    border-color: rgba(0, 0, 0, 0.05);
+}
+
+.table thead {
+    background-color: var(--brand-muted);
+}
+
+.badge-status {
+    text-transform: uppercase;
+    font-size: 0.7rem;
+    letter-spacing: 0.05em;
+}
+
+.scan-panel {
+    background: linear-gradient(135deg, var(--brand-primary), var(--brand-secondary));
+    color: #fff;
+    border-radius: 1.25rem;
+    padding: 2rem;
+    box-shadow: 0 20px 40px rgba(27, 127, 92, 0.25);
+}
+
+.scan-panel h2 {
+    font-weight: 700;
+    margin-bottom: 1rem;
+}
+
+.scan-panel .form-control,
+.scan-panel .form-select {
+    border-radius: 0.75rem;
+}
+
+.qr-preview {
+    border: 1px dashed rgba(0, 0, 0, 0.2);
+    border-radius: 1rem;
+    padding: 1rem;
+    background: #fff;
+}
+
+.chip {
+    display: inline-flex;
+    align-items: center;
+    gap: 0.35rem;
+    padding: 0.35rem 0.85rem;
+    border-radius: 999px;
+    font-size: 0.75rem;
+    background-color: var(--brand-muted);
+    color: #1f5137;
+}
+
+.text-muted-sm {
+    font-size: 0.9rem;
+    color: #868e96 !important;
+}
diff --git a/src/assets/images/aldersgate.png b/src/assets/images/aldersgate.png
new file mode 100644
index 0000000..3a37d54
Binary files /dev/null and b/src/assets/images/aldersgate.png differ
diff --git a/src/assets/js/admin.js b/src/assets/js/admin.js
new file mode 100644
index 0000000..bb13108
--- /dev/null
+++ b/src/assets/js/admin.js
@@ -0,0 +1,175 @@
+(() => {
+    document.addEventListener('DOMContentLoaded', () => {
+        ['studentModal', 'activityModal', 'courseModal', 'departmentModal', 'userModal']
+            .forEach(setupRecordModal);
+        setupSidebarToggle();
+        setupQrModal('qrModal');
+        ['deleteStudentModal', 'deleteActivityModal', 'deleteCourseModal', 'deleteDepartmentModal', 'toggleUserModal', 'resetPasswordModal']
+            .forEach(setupDeleteModal);
+    });
+
+    function setupRecordModal(id) {
+        const modalEl = document.getElementById(id);
+        if (!modalEl) return;
+
+        const createTitle = modalEl.dataset.createTitle || 'Add Record';
+        const editTitle = modalEl.dataset.editTitle || 'Edit Record';
+        const createSubmit = modalEl.dataset.createSubmit || 'Add Record';
+        const editSubmit = modalEl.dataset.editSubmit || 'Save Changes';
+
+        modalEl.addEventListener('show.bs.modal', (event) => {
+            const button = event.relatedTarget;
+            const mode = button && button.dataset ? button.dataset.mode || 'create' : 'create';
+            const form = modalEl.querySelector('form');
+            if (!form) return;
+            const hasRecordPayload = Boolean(button && button.dataset && button.dataset.record);
+            const isEdit = mode === 'edit' || hasRecordPayload;
+
+            form.reset();
+            form.querySelector('[name="action"]').value = isEdit ? 'update' : 'create';
+            form.querySelector('[name="id"]').value = '';
+
+            const title = modalEl.querySelector('[data-modal-title]');
+            const submit = modalEl.querySelector('[type="submit"]');
+
+            if (hasRecordPayload) {
+                try {
+                    const data = JSON.parse(atob(button.dataset.record));
+                    Object.entries(data).forEach(([key, value]) => {
+                        const field = form.querySelector(`[name="${key}"]`);
+                        if (!field) return;
+                        field.value = value ?? '';
+                    });
+                    form.querySelector('[name="id"]').value = data.id ?? '';
+                } catch (error) {
+                    console.error('Failed to parse record payload', error);
+                }
+            }
+
+            if (title) {
+                title.textContent = isEdit ? editTitle : createTitle;
+            }
+            if (submit) {
+                submit.textContent = isEdit ? editSubmit : createSubmit;
+            }
+        });
+    }
+
+    function setupSidebarToggle() {
+        const toggleButtons = document.querySelectorAll('[data-sidebar-toggle]');
+        if (!toggleButtons.length) return;
+
+        const storageKey = 'sidebarCollapsed';
+        if (localStorage.getItem(storageKey) === '1') {
+            document.body.classList.add('sidebar-collapsed');
+        }
+
+        toggleButtons.forEach((button) => {
+            button.addEventListener('click', () => {
+                document.body.classList.toggle('sidebar-collapsed');
+                const collapsed = document.body.classList.contains('sidebar-collapsed');
+                localStorage.setItem(storageKey, collapsed ? '1' : '0');
+            });
+        });
+    }
+
+    function setupQrModal(id) {
+        const modalEl = document.getElementById(id);
+        if (!modalEl) return;
+
+        const generator = modalEl.getAttribute('data-generator') || '';
+        const nameEl = modalEl.querySelector('[data-qr-name]');
+        const idEl = modalEl.querySelector('[data-qr-id]');
+        const tokenEl = modalEl.querySelector('[data-qr-token]');
+        const imageEl = modalEl.querySelector('[data-qr-image]');
+        const downloadEl = modalEl.querySelector('[data-qr-download]');
+
+        modalEl.addEventListener('show.bs.modal', (event) => {
+            const trigger = event.relatedTarget;
+            if (!trigger || !trigger.dataset) return;
+
+            const token = trigger.dataset.qrToken || '';
+            const studentId = trigger.dataset.studentId || '';
+            const studentName = trigger.dataset.studentName || 'Student';
+
+            if (nameEl) nameEl.textContent = studentName;
+            if (idEl) idEl.textContent = `ID: ${studentId || '—'}`;
+            if (tokenEl) tokenEl.textContent = token;
+
+            if (imageEl) {
+                if (generator && token) {
+                    imageEl.src = `${generator}?token=${encodeURIComponent(token)}&v=${Date.now()}`;
+                    imageEl.alt = `QR code for ${studentName}`;
+                } else {
+                    imageEl.removeAttribute('src');
+                    imageEl.alt = 'QR code unavailable';
+                }
+            }
+
+            if (downloadEl) {
+                const canDownload = Boolean(generator && token);
+                if (canDownload) {
+                    downloadEl.href = `${generator}?token=${encodeURIComponent(token)}&download=1`;
+                    downloadEl.setAttribute('download', `qr-${studentId || token}.png`);
+                    downloadEl.classList.remove('disabled');
+                    downloadEl.removeAttribute('aria-disabled');
+                } else {
+                    downloadEl.href = '#';
+                    downloadEl.setAttribute('aria-disabled', 'true');
+                    downloadEl.classList.add('disabled');
+                }
+            }
+        });
+    }
+
+    function setupDeleteModal(id) {
+        const modalEl = document.getElementById(id);
+        if (!modalEl) return;
+
+        const nameEl = modalEl.querySelector('[data-delete-name]');
+        const idEl = modalEl.querySelector('[data-delete-id]');
+        const messageEl = modalEl.querySelector('[data-delete-message]');
+        const confirmButton = modalEl.querySelector('[data-delete-confirm]');
+        const hiddenId = modalEl.querySelector('input[name="id"]');
+        const defaultNameText = nameEl ? nameEl.textContent : 'Record Name';
+        const defaultIdText = idEl ? idEl.textContent : '';
+        const defaultMessageText = messageEl ? messageEl.textContent : '';
+        const defaultConfirmText = confirmButton ? confirmButton.textContent : '';
+
+        modalEl.addEventListener('show.bs.modal', (event) => {
+            const trigger = event.relatedTarget;
+            if (!trigger || !trigger.dataset) return;
+
+            const recordId = trigger.dataset.id || '';
+            const recordName = trigger.dataset.recordName || trigger.dataset.studentName || 'Record';
+            const recordRef = trigger.dataset.recordRef || trigger.dataset.studentId || '';
+
+            if (hiddenId) hiddenId.value = recordId;
+            if (nameEl) nameEl.textContent = recordName || defaultNameText;
+            if (idEl) {
+                if (recordRef) {
+                    const label = idEl.dataset.label || '';
+                    idEl.textContent = label ? `${label}: ${recordRef}` : recordRef;
+                } else {
+                    idEl.textContent = defaultIdText;
+                }
+            }
+            if (messageEl) {
+                const confirmText = trigger.dataset.confirmText || '';
+                messageEl.textContent = confirmText || defaultMessageText;
+            }
+            if (confirmButton) {
+                const confirmLabel = trigger.dataset.confirmLabel || '';
+                confirmButton.textContent = confirmLabel || defaultConfirmText;
+            }
+        });
+
+        modalEl.addEventListener('hidden.bs.modal', () => {
+            if (hiddenId) hiddenId.value = '';
+            if (nameEl) nameEl.textContent = defaultNameText;
+            if (idEl) idEl.textContent = defaultIdText;
+            if (messageEl) messageEl.textContent = defaultMessageText;
+            if (confirmButton) confirmButton.textContent = defaultConfirmText;
+        });
+    }
+})();
diff --git a/src/assets/js/scan.js b/src/assets/js/scan.js
new file mode 100644
index 0000000..bb01205
--- /dev/null
+++ b/src/assets/js/scan.js
@@ -0,0 +1,223 @@
+(() => {
+    document.addEventListener('DOMContentLoaded', () => {
+        const scanForm = document.querySelector('[data-scan-form]');
+        if (scanForm) {
+            const endpoint = scanForm.dataset.endpoint;
+            const qrInput = scanForm.querySelector('input[name="qr_token"]');
+            const resultBox = document.querySelector('#scan-result');
+            const statusBox = document.querySelector('#scan-status');
+            const submitBtn = scanForm.querySelector('button[type="submit"]');
+            const setStatus = (message, classes = 'text-white fw-semibold') => {
+                if (!statusBox) return;
+                statusBox.textContent = message;
+                statusBox.className = classes;
+            };
+
+            scanForm.addEventListener('submit', async (event) => {
+                event.preventDefault();
+                if (!endpoint) return;
+
+                const payload = Object.fromEntries(new FormData(scanForm));
+                submitBtn.disabled = true;
+                setStatus('Processing scan…');
+
+                try {
+                    const response = await fetch(endpoint, {
+                        method: 'POST',
+                        headers: {
+                            'Content-Type': 'application/json',
+                            'X-Requested-With': 'XMLHttpRequest'
+                        },
+                        body: JSON.stringify(payload)
+                    });
+
+                    const data = await response.json();
+                    setStatus(
+                        data.message || 'No response message',
+                        data.success ? 'text-success fw-semibold' : 'text-danger fw-semibold'
+                    );
+
+                    if (data.meta && resultBox) {
+                        resultBox.innerHTML = `
+                            <div class="list-group">
+                                <div class="list-group-item">
+                                    <strong>Student:</strong> ${data.meta.student ?? '—'}
+                                </div>
+                                <div class="list-group-item">
+                                    <strong>Activity:</strong> ${data.meta.activity ?? '—'}
+                                </div>
+                                <div class="list-group-item">
+                                    <strong>Action:</strong> ${data.meta.action ?? '—'}
+                                </div>
+                                <div class="list-group-item">
+                                    <strong>Recorded:</strong> ${data.meta.timestamp ?? '—'}
+                                </div>
+                            </div>
+                        `;
+                    }
+
+                    qrInput.value = '';
+                    qrInput.focus();
+                } catch (error) {
+                    console.error(error);
+                    setStatus('Unable to process scan. Please try again.', 'text-danger fw-semibold');
+                } finally {
+                    submitBtn.disabled = false;
+                }
+            });
+
+            setupCameraScanner(scanForm, qrInput, setStatus);
+        }
+    });
+
+    function setupCameraScanner(form, qrInput, setStatus) {
+        const cameraRegion = document.querySelector('#camera-viewer');
+        const startButton = document.querySelector('[data-scan-start]');
+        if (!cameraRegion || !startButton) return;
+
+        let html5Scanner = null;
+        let fallbackController = null;
+
+        startButton.addEventListener('click', async () => {
+            if (startButton.dataset.state === 'running') {
+                await stopScanner();
+                return;
+            }
+
+            startButton.disabled = true;
+            setStatus('Initializing camera scanner…');
+            const started = await startScanner();
+            startButton.disabled = false;
+
+            if (!started) {
+                startButton.classList.add('disabled');
+                cameraRegion.innerHTML = '<div class="text-danger text-center small">Camera scan unavailable in this browser.</div>';
+                setStatus('Camera scan unavailable. Please type QR token manually.', 'text-warning fw-semibold');
+            }
+        });
+
+        async function startScanner() {
+            if (window.Html5Qrcode) {
+                return startHtml5Scanner();
+            }
+            if ('BarcodeDetector' in window) {
+                fallbackController = await startFallbackScanner();
+                if (fallbackController) {
+                    startButton.dataset.state = 'running';
+                    startButton.textContent = 'Stop Camera Scan';
+                    setStatus('Camera scanner ready (fallback mode).');
+                    return true;
+                }
+            }
+            return false;
+        }
+
+        async function startHtml5Scanner() {
+            try {
+                if (!html5Scanner) {
+                    html5Scanner = new Html5Qrcode(cameraRegion.id);
+                }
+                cameraRegion.innerHTML = '';
+                await html5Scanner.start(
+                    { facingMode: 'environment' },
+                    { fps: 10, qrbox: 240 },
+                    (decodedText) => {
+                        if (!decodedText) {
+                            return;
+                        }
+                        qrInput.value = decodedText.trim();
+                        form.requestSubmit();
+                        stopScanner();
+                    },
+                    () => {}
+                );
+                startButton.dataset.state = 'running';
+                startButton.textContent = 'Stop Camera Scan';
+                setStatus('Camera scanner ready (high fidelity).');
+                return true;
+            } catch (error) {
+                console.error(error);
+                await stopScanner();
+                setStatus('Camera scanner could not start. Trying fallback…', 'text-warning fw-semibold');
+                return false;
+            }
+        }
+
+        async function stopScanner() {
+            if (html5Scanner) {
+                await html5Scanner.stop().catch(() => {});
+                html5Scanner.clear();
+                html5Scanner = null;
+            }
+            if (fallbackController) {
+                fallbackController.stop();
+                fallbackController = null;
+            }
+            startButton.dataset.state = '';
+            startButton.textContent = 'Start Camera Scan';
+            cameraRegion.innerHTML = '<div class="text-center text-muted small">Camera idle</div>';
+            startButton.classList.remove('disabled');
+            setStatus('Camera idle. Ready for manual scans.', 'text-white-50 fw-semibold');
+        }
+
+        async function startFallbackScanner() {
+            let stream;
+            let detector;
+            let detectionTimer;
+            const video = document.createElement('video');
+            video.className = 'w-100 rounded';
+            video.setAttribute('playsinline', 'true');
+            video.muted = true;
+            cameraRegion.innerHTML = '';
+            cameraRegion.appendChild(video);
+
+            try {
+                detector = new BarcodeDetector({ formats: ['qr_code'] });
+                stream = await navigator.mediaDevices.getUserMedia({ video: { facingMode: 'environment' } });
+                video.srcObject = stream;
+                await video.play();
+
+                const scanFrame = async () => {
+                    if (!detector) return;
+                    try {
+                        const codes = await detector.detect(video);
+                        if (codes.length > 0) {
+                            qrInput.value = codes[0].rawValue.trim();
+                            form.requestSubmit();
+                            stop();
+                            return;
+                        }
+                    } catch (error) {
+                        console.error(error);
+                    }
+                    detectionTimer = requestAnimationFrame(scanFrame);
+                };
+
+                detectionTimer = requestAnimationFrame(scanFrame);
+            } catch (error) {
+                console.error(error);
+                stop();
+                setStatus('Fallback scanner unavailable. Please allow camera access.', 'text-warning fw-semibold');
+                return null;
+            }
+
+            function stop() {
+                if (detectionTimer) {
+                    cancelAnimationFrame(detectionTimer);
+                    detectionTimer = null;
+                }
+                if (stream) {
+                    stream.getTracks().forEach((track) => track.stop());
+                    stream = null;
+                }
+                if (video.srcObject) {
+                    video.pause();
+                    video.srcObject = null;
+                }
+                detector = null;
+            }
+
+            return { stop };
+        }
+    }
+})();
diff --git a/src/auth/login.php b/src/auth/login.php
new file mode 100644
index 0000000..07e0438
--- /dev/null
+++ b/src/auth/login.php
@@ -0,0 +1,122 @@
+<?php
+require_once __DIR__ . '/../includes/bootstrap.php';
+
+if (is_logged_in()) {
+    redirect('admin/dashboard.php');
+}
+
+$appName = config('app.name', 'QR Attendance');
+$supportEmail = config('app.support_email', 'support@campus.local');
+$supportLink = 'mailto:' . $supportEmail;
+
+$errors = [];
+
+if (is_post()) {
+    if (!validate_csrf_token($_POST['csrf_token'] ?? null)) {
+        $errors[] = 'Invalid session token. Please refresh.';
+    } else {
+        $username = trim($_POST['username'] ?? '');
+        $password = trim($_POST['password'] ?? '');
+
+        if ($username === '' || $password === '') {
+            $errors[] = 'Username and password are required.';
+        } elseif (!attempt_login($username, $password)) {
+            $errors[] = 'Invalid credentials.';
+        } else {
+            add_flash('success', 'Welcome back!');
+            redirect('admin/dashboard.php');
+        }
+    }
+}
+
+render_header('Sign in', ['hide_nav' => true]);
+?>
+<section class="google-auth-shell d-flex flex-column align-items-center justify-content-center gap-4 w-100">
+    <div class="text-center">
+        <span class="badge text-bg-light px-3 py-2 text-uppercase fw-semibold">Admin Portal</span>
+        <p class="text-muted mb-0">Use your institution-issued credentials to continue.</p>
+    </div>
+    <div class="google-auth-card card shadow-sm border-0">
+        <div class="text-center mb-4 google-auth-head">
+            <div class="google-logo" aria-label="<?= sanitize($appName) ?>">
+                <span class="qr-logo-icon" aria-hidden="true">
+                    <svg viewBox="0 0 64 64" role="presentation" focusable="false">
+                        <rect x="2" y="2" width="20" height="20" rx="4" fill="#0f5132"></rect>
+                        <rect x="42" y="2" width="20" height="20" rx="4" fill="#1b7f5c"></rect>
+                        <rect x="2" y="42" width="20" height="20" rx="4" fill="#146946"></rect>
+                        <rect x="26" y="26" width="12" height="12" rx="2" fill="#0f5132"></rect>
+                        <rect x="44" y="36" width="12" height="12" rx="2" fill="#1b7f5c"></rect>
+                        <rect x="32" y="48" width="8" height="8" rx="2" fill="#146946"></rect>
+                        <rect x="24" y="8" width="8" height="8" rx="2" fill="#1b7f5c"></rect>
+                        <rect x="8" y="32" width="8" height="8" rx="2" fill="#0f5132"></rect>
+                    </svg>
+                </span>
+                <span class="google-logo-text"><?= sanitize($appName) ?></span>
+            </div>
+            <h1 class="google-title mb-1">Sign in</h1>
+            <p class="google-subtitle">Use your administrator account</p>
+        </div>
+        <?php if ($errors): ?>
+            <div class="alert alert-danger mb-4">
+                <?php foreach ($errors as $error): ?>
+                    <div><?= sanitize($error) ?></div>
+                <?php endforeach; ?>
+            </div>
+        <?php endif; ?>
+        <form method="post" novalidate class="google-form">
+            <input type="hidden" name="csrf_token" value="<?= sanitize(ensure_csrf_token()) ?>">
+            <div class="google-field">
+                <input type="text"
+                       name="username"
+                       id="username"
+                       class="google-input"
+                       placeholder=" "
+                       value="<?= sanitize($_POST['username'] ?? '') ?>"
+                       autocomplete="username"
+                       required>
+                <label for="username" class="google-label">Email or username</label>
+            </div>
+            <div class="google-field">
+                <input type="password"
+                       name="password"
+                       id="password"
+                       class="google-input"
+                       placeholder=" "
+                       autocomplete="current-password"
+                       required
+                       data-password-input>
+                <label for="password" class="google-label">Password</label>
+                <button type="button" class="google-toggle" data-password-toggle>Show</button>
+            </div>
+            <div class="google-links">
+                <a href="<?= sanitize($supportLink) ?>">Need help?</a>
+            </div>
+            <div class="google-actions">
+                <button type="button" class="btn btn-link google-alt-action px-0">Create account</button>
+                <button type="submit" class="btn btn-primary google-primary-action">
+                    Next
+                </button>
+            </div>
+        </form>
+        <p class="google-footnote text-muted text-center">
+            This console is managed by <?= sanitize($appName) ?> IT. By continuing, you agree to internal security policies.
+        </p>
+    </div>
+</section>
+<?php
+?>
+<script>
+document.addEventListener('DOMContentLoaded', () => {
+    const input = document.querySelector('[data-password-input]');
+    const toggle = document.querySelector('[data-password-toggle]');
+    if (!input || !toggle) return;
+
+    toggle.addEventListener('click', () => {
+        const isHidden = input.type === 'password';
+        input.type = isHidden ? 'text' : 'password';
+        toggle.textContent = isHidden ? 'Hide' : 'Show';
+    });
+});
+</script>
+<?php
+render_footer(['extra_js' => []]);
diff --git a/src/auth/logout.php b/src/auth/logout.php
new file mode 100644
index 0000000..a7f036e
--- /dev/null
+++ b/src/auth/logout.php
@@ -0,0 +1,6 @@
+<?php
+require __DIR__ . '/../includes/bootstrap.php';
+
+logout_user();
+add_flash('success', 'You have been signed out.');
+redirect('auth/login.php');
diff --git a/src/config/config.php b/src/config/config.php
new file mode 100644
index 0000000..758f06e
--- /dev/null
+++ b/src/config/config.php
@@ -0,0 +1,22 @@
+<?php
+declare(strict_types=1);
+
+return [
+    'app' => [
+        'name' => getenv('APP_NAME') ?: 'QR Attendance System',
+        'timezone' => getenv('APP_TZ') ?: 'Asia/Manila',
+        'base_url' => rtrim(getenv('APP_BASE_URL') ?: '', '/'),
+    ],
+    'db' => [
+        'host' => getenv('DB_HOST') ?: '127.0.0.1',
+        'port' => getenv('DB_PORT') ?: '3306',
+        'name' => getenv('DB_NAME') ?: 'attendance_system',
+        'user' => getenv('DB_USER') ?: 'root',
+        'pass' => getenv('DB_PASS') ?: '',
+        'charset' => 'utf8mb4',
+    ],
+    'qr' => [
+        'provider' => strtolower(getenv('QR_PROVIDER') ?: 'auto'),
+        'goqr_size' => getenv('QR_SIZE') ?: '300x300',
+    ],
+];
diff --git a/src/d4c.zip b/src/d4c.zip
new file mode 100644
index 0000000..05c6bbf
Binary files /dev/null and b/src/d4c.zip differ
diff --git a/src/includes/auth.php b/src/includes/auth.php
new file mode 100644
index 0000000..fa04aca
--- /dev/null
+++ b/src/includes/auth.php
@@ -0,0 +1,73 @@
+<?php
+declare(strict_types=1);
+
+function current_user(): ?array
+{
+    return $_SESSION['user'] ?? null;
+}
+
+function is_logged_in(): bool
+{
+    return current_user() !== null;
+}
+
+function require_login(): void
+{
+    if (!is_logged_in()) {
+        redirect('auth/login.php');
+    }
+}
+
+function require_admin(): void
+{
+    $user = current_user();
+    if (!$user || $user['role'] !== 'admin') {
+        http_response_code(403);
+        echo 'Forbidden';
+        exit;
+    }
+}
+
+function attempt_login(string $username, string $password): bool
+{
+    $pdo = db();
+    $stmt = $pdo->prepare('SELECT * FROM users WHERE username = :username AND status = 1 LIMIT 1');
+    $stmt->execute(['username' => $username]);
+    $user = $stmt->fetch();
+
+    if (!$user) {
+        return false;
+    }
+
+    if (!password_verify($password, $user['password'])) {
+        return false;
+    }
+
+    $_SESSION['user'] = [
+        'id' => $user['id'],
+        'username' => $user['username'],
+        'full_name' => $user['full_name'],
+        'role' => $user['role'],
+        'email' => $user['email'],
+    ];
+
+    return true;
+}
+
+function logout_user(): void
+{
+    $_SESSION = [];
+    if (ini_get('session.use_cookies')) {
+        $params = session_get_cookie_params();
+        setcookie(
+            session_name(),
+            '',
+            time() - 42000,
+            $params['path'],
+            $params['domain'],
+            $params['secure'],
+            $params['httponly']
+        );
+    }
+    session_destroy();
+}
diff --git a/src/includes/bootstrap.php b/src/includes/bootstrap.php
new file mode 100644
index 0000000..0e8500a
--- /dev/null
+++ b/src/includes/bootstrap.php
@@ -0,0 +1,16 @@
+<?php
+declare(strict_types=1);
+
+if (session_status() === PHP_SESSION_NONE) {
+    session_start();
+}
+
+require_once __DIR__ . '/helpers.php';
+require_once __DIR__ . '/db.php';
+require_once __DIR__ . '/auth.php';
+require_once __DIR__ . '/layout.php';
+require_once __DIR__ . '/setup.php';
+
+date_default_timezone_set(config('app.timezone', 'UTC'));
+
+ensure_default_admin();
diff --git a/src/includes/db.php b/src/includes/db.php
new file mode 100644
index 0000000..45d848b
--- /dev/null
+++ b/src/includes/db.php
@@ -0,0 +1,30 @@
+<?php
+declare(strict_types=1);
+
+function db(): PDO
+{
+    static $pdo;
+
+    if ($pdo === null) {
+        $config = config('db');
+        $dsn = sprintf(
+            'mysql:host=%s;port=%s;dbname=%s;charset=%s',
+            $config['host'],
+            $config['port'],
+            $config['name'],
+            $config['charset']
+        );
+
+        $pdo = new PDO(
+            $dsn,
+            $config['user'],
+            $config['pass'],
+            [
+                PDO::ATTR_ERRMODE => PDO::ERRMODE_EXCEPTION,
+                PDO::ATTR_DEFAULT_FETCH_MODE => PDO::FETCH_ASSOC,
+            ]
+        );
+    }
+
+    return $pdo;
+}
diff --git a/src/includes/helpers.php b/src/includes/helpers.php
new file mode 100644
index 0000000..8e64c72
--- /dev/null
+++ b/src/includes/helpers.php
@@ -0,0 +1,219 @@
+<?php
+declare(strict_types=1);
+
+function app_config(): array
+{
+    static $config;
+    if ($config === null) {
+        $configPath = __DIR__ . '/../config/config.php';
+        if (!file_exists($configPath)) {
+            throw new RuntimeException('Config file missing.');
+        }
+        $config = require $configPath;
+    }
+
+    return $config;
+}
+
+function config(string $key, mixed $default = null): mixed
+{
+    $config = app_config();
+    $segments = explode('.', $key);
+    $value = $config;
+
+    foreach ($segments as $segment) {
+        if (!is_array($value) || !array_key_exists($segment, $value)) {
+            return $default;
+        }
+        $value = $value[$segment];
+    }
+
+    return $value;
+}
+
+function url_for(string $path = ''): string
+{
+    $base = resolve_base_url();
+    $path = '/' . ltrim($path, '/');
+
+    if ($base === '' || $base === '/') {
+        return $path;
+    }
+
+    return rtrim($base, '/') . $path;
+}
+
+function asset_url(string $path): string
+{
+    return url_for('assets/' . ltrim($path, '/'));
+}
+
+function resolve_base_url(): string
+{
+    static $base = null;
+    if ($base !== null) {
+        return $base;
+    }
+
+    $configured = config('app.base_url', '');
+    if ($configured !== '') {
+        if (!preg_match('#^https?://#i', $configured)) {
+            $configured = '/' . ltrim($configured, '/');
+        }
+        $base = rtrim($configured, '/') ?: '/';
+
+        return $base;
+    }
+
+    $documentRoot = $_SERVER['DOCUMENT_ROOT'] ?? '';
+    $documentRoot = $documentRoot ? rtrim(normalize_path($documentRoot), '/') : '';
+    $appRoot = rtrim(normalize_path(dirname(__DIR__)), '/');
+
+    if ($documentRoot && strpos($appRoot, $documentRoot) === 0) {
+        $relative = substr($appRoot, strlen($documentRoot));
+        $relative = trim($relative, '/');
+        $base = $relative === '' ? '' : '/' . $relative;
+    } else {
+        $base = '';
+    }
+
+    return $base;
+}
+
+function normalize_path(string $path): string
+{
+    $real = realpath($path);
+
+    return str_replace('\\', '/', $real ?: $path);
+}
+
+function redirect(string $path): void
+{
+    if (preg_match('#^https?://#i', $path)) {
+        $target = $path;
+    } else {
+        $target = url_for($path);
+    }
+
+    header('Location: ' . $target);
+    exit;
+}
+
+function sanitize(?string $value, int $flags = ENT_QUOTES): string
+{
+    return htmlspecialchars((string) $value, $flags, 'UTF-8');
+}
+
+function add_flash(string $type, string $message): void
+{
+    $_SESSION['flash'][$type][] = $message;
+}
+
+function get_flashes(): array
+{
+    $messages = $_SESSION['flash'] ?? [];
+    unset($_SESSION['flash']);
+
+    return $messages;
+}
+
+function is_post(): bool
+{
+    return strtoupper($_SERVER['REQUEST_METHOD'] ?? '') === 'POST';
+}
+
+function random_token(int $bytes = 8): string
+{
+    return bin2hex(random_bytes($bytes));
+}
+
+function format_datetime(?string $value, string $format = 'M d, Y h:i A'): string
+{
+    if (!$value) {
+        return '—';
+    }
+    $date = new DateTime($value);
+
+    return $date->format($format);
+}
+
+function format_date(?string $value, string $format = 'M d, Y'): string
+{
+    if (!$value) {
+        return '—';
+    }
+    $date = new DateTime($value);
+
+    return $date->format($format);
+}
+
+function selected(mixed $current, mixed $value): string
+{
+    return (string) $current === (string) $value ? 'selected' : '';
+}
+
+function checked(bool $condition): string
+{
+    return $condition ? 'checked' : '';
+}
+
+function paginate(PDO $pdo, string $countSql, array $params = [], int $perPage = 10): array
+{
+    $page = max(1, (int) ($_GET['page'] ?? 1));
+    $stmt = $pdo->prepare($countSql);
+    $stmt->execute($params);
+    $total = (int) $stmt->fetchColumn();
+    $pages = max(1, (int) ceil($total / $perPage));
+    $page = min($page, $pages);
+    $offset = ($page - 1) * $perPage;
+
+    return [
+        'page' => $page,
+        'per_page' => $perPage,
+        'total' => $total,
+        'pages' => $pages,
+        'offset' => $offset,
+    ];
+}
+
+function render_pagination(array $pagination, string $basePath = '', array $query = []): void
+{
+    if (($pagination['pages'] ?? 1) <= 1) {
+        return;
+    }
+
+    $base = $basePath ?: parse_url($_SERVER['REQUEST_URI'], PHP_URL_PATH);
+    ?>
+    <nav aria-label="Pagination" class="mt-4">
+        <ul class="pagination">
+            <?php for ($i = 1; $i <= $pagination['pages']; $i++): ?>
+                <?php
+                $queryString = http_build_query(array_merge($query, ['page' => $i]));
+                $href = $base . '?' . $queryString;
+                ?>
+                <li class="page-item <?= $pagination['page'] === $i ? 'active' : '' ?>">
+                    <a class="page-link" href="<?= sanitize($href) ?>"><?= $i ?></a>
+                </li>
+            <?php endfor; ?>
+        </ul>
+    </nav>
+    <?php
+}
+
+function encode_record(array $record): string
+{
+    return base64_encode(json_encode($record, JSON_UNESCAPED_UNICODE));
+}
+function ensure_csrf_token(): string
+{
+    if (!isset($_SESSION['csrf_token'])) {
+        $_SESSION['csrf_token'] = random_token(16);
+    }
+
+    return $_SESSION['csrf_token'];
+}
+
+function validate_csrf_token(?string $token): bool
+{
+    return isset($_SESSION['csrf_token']) && hash_equals($_SESSION['csrf_token'], (string) $token);
+}
diff --git a/src/includes/layout.php b/src/includes/layout.php
new file mode 100644
index 0000000..5394762
--- /dev/null
+++ b/src/includes/layout.php
@@ -0,0 +1,171 @@
+<?php
+declare(strict_types=1);
+
+function render_header(string $title, array $options = []): void
+{
+    $active = $options['active'] ?? '';
+    $hideNav = $options['hide_nav'] ?? false;
+    $extraCss = $options['extra_css'] ?? [];
+    $appName = config('app.name', 'QR Attendance');
+    $user = current_user();
+    $flashes = get_flashes();
+
+    $GLOBALS['__layout_hide_nav'] = $hideNav;
+
+    header('Content-Type: text/html; charset=utf-8');
+    ?>
+    <!doctype html>
+    <html lang="en" data-bs-theme="light">
+    <head>
+        <meta charset="utf-8">
+        <meta name="viewport" content="width=device-width, initial-scale=1">
+        <title><?= sanitize($title) ?> | <?= sanitize($appName) ?></title>
+        <link rel="stylesheet" href="https://cdn.jsdelivr.net/npm/bootstrap@5.3.3/dist/css/bootstrap.min.css">
+        <link rel="stylesheet" href="<?= asset_url('css/style.css') ?>">
+        <?php foreach ($extraCss as $css): ?>
+            <link rel="stylesheet" href="<?= sanitize($css) ?>">
+        <?php endforeach; ?>
+    </head>
+    <body>
+    <?php if ($hideNav): ?>
+        <main class="auth-shell container py-5">
+    <?php else: ?>
+        <div class="app-shell">
+            <aside class="sidebar bg-white border-end">
+                <div class="sidebar-brand mb-4">
+                    <div class="sidebar-icon bg-primary-subtle text-primary">QR</div>
+                    <div>
+                        <div class="fw-semibold text-primary">QR Code Attendance</div>
+                        <small class="text-muted">Admin Console</small>
+                    </div>
+                </div>
+                <nav class="sidebar-nav flex-grow-1">
+                    <?php foreach (nav_items() as $item): ?>
+                        <?php if (!$item['show']): continue; endif; ?>
+                        <a class="sidebar-link <?= $active === $item['key'] ? 'active' : '' ?>"
+                           href="<?= url_for($item['path']) ?>">
+                            <?= sanitize($item['label']) ?>
+                        </a>
+                    <?php endforeach; ?>
+                </nav>
+                <?php if ($user): ?>
+                    <div class="sidebar-user mt-4">
+                        <div>
+                            <div class="fw-semibold"><?= sanitize($user['full_name']) ?></div>
+                            <small class="text-muted text-uppercase"><?= sanitize($user['role']) ?></small>
+                        </div>
+                        <a href="<?= url_for('auth/logout.php') ?>" class="btn btn-sm btn-outline-primary ms-auto">
+                            Logout
+                        </a>
+                    </div>
+                <?php endif; ?>
+            </aside>
+            <div class="content-area flex-grow-1">
+                <header class="content-topbar bg-white border-bottom d-flex justify-content-between align-items-center px-4 py-3">
+                    <div class="d-flex align-items-center gap-3">
+                        <button class="btn btn-outline-secondary btn-sm sidebar-toggle" type="button" data-sidebar-toggle>
+                            <span class="sidebar-toggle-icon">&#9776;</span>
+                        </button>
+                        <div class="text-muted small">QR Attendance System</div>
+                        <h1 class="h5 mb-0 mb-0"><?= sanitize($title) ?></h1>
+                    </div>
+                    <span class="badge text-bg-light"><?= date('D, M j') ?></span>
+                </header>
+                <main class="content-body px-4 py-4">
+    <?php endif; ?>
+        <?php foreach ($flashes as $type => $messages): ?>
+            <?php foreach ($messages as $message): ?>
+                <div class="alert alert-<?= sanitize($type) ?> alert-dismissible fade show" role="alert">
+                    <?= sanitize($message) ?>
+                    <button type="button" class="btn-close" data-bs-dismiss="alert" aria-label="Close"></button>
+                </div>
+            <?php endforeach; ?>
+        <?php endforeach; ?>
+    <?php
+}
+
+function render_footer(array $options = []): void
+{
+    $extraJs = $options['extra_js'] ?? [];
+    $hideNav = $GLOBALS['__layout_hide_nav'] ?? false;
+    ?>
+    <?php if ($hideNav): ?>
+        </main>
+    <?php else: ?>
+                </main>
+            </div>
+        </div>
+    <?php endif; ?>
+    <?php foreach ($extraJs as $script): ?>
+        <script src="<?= sanitize($script) ?>"></script>
+    <?php endforeach; ?>
+    <script src="https://cdn.jsdelivr.net/npm/bootstrap@5.3.3/dist/js/bootstrap.bundle.min.js"></script>
+    <script src="<?= asset_url('js/admin.js') ?>" defer></script>
+    <script src="<?= asset_url('js/scan.js') ?>" defer></script>
+    </body>
+    </html>
+    <?php
+}
+
+function nav_items(): array
+{
+    $user = current_user();
+    $isAdmin = $user && $user['role'] === 'admin';
+
+    return [
+        [
+            'key' => 'dashboard',
+            'label' => 'Dashboard',
+            'path' => 'admin/dashboard.php',
+            'show' => (bool) $user,
+        ],
+        [
+            'key' => 'students',
+            'label' => 'Students',
+            'path' => 'admin/students.php',
+            'show' => (bool) $user,
+        ],
+        [
+            'key' => 'activities',
+            'label' => 'Activities',
+            'path' => 'admin/activities.php',
+            'show' => (bool) $user,
+        ],
+        [
+            'key' => 'courses',
+            'label' => 'Courses',
+            'path' => 'admin/courses.php',
+            'show' => (bool) $user,
+        ],
+        [
+            'key' => 'departments',
+            'label' => 'Departments',
+            'path' => 'admin/departments.php',
+            'show' => (bool) $user,
+        ],
+        [
+            'key' => 'attendance',
+            'label' => 'Scan Center',
+            'path' => 'admin/attendance.php',
+            'show' => $isAdmin,
+        ],
+        [
+            'key' => 'reports',
+            'label' => 'Reports',
+            'path' => 'admin/reports.php',
+            'show' => (bool) $user,
+        ],
+        [
+            'key' => 'settings',
+            'label' => 'Settings',
+            'path' => 'admin/settings.php',
+            'show' => $isAdmin,
+        ],
+        [
+            'key' => 'users',
+            'label' => 'Users',
+            'path' => 'admin/users.php',
+            'show' => $isAdmin,
+        ],
+    ];
+}
diff --git a/src/includes/phpqrcode/CHANGELOG b/src/includes/phpqrcode/CHANGELOG
new file mode 100644
index 0000000..1088530
--- /dev/null
+++ b/src/includes/phpqrcode/CHANGELOG
@@ -0,0 +1,38 @@
+* 1.0.0 build 2010031920 
+
+  - first public release
+  - help in readme, install
+  - cleanup ans separation of QRtools and QRspec
+  - now TCPDF binding requires minimal changes in TCPDF, having most of job
+    done in QRtools tcpdfBarcodeArray
+  - nicer QRtools::timeBenchmark output
+  - license and copyright notices in files
+  - indent cleanup - from tab to 4spc, keep it that way please :)
+  - sf project, repository, wiki
+  - simple code generator in index.php
+  
+* 1.1.0 build 2010032113
+
+  - added merge tool wich generate merged version of code
+    located in phpqrcode.php
+  - splited qrconst.php from qrlib.php
+  
+* 1.1.1 build 2010032405
+
+  - patch by Rick Seymour allowing saving PNG and displaying it at the same time
+  - added version info in VERSION file
+  - modified merge tool to include version info into generated file
+  - fixed e-mail in almost all head comments
+  
+* 1.1.2 build 2010032722
+
+  - full integration with TCPDF thanks to Nicola Asuni, it's author
+  - fixed bug with alphanumeric encoding detection
+  
+* 1.1.3 build 2010081807
+
+  - short opening tags replaced with standard ones
+  
+* 1.1.4 build 2010100721
+
+  - added missing static keyword QRinput::check (found by Luke Brookhart, Onjax LLC)
diff --git a/src/includes/phpqrcode/INSTALL b/src/includes/phpqrcode/INSTALL
new file mode 100644
index 0000000..eac6b07
--- /dev/null
+++ b/src/includes/phpqrcode/INSTALL
@@ -0,0 +1,67 @@
+== REQUIREMENTS ==
+
+ * PHP5
+ * PHP GD2 extension with JPEG and PNG support
+ 
+== INSTALLATION ==
+
+If you want to recreate cache by yourself make sure cache directory is
+writable and you have permisions to write into it. Also make sure you are
+able to read files in it if you have cache option enabled
+ 
+== CONFIGURATION ==
+
+Feel free to modify config constants in qrconfig.php file. Read about it in
+provided comments and project wiki page (links in README file)
+
+== QUICK START ==
+
+Notice: probably you should'nt use all of this in same script :)
+
+<?phpb
+
+//include only that one, rest required files will be included from it
+include "qrlib.php"
+
+//write code into file, Error corection lecer is lowest, L (one form: L,M,Q,H)
+//each code square will be 4x4 pixels (4x zoom)
+//code will have 2 code squares white boundary around 
+
+QRcode::png('PHP QR Code :)', 'test.png', 'L', 4, 2);
+
+//same as above but outputs file directly into browser (with appr. header etc.)
+//all other settings are default
+//WARNING! it should be FIRST and ONLY output generated by script, otherwise
+//rest of output will land inside PNG binary, breaking it for sure
+QRcode::png('PHP QR Code :)');
+
+//show benchmark
+QRtools::timeBenchmark();
+
+//rebuild cache
+QRtools::buildCache();
+
+//code generated in text mode - as a binary table
+//then displayed out as HTML using Unicode block building chars :)
+$tab = $qr->encode('PHP QR Code :)');
+QRspec::debug($tab, true);
+
+== TCPDF INTEGRATION ==
+
+Inside bindings/tcpdf you will find slightly modified 2dbarcodes.php.
+Instal phpqrcode liblaty inside tcpdf folder, then overwrite (or merge)
+2dbarcodes.php 
+
+Then use similar as example #50 from TCPDF examples:
+
+<?php
+
+$style = array(
+    'border' => true,
+    'padding' => 4,
+    'fgcolor' => array(0,0,0),
+    'bgcolor' => false, //array(255,255,255)
+);
+
+//code name: QR, specify error correction level after semicolon (L,M,Q,H)
+$pdf->write2DBarcode('PHP QR Code :)', 'QR,L', '', '', 30, 30, $style, 'N');
diff --git a/src/includes/phpqrcode/LICENSE b/src/includes/phpqrcode/LICENSE
new file mode 100644
index 0000000..1883303
--- /dev/null
+++ b/src/includes/phpqrcode/LICENSE
@@ -0,0 +1,165 @@
+                  GNU LESSER GENERAL PUBLIC LICENSE
+                       Version 3, 29 June 2007
+
+ Copyright (C) 2007 Free Software Foundation, Inc. <http://fsf.org/>
+ Everyone is permitted to copy and distribute verbatim copies
+ of this license document, but changing it is not allowed.
+
+
+  This version of the GNU Lesser General Public License incorporates
+the terms and conditions of version 3 of the GNU General Public
+License, supplemented by the additional permissions listed below.
+
+  0. Additional Definitions.
+
+  As used herein, "this License" refers to version 3 of the GNU Lesser
+General Public License, and the "GNU GPL" refers to version 3 of the GNU
+General Public License.
+
+  "The Library" refers to a covered work governed by this License,
+other than an Application or a Combined Work as defined below.
+
+  An "Application" is any work that makes use of an interface provided
+by the Library, but which is not otherwise based on the Library.
+Defining a subclass of a class defined by the Library is deemed a mode
+of using an interface provided by the Library.
+
+  A "Combined Work" is a work produced by combining or linking an
+Application with the Library.  The particular version of the Library
+with which the Combined Work was made is also called the "Linked
+Version".
+
+  The "Minimal Corresponding Source" for a Combined Work means the
+Corresponding Source for the Combined Work, excluding any source code
+for portions of the Combined Work that, considered in isolation, are
+based on the Application, and not on the Linked Version.
+
+  The "Corresponding Application Code" for a Combined Work means the
+object code and/or source code for the Application, including any data
+and utility programs needed for reproducing the Combined Work from the
+Application, but excluding the System Libraries of the Combined Work.
+
+  1. Exception to Section 3 of the GNU GPL.
+
+  You may convey a covered work under sections 3 and 4 of this License
+without being bound by section 3 of the GNU GPL.
+
+  2. Conveying Modified Versions.
+
+  If you modify a copy of the Library, and, in your modifications, a
+facility refers to a function or data to be supplied by an Application
+that uses the facility (other than as an argument passed when the
+facility is invoked), then you may convey a copy of the modified
+version:
+
+   a) under this License, provided that you make a good faith effort to
+   ensure that, in the event an Application does not supply the
+   function or data, the facility still operates, and performs
+   whatever part of its purpose remains meaningful, or
+
+   b) under the GNU GPL, with none of the additional permissions of
+   this License applicable to that copy.
+
+  3. Object Code Incorporating Material from Library Header Files.
+
+  The object code form of an Application may incorporate material from
+a header file that is part of the Library.  You may convey such object
+code under terms of your choice, provided that, if the incorporated
+material is not limited to numerical parameters, data structure
+layouts and accessors, or small macros, inline functions and templates
+(ten or fewer lines in length), you do both of the following:
+
+   a) Give prominent notice with each copy of the object code that the
+   Library is used in it and that the Library and its use are
+   covered by this License.
+
+   b) Accompany the object code with a copy of the GNU GPL and this license
+   document.
+
+  4. Combined Works.
+
+  You may convey a Combined Work under terms of your choice that,
+taken together, effectively do not restrict modification of the
+portions of the Library contained in the Combined Work and reverse
+engineering for debugging such modifications, if you also do each of
+the following:
+
+   a) Give prominent notice with each copy of the Combined Work that
+   the Library is used in it and that the Library and its use are
+   covered by this License.
+
+   b) Accompany the Combined Work with a copy of the GNU GPL and this license
+   document.
+
+   c) For a Combined Work that displays copyright notices during
+   execution, include the copyright notice for the Library among
+   these notices, as well as a reference directing the user to the
+   copies of the GNU GPL and this license document.
+
+   d) Do one of the following:
+
+       0) Convey the Minimal Corresponding Source under the terms of this
+       License, and the Corresponding Application Code in a form
+       suitable for, and under terms that permit, the user to
+       recombine or relink the Application with a modified version of
+       the Linked Version to produce a modified Combined Work, in the
+       manner specified by section 6 of the GNU GPL for conveying
+       Corresponding Source.
+
+       1) Use a suitable shared library mechanism for linking with the
+       Library.  A suitable mechanism is one that (a) uses at run time
+       a copy of the Library already present on the user's computer
+       system, and (b) will operate properly with a modified version
+       of the Library that is interface-compatible with the Linked
+       Version.
+
+   e) Provide Installation Information, but only if you would otherwise
+   be required to provide such information under section 6 of the
+   GNU GPL, and only to the extent that such information is
+   necessary to install and execute a modified version of the
+   Combined Work produced by recombining or relinking the
+   Application with a modified version of the Linked Version. (If
+   you use option 4d0, the Installation Information must accompany
+   the Minimal Corresponding Source and Corresponding Application
+   Code. If you use option 4d1, you must provide the Installation
+   Information in the manner specified by section 6 of the GNU GPL
+   for conveying Corresponding Source.)
+
+  5. Combined Libraries.
+
+  You may place library facilities that are a work based on the
+Library side by side in a single library together with other library
+facilities that are not Applications and are not covered by this
+License, and convey such a combined library under terms of your
+choice, if you do both of the following:
+
+   a) Accompany the combined library with a copy of the same work based
+   on the Library, uncombined with any other library facilities,
+   conveyed under the terms of this License.
+
+   b) Give prominent notice with the combined library that part of it
+   is a work based on the Library, and explaining where to find the
+   accompanying uncombined form of the same work.
+
+  6. Revised Versions of the GNU Lesser General Public License.
+
+  The Free Software Foundation may publish revised and/or new versions
+of the GNU Lesser General Public License from time to time. Such new
+versions will be similar in spirit to the present version, but may
+differ in detail to address new problems or concerns.
+
+  Each version is given a distinguishing version number. If the
+Library as you received it specifies that a certain numbered version
+of the GNU Lesser General Public License "or any later version"
+applies to it, you have the option of following the terms and
+conditions either of that published version or of any later version
+published by the Free Software Foundation. If the Library as you
+received it does not specify a version number of the GNU Lesser
+General Public License, you may choose any version of the GNU Lesser
+General Public License ever published by the Free Software Foundation.
+
+  If the Library as you received it specifies that a proxy can decide
+whether future versions of the GNU Lesser General Public License shall
+apply, that proxy's public statement of acceptance of any version is
+permanent authorization for you to choose that version for the
+Library.
diff --git a/src/includes/phpqrcode/README b/src/includes/phpqrcode/README
new file mode 100644
index 0000000..a022fb5
--- /dev/null
+++ b/src/includes/phpqrcode/README
@@ -0,0 +1,45 @@
+This is PHP implementation of QR Code 2-D barcode generator. It is pure-php
+LGPL-licensed implementation based on C libqrencode by Kentaro Fukuchi.
+
+== LICENSING ==
+
+Copyright (C) 2010 by Dominik Dzienia 
+
+This library is free software; you can redistribute it and/or modify it under
+the terms of the GNU Lesser General Public License as published by the Free
+Software Foundation; either version 3 of the License, or any later version.
+
+This library is distributed in the hope that it will be useful, but WITHOUT ANY
+WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A
+PARTICULAR PURPOSE. See the GNU Lesser General Public License (LICENSE file)
+for more details.
+
+You should have received a copy of the GNU Lesser General Public License along
+with this library; if not, write to the Free Software Foundation, Inc., 51
+Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
+
+== INSTALATION AND USAGE ==
+
+ * INSTALL file
+ * http://sourceforge.net/apps/mediawiki/phpqrcode/index.php?title=Main_Page
+
+== CONTACT ==
+
+Fell free to contact me via e-mail (deltalab at poczta dot fm) or using
+folowing project pages:
+
+ * http://sourceforge.net/projects/phpqrcode/
+ * http://phpqrcode.sourceforge.net/
+  
+== ACKNOWLEDGMENTS ==
+
+Based on C libqrencode library (ver. 3.1.1) 
+Copyright (C) 2006-2010 by Kentaro Fukuchi
+http://megaui.net/fukuchi/works/qrencode/index.en.html
+
+QR Code is registered trademarks of DENSO WAVE INCORPORATED in JAPAN and other
+countries.
+
+Reed-Solomon code encoder is written by Phil Karn, KA9Q.
+Copyright (C) 2002, 2003, 2004, 2006 Phil Karn, KA9Q
+ 
\ No newline at end of file
diff --git a/src/includes/phpqrcode/VERSION b/src/includes/phpqrcode/VERSION
new file mode 100644
index 0000000..9f99279
--- /dev/null
+++ b/src/includes/phpqrcode/VERSION
@@ -0,0 +1,2 @@
+1.1.4
+2010100721
\ No newline at end of file
diff --git a/src/includes/phpqrcode/bindings/tcpdf/qrcode.php b/src/includes/phpqrcode/bindings/tcpdf/qrcode.php
new file mode 100644
index 0000000..7995460
--- /dev/null
+++ b/src/includes/phpqrcode/bindings/tcpdf/qrcode.php
@@ -0,0 +1,2875 @@
+<?php
+//============================================================+
+// File name   : qrcode.php
+// Begin       : 2010-03-22
+// Last Update : 2010-03-29
+// Version     : 1.0.002
+// License     : GNU LGPL v.3 (http://www.gnu.org/copyleft/lesser.html)
+// 	----------------------------------------------------------------------------
+//
+// 	This library is free software; you can redistribute it and/or
+// 	modify it under the terms of the GNU Lesser General Public
+// 	License as published by the Free Software Foundation; either
+// 	version 3 of the License, or any later version.
+//
+// 	This library is distributed in the hope that it will be useful,
+// 	but WITHOUT ANY WARRANTY; without even the implied warranty of
+// 	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+// 	Lesser General Public License for more details.
+//
+// 	You should have received a copy of the GNU Lesser General Public
+// 	License along with this library; if not, write to the Free Software
+// 	Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
+//  or browse http://www.gnu.org/copyleft/lesser.html
+//
+//  ----------------------------------------------------------------------------
+//
+// DESCRIPTION :
+//
+// Class to create QR-code arrays for TCPDF class.
+// QR Code symbol is a 2D barcode that can be scanned by
+// handy terminals such as a mobile phone with CCD.
+// The capacity of QR Code is up to 7000 digits or 4000
+// characters, and has high robustness.
+// This class supports QR Code model 2, described in
+// JIS (Japanese Industrial Standards) X0510:2004
+// or ISO/IEC 18004.
+// Currently the following features are not supported:
+// ECI and FNC1 mode, Micro QR Code, QR Code model 1,
+// Structured mode.
+//
+// This class is derived from the following projects:
+// ---------------------------------------------------------
+// "PHP QR Code encoder"
+// License: GNU-LGPLv3
+// Copyright (C) 2010 by Dominik Dzienia <deltalab at poczta dot fm>
+// http://phpqrcode.sourceforge.net/
+// https://sourceforge.net/projects/phpqrcode/
+//
+// The "PHP QR Code encoder" is based on
+// "C libqrencode library" (ver. 3.1.1)
+// License: GNU-LGPL 2.1
+// Copyright (C) 2006-2010 by Kentaro Fukuchi
+// http://megaui.net/fukuchi/works/qrencode/index.en.html
+//
+// Reed-Solomon code encoder is written by Phil Karn, KA9Q.
+// Copyright (C) 2002-2006 Phil Karn, KA9Q
+//
+// QR Code is registered trademark of DENSO WAVE INCORPORATED
+// http://www.denso-wave.com/qrcode/index-e.html
+// ---------------------------------------------------------
+//
+// Author: Nicola Asuni
+//
+// (c) Copyright 2010:
+//               Nicola Asuni
+//               Tecnick.com S.r.l.
+//               Via della Pace, 11
+//               09044 Quartucciu (CA)
+//               ITALY
+//               www.tecnick.com
+//               info@tecnick.com
+//============================================================+
+
+/**
+ * Class to create QR-code arrays for TCPDF class.
+ * QR Code symbol is a 2D barcode that can be scanned by handy terminals such as a mobile phone with CCD.
+ * The capacity of QR Code is up to 7000 digits or 4000 characters, and has high robustness.
+ * This class supports QR Code model 2, described in JIS (Japanese Industrial Standards) X0510:2004 or ISO/IEC 18004.
+ * Currently the following features are not supported: ECI and FNC1 mode, Micro QR Code, QR Code model 1, Structured mode.
+ *
+ * This class is derived from "PHP QR Code encoder" by Dominik Dzienia (http://phpqrcode.sourceforge.net/) based on "libqrencode C library 3.1.1." by Kentaro Fukuchi (http://megaui.net/fukuchi/works/qrencode/index.en.html), contains Reed-Solomon code written by Phil Karn, KA9Q. QR Code is registered trademark of DENSO WAVE INCORPORATED (http://www.denso-wave.com/qrcode/index-e.html).
+ * Please read comments on this class source file for full copyright and license information.
+ *
+ * @package com.tecnick.tcpdf
+ * @abstract Class for generating QR-code array for TCPDF.
+ * @author Nicola Asuni
+ * @copyright 2010 Nicola Asuni - Tecnick.com S.r.l (www.tecnick.com) Via Della Pace, 11 - 09044 - Quartucciu (CA) - ITALY - www.tecnick.com - info@tecnick.com
+ * @link http://www.tcpdf.org
+ * @license http://www.gnu.org/copyleft/lesser.html LGPL
+ * @version 1.0.002
+ */
+
+// definitions
+if (!defined('QRCODEDEFS')) {
+
+	/**
+	 * Indicate that definitions for this class are set
+	 */
+	define('QRCODEDEFS', true);
+
+	// -----------------------------------------------------
+
+	// Encoding modes (characters which can be encoded in QRcode)
+
+	/**
+	 * Encoding mode
+	 */
+	define('QR_MODE_NL', -1);
+
+	/**
+	 * Encoding mode numeric (0-9). 3 characters are encoded to 10bit length. In theory, 7089 characters or less can be stored in a QRcode.
+	 */
+	define('QR_MODE_NM', 0);
+
+	/**
+	 * Encoding mode alphanumeric (0-9A-Z $%*+-./:) 45characters. 2 characters are encoded to 11bit length. In theory, 4296 characters or less can be stored in a QRcode.
+	 */
+	define('QR_MODE_AN', 1);
+
+	/**
+	 * Encoding mode 8bit byte data. In theory, 2953 characters or less can be stored in a QRcode.
+	 */
+	define('QR_MODE_8B', 2);
+
+	/**
+	 * Encoding mode KANJI. A KANJI character (multibyte character) is encoded to 13bit length. In theory, 1817 characters or less can be stored in a QRcode.
+	 */
+	define('QR_MODE_KJ', 3);
+
+	/**
+	 * Encoding mode STRUCTURED (currently unsupported)
+	 */
+	define('QR_MODE_ST', 4);
+
+	// -----------------------------------------------------
+
+	// Levels of error correction.
+	// QRcode has a function of an error correcting for miss reading that white is black.
+	// Error correcting is defined in 4 level as below.
+
+	/**
+	 * Error correction level L : About 7% or less errors can be corrected.
+	 */
+	define('QR_ECLEVEL_L', 0);
+
+	/**
+	 * Error correction level M : About 15% or less errors can be corrected.
+	 */
+	define('QR_ECLEVEL_M', 1);
+
+	/**
+	 * Error correction level Q : About 25% or less errors can be corrected.
+	 */
+	define('QR_ECLEVEL_Q', 2);
+
+	/**
+	 * Error correction level H : About 30% or less errors can be corrected.
+	 */
+	define('QR_ECLEVEL_H', 3);
+
+	// -----------------------------------------------------
+
+	// Version. Size of QRcode is defined as version.
+	// Version is from 1 to 40.
+	// Version 1 is 21*21 matrix. And 4 modules increases whenever 1 version increases.
+	// So version 40 is 177*177 matrix.
+
+	/**
+	 * Maximum QR Code version.
+	 */
+	define('QRSPEC_VERSION_MAX', 40);
+
+	/**
+	 * Maximum matrix size for maximum version (version 40 is 177*177 matrix).
+	 */
+    define('QRSPEC_WIDTH_MAX', 177);
+
+	// -----------------------------------------------------
+
+	/**
+	 * Matrix index to get width from $capacity array.
+	 */
+    define('QRCAP_WIDTH',    0);
+
+    /**
+	 * Matrix index to get number of words from $capacity array.
+	 */
+    define('QRCAP_WORDS',    1);
+
+    /**
+	 * Matrix index to get remainder from $capacity array.
+	 */
+    define('QRCAP_REMINDER', 2);
+
+    /**
+	 * Matrix index to get error correction level from $capacity array.
+	 */
+    define('QRCAP_EC',       3);
+
+	// -----------------------------------------------------
+
+	// Structure (currently usupported)
+
+	/**
+	 * Number of header bits for structured mode
+	 */
+    define('STRUCTURE_HEADER_BITS',  20);
+
+    /**
+	 * Max number of symbols for structured mode
+	 */
+    define('MAX_STRUCTURED_SYMBOLS', 16);
+
+	// -----------------------------------------------------
+
+    // Masks
+
+    /**
+	 * Down point base value for case 1 mask pattern (concatenation of same color in a line or a column)
+	 */
+    define('N1',  3);
+
+    /**
+	 * Down point base value for case 2 mask pattern (module block of same color)
+	 */
+	define('N2',  3);
+
+    /**
+	 * Down point base value for case 3 mask pattern (1:1:3:1:1(dark:bright:dark:bright:dark)pattern in a line or a column)
+	 */
+	define('N3', 40);
+
+    /**
+	 * Down point base value for case 4 mask pattern (ration of dark modules in whole)
+	 */
+	define('N4', 10);
+
+	// -----------------------------------------------------
+
+	// Optimization settings
+
+	/**
+	 * if true, estimates best mask (spec. default, but extremally slow; set to false to significant performance boost but (propably) worst quality code
+	 */
+	define('QR_FIND_BEST_MASK', true);
+
+	/**
+	 * if false, checks all masks available, otherwise value tells count of masks need to be checked, mask id are got randomly
+	 */
+	define('QR_FIND_FROM_RANDOM', 2);
+
+	/**
+	 * when QR_FIND_BEST_MASK === false
+	 */
+	define('QR_DEFAULT_MASK', 2);
+
+	// -----------------------------------------------------
+
+} // end of definitions
+
+// #*#*#*#*#*#*#*#*#*#*#*#*#*#*#*#*#*#*#*#*#*#*#*#*#*#*#*#*#
+
+if (!class_exists('QRcode', false)) {
+
+	// for compaibility with PHP4
+	if (!function_exists('str_split')) {
+    	/**
+    	 * Convert a string to an array (needed for PHP4 compatibility)
+    	 * @param string $string The input string.
+    	 * @param int $split_length Maximum length of the chunk.
+    	 * @return  If the optional split_length  parameter is specified, the returned array will be broken down into chunks with each being split_length  in length, otherwise each chunk will be one character in length. FALSE is returned if split_length is less than 1. If the split_length length exceeds the length of string , the entire string is returned as the first (and only) array element.
+    	 */
+		function str_split($string, $split_length=1) {
+			if ((strlen($string) > $split_length) OR (!$split_length)) {
+				do {
+					$c = strlen($string);
+					$parts[] = substr($string, 0, $split_length);
+					$string = substr($string, $split_length);
+				} while ($string !== false);
+			} else {
+				$parts = array($string);
+			}
+			return $parts;
+		}
+	}
+
+	// #####################################################
+
+	/**
+	 * Class to create QR-code arrays for TCPDF class.
+	 * QR Code symbol is a 2D barcode that can be scanned by handy terminals such as a mobile phone with CCD.
+	 * The capacity of QR Code is up to 7000 digits or 4000 characters, and has high robustness.
+	 * This class supports QR Code model 2, described in JIS (Japanese Industrial Standards) X0510:2004 or ISO/IEC 18004.
+	 * Currently the following features are not supported: ECI and FNC1 mode, Micro QR Code, QR Code model 1, Structured mode.
+	 *
+	 * This class is derived from "PHP QR Code encoder" by Dominik Dzienia (http://phpqrcode.sourceforge.net/) based on "libqrencode C library 3.1.1." by Kentaro Fukuchi (http://megaui.net/fukuchi/works/qrencode/index.en.html), contains Reed-Solomon code written by Phil Karn, KA9Q. QR Code is registered trademark of DENSO WAVE INCORPORATED (http://www.denso-wave.com/qrcode/index-e.html).
+	 * Please read comments on this class source file for full copyright and license information.
+	 *
+	 * @name QRcode
+	 * @package com.tecnick.tcpdf
+	 * @abstract Class for generating QR-code array for TCPDF.
+	 * @author Nicola Asuni
+	 * @copyright 2010 Nicola Asuni - Tecnick.com S.r.l (www.tecnick.com) Via Della Pace, 11 - 09044 - Quartucciu (CA) - ITALY - www.tecnick.com - info@tecnick.com
+	 * @link http://www.tcpdf.org
+	 * @license http://www.gnu.org/copyleft/lesser.html LGPL
+	 * @version 1.0.002
+	 */
+	class QRcode {
+
+		/**
+		 * @var barcode array to be returned which is readable by TCPDF
+		 * @access protected
+		 */
+		protected $barcode_array = array();
+
+		/**
+		 * @var QR code version. Size of QRcode is defined as version. Version is from 1 to 40. Version 1 is 21*21 matrix. And 4 modules increases whenever 1 version increases. So version 40 is 177*177 matrix.
+		 * @access protected
+		 */
+		protected $version = 0;
+
+		/**
+		 * @var Levels of error correction. See definitions for possible values.
+		 * @access protected
+		 */
+		protected $level = QR_ECLEVEL_L;
+
+		/**
+		 * @var Encoding mode
+		 * @access protected
+		 */
+		protected $hint = QR_MODE_8B;
+
+		/**
+		 * @var if true the input string will be converted to uppercase
+		 * @access protected
+		 */
+		protected $casesensitive = true;
+
+		/**
+		 * @var structured QR code (not supported yet)
+		 * @access protected
+		 */
+		protected $structured = 0;
+
+		/**
+		 * @var mask data
+		 * @access protected
+		 */
+		protected $data;
+
+		// FrameFiller
+
+		/**
+		 * @var width
+		 * @access protected
+		 */
+		protected $width;
+
+		/**
+		 * @var frame
+		 * @access protected
+		 */
+		protected $frame;
+
+		/**
+		 * @var X position of bit
+		 * @access protected
+		 */
+		protected $x;
+
+		/**
+		 * @var Y position of bit
+		 * @access protected
+		 */
+		protected $y;
+
+		/**
+		 * @var direction
+		 * @access protected
+		 */
+		protected $dir;
+
+		/**
+		 * @var single bit
+		 * @access protected
+		 */
+		protected $bit;
+
+		// ---- QRrawcode ----
+
+		/**
+		 * @var data code
+		 * @access protected
+		 */
+		protected $datacode = array();
+
+		/**
+		 * @var error correction code
+		 * @access protected
+		 */
+		protected $ecccode = array();
+
+		/**
+		 * @var blocks
+		 * @access protected
+		 */
+		protected $blocks;
+
+		/**
+		 * @var Reed-Solomon blocks
+		 * @access protected
+		 */
+		protected $rsblocks = array(); //of RSblock
+
+		/**
+		 * @var counter
+		 * @access protected
+		 */
+		protected $count;
+
+		/**
+		 * @var data length
+		 * @access protected
+		 */
+		protected $dataLength;
+
+		/**
+		 * @var error correction length
+		 * @access protected
+		 */
+		protected $eccLength;
+
+		/**
+		 * @var b1
+		 * @access protected
+		 */
+		protected $b1;
+
+		// ---- QRmask ----
+
+		/**
+		 * @var run length
+		 * @access protected
+		 */
+		protected $runLength = array();
+
+		// ---- QRsplit ----
+
+		/**
+		 * @var input data string
+		 * @access protected
+		 */
+		protected $dataStr = '';
+
+		/**
+		 * @var input items
+		 * @access protected
+		 */
+		protected $items;
+
+		// Reed-Solomon items
+
+		/**
+		 * @var Reed-Solomon items
+		 * @access protected
+		 */
+		protected $rsitems = array();
+
+		/**
+		 * @var array of frames
+		 * @access protected
+		 */
+		protected $frames = array();
+
+		/**
+		 * @var alphabet-numeric convesion table
+		 * @access protected
+		 */
+		protected $anTable = array(
+			-1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, //
+			-1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, //
+			36, -1, -1, -1, 37, 38, -1, -1, -1, -1, 39, 40, -1, 41, 42, 43, //
+			 0,  1,  2,  3,  4,  5,  6,  7,  8,  9, 44, -1, -1, -1, -1, -1, //
+			-1, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, //
+			25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, -1, -1, -1, -1, -1, //
+			-1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, //
+			-1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1  //
+			);
+
+		/**
+		 * @var array Table of the capacity of symbols
+		 * See Table 1 (pp.13) and Table 12-16 (pp.30-36), JIS X0510:2004.
+		 * @access protected
+		 */
+		protected $capacity = array(
+			array(  0,    0, 0, array(   0,    0,    0,    0)), //
+			array( 21,   26, 0, array(   7,   10,   13,   17)), //  1
+			array( 25,   44, 7, array(  10,   16,   22,   28)), //
+			array( 29,   70, 7, array(  15,   26,   36,   44)), //
+			array( 33,  100, 7, array(  20,   36,   52,   64)), //
+			array( 37,  134, 7, array(  26,   48,   72,   88)), //  5
+			array( 41,  172, 7, array(  36,   64,   96,  112)), //
+			array( 45,  196, 0, array(  40,   72,  108,  130)), //
+			array( 49,  242, 0, array(  48,   88,  132,  156)), //
+			array( 53,  292, 0, array(  60,  110,  160,  192)), //
+			array( 57,  346, 0, array(  72,  130,  192,  224)), // 10
+			array( 61,  404, 0, array(  80,  150,  224,  264)), //
+			array( 65,  466, 0, array(  96,  176,  260,  308)), //
+			array( 69,  532, 0, array( 104,  198,  288,  352)), //
+			array( 73,  581, 3, array( 120,  216,  320,  384)), //
+			array( 77,  655, 3, array( 132,  240,  360,  432)), // 15
+			array( 81,  733, 3, array( 144,  280,  408,  480)), //
+			array( 85,  815, 3, array( 168,  308,  448,  532)), //
+			array( 89,  901, 3, array( 180,  338,  504,  588)), //
+			array( 93,  991, 3, array( 196,  364,  546,  650)), //
+			array( 97, 1085, 3, array( 224,  416,  600,  700)), // 20
+			array(101, 1156, 4, array( 224,  442,  644,  750)), //
+			array(105, 1258, 4, array( 252,  476,  690,  816)), //
+			array(109, 1364, 4, array( 270,  504,  750,  900)), //
+			array(113, 1474, 4, array( 300,  560,  810,  960)), //
+			array(117, 1588, 4, array( 312,  588,  870, 1050)), // 25
+			array(121, 1706, 4, array( 336,  644,  952, 1110)), //
+			array(125, 1828, 4, array( 360,  700, 1020, 1200)), //
+			array(129, 1921, 3, array( 390,  728, 1050, 1260)), //
+			array(133, 2051, 3, array( 420,  784, 1140, 1350)), //
+			array(137, 2185, 3, array( 450,  812, 1200, 1440)), // 30
+			array(141, 2323, 3, array( 480,  868, 1290, 1530)), //
+			array(145, 2465, 3, array( 510,  924, 1350, 1620)), //
+			array(149, 2611, 3, array( 540,  980, 1440, 1710)), //
+			array(153, 2761, 3, array( 570, 1036, 1530, 1800)), //
+			array(157, 2876, 0, array( 570, 1064, 1590, 1890)), // 35
+			array(161, 3034, 0, array( 600, 1120, 1680, 1980)), //
+			array(165, 3196, 0, array( 630, 1204, 1770, 2100)), //
+			array(169, 3362, 0, array( 660, 1260, 1860, 2220)), //
+			array(173, 3532, 0, array( 720, 1316, 1950, 2310)), //
+			array(177, 3706, 0, array( 750, 1372, 2040, 2430))  // 40
+		);
+
+		/**
+		 * @var array Length indicator
+		 * @access protected
+		 */
+		protected $lengthTableBits = array(
+			array(10, 12, 14),
+			array( 9, 11, 13),
+			array( 8, 16, 16),
+			array( 8, 10, 12)
+		);
+
+		/**
+		 * @var array Table of the error correction code (Reed-Solomon block)
+		 * See Table 12-16 (pp.30-36), JIS X0510:2004.
+		 * @access protected
+		 */
+		protected $eccTable = array(
+			array(array( 0,  0), array( 0,  0), array( 0,  0), array( 0,  0)), //
+			array(array( 1,  0), array( 1,  0), array( 1,  0), array( 1,  0)), //  1
+			array(array( 1,  0), array( 1,  0), array( 1,  0), array( 1,  0)), //
+			array(array( 1,  0), array( 1,  0), array( 2,  0), array( 2,  0)), //
+			array(array( 1,  0), array( 2,  0), array( 2,  0), array( 4,  0)), //
+			array(array( 1,  0), array( 2,  0), array( 2,  2), array( 2,  2)), //  5
+			array(array( 2,  0), array( 4,  0), array( 4,  0), array( 4,  0)), //
+			array(array( 2,  0), array( 4,  0), array( 2,  4), array( 4,  1)), //
+			array(array( 2,  0), array( 2,  2), array( 4,  2), array( 4,  2)), //
+			array(array( 2,  0), array( 3,  2), array( 4,  4), array( 4,  4)), //
+			array(array( 2,  2), array( 4,  1), array( 6,  2), array( 6,  2)), // 10
+			array(array( 4,  0), array( 1,  4), array( 4,  4), array( 3,  8)), //
+			array(array( 2,  2), array( 6,  2), array( 4,  6), array( 7,  4)), //
+			array(array( 4,  0), array( 8,  1), array( 8,  4), array(12,  4)), //
+			array(array( 3,  1), array( 4,  5), array(11,  5), array(11,  5)), //
+			array(array( 5,  1), array( 5,  5), array( 5,  7), array(11,  7)), // 15
+			array(array( 5,  1), array( 7,  3), array(15,  2), array( 3, 13)), //
+			array(array( 1,  5), array(10,  1), array( 1, 15), array( 2, 17)), //
+			array(array( 5,  1), array( 9,  4), array(17,  1), array( 2, 19)), //
+			array(array( 3,  4), array( 3, 11), array(17,  4), array( 9, 16)), //
+			array(array( 3,  5), array( 3, 13), array(15,  5), array(15, 10)), // 20
+			array(array( 4,  4), array(17,  0), array(17,  6), array(19,  6)), //
+			array(array( 2,  7), array(17,  0), array( 7, 16), array(34,  0)), //
+			array(array( 4,  5), array( 4, 14), array(11, 14), array(16, 14)), //
+			array(array( 6,  4), array( 6, 14), array(11, 16), array(30,  2)), //
+			array(array( 8,  4), array( 8, 13), array( 7, 22), array(22, 13)), // 25
+			array(array(10,  2), array(19,  4), array(28,  6), array(33,  4)), //
+			array(array( 8,  4), array(22,  3), array( 8, 26), array(12, 28)), //
+			array(array( 3, 10), array( 3, 23), array( 4, 31), array(11, 31)), //
+			array(array( 7,  7), array(21,  7), array( 1, 37), array(19, 26)), //
+			array(array( 5, 10), array(19, 10), array(15, 25), array(23, 25)), // 30
+			array(array(13,  3), array( 2, 29), array(42,  1), array(23, 28)), //
+			array(array(17,  0), array(10, 23), array(10, 35), array(19, 35)), //
+			array(array(17,  1), array(14, 21), array(29, 19), array(11, 46)), //
+			array(array(13,  6), array(14, 23), array(44,  7), array(59,  1)), //
+			array(array(12,  7), array(12, 26), array(39, 14), array(22, 41)), // 35
+			array(array( 6, 14), array( 6, 34), array(46, 10), array( 2, 64)), //
+			array(array(17,  4), array(29, 14), array(49, 10), array(24, 46)), //
+			array(array( 4, 18), array(13, 32), array(48, 14), array(42, 32)), //
+			array(array(20,  4), array(40,  7), array(43, 22), array(10, 67)), //
+			array(array(19,  6), array(18, 31), array(34, 34), array(20, 61))  // 40
+		);
+
+		/**
+		 * @var array Positions of alignment patterns.
+		 * This array includes only the second and the third position of the alignment patterns. Rest of them can be calculated from the distance between them.
+		 * See Table 1 in Appendix E (pp.71) of JIS X0510:2004.
+		 * @access protected
+		 */
+		protected $alignmentPattern = array(
+			array( 0,  0),
+			array( 0,  0), array(18,  0), array(22,  0), array(26,  0), array(30,  0), //  1- 5
+			array(34,  0), array(22, 38), array(24, 42), array(26, 46), array(28, 50), //  6-10
+			array(30, 54), array(32, 58), array(34, 62), array(26, 46), array(26, 48), // 11-15
+			array(26, 50), array(30, 54), array(30, 56), array(30, 58), array(34, 62), // 16-20
+			array(28, 50), array(26, 50), array(30, 54), array(28, 54), array(32, 58), // 21-25
+			array(30, 58), array(34, 62), array(26, 50), array(30, 54), array(26, 52), // 26-30
+			array(30, 56), array(34, 60), array(30, 58), array(34, 62), array(30, 54), // 31-35
+			array(24, 50), array(28, 54), array(32, 58), array(26, 54), array(30, 58)  // 35-40
+		);
+
+		/**
+		 * @var array Version information pattern (BCH coded).
+		 * See Table 1 in Appendix D (pp.68) of JIS X0510:2004.
+		 * size: [QRSPEC_VERSION_MAX - 6]
+		 * @access protected
+		 */
+		protected $versionPattern = array(
+			0x07c94, 0x085bc, 0x09a99, 0x0a4d3, 0x0bbf6, 0x0c762, 0x0d847, 0x0e60d, //
+			0x0f928, 0x10b78, 0x1145d, 0x12a17, 0x13532, 0x149a6, 0x15683, 0x168c9, //
+			0x177ec, 0x18ec4, 0x191e1, 0x1afab, 0x1b08e, 0x1cc1a, 0x1d33f, 0x1ed75, //
+			0x1f250, 0x209d5, 0x216f0, 0x228ba, 0x2379f, 0x24b0b, 0x2542e, 0x26a64, //
+			0x27541, 0x28c69
+		);
+
+		/**
+		 * @var array Format information
+		 * @access protected
+		 */
+		protected $formatInfo = array(
+			array(0x77c4, 0x72f3, 0x7daa, 0x789d, 0x662f, 0x6318, 0x6c41, 0x6976), //
+			array(0x5412, 0x5125, 0x5e7c, 0x5b4b, 0x45f9, 0x40ce, 0x4f97, 0x4aa0), //
+			array(0x355f, 0x3068, 0x3f31, 0x3a06, 0x24b4, 0x2183, 0x2eda, 0x2bed), //
+			array(0x1689, 0x13be, 0x1ce7, 0x19d0, 0x0762, 0x0255, 0x0d0c, 0x083b)  //
+		);
+
+
+		// -------------------------------------------------
+		// -------------------------------------------------
+
+
+		/**
+		 * This is the class constructor.
+		 * Creates a QRcode object
+		 * @param string $code code to represent using QRcode
+		 * @param string $eclevel error level: <ul><li>L : About 7% or less errors can be corrected.</li><li>M : About 15% or less errors can be corrected.</li><li>Q : About 25% or less errors can be corrected.</li><li>H : About 30% or less errors can be corrected.</li></ul>
+		 * @access public
+		 * @since 1.0.000
+		 */
+		public function __construct($code, $eclevel = 'L') {
+			$barcode_array = array();
+			if ((is_null($code)) OR ($code == '\0') OR ($code == '')) {
+				return false;
+			}
+			// set error correction level
+			$this->level = array_search($eclevel, array('L', 'M', 'Q', 'H'));
+			if ($this->level === false) {
+				$this->level = QR_ECLEVEL_L;
+			}
+			if (($this->hint != QR_MODE_8B) AND ($this->hint != QR_MODE_KJ)) {
+				return false;
+			}
+			if (($this->version < 0) OR ($this->version > QRSPEC_VERSION_MAX)) {
+				return false;
+			}
+			$this->items = array();
+			$this->encodeString($code);
+			$qrTab = $this->binarize($this->data);
+			$size = count($qrTab);
+			$barcode_array['num_rows'] = $size;
+			$barcode_array['num_cols'] = $size;
+			$barcode_array['bcode'] = array();
+			foreach ($qrTab as $line) {
+				$arrAdd = array();
+				foreach (str_split($line) as $char) {
+					$arrAdd[] = ($char=='1')?1:0;
+				}
+				$barcode_array['bcode'][] = $arrAdd;
+			}
+			$this->barcode_array = $barcode_array;
+		}
+
+		/**
+		 * Returns a barcode array which is readable by TCPDF
+		 * @return array barcode array readable by TCPDF;
+		 * @access public
+		 */
+		public function getBarcodeArray() {
+			return $this->barcode_array;
+		}
+
+		/**
+		 * Convert the frame in binary form
+		 * @param array $frame array to binarize
+		 * @return array frame in binary form
+		 */
+		protected function binarize($frame) {
+			$len = count($frame);
+			// the frame is square (width = height)
+			foreach ($frame as &$frameLine) {
+				for ($i=0; $i<$len; $i++) {
+					$frameLine[$i] = (ord($frameLine[$i])&1)?'1':'0';
+				}
+			}
+			return $frame;
+		}
+
+		/**
+		 * Encode the input string to QR code
+		 * @param string $string input string to encode
+		 */
+		protected function encodeString($string) {
+			$this->dataStr = $string;
+			if (!$this->casesensitive) {
+				$this->toUpper();
+			}
+			$ret = $this->splitString();
+			if ($ret < 0) {
+				return NULL;
+			}
+			$this->encodeMask(-1);
+		}
+
+		/**
+		 * Encode mask
+		 * @param int $mask masking mode
+		 */
+		protected function encodeMask($mask) {
+			$spec = array(0, 0, 0, 0, 0);
+			$this->datacode = $this->getByteStream($this->items);
+			if (is_null($this->datacode)) {
+				return NULL;
+			}
+			$spec = $this->getEccSpec($this->version, $this->level, $spec);
+			$this->b1 = $this->rsBlockNum1($spec);
+			$this->dataLength = $this->rsDataLength($spec);
+			$this->eccLength = $this->rsEccLength($spec);
+			$this->ecccode = array_fill(0, $this->eccLength, 0);
+			$this->blocks = $this->rsBlockNum($spec);
+			$ret = $this->init($spec);
+			if ($ret < 0) {
+				return NULL;
+			}
+			$this->count = 0;
+			$this->width = $this->getWidth($this->version);
+			$this->frame = $this->newFrame($this->version);
+			$this->x = $this->width - 1;
+			$this->y = $this->width - 1;
+			$this->dir = -1;
+			$this->bit = -1;
+			// inteleaved data and ecc codes
+			for ($i=0; $i < ($this->dataLength + $this->eccLength); $i++) {
+				$code = $this->getCode();
+				$bit = 0x80;
+				for ($j=0; $j<8; $j++) {
+					$addr = $this->getNextPosition();
+					$this->setFrameAt($addr, 0x02 | (($bit & $code) != 0));
+					$bit = $bit >> 1;
+				}
+			}
+			// remainder bits
+			$j = $this->getRemainder($this->version);
+			for ($i=0; $i<$j; $i++) {
+				$addr = $this->getNextPosition();
+				$this->setFrameAt($addr, 0x02);
+			}
+			// masking
+			$this->runLength = array_fill(0, QRSPEC_WIDTH_MAX + 1, 0);
+			if ($mask < 0) {
+				if (QR_FIND_BEST_MASK) {
+					$masked = $this->mask($this->width, $this->frame, $this->level);
+				} else {
+					$masked = $this->makeMask($this->width, $this->frame, (intval(QR_DEFAULT_MASK) % 8), $this->level);
+				}
+			} else {
+				$masked = $this->makeMask($this->width, $this->frame, $mask, $this->level);
+			}
+			if ($masked == NULL) {
+				return NULL;
+			}
+			$this->data = $masked;
+		}
+
+		// - - - - - - - - - - - - - - - - - - - - - - - - -
+
+		// FrameFiller
+
+		/**
+		 * Set frame value at specified position
+		 * @param array $at x,y position
+		 * @param int $val value of the character to set
+		 */
+		protected function setFrameAt($at, $val) {
+			$this->frame[$at['y']][$at['x']] = chr($val);
+		}
+
+		/**
+		 * Get frame value at specified position
+		 * @param array $at x,y position
+		 * @return value at specified position
+		 */
+		protected function getFrameAt($at) {
+			return ord($this->frame[$at['y']][$at['x']]);
+		}
+
+		/**
+		 * Return the next frame position
+		 * @return array of x,y coordinates
+		 */
+		protected function getNextPosition() {
+			do {
+				if ($this->bit == -1) {
+					$this->bit = 0;
+					return array('x'=>$this->x, 'y'=>$this->y);
+				}
+				$x = $this->x;
+				$y = $this->y;
+				$w = $this->width;
+				if ($this->bit == 0) {
+					$x--;
+					$this->bit++;
+				} else {
+					$x++;
+					$y += $this->dir;
+					$this->bit--;
+				}
+				if ($this->dir < 0) {
+					if ($y < 0) {
+						$y = 0;
+						$x -= 2;
+						$this->dir = 1;
+						if ($x == 6) {
+							$x--;
+							$y = 9;
+						}
+					}
+				} else {
+					if ($y == $w) {
+						$y = $w - 1;
+						$x -= 2;
+						$this->dir = -1;
+						if ($x == 6) {
+							$x--;
+							$y -= 8;
+						}
+					}
+				}
+				if (($x < 0) OR ($y < 0)) {
+					return NULL;
+				}
+				$this->x = $x;
+				$this->y = $y;
+			} while(ord($this->frame[$y][$x]) & 0x80);
+			return array('x'=>$x, 'y'=>$y);
+		}
+
+		// - - - - - - - - - - - - - - - - - - - - - - - - -
+
+		// QRrawcode
+
+		/**
+		 * Initialize code.
+		 * @param array $spec array of ECC specification
+		 * @return 0 in case of success, -1 in case of error
+		 */
+		protected function init($spec) {
+			$dl = $this->rsDataCodes1($spec);
+			$el = $this->rsEccCodes1($spec);
+			$rs = $this->init_rs(8, 0x11d, 0, 1, $el, 255 - $dl - $el);
+			$blockNo = 0;
+			$dataPos = 0;
+			$eccPos = 0;
+			$endfor = $this->rsBlockNum1($spec);
+			for ($i=0; $i < $endfor; ++$i) {
+				$ecc = array_slice($this->ecccode, $eccPos);
+				$this->rsblocks[$blockNo] = array();
+				$this->rsblocks[$blockNo]['dataLength'] = $dl;
+				$this->rsblocks[$blockNo]['data'] = array_slice($this->datacode, $dataPos);
+				$this->rsblocks[$blockNo]['eccLength'] = $el;
+				$ecc = $this->encode_rs_char($rs, $this->rsblocks[$blockNo]['data'], $ecc);
+				$this->rsblocks[$blockNo]['ecc'] = $ecc;
+				$this->ecccode = array_merge(array_slice($this->ecccode,0, $eccPos), $ecc);
+				$dataPos += $dl;
+				$eccPos += $el;
+				$blockNo++;
+			}
+			if ($this->rsBlockNum2($spec) == 0) {
+				return 0;
+			}
+			$dl = $this->rsDataCodes2($spec);
+			$el = $this->rsEccCodes2($spec);
+			$rs = $this->init_rs(8, 0x11d, 0, 1, $el, 255 - $dl - $el);
+			if ($rs == NULL) {
+				return -1;
+			}
+			$endfor = $this->rsBlockNum2($spec);
+			for ($i=0; $i < $endfor; ++$i) {
+				$ecc = array_slice($this->ecccode, $eccPos);
+				$this->rsblocks[$blockNo] = array();
+				$this->rsblocks[$blockNo]['dataLength'] = $dl;
+				$this->rsblocks[$blockNo]['data'] = array_slice($this->datacode, $dataPos);
+				$this->rsblocks[$blockNo]['eccLength'] = $el;
+				$ecc = $this->encode_rs_char($rs, $this->rsblocks[$blockNo]['data'], $ecc);
+				$this->rsblocks[$blockNo]['ecc'] = $ecc;
+				$this->ecccode = array_merge(array_slice($this->ecccode, 0, $eccPos), $ecc);
+				$dataPos += $dl;
+				$eccPos += $el;
+				$blockNo++;
+			}
+			return 0;
+		}
+
+		/**
+		 * Return Reed-Solomon block code.
+		 * @return array rsblocks
+		 */
+		protected function getCode() {
+			if ($this->count < $this->dataLength) {
+				$row = $this->count % $this->blocks;
+				$col = $this->count / $this->blocks;
+				if ($col >= $this->rsblocks[0]['dataLength']) {
+					$row += $this->b1;
+				}
+				$ret = $this->rsblocks[$row]['data'][$col];
+			} elseif ($this->count < $this->dataLength + $this->eccLength) {
+				$row = ($this->count - $this->dataLength) % $this->blocks;
+				$col = ($this->count - $this->dataLength) / $this->blocks;
+				$ret = $this->rsblocks[$row]['ecc'][$col];
+			} else {
+				return 0;
+			}
+			$this->count++;
+			return $ret;
+		}
+
+		// - - - - - - - - - - - - - - - - - - - - - - - - -
+
+		// QRmask
+
+		/**
+		 * Write Format Information on frame and returns the number of black bits
+		 * @param int $width frame width
+		 * @param array $frame frame
+		 * @param array $mask masking mode
+		 * @param int $level error correction level
+		 * @return int blacks
+		 */
+		 protected function writeFormatInformation($width, &$frame, $mask, $level) {
+			$blacks = 0;
+			$format =  $this->getFormatInfo($mask, $level);
+			for ($i=0; $i<8; ++$i) {
+				if ($format & 1) {
+					$blacks += 2;
+					$v = 0x85;
+				} else {
+					$v = 0x84;
+				}
+				$frame[8][$width - 1 - $i] = chr($v);
+				if ($i < 6) {
+					$frame[$i][8] = chr($v);
+				} else {
+					$frame[$i + 1][8] = chr($v);
+				}
+				$format = $format >> 1;
+			}
+			for ($i=0; $i<7; ++$i) {
+			if ($format & 1) {
+				$blacks += 2;
+				$v = 0x85;
+			} else {
+				$v = 0x84;
+			}
+			$frame[$width - 7 + $i][8] = chr($v);
+			if ($i == 0) {
+				$frame[8][7] = chr($v);
+			} else {
+				$frame[8][6 - $i] = chr($v);
+			}
+			$format = $format >> 1;
+			}
+			return $blacks;
+		}
+
+		/**
+		 * mask0
+		 * @param int $x X position
+		 * @param int $y Y position
+		 * @return int mask
+		 */
+		 protected function mask0($x, $y) {
+			return ($x + $y) & 1;
+		}
+
+		/**
+		 * mask1
+		 * @param int $x X position
+		 * @param int $y Y position
+		 * @return int mask
+		 */
+		 protected function mask1($x, $y) {
+			return ($y & 1);
+		}
+
+		/**
+		 * mask2
+		 * @param int $x X position
+		 * @param int $y Y position
+		 * @return int mask
+		 */
+		 protected function mask2($x, $y) {
+			return ($x % 3);
+		}
+
+		/**
+		 * mask3
+		 * @param int $x X position
+		 * @param int $y Y position
+		 * @return int mask
+		 */
+		 protected function mask3($x, $y) {
+			return ($x + $y) % 3;
+		}
+
+		/**
+		 * mask4
+		 * @param int $x X position
+		 * @param int $y Y position
+		 * @return int mask
+		 */
+		 protected function mask4($x, $y) {
+			return (((int)($y / 2)) + ((int)($x / 3))) & 1;
+		}
+
+		/**
+		 * mask5
+		 * @param int $x X position
+		 * @param int $y Y position
+		 * @return int mask
+		 */
+		 protected function mask5($x, $y) {
+			return (($x * $y) & 1) + ($x * $y) % 3;
+		}
+
+		/**
+		 * mask6
+		 * @param int $x X position
+		 * @param int $y Y position
+		 * @return int mask
+		 */
+		 protected function mask6($x, $y) {
+			return ((($x * $y) & 1) + ($x * $y) % 3) & 1;
+		}
+
+		/**
+		 * mask7
+		 * @param int $x X position
+		 * @param int $y Y position
+		 * @return int mask
+		 */
+		 protected function mask7($x, $y) {
+			return ((($x * $y) % 3) + (($x + $y) & 1)) & 1;
+		}
+
+		/**
+		 * Return bitmask
+		 * @param int $maskNo mask number
+		 * @param int $width width
+		 * @param array $frame frame
+		 * @return array bitmask
+		 */
+		protected function generateMaskNo($maskNo, $width, $frame) {
+			$bitMask = array_fill(0, $width, array_fill(0, $width, 0));
+			for ($y=0; $y<$width; ++$y) {
+				for ($x=0; $x<$width; ++$x) {
+					if (ord($frame[$y][$x]) & 0x80) {
+						$bitMask[$y][$x] = 0;
+					} else {
+						$maskFunc = call_user_func(array($this, 'mask'.$maskNo), $x, $y);
+						$bitMask[$y][$x] = ($maskFunc == 0)?1:0;
+					}
+				}
+			}
+			return $bitMask;
+		}
+
+		/**
+		 * makeMaskNo
+		 * @param int $maskNo
+		 * @param int $width
+		 * @param int $s
+		 * @param int $d
+		 * @param boolean $maskGenOnly
+		 * @return int b
+		 */
+		 protected function makeMaskNo($maskNo, $width, $s, &$d, $maskGenOnly=false) {
+			$b = 0;
+			$bitMask = array();
+			$bitMask = $this->generateMaskNo($maskNo, $width, $s, $d);
+			if ($maskGenOnly) {
+				return;
+			}
+			$d = $s;
+			for ($y=0; $y<$width; ++$y) {
+				for ($x=0; $x<$width; ++$x) {
+					if ($bitMask[$y][$x] == 1) {
+						$d[$y][$x] = chr(ord($s[$y][$x]) ^ (int)$bitMask[$y][$x]);
+					}
+					$b += (int)(ord($d[$y][$x]) & 1);
+				}
+			}
+			return $b;
+		}
+
+		/**
+		 * makeMask
+		 * @param int $width
+		 * @param array $frame
+		 * @param int $maskNo
+		 * @param int $level
+		 * @return array mask
+		 */
+		 protected function makeMask($width, $frame, $maskNo, $level) {
+			$masked = array_fill(0, $width, str_repeat("\0", $width));
+			$this->makeMaskNo($maskNo, $width, $frame, $masked);
+			$this->writeFormatInformation($width, $masked, $maskNo, $level);
+			return $masked;
+		}
+
+		/**
+		 * calcN1N3
+		 * @param int $length
+		 * @return int demerit
+		 */
+		 protected function calcN1N3($length) {
+			$demerit = 0;
+			for ($i=0; $i<$length; ++$i) {
+				if ($this->runLength[$i] >= 5) {
+					$demerit += (N1 + ($this->runLength[$i] - 5));
+				}
+				if ($i & 1) {
+					if (($i >= 3) AND ($i < ($length-2)) AND ($this->runLength[$i] % 3 == 0)) {
+						$fact = (int)($this->runLength[$i] / 3);
+						if (($this->runLength[$i-2] == $fact)
+							AND ($this->runLength[$i-1] == $fact)
+							AND ($this->runLength[$i+1] == $fact)
+							AND ($this->runLength[$i+2] == $fact)) {
+							if (($this->runLength[$i-3] < 0) OR ($this->runLength[$i-3] >= (4 * $fact))) {
+								$demerit += N3;
+							} elseif ((($i+3) >= $length) OR ($this->runLength[$i+3] >= (4 * $fact))) {
+								$demerit += N3;
+							}
+						}
+					}
+				}
+			}
+			return $demerit;
+		}
+
+		/**
+		 * evaluateSymbol
+		 * @param int $width
+		 * @param array $frame
+		 * @return int demerit
+		 */
+		 protected function evaluateSymbol($width, $frame) {
+			$head = 0;
+			$demerit = 0;
+			for ($y=0; $y<$width; ++$y) {
+				$head = 0;
+				$this->runLength[0] = 1;
+				$frameY = $frame[$y];
+				if ($y > 0) {
+					$frameYM = $frame[$y-1];
+				}
+				for ($x=0; $x<$width; ++$x) {
+					if (($x > 0) AND ($y > 0)) {
+						$b22 = ord($frameY[$x]) & ord($frameY[$x-1]) & ord($frameYM[$x]) & ord($frameYM[$x-1]);
+						$w22 = ord($frameY[$x]) | ord($frameY[$x-1]) | ord($frameYM[$x]) | ord($frameYM[$x-1]);
+						if (($b22 | ($w22 ^ 1)) & 1) {
+							$demerit += N2;
+						}
+					}
+					if (($x == 0) AND (ord($frameY[$x]) & 1)) {
+						$this->runLength[0] = -1;
+						$head = 1;
+						$this->runLength[$head] = 1;
+					} elseif ($x > 0) {
+						if ((ord($frameY[$x]) ^ ord($frameY[$x-1])) & 1) {
+							$head++;
+							$this->runLength[$head] = 1;
+						} else {
+							$this->runLength[$head]++;
+						}
+					}
+				}
+				$demerit += $this->calcN1N3($head+1);
+			}
+			for ($x=0; $x<$width; ++$x) {
+				$head = 0;
+				$this->runLength[0] = 1;
+				for ($y=0; $y<$width; ++$y) {
+					if (($y == 0) AND (ord($frame[$y][$x]) & 1)) {
+						$this->runLength[0] = -1;
+						$head = 1;
+						$this->runLength[$head] = 1;
+					} elseif ($y > 0) {
+						if ((ord($frame[$y][$x]) ^ ord($frame[$y-1][$x])) & 1) {
+							$head++;
+							$this->runLength[$head] = 1;
+						} else {
+							$this->runLength[$head]++;
+						}
+					}
+				}
+				$demerit += $this->calcN1N3($head+1);
+			}
+			return $demerit;
+		}
+
+		/**
+		 * mask
+		 * @param int $width
+		 * @param array $frame
+		 * @param int $level
+		 * @return array best mask
+		 */
+		 protected function mask($width, $frame, $level) {
+			$minDemerit = PHP_INT_MAX;
+			$bestMaskNum = 0;
+			$bestMask = array();
+			$checked_masks = array(0, 1, 2, 3, 4, 5, 6, 7);
+			if (QR_FIND_FROM_RANDOM !== false) {
+				$howManuOut = 8 - (QR_FIND_FROM_RANDOM % 9);
+				for ($i = 0; $i <  $howManuOut; ++$i) {
+					$remPos = rand (0, count($checked_masks)-1);
+					unset($checked_masks[$remPos]);
+					$checked_masks = array_values($checked_masks);
+				}
+			}
+			$bestMask = $frame;
+			foreach ($checked_masks as $i) {
+				$mask = array_fill(0, $width, str_repeat("\0", $width));
+				$demerit = 0;
+				$blacks = 0;
+				$blacks  = $this->makeMaskNo($i, $width, $frame, $mask);
+				$blacks += $this->writeFormatInformation($width, $mask, $i, $level);
+				$blacks  = (int)(100 * $blacks / ($width * $width));
+				$demerit = (int)((int)(abs($blacks - 50) / 5) * N4);
+				$demerit += $this->evaluateSymbol($width, $mask);
+				if ($demerit < $minDemerit) {
+					$minDemerit = $demerit;
+					$bestMask = $mask;
+					$bestMaskNum = $i;
+				}
+			}
+			return $bestMask;
+		}
+
+		// - - - - - - - - - - - - - - - - - - - - - - - - -
+
+		// QRsplit
+
+		/**
+		 * Return true if the character at specified position is a number
+		 * @param string $str string
+		 * @param int $pos characted position
+		 * @return boolean true of false
+		 */
+		 protected function isdigitat($str, $pos) {
+			if ($pos >= strlen($str)) {
+				return false;
+			}
+			return ((ord($str[$pos]) >= ord('0'))&&(ord($str[$pos]) <= ord('9')));
+		}
+
+		/**
+		 * Return true if the character at specified position is an alphanumeric character
+		 * @param string $str string
+		 * @param int $pos characted position
+		 * @return boolean true of false
+		 */
+		 protected function isalnumat($str, $pos) {
+			if ($pos >= strlen($str)) {
+				return false;
+			}
+			return ($this->lookAnTable(ord($str[$pos])) >= 0);
+		}
+
+		/**
+		 * identifyMode
+		 * @param int $pos
+		 * @return int mode
+		 */
+		 protected function identifyMode($pos) {
+			if ($pos >= strlen($this->dataStr)) {
+				return QR_MODE_NL;
+			}
+			$c = $this->dataStr[$pos];
+			if ($this->isdigitat($this->dataStr, $pos)) {
+				return QR_MODE_NM;
+			} elseif ($this->isalnumat($this->dataStr, $pos)) {
+				return QR_MODE_AN;
+			} elseif ($this->hint == QR_MODE_KJ) {
+				if ($pos+1 < strlen($this->dataStr)) {
+					$d = $this->dataStr[$pos+1];
+					$word = (ord($c) << 8) | ord($d);
+					if (($word >= 0x8140 && $word <= 0x9ffc) OR ($word >= 0xe040 && $word <= 0xebbf)) {
+						return QR_MODE_KJ;
+					}
+				}
+			}
+			return QR_MODE_8B;
+		}
+
+		/**
+		 * eatNum
+		 * @return int run
+		 */
+		 protected function eatNum() {
+			$ln = $this->lengthIndicator(QR_MODE_NM, $this->version);
+			$p = 0;
+			while($this->isdigitat($this->dataStr, $p)) {
+				$p++;
+			}
+			$run = $p;
+			$mode = $this->identifyMode($p);
+			if ($mode == QR_MODE_8B) {
+				$dif = $this->estimateBitsModeNum($run) + 4 + $ln
+				+ $this->estimateBitsMode8(1)         // + 4 + l8
+				- $this->estimateBitsMode8($run + 1); // - 4 - l8
+				if ($dif > 0) {
+					return $this->eat8();
+				}
+			}
+			if ($mode == QR_MODE_AN) {
+				$dif = $this->estimateBitsModeNum($run) + 4 + $ln
+				+ $this->estimateBitsModeAn(1)        // + 4 + la
+				- $this->estimateBitsModeAn($run + 1);// - 4 - la
+				if ($dif > 0) {
+					return $this->eatAn();
+				}
+			}
+			$this->items = $this->appendNewInputItem($this->items, QR_MODE_NM, $run, str_split($this->dataStr));
+			return $run;
+		}
+
+		/**
+		 * eatAn
+		 * @return int run
+		 */
+		 protected function eatAn() {
+			$la = $this->lengthIndicator(QR_MODE_AN,  $this->version);
+			$ln = $this->lengthIndicator(QR_MODE_NM, $this->version);
+			$p = 0;
+			while($this->isalnumat($this->dataStr, $p)) {
+				if ($this->isdigitat($this->dataStr, $p)) {
+					$q = $p;
+					while($this->isdigitat($this->dataStr, $q)) {
+						$q++;
+					}
+					$dif = $this->estimateBitsModeAn($p) // + 4 + la
+					+ $this->estimateBitsModeNum($q - $p) + 4 + $ln
+					- $this->estimateBitsModeAn($q); // - 4 - la
+					if ($dif < 0) {
+						break;
+					} else {
+						$p = $q;
+					}
+				} else {
+					$p++;
+				}
+			}
+			$run = $p;
+			if (!$this->isalnumat($this->dataStr, $p)) {
+				$dif = $this->estimateBitsModeAn($run) + 4 + $la
+				+ $this->estimateBitsMode8(1) // + 4 + l8
+				- $this->estimateBitsMode8($run + 1); // - 4 - l8
+				if ($dif > 0) {
+					return $this->eat8();
+				}
+			}
+			$this->items = $this->appendNewInputItem($this->items, QR_MODE_AN, $run, str_split($this->dataStr));
+			return $run;
+		}
+
+		/**
+		 * eatKanji
+		 * @return int run
+		 */
+		 protected function eatKanji() {
+			$p = 0;
+			while($this->identifyMode($p) == QR_MODE_KJ) {
+				$p += 2;
+			}
+			$this->items = $this->appendNewInputItem($this->items, QR_MODE_KJ, $p, str_split($this->dataStr));
+			return $run;
+		}
+
+		/**
+		 * eat8
+		 * @return int run
+		 */
+		 protected function eat8() {
+			$la = $this->lengthIndicator(QR_MODE_AN, $this->version);
+			$ln = $this->lengthIndicator(QR_MODE_NM, $this->version);
+			$p = 1;
+			$dataStrLen = strlen($this->dataStr);
+			while($p < $dataStrLen) {
+				$mode = $this->identifyMode($p);
+				if ($mode == QR_MODE_KJ) {
+					break;
+				}
+				if ($mode == QR_MODE_NM) {
+					$q = $p;
+					while($this->isdigitat($this->dataStr, $q)) {
+						$q++;
+					}
+					$dif = $this->estimateBitsMode8($p) // + 4 + l8
+					+ $this->estimateBitsModeNum($q - $p) + 4 + $ln
+					- $this->estimateBitsMode8($q); // - 4 - l8
+					if ($dif < 0) {
+						break;
+					} else {
+						$p = $q;
+					}
+				} elseif ($mode == QR_MODE_AN) {
+					$q = $p;
+					while($this->isalnumat($this->dataStr, $q)) {
+						$q++;
+					}
+					$dif = $this->estimateBitsMode8($p)  // + 4 + l8
+					+ $this->estimateBitsModeAn($q - $p) + 4 + $la
+					- $this->estimateBitsMode8($q); // - 4 - l8
+					if ($dif < 0) {
+						break;
+					} else {
+						$p = $q;
+					}
+				} else {
+					$p++;
+				}
+			}
+			$run = $p;
+			$this->items = $this->appendNewInputItem($this->items, QR_MODE_8B, $run, str_split($this->dataStr));
+			return $run;
+		}
+
+		/**
+		 * splitString
+		 */
+		 protected function splitString() {
+			while (strlen($this->dataStr) > 0) {
+				if ($this->dataStr == '') {
+					return 0;
+				}
+				$mode = $this->identifyMode(0);
+				switch ($mode) {
+					case QR_MODE_NM: {
+						$length = $this->eatNum();
+						break;
+					}
+					case QR_MODE_AN: {
+						$length = $this->eatAn();
+						break;
+					}
+					case QR_MODE_KJ: {
+						if ($hint == QR_MODE_KJ) {
+							$length = $this->eatKanji();
+						} else {
+							$length = $this->eat8();
+						}
+						break;
+					}
+					default: {
+						$length = $this->eat8();
+						break;
+					}
+				}
+				if ($length == 0) {
+					return 0;
+				}
+				if ($length < 0) {
+					return -1;
+				}
+				$this->dataStr = substr($this->dataStr, $length);
+			}
+		}
+
+		/**
+		 * toUpper
+		 */
+		 protected function toUpper() {
+			$stringLen = strlen($this->dataStr);
+			$p = 0;
+			while ($p < $stringLen) {
+				$mode = $this->identifyMode(substr($this->dataStr, $p), $this->hint);
+				if ($mode == QR_MODE_KJ) {
+					$p += 2;
+				} else {
+					if ((ord($this->dataStr[$p]) >= ord('a')) AND (ord($this->dataStr[$p]) <= ord('z'))) {
+						$this->dataStr[$p] = chr(ord($this->dataStr[$p]) - 32);
+					}
+					$p++;
+				}
+			}
+			return $this->dataStr;
+		}
+
+		// - - - - - - - - - - - - - - - - - - - - - - - - -
+
+		// QRinputItem
+
+		/**
+		 * newInputItem
+		 * @param int $mode
+		 * @param int $size
+		 * @param array $data
+		 * @param array $bstream
+		 * @return array input item
+		 */
+		 protected function newInputItem($mode, $size, $data, $bstream=null) {
+			$setData = array_slice($data, 0, $size);
+			if (count($setData) < $size) {
+				$setData = array_merge($setData, array_fill(0, ($size - count($setData)), 0));
+			}
+			if (!$this->check($mode, $size, $setData)) {
+				return NULL;
+			}
+			$inputitem = array();
+			$inputitem['mode'] = $mode;
+			$inputitem['size'] = $size;
+			$inputitem['data'] = $setData;
+			$inputitem['bstream'] = $bstream;
+			return $inputitem;
+		}
+
+		/**
+		 * encodeModeNum
+		 * @param array $inputitem
+		 * @param int $version
+		 * @return array input item
+		 */
+		 protected function encodeModeNum($inputitem, $version) {
+			$words = (int)($inputitem['size'] / 3);
+			$inputitem['bstream'] = array();
+			$val = 0x1;
+			$inputitem['bstream'] = $this->appendNum($inputitem['bstream'], 4, $val);
+			$inputitem['bstream'] = $this->appendNum($inputitem['bstream'], $this->lengthIndicator(QR_MODE_NM, $version), $inputitem['size']);
+			for ($i=0; $i < $words; ++$i) {
+				$val  = (ord($inputitem['data'][$i*3  ]) - ord('0')) * 100;
+				$val += (ord($inputitem['data'][$i*3+1]) - ord('0')) * 10;
+				$val += (ord($inputitem['data'][$i*3+2]) - ord('0'));
+				$inputitem['bstream'] = $this->appendNum($inputitem['bstream'], 10, $val);
+			}
+			if ($inputitem['size'] - $words * 3 == 1) {
+				$val = ord($inputitem['data'][$words*3]) - ord('0');
+				$inputitem['bstream'] = $this->appendNum($inputitem['bstream'], 4, $val);
+			} elseif (($inputitem['size'] - ($words * 3)) == 2) {
+				$val  = (ord($inputitem['data'][$words*3  ]) - ord('0')) * 10;
+				$val += (ord($inputitem['data'][$words*3+1]) - ord('0'));
+				$inputitem['bstream'] = $this->appendNum($inputitem['bstream'], 7, $val);
+			}
+			return $inputitem;
+		}
+
+		/**
+		 * encodeModeAn
+		 * @param array $inputitem
+		 * @param int $version
+		 * @return array input item
+		 */
+		 protected function encodeModeAn($inputitem, $version) {
+			$words = (int)($inputitem['size'] / 2);
+			$inputitem['bstream'] = array();
+			$inputitem['bstream'] = $this->appendNum($inputitem['bstream'], 4, 0x02);
+			$inputitem['bstream'] = $this->appendNum(v, $this->lengthIndicator(QR_MODE_AN, $version), $inputitem['size']);
+			for ($i=0; $i < $words; ++$i) {
+				$val  = (int)$this->lookAnTable(ord($inputitem['data'][$i*2  ])) * 45;
+				$val += (int)$this->lookAnTable(ord($inputitem['data'][$i*2+1]));
+				$inputitem['bstream'] = $this->appendNum($inputitem['bstream'], 11, $val);
+			}
+			if ($inputitem['size'] & 1) {
+				$val = $this->lookAnTable(ord($inputitem['data'][($words * 2)]));
+				$inputitem['bstream'] = $this->appendNum($inputitem['bstream'], 6, $val);
+			}
+			return $inputitem;
+		}
+
+		/**
+		 * encodeMode8
+		 * @param array $inputitem
+		 * @param int $version
+		 * @return array input item
+		 */
+		 protected function encodeMode8($inputitem, $version) {
+			$inputitem['bstream'] = array();
+			$inputitem['bstream'] = $this->appendNum($inputitem['bstream'], 4, 0x4);
+			$inputitem['bstream'] = $this->appendNum($inputitem['bstream'], $this->lengthIndicator(QR_MODE_8B, $version), $inputitem['size']);
+			for ($i=0; $i < $inputitem['size']; ++$i) {
+				$inputitem['bstream'] = $this->appendNum($inputitem['bstream'], 8, ord($inputitem['data'][$i]));
+			}
+			return $inputitem;
+		}
+
+		/**
+		 * encodeModeKanji
+		 * @param array $inputitem
+		 * @param int $version
+		 * @return array input item
+		 */
+		 protected function encodeModeKanji($inputitem, $version) {
+			$inputitem['bstream'] = array();
+			$inputitem['bstream'] = $this->appendNum($inputitem['bstream'], 4, 0x8);
+			$inputitem['bstream'] = $this->appendNum($inputitem['bstream'], $this->lengthIndicator(QR_MODE_KJ, $version), (int)($inputitem['size'] / 2));
+			for ($i=0; $i<$inputitem['size']; $i+=2) {
+				$val = (ord($inputitem['data'][$i]) << 8) | ord($inputitem['data'][$i+1]);
+				if ($val <= 0x9ffc) {
+					$val -= 0x8140;
+				} else {
+					$val -= 0xc140;
+				}
+				$h = ($val >> 8) * 0xc0;
+				$val = ($val & 0xff) + $h;
+				$inputitem['bstream'] = $this->appendNum($inputitem['bstream'], 13, $val);
+			}
+			return $inputitem;
+		}
+
+		/**
+		 * encodeModeStructure
+		 * @param array $inputitem
+		 * @return array input item
+		 */
+		 protected function encodeModeStructure($inputitem) {
+			$inputitem['bstream'] = array();
+			$inputitem['bstream'] = $this->appendNum($inputitem['bstream'], 4, 0x03);
+			$inputitem['bstream'] = $this->appendNum($inputitem['bstream'], 4, ord($inputitem['data'][1]) - 1);
+			$inputitem['bstream'] = $this->appendNum($inputitem['bstream'], 4, ord($inputitem['data'][0]) - 1);
+			$inputitem['bstream'] = $this->appendNum($inputitem['bstream'], 8, ord($inputitem['data'][2]));
+			return $inputitem;
+		}
+
+		/**
+		 * encodeBitStream
+		 * @param array $inputitem
+		 * @param int $version
+		 * @return array input item
+		 */
+		 protected function encodeBitStream($inputitem, $version) {
+			$inputitem['bstream'] = array();
+			$words = $this->maximumWords($inputitem['mode'], $version);
+			if ($inputitem['size'] > $words) {
+				$st1 = $this->newInputItem($inputitem['mode'], $words, $inputitem['data']);
+				$st2 = $this->newInputItem($inputitem['mode'], $inputitem['size'] - $words, array_slice($inputitem['data'], $words));
+				$st1 = $this->encodeBitStream($st1, $version);
+				$st2 = $this->encodeBitStream($st2, $version);
+				$inputitem['bstream'] = array();
+				$inputitem['bstream'] = $this->appendBitstream($inputitem['bstream'], $st1['bstream']);
+				$inputitem['bstream'] = $this->appendBitstream($inputitem['bstream'], $st2['bstream']);
+			} else {
+				switch($inputitem['mode']) {
+					case QR_MODE_NM: {
+						$inputitem = $this->encodeModeNum($inputitem, $version);
+						break;
+					}
+					case QR_MODE_AN: {
+						$inputitem = $this->encodeModeAn($inputitem, $version);
+						break;
+					}
+					case QR_MODE_8B: {
+						$inputitem = $this->encodeMode8($inputitem, $version);
+						break;
+					}
+					case QR_MODE_KJ: {
+						$inputitem = $this->encodeModeKanji($inputitem, $version);
+						break;
+					}
+					case QR_MODE_ST: {
+						$inputitem = $this->encodeModeStructure($inputitem);
+						break;
+					}
+					default: {
+						break;
+					}
+				}
+			}
+			return $inputitem;
+		}
+
+		// - - - - - - - - - - - - - - - - - - - - - - - - -
+
+		// QRinput
+
+		/**
+		 * Append data to an input object.
+		 * The data is copied and appended to the input object.
+		 * @param array items input items
+		 * @param int $mode encoding mode.
+		 * @param int $size size of data (byte).
+		 * @param array $data array of input data.
+		 * @return items
+		 *
+		 */
+		protected function appendNewInputItem($items, $mode, $size, $data) {
+			$items[] = $this->newInputItem($mode, $size, $data);
+			return $items;
+		}
+
+		/**
+		 * insertStructuredAppendHeader
+		 * @param array $items
+		 * @param int $size
+		 * @param int $index
+		 * @param int $parity
+		 * @return array items
+		 */
+		 protected function insertStructuredAppendHeader($items, $size, $index, $parity) {
+			if ($size > MAX_STRUCTURED_SYMBOLS) {
+				return -1;
+			}
+			if (($index <= 0) OR ($index > MAX_STRUCTURED_SYMBOLS)) {
+				return -1;
+			}
+			$buf = array($size, $index, $parity);
+			$entry = $this->newInputItem(QR_MODE_ST, 3, buf);
+			array_unshift($items, $entry);
+			return $items;
+		}
+
+		/**
+		 * calcParity
+		 * @param array $items
+		 * @return int parity
+		 */
+		 protected function calcParity($items) {
+			$parity = 0;
+			foreach ($items as $item) {
+				if ($item['mode'] != QR_MODE_ST) {
+					for ($i=$item['size']-1; $i>=0; --$i) {
+						$parity ^= $item['data'][$i];
+					}
+				}
+			}
+			return $parity;
+		}
+
+		/**
+		 * checkModeNum
+		 * @param int $size
+		 * @param array $data
+		 * @return boolean true or false
+		 */
+		 protected function checkModeNum($size, $data) {
+			for ($i=0; $i<$size; ++$i) {
+				if ((ord($data[$i]) < ord('0')) OR (ord($data[$i]) > ord('9'))){
+					return false;
+				}
+			}
+			return true;
+		}
+
+		/**
+		 * estimateBitsModeNum
+		 * @param int $size
+		 * @return int number of bits
+		 */
+		 protected function estimateBitsModeNum($size) {
+			$w = (int)$size / 3;
+			$bits = $w * 10;
+			switch($size - $w * 3) {
+				case 1: {
+					$bits += 4;
+					break;
+				}
+				case 2: {
+					$bits += 7;
+					break;
+				}
+				default: {
+					break;
+				}
+			}
+			return $bits;
+		}
+
+		/**
+		 * Look up the alphabet-numeric convesion table (see JIS X0510:2004, pp.19).
+		 * @param int $c character value
+		 * @return value
+		 */
+		protected function lookAnTable($c) {
+			return (($c > 127)?-1:$this->anTable[$c]);
+		}
+
+		/**
+		 * checkModeAn
+		 * @param int $size
+		 * @param array $data
+		 * @return boolean true or false
+		 */
+		 protected function checkModeAn($size, $data) {
+			for ($i=0; $i<$size; ++$i) {
+				if ($this->lookAnTable(ord($data[$i])) == -1) {
+					return false;
+				}
+			}
+			return true;
+		}
+
+		/**
+		 * estimateBitsModeAn
+		 * @param int $size
+		 * @return int number of bits
+		 */
+		 protected function estimateBitsModeAn($size) {
+			$w = (int)($size / 2);
+			$bits = $w * 11;
+			if ($size & 1) {
+				$bits += 6;
+			}
+			return $bits;
+		}
+
+		/**
+		 * estimateBitsMode8
+		 * @param int $size
+		 * @return int number of bits
+		 */
+		 protected function estimateBitsMode8($size) {
+			return $size * 8;
+		}
+
+		/**
+		 * estimateBitsModeKanji
+		 * @param int $size
+		 * @return int number of bits
+		 */
+		 protected function estimateBitsModeKanji($size) {
+			return (int)(($size / 2) * 13);
+		}
+
+		/**
+		 * checkModeKanji
+		 * @param int $size
+		 * @param array $data
+		 * @return boolean true or false
+		 */
+		 protected function checkModeKanji($size, $data) {
+			if ($size & 1) {
+				return false;
+			}
+			for ($i=0; $i<$size; $i+=2) {
+				$val = (ord($data[$i]) << 8) | ord($data[$i+1]);
+				if (($val < 0x8140) OR (($val > 0x9ffc) AND ($val < 0xe040)) OR ($val > 0xebbf)) {
+					return false;
+				}
+			}
+			return true;
+		}
+
+		/**
+		 * Validate the input data.
+		 * @param int $mode encoding mode.
+		 * @param int $size size of data (byte).
+		 * @param array data data to validate
+		 * @return boolean true in case of valid data, false otherwise
+		 */
+		protected function check($mode, $size, $data) {
+			if ($size <= 0) {
+				return false;
+			}
+			switch($mode) {
+				case QR_MODE_NM: {
+					return $this->checkModeNum($size, $data);
+				}
+				case QR_MODE_AN: {
+					return $this->checkModeAn($size, $data);
+				}
+				case QR_MODE_KJ: {
+					return $this->checkModeKanji($size, $data);
+				}
+				case QR_MODE_8B: {
+					return true;
+				}
+				case QR_MODE_ST: {
+					return true;
+				}
+				default: {
+					break;
+				}
+			}
+			return false;
+		}
+
+		/**
+		 * estimateBitStreamSize
+		 * @param array $items
+		 * @param int $version
+		 * @return int bits
+		 */
+		 protected function estimateBitStreamSize($items, $version) {
+			$bits = 0;
+			if ($version == 0) {
+				$version = 1;
+			}
+			foreach ($items as $item) {
+				switch($item['mode']) {
+					case QR_MODE_NM: {
+						$bits = $this->estimateBitsModeNum($item['size']);
+						break;
+					}
+					case QR_MODE_AN: {
+						$bits = $this->estimateBitsModeAn($item['size']);
+						break;
+					}
+					case QR_MODE_8B: {
+						$bits = $this->estimateBitsMode8($item['size']);
+						break;
+					}
+					case QR_MODE_KJ: {
+						$bits = $this->estimateBitsModeKanji($item['size']);
+						break;
+					}
+					case QR_MODE_ST: {
+						return STRUCTURE_HEADER_BITS;
+					}
+					default: {
+						return 0;
+					}
+				}
+				$l = $this->lengthIndicator($item['mode'], $version);
+				$m = 1 << $l;
+				$num = (int)(($item['size'] + $m - 1) / $m);
+				$bits += $num * (4 + $l);
+			}
+			return $bits;
+		}
+
+		/**
+		 * estimateVersion
+		 * @param array $items
+		 * @return int version
+		 */
+		 protected function estimateVersion($items) {
+			$version = 0;
+			$prev = 0;
+			do {
+				$prev = $version;
+				$bits = $this->estimateBitStreamSize($items, $prev);
+				$version = $this->getMinimumVersion((int)(($bits + 7) / 8), $this->level);
+				if ($version < 0) {
+					return -1;
+				}
+			} while ($version > $prev);
+			return $version;
+		}
+
+		/**
+		 * lengthOfCode
+		 * @param int $mode
+		 * @param int $version
+		 * @param int $bits
+		 * @return int size
+		 */
+		 protected function lengthOfCode($mode, $version, $bits) {
+			$payload = $bits - 4 - $this->lengthIndicator($mode, $version);
+			switch($mode) {
+				case QR_MODE_NM: {
+					$chunks = (int)($payload / 10);
+					$remain = $payload - $chunks * 10;
+					$size = $chunks * 3;
+					if ($remain >= 7) {
+						$size += 2;
+					} elseif ($remain >= 4) {
+						$size += 1;
+					}
+					break;
+				}
+				case QR_MODE_AN: {
+					$chunks = (int)($payload / 11);
+					$remain = $payload - $chunks * 11;
+					$size = $chunks * 2;
+					if ($remain >= 6) {
+						++$size;
+					}
+					break;
+				}
+				case QR_MODE_8B: {
+					$size = (int)($payload / 8);
+					break;
+				}
+				case QR_MODE_KJ: {
+					$size = (int)(($payload / 13) * 2);
+					break;
+				}
+				case QR_MODE_ST: {
+					$size = (int)($payload / 8);
+					break;
+				}
+				default: {
+					$size = 0;
+					break;
+				}
+			}
+			$maxsize = $this->maximumWords($mode, $version);
+			if ($size < 0) {
+				$size = 0;
+			}
+			if ($size > $maxsize) {
+				$size = $maxsize;
+			}
+			return $size;
+		}
+
+		/**
+		 * createBitStream
+		 * @param array $items
+		 * @return array of items and total bits
+		 */
+		 protected function createBitStream($items) {
+			$total = 0;
+			foreach ($items as $key => $item) {
+				$items[$key] = $this->encodeBitStream($item, $this->version);
+				$bits = count($items[$key]['bstream']);
+				$total += $bits;
+			}
+			return array($items, $total);
+		}
+
+		/**
+		 * convertData
+		 * @param array $items
+		 * @return array items
+		 */
+		 protected function convertData($items) {
+			$ver = $this->estimateVersion($items);
+			if ($ver > $this->version) {
+				$this->version = $ver;
+			}
+			for (;;) {
+				$cbs = $this->createBitStream($items);
+				$items = $cbs[0];
+				$bits = $cbs[1];
+				if ($bits < 0) {
+					return -1;
+				}
+				$ver = $this->getMinimumVersion((int)(($bits + 7) / 8), $this->level);
+				if ($ver < 0) {
+					return -1;
+				} elseif ($ver > $this->version) {
+					$this->version = $ver;
+				} else {
+					break;
+				}
+			}
+			return $items;
+		}
+
+		/**
+		 * Append Padding Bit to bitstream
+		 * @param array $bstream
+		 * @return array bitstream
+		 */
+		 protected function appendPaddingBit($bstream) {
+			$bits = count($bstream);
+			$maxwords = $this->getDataLength($this->version, $this->level);
+			$maxbits = $maxwords * 8;
+			if ($maxbits == $bits) {
+				return 0;
+			}
+			if ($maxbits - $bits < 5) {
+				return $this->appendNum($bstream, $maxbits - $bits, 0);
+			}
+			$bits += 4;
+			$words = (int)(($bits + 7) / 8);
+			$padding = array();
+			$padding = $this->appendNum($padding, $words * 8 - $bits + 4, 0);
+			$padlen = $maxwords - $words;
+			if ($padlen > 0) {
+				$padbuf = array();
+				for ($i=0; $i<$padlen; ++$i) {
+					$padbuf[$i] = ($i&1)?0x11:0xec;
+				}
+				$padding = $this->appendBytes($padding, $padlen, $padbuf);
+			}
+			return $this->appendBitstream($bstream, $padding);
+		}
+
+		/**
+		 * mergeBitStream
+		 * @param array $bstream
+		 * @return array bitstream
+		 */
+		 protected function mergeBitStream($items) {
+			$items = $this->convertData($items);
+			$bstream = array();
+			foreach ($items as $item) {
+				$bstream = $this->appendBitstream($bstream, $item['bstream']);
+			}
+			return $bstream;
+		}
+
+		/**
+		 * Returns a stream of bits.
+		 * @param int $items
+		 * @return array padded merged byte stream
+		 */
+		protected function getBitStream($items) {
+			$bstream = $this->mergeBitStream($items);
+			return $this->appendPaddingBit($bstream);
+		}
+
+		/**
+		 * Pack all bit streams padding bits into a byte array.
+		 * @param int $items
+		 * @return array padded merged byte stream
+		 */
+		protected function getByteStream($items) {
+			$bstream = $this->getBitStream($items);
+			return $this->bitstreamToByte($bstream);
+		}
+
+		// - - - - - - - - - - - - - - - - - - - - - - - - -
+
+		// QRbitstream
+
+		/**
+		 * Return an array with zeros
+		 * @param int $setLength array size
+		 * @return array
+		 */
+		 protected function allocate($setLength) {
+			return array_fill(0, $setLength, 0);
+		}
+
+		/**
+		 * Return new bitstream from number
+		 * @param int $bits number of bits
+		 * @param int $num number
+		 * @return array bitstream
+		 */
+		 protected function newFromNum($bits, $num) {
+			$bstream = $this->allocate($bits);
+			$mask = 1 << ($bits - 1);
+			for ($i=0; $i<$bits; ++$i) {
+				if ($num & $mask) {
+					$bstream[$i] = 1;
+				} else {
+					$bstream[$i] = 0;
+				}
+				$mask = $mask >> 1;
+			}
+			return $bstream;
+		}
+
+		/**
+		 * Return new bitstream from bytes
+		 * @param int $size size
+		 * @param array $data bytes
+		 * @return array bitstream
+		 */
+		 protected function newFromBytes($size, $data) {
+			$bstream = $this->allocate($size * 8);
+			$p=0;
+			for ($i=0; $i<$size; ++$i) {
+				$mask = 0x80;
+				for ($j=0; $j<8; ++$j) {
+					if ($data[$i] & $mask) {
+						$bstream[$p] = 1;
+					} else {
+						$bstream[$p] = 0;
+					}
+					$p++;
+					$mask = $mask >> 1;
+				}
+			}
+			return $bstream;
+		}
+
+		/**
+		 * Append one bitstream to another
+		 * @param array $bitstream original bitstream
+		 * @param array $append bitstream to append
+		 * @return array bitstream
+		 */
+		 protected function appendBitstream($bitstream, $append) {
+			if ((!is_array($append)) OR (count($append) == 0)) {
+				return $bitstream;
+			}
+			if (count($bitstream) == 0) {
+				return $append;
+			}
+			return array_values(array_merge($bitstream, $append));
+		}
+
+		/**
+		 * Append one bitstream created from number to another
+		 * @param array $bitstream original bitstream
+		 * @param int $bits number of bits
+		 * @param int $num number
+		 * @return array bitstream
+		 */
+		 protected function appendNum($bitstream, $bits, $num) {
+			if ($bits == 0) {
+				return 0;
+			}
+			$b = $this->newFromNum($bits, $num);
+			return $this->appendBitstream($bitstream, $b);
+		}
+
+		/**
+		 * Append one bitstream created from bytes to another
+		 * @param array $bitstream original bitstream
+		 * @param int $size size
+		 * @param array $data bytes
+		 * @return array bitstream
+		 */
+		 protected function appendBytes($bitstream, $size, $data) {
+			if ($size == 0) {
+				return 0;
+			}
+			$b = $this->newFromBytes($size, $data);
+			return $this->appendBitstream($bitstream, $b);
+		}
+
+		/**
+		 * Convert bitstream to bytes
+		 * @param array $bitstream original bitstream
+		 * @return array of bytes
+		 */
+		 protected function bitstreamToByte($bstream) {
+			$size = count($bstream);
+			if ($size == 0) {
+				return array();
+			}
+			$data = array_fill(0, (int)(($size + 7) / 8), 0);
+			$bytes = (int)($size / 8);
+			$p = 0;
+			for ($i=0; $i<$bytes; $i++) {
+				$v = 0;
+				for ($j=0; $j<8; $j++) {
+					$v = $v << 1;
+					$v |= $bstream[$p];
+					$p++;
+				}
+				$data[$i] = $v;
+			}
+			if ($size & 7) {
+				$v = 0;
+				for ($j=0; $j<($size & 7); $j++) {
+					$v = $v << 1;
+					$v |= $bstream[$p];
+					$p++;
+				}
+				$data[$bytes] = $v;
+			}
+			return $data;
+		}
+
+		// - - - - - - - - - - - - - - - - - - - - - - - - -
+
+		// QRspec
+
+		/**
+		 * Replace a value on the array at the specified position
+		 * @param array $srctab
+		 * @param int $x X position
+		 * @param int $y Y position
+		 * @param string $repl value to replace
+		 * @param int $replLen length of the repl string
+		 * @return array srctab
+		 */
+		 protected function qrstrset($srctab, $x, $y, $repl, $replLen=false) {
+			$srctab[$y] = substr_replace($srctab[$y], ($replLen !== false)?substr($repl,0,$replLen):$repl, $x, ($replLen !== false)?$replLen:strlen($repl));
+			return $srctab;
+		}
+
+		/**
+		 * Return maximum data code length (bytes) for the version.
+		 * @param int $version version
+		 * @param int $level error correction level
+		 * @return int maximum size (bytes)
+		 */
+		protected function getDataLength($version, $level) {
+			return $this->capacity[$version][QRCAP_WORDS] - $this->capacity[$version][QRCAP_EC][$level];
+		}
+
+		/**
+		 * Return maximum error correction code length (bytes) for the version.
+		 * @param int $version version
+		 * @param int $level error correction level
+		 * @return int ECC size (bytes)
+		 */
+		protected function getECCLength($version, $level){
+			return $this->capacity[$version][QRCAP_EC][$level];
+		}
+
+		/**
+		 * Return the width of the symbol for the version.
+		 * @param int $version version
+		 * @return int width
+		 */
+		protected function getWidth($version) {
+			return $this->capacity[$version][QRCAP_WIDTH];
+		}
+
+		/**
+		 * Return the numer of remainder bits.
+		 * @param int $version version
+		 * @return int number of remainder bits
+		 */
+		protected function getRemainder($version) {
+			return $this->capacity[$version][QRCAP_REMINDER];
+		}
+
+		/**
+		 * Return a version number that satisfies the input code length.
+		 * @param int $size input code length (byte)
+		 * @param int $level error correction level
+		 * @return int version number
+		 */
+		protected function getMinimumVersion($size, $level) {
+			for ($i=1; $i <= QRSPEC_VERSION_MAX; ++$i) {
+				$words  = $this->capacity[$i][QRCAP_WORDS] - $this->capacity[$i][QRCAP_EC][$level];
+				if ($words >= $size) {
+					return $i;
+				}
+			}
+			return -1;
+		}
+
+		/**
+		 * Return the size of length indicator for the mode and version.
+		 * @param int $mode encoding mode
+		 * @param int $version version
+		 * @return int the size of the appropriate length indicator (bits).
+		 */
+		protected function lengthIndicator($mode, $version) {
+			if ($mode == QR_MODE_ST) {
+				return 0;
+			}
+			if ($version <= 9) {
+				$l = 0;
+			} elseif ($version <= 26) {
+				$l = 1;
+			} else {
+				$l = 2;
+			}
+			return $this->lengthTableBits[$mode][$l];
+		}
+
+		/**
+		 * Return the maximum length for the mode and version.
+		 * @param int $mode encoding mode
+		 * @param int $version version
+		 * @return int the maximum length (bytes)
+		 */
+		protected function maximumWords($mode, $version) {
+			if ($mode == QR_MODE_ST) {
+				return 3;
+			}
+			if ($version <= 9) {
+				$l = 0;
+			} else if ($version <= 26) {
+				$l = 1;
+			} else {
+				$l = 2;
+			}
+			$bits = $this->lengthTableBits[$mode][$l];
+			$words = (1 << $bits) - 1;
+			if ($mode == QR_MODE_KJ) {
+				$words *= 2; // the number of bytes is required
+			}
+			return $words;
+		}
+
+		/**
+		 * Return an array of ECC specification.
+		 * @param int $version version
+		 * @param int $level error correction level
+		 * @param array $spec an array of ECC specification contains as following: {# of type1 blocks, # of data code, # of ecc code, # of type2 blocks, # of data code}
+		 * @return array spec
+		 */
+		protected function getEccSpec($version, $level, $spec) {
+			if (count($spec) < 5) {
+				$spec = array(0, 0, 0, 0, 0);
+			}
+			$b1 = $this->eccTable[$version][$level][0];
+			$b2 = $this->eccTable[$version][$level][1];
+			$data = $this->getDataLength($version, $level);
+			$ecc = $this->getECCLength($version, $level);
+			if ($b2 == 0) {
+				$spec[0] = $b1;
+				$spec[1] = (int)($data / $b1);
+				$spec[2] = (int)($ecc / $b1);
+				$spec[3] = 0;
+				$spec[4] = 0;
+			} else {
+				$spec[0] = $b1;
+				$spec[1] = (int)($data / ($b1 + $b2));
+				$spec[2] = (int)($ecc  / ($b1 + $b2));
+				$spec[3] = $b2;
+				$spec[4] = $spec[1] + 1;
+			}
+			return $spec;
+		}
+
+		/**
+		 * Put an alignment marker.
+		 * @param array $frame frame
+		 * @param int $width width
+		 * @param int $ox X center coordinate of the pattern
+		 * @param int $oy Y center coordinate of the pattern
+		 * @return array frame
+		 */
+		protected function putAlignmentMarker($frame, $ox, $oy) {
+			$finder = array(
+				"\xa1\xa1\xa1\xa1\xa1",
+				"\xa1\xa0\xa0\xa0\xa1",
+				"\xa1\xa0\xa1\xa0\xa1",
+				"\xa1\xa0\xa0\xa0\xa1",
+				"\xa1\xa1\xa1\xa1\xa1"
+				);
+			$yStart = $oy - 2;
+			$xStart = $ox - 2;
+			for ($y=0; $y < 5; $y++) {
+				$frame = $this->qrstrset($frame, $xStart, $yStart+$y, $finder[$y]);
+			}
+			return $frame;
+		}
+
+		/**
+		 * Put an alignment pattern.
+		 * @param int $version version
+		 * @param array $fram frame
+		 * @param int $width width
+		 * @return array frame
+		 */
+		 protected function putAlignmentPattern($version, $frame, $width) {
+			if ($version < 2) {
+				return $frame;
+			}
+			$d = $this->alignmentPattern[$version][1] - $this->alignmentPattern[$version][0];
+			if ($d < 0) {
+				$w = 2;
+			} else {
+				$w = (int)(($width - $this->alignmentPattern[$version][0]) / $d + 2);
+			}
+			if ($w * $w - 3 == 1) {
+				$x = $this->alignmentPattern[$version][0];
+				$y = $this->alignmentPattern[$version][0];
+				$frame = $this->putAlignmentMarker($frame, $x, $y);
+				return $frame;
+			}
+			$cx = $this->alignmentPattern[$version][0];
+			$wo = $w - 1;
+			for ($x=1; $x < $wo; ++$x) {
+				$frame = $this->putAlignmentMarker($frame, 6, $cx);
+				$frame = $this->putAlignmentMarker($frame, $cx,  6);
+				$cx += $d;
+			}
+			$cy = $this->alignmentPattern[$version][0];
+			for ($y=0; $y < $wo; ++$y) {
+				$cx = $this->alignmentPattern[$version][0];
+				for ($x=0; $x < $wo; ++$x) {
+					$frame = $this->putAlignmentMarker($frame, $cx, $cy);
+					$cx += $d;
+				}
+				$cy += $d;
+			}
+			return $frame;
+		}
+
+		/**
+		 * Return BCH encoded version information pattern that is used for the symbol of version 7 or greater. Use lower 18 bits.
+		 * @param int $version version
+		 * @return BCH encoded version information pattern
+		 */
+		protected function getVersionPattern($version) {
+			if (($version < 7) OR ($version > QRSPEC_VERSION_MAX)) {
+				return 0;
+			}
+			return $this->versionPattern[($version - 7)];
+		}
+
+		/**
+		 * Return BCH encoded format information pattern.
+		 * @param array $mask
+		 * @param int $level error correction level
+		 * @return BCH encoded format information pattern
+		 */
+		protected function getFormatInfo($mask, $level) {
+			if (($mask < 0) OR ($mask > 7)) {
+				return 0;
+			}
+			if (($level < 0) OR ($level > 3)) {
+				return 0;
+			}
+			return $this->formatInfo[$level][$mask];
+		}
+
+		/**
+		 * Put a finder pattern.
+		 * @param array $frame frame
+		 * @param int $width width
+		 * @param int $ox X center coordinate of the pattern
+		 * @param int $oy Y center coordinate of the pattern
+		 * @return array frame
+		 */
+		protected function putFinderPattern($frame, $ox, $oy) {
+			$finder = array(
+			"\xc1\xc1\xc1\xc1\xc1\xc1\xc1",
+			"\xc1\xc0\xc0\xc0\xc0\xc0\xc1",
+			"\xc1\xc0\xc1\xc1\xc1\xc0\xc1",
+			"\xc1\xc0\xc1\xc1\xc1\xc0\xc1",
+			"\xc1\xc0\xc1\xc1\xc1\xc0\xc1",
+			"\xc1\xc0\xc0\xc0\xc0\xc0\xc1",
+			"\xc1\xc1\xc1\xc1\xc1\xc1\xc1"
+			);
+			for ($y=0; $y < 7; $y++) {
+				$frame = $this->qrstrset($frame, $ox, ($oy + $y), $finder[$y]);
+			}
+			return $frame;
+		}
+
+		/**
+		 * Return a copy of initialized frame.
+		 * @param int $version version
+		 * @return Array of unsigned char.
+		 */
+		protected function createFrame($version) {
+			$width = $this->capacity[$version][QRCAP_WIDTH];
+			$frameLine = str_repeat ("\0", $width);
+			$frame = array_fill(0, $width, $frameLine);
+			// Finder pattern
+			$frame = $this->putFinderPattern($frame, 0, 0);
+			$frame = $this->putFinderPattern($frame, $width - 7, 0);
+			$frame = $this->putFinderPattern($frame, 0, $width - 7);
+			// Separator
+			$yOffset = $width - 7;
+			for ($y=0; $y < 7; ++$y) {
+				$frame[$y][7] = "\xc0";
+				$frame[$y][$width - 8] = "\xc0";
+				$frame[$yOffset][7] = "\xc0";
+				++$yOffset;
+			}
+			$setPattern = str_repeat("\xc0", 8);
+			$frame = $this->qrstrset($frame, 0, 7, $setPattern);
+			$frame = $this->qrstrset($frame, $width-8, 7, $setPattern);
+			$frame = $this->qrstrset($frame, 0, $width - 8, $setPattern);
+			// Format info
+			$setPattern = str_repeat("\x84", 9);
+			$frame = $this->qrstrset($frame, 0, 8, $setPattern);
+			$frame = $this->qrstrset($frame, $width - 8, 8, $setPattern, 8);
+			$yOffset = $width - 8;
+			for ($y=0; $y < 8; ++$y,++$yOffset) {
+				$frame[$y][8] = "\x84";
+				$frame[$yOffset][8] = "\x84";
+			}
+			// Timing pattern
+			$wo = $width - 15;
+			for ($i=1; $i < $wo; ++$i) {
+				$frame[6][7+$i] = chr(0x90 | ($i & 1));
+				$frame[7+$i][6] = chr(0x90 | ($i & 1));
+			}
+			// Alignment pattern
+			$frame = $this->putAlignmentPattern($version, $frame, $width);
+			// Version information
+			if ($version >= 7) {
+				$vinf = $this->getVersionPattern($version);
+				$v = $vinf;
+				for ($x=0; $x<6; ++$x) {
+					for ($y=0; $y<3; ++$y) {
+						$frame[($width - 11)+$y][$x] = chr(0x88 | ($v & 1));
+						$v = $v >> 1;
+					}
+				}
+				$v = $vinf;
+				for ($y=0; $y<6; ++$y) {
+					for ($x=0; $x<3; ++$x) {
+						$frame[$y][$x+($width - 11)] = chr(0x88 | ($v & 1));
+						$v = $v >> 1;
+					}
+				}
+			}
+			// and a little bit...
+			$frame[$width - 8][8] = "\x81";
+			return $frame;
+		}
+
+		/**
+		 * Set new frame for the specified version.
+		 * @param int $version version
+		 * @return Array of unsigned char.
+		 */
+		protected function newFrame($version) {
+			if (($version < 1) OR ($version > QRSPEC_VERSION_MAX)) {
+				return NULL;
+			}
+			if (!isset($this->frames[$version])) {
+				$this->frames[$version] = $this->createFrame($version);
+			}
+			if (is_null($this->frames[$version])) {
+				return NULL;
+			}
+			return $this->frames[$version];
+		}
+
+		/**
+		 * Return block number 0
+		 * @param array $spec
+		 * @return int value
+		 */
+		 protected function rsBlockNum($spec) {
+			return ($spec[0] + $spec[3]);
+		}
+
+		/**
+		* Return block number 1
+		 * @param array $spec
+		 * @return int value
+		 */
+		 protected function rsBlockNum1($spec) {
+			return $spec[0];
+		}
+
+		/**
+		 * Return data codes 1
+		 * @param array $spec
+		 * @return int value
+		 */
+		 protected function rsDataCodes1($spec) {
+			return $spec[1];
+		}
+
+		/**
+		 * Return ecc codes 1
+		 * @param array $spec
+		 * @return int value
+		 */
+		 protected function rsEccCodes1($spec) {
+			return $spec[2];
+		}
+
+		/**
+		 * Return block number 2
+		 * @param array $spec
+		 * @return int value
+		 */
+		 protected function rsBlockNum2($spec) {
+			return $spec[3];
+		}
+
+		/**
+		 * Return data codes 2
+		 * @param array $spec
+		 * @return int value
+		 */
+		 protected function rsDataCodes2($spec) {
+			return $spec[4];
+		}
+
+		/**
+		 * Return ecc codes 2
+		 * @param array $spec
+		 * @return int value
+		 */
+		 protected function rsEccCodes2($spec) {
+			return $spec[2];
+		}
+
+		/**
+		 * Return data length
+		 * @param array $spec
+		 * @return int value
+		 */
+		 protected function rsDataLength($spec) {
+			return ($spec[0] * $spec[1]) + ($spec[3] * $spec[4]);
+		}
+
+		/**
+		 * Return ecc length
+		 * @param array $spec
+		 * @return int value
+		 */
+		 protected function rsEccLength($spec) {
+			return ($spec[0] + $spec[3]) * $spec[2];
+		}
+
+		// - - - - - - - - - - - - - - - - - - - - - - - - -
+
+		// QRrs
+
+		/**
+		 * Initialize a Reed-Solomon codec and add it to existing rsitems
+		 * @param int $symsize symbol size, bits
+		 * @param int $gfpoly  Field generator polynomial coefficients
+		 * @param int $fcr  first root of RS code generator polynomial, index form
+		 * @param int $prim  primitive element to generate polynomial roots
+		 * @param int $nroots RS code generator polynomial degree (number of roots)
+		 * @param int $pad  padding bytes at front of shortened block
+		 * @return array Array of RS values:<ul><li>mm = Bits per symbol;</li><li>nn = Symbols per block;</li><li>alpha_to = log lookup table array;</li><li>index_of = Antilog lookup table array;</li><li>genpoly = Generator polynomial array;</li><li>nroots = Number of generator;</li><li>roots = number of parity symbols;</li><li>fcr = First consecutive root, index form;</li><li>prim = Primitive element, index form;</li><li>iprim = prim-th root of 1, index form;</li><li>pad = Padding bytes in shortened block;</li><li>gfpoly</ul>.
+		 */
+		 protected function init_rs($symsize, $gfpoly, $fcr, $prim, $nroots, $pad) {
+			foreach ($this->rsitems as $rs) {
+				if (($rs['pad'] != $pad) OR ($rs['nroots'] != $nroots) OR ($rs['mm'] != $symsize)
+					OR ($rs['gfpoly'] != $gfpoly) OR ($rs['fcr'] != $fcr) OR ($rs['prim'] != $prim)) {
+					continue;
+				}
+				return $rs;
+			}
+			$rs = $this->init_rs_char($symsize, $gfpoly, $fcr, $prim, $nroots, $pad);
+			array_unshift($this->rsitems, $rs);
+			return $rs;
+		}
+
+		// - - - - - - - - - - - - - - - - - - - - - - - - -
+
+		// QRrsItem
+
+		/**
+		 * modnn
+		 * @param array RS values
+		 * @param int $x X position
+		 * @return int X osition
+		 */
+		 protected function modnn($rs, $x) {
+			while ($x >= $rs['nn']) {
+				$x -= $rs['nn'];
+				$x = ($x >> $rs['mm']) + ($x & $rs['nn']);
+			}
+			return $x;
+		}
+
+		/**
+		 * Initialize a Reed-Solomon codec and returns an array of values.
+		 * @param int $symsize symbol size, bits
+		 * @param int $gfpoly  Field generator polynomial coefficients
+		 * @param int $fcr  first root of RS code generator polynomial, index form
+		 * @param int $prim  primitive element to generate polynomial roots
+		 * @param int $nroots RS code generator polynomial degree (number of roots)
+		 * @param int $pad  padding bytes at front of shortened block
+		 * @return array Array of RS values:<ul><li>mm = Bits per symbol;</li><li>nn = Symbols per block;</li><li>alpha_to = log lookup table array;</li><li>index_of = Antilog lookup table array;</li><li>genpoly = Generator polynomial array;</li><li>nroots = Number of generator;</li><li>roots = number of parity symbols;</li><li>fcr = First consecutive root, index form;</li><li>prim = Primitive element, index form;</li><li>iprim = prim-th root of 1, index form;</li><li>pad = Padding bytes in shortened block;</li><li>gfpoly</ul>.
+		 */
+		protected function init_rs_char($symsize, $gfpoly, $fcr, $prim, $nroots, $pad) {
+			// Based on Reed solomon encoder by Phil Karn, KA9Q (GNU-LGPLv2)
+			$rs = null;
+			// Check parameter ranges
+			if (($symsize < 0) OR ($symsize > 8)) {
+				return $rs;
+			}
+			if (($fcr < 0) OR ($fcr >= (1<<$symsize))) {
+				return $rs;
+			}
+			if (($prim <= 0) OR ($prim >= (1<<$symsize))) {
+				return $rs;
+			}
+			if (($nroots < 0) OR ($nroots >= (1<<$symsize))) {
+				return $rs;
+			}
+			if (($pad < 0) OR ($pad >= ((1<<$symsize) -1 - $nroots))) {
+				return $rs;
+			}
+			$rs = array();
+			$rs['mm'] = $symsize;
+			$rs['nn'] = (1 << $symsize) - 1;
+			$rs['pad'] = $pad;
+			$rs['alpha_to'] = array_fill(0, ($rs['nn'] + 1), 0);
+			$rs['index_of'] = array_fill(0, ($rs['nn'] + 1), 0);
+			// PHP style macro replacement ;)
+			$NN =& $rs['nn'];
+			$A0 =& $NN;
+			// Generate Galois field lookup tables
+			$rs['index_of'][0] = $A0; // log(zero) = -inf
+			$rs['alpha_to'][$A0] = 0; // alpha**-inf = 0
+			$sr = 1;
+			for ($i=0; $i<$rs['nn']; ++$i) {
+				$rs['index_of'][$sr] = $i;
+				$rs['alpha_to'][$i] = $sr;
+				$sr <<= 1;
+				if ($sr & (1 << $symsize)) {
+					$sr ^= $gfpoly;
+				}
+				$sr &= $rs['nn'];
+			}
+			if ($sr != 1) {
+				// field generator polynomial is not primitive!
+				return NULL;
+			}
+			// Form RS code generator polynomial from its roots
+			$rs['genpoly'] = array_fill(0, ($nroots + 1), 0);
+			$rs['fcr'] = $fcr;
+			$rs['prim'] = $prim;
+			$rs['nroots'] = $nroots;
+			$rs['gfpoly'] = $gfpoly;
+			// Find prim-th root of 1, used in decoding
+			for ($iprim=1; ($iprim % $prim) != 0; $iprim += $rs['nn']) {
+				; // intentional empty-body loop!
+			}
+			$rs['iprim'] = (int)($iprim / $prim);
+			$rs['genpoly'][0] = 1;
+
+
+			for ($i = 0,$root=$fcr*$prim; $i < $nroots; $i++, $root += $prim) {
+				$rs['genpoly'][$i+1] = 1;
+				// Multiply rs->genpoly[] by  @**(root + x)
+				for ($j = $i; $j > 0; --$j) {
+					if ($rs['genpoly'][$j] != 0) {
+						$rs['genpoly'][$j] = $rs['genpoly'][$j-1] ^ $rs['alpha_to'][$this->modnn($rs, $rs['index_of'][$rs['genpoly'][$j]] + $root)];
+					} else {
+						$rs['genpoly'][$j] = $rs['genpoly'][$j-1];
+					}
+				}
+				// rs->genpoly[0] can never be zero
+				$rs['genpoly'][0] = $rs['alpha_to'][$this->modnn($rs, $rs['index_of'][$rs['genpoly'][0]] + $root)];
+			}
+			// convert rs->genpoly[] to index form for quicker encoding
+			for ($i = 0; $i <= $nroots; ++$i) {
+				$rs['genpoly'][$i] = $rs['index_of'][$rs['genpoly'][$i]];
+			}
+			return $rs;
+		}
+
+		/**
+		 * Encode a Reed-Solomon codec and returns the parity array
+		 * @param array $rs RS values
+		 * @param array $data data
+		 * @param array $parity parity
+		 * @return parity array
+		 */
+		 protected function encode_rs_char($rs, $data, $parity) {
+			$MM       =& $rs['mm']; // bits per symbol
+			$NN       =& $rs['nn']; // the total number of symbols in a RS block
+			$ALPHA_TO =& $rs['alpha_to']; // the address of an array of NN elements to convert Galois field elements in index (log) form to polynomial form
+			$INDEX_OF =& $rs['index_of']; // the address of an array of NN elements to convert Galois field elements in polynomial form to index (log) form
+			$GENPOLY  =& $rs['genpoly']; // an array of NROOTS+1 elements containing the generator polynomial in index form
+			$NROOTS   =& $rs['nroots']; // the number of roots in the RS code generator polynomial, which is the same as the number of parity symbols in a block
+			$FCR      =& $rs['fcr']; // first consecutive root, index form
+			$PRIM     =& $rs['prim']; // primitive element, index form
+			$IPRIM    =& $rs['iprim']; // prim-th root of 1, index form
+			$PAD      =& $rs['pad']; // the number of pad symbols in a block
+			$A0       =& $NN;
+			$parity = array_fill(0, $NROOTS, 0);
+			for ($i=0; $i < ($NN - $NROOTS - $PAD); $i++) {
+				$feedback = $INDEX_OF[$data[$i] ^ $parity[0]];
+				if ($feedback != $A0) {
+					// feedback term is non-zero
+					// This line is unnecessary when GENPOLY[NROOTS] is unity, as it must
+					// always be for the polynomials constructed by init_rs()
+					$feedback = $this->modnn($rs, $NN - $GENPOLY[$NROOTS] + $feedback);
+					for ($j=1; $j < $NROOTS; ++$j) {
+					$parity[$j] ^= $ALPHA_TO[$this->modnn($rs, $feedback + $GENPOLY[($NROOTS - $j)])];
+					}
+				}
+				// Shift
+				array_shift($parity);
+				if ($feedback != $A0) {
+					array_push($parity, $ALPHA_TO[$this->modnn($rs, $feedback + $GENPOLY[0])]);
+				} else {
+					array_push($parity, 0);
+				}
+			}
+			return $parity;
+		}
+
+	} // end QRcode class
+
+} // END OF "class_exists QRcode"
+?>
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new file mode 100644
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new file mode 100644
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new file mode 100644
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new file mode 100644
index 0000000..78e08df
--- /dev/null
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new file mode 100644
index 0000000..b277368
--- /dev/null
+++ b/src/includes/phpqrcode/cache/mask_7/mask_97_7.dat
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diff --git a/src/includes/phpqrcode/index.php b/src/includes/phpqrcode/index.php
new file mode 100644
index 0000000..9e14b7e
--- /dev/null
+++ b/src/includes/phpqrcode/index.php
@@ -0,0 +1,94 @@
+<?php    
+/*
+ * PHP QR Code encoder
+ *
+ * Exemplatory usage
+ *
+ * PHP QR Code is distributed under LGPL 3
+ * Copyright (C) 2010 Dominik Dzienia <deltalab at poczta dot fm>
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 3 of the License, or any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+    
+    echo "<h1>PHP QR Code</h1><hr/>";
+    
+    //set it to writable location, a place for temp generated PNG files
+    $PNG_TEMP_DIR = dirname(__FILE__).DIRECTORY_SEPARATOR.'temp'.DIRECTORY_SEPARATOR;
+    
+    //html PNG location prefix
+    $PNG_WEB_DIR = 'temp/';
+
+    include "qrlib.php";    
+    
+    //ofcourse we need rights to create temp dir
+    if (!file_exists($PNG_TEMP_DIR))
+        mkdir($PNG_TEMP_DIR);
+    
+    
+    $filename = $PNG_TEMP_DIR.'test.png';
+    
+    //processing form input
+    //remember to sanitize user input in real-life solution !!!
+    $errorCorrectionLevel = 'L';
+    if (isset($_REQUEST['level']) && in_array($_REQUEST['level'], array('L','M','Q','H')))
+        $errorCorrectionLevel = $_REQUEST['level'];    
+
+    $matrixPointSize = 4;
+    if (isset($_REQUEST['size']))
+        $matrixPointSize = min(max((int)$_REQUEST['size'], 1), 10);
+
+
+    if (isset($_REQUEST['data'])) { 
+    
+        //it's very important!
+        if (trim($_REQUEST['data']) == '')
+            die('data cannot be empty! <a href="?">back</a>');
+            
+        // user data
+        $filename = $PNG_TEMP_DIR.'test'.md5($_REQUEST['data'].'|'.$errorCorrectionLevel.'|'.$matrixPointSize).'.png';
+        QRcode::png($_REQUEST['data'], $filename, $errorCorrectionLevel, $matrixPointSize, 2);    
+        
+    } else {    
+    
+        //default data
+        echo 'You can provide data in GET parameter: <a href="?data=like_that">like that</a><hr/>';    
+        QRcode::png('PHP QR Code :)', $filename, $errorCorrectionLevel, $matrixPointSize, 2);    
+        
+    }    
+        
+    //display generated file
+    echo '<img src="'.$PNG_WEB_DIR.basename($filename).'" /><hr/>';  
+    
+    //config form
+    echo '<form action="index.php" method="post">
+        Data:&nbsp;<input name="data" value="'.(isset($_REQUEST['data'])?htmlspecialchars($_REQUEST['data']):'PHP QR Code :)').'" />&nbsp;
+        ECC:&nbsp;<select name="level">
+            <option value="L"'.(($errorCorrectionLevel=='L')?' selected':'').'>L - smallest</option>
+            <option value="M"'.(($errorCorrectionLevel=='M')?' selected':'').'>M</option>
+            <option value="Q"'.(($errorCorrectionLevel=='Q')?' selected':'').'>Q</option>
+            <option value="H"'.(($errorCorrectionLevel=='H')?' selected':'').'>H - best</option>
+        </select>&nbsp;
+        Size:&nbsp;<select name="size">';
+        
+    for($i=1;$i<=10;$i++)
+        echo '<option value="'.$i.'"'.(($matrixPointSize==$i)?' selected':'').'>'.$i.'</option>';
+        
+    echo '</select>&nbsp;
+        <input type="submit" value="GENERATE"></form><hr/>';
+        
+    // benchmark
+    QRtools::timeBenchmark();    
+
+    
\ No newline at end of file
diff --git a/src/includes/phpqrcode/phpqrcode.php b/src/includes/phpqrcode/phpqrcode.php
new file mode 100644
index 0000000..80adb9d
--- /dev/null
+++ b/src/includes/phpqrcode/phpqrcode.php
@@ -0,0 +1,3312 @@
+<?php
+
+/*
+ * PHP QR Code encoder
+ *
+ * This file contains MERGED version of PHP QR Code library.
+ * It was auto-generated from full version for your convenience.
+ *
+ * This merged version was configured to not requre any external files,
+ * with disabled cache, error loging and weker but faster mask matching.
+ * If you need tune it up please use non-merged version.
+ *
+ * For full version, documentation, examples of use please visit:
+ *
+ *    http://phpqrcode.sourceforge.net/
+ *    https://sourceforge.net/projects/phpqrcode/
+ *
+ * PHP QR Code is distributed under LGPL 3
+ * Copyright (C) 2010 Dominik Dzienia <deltalab at poczta dot fm>
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 3 of the License, or any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+ 
+ 
+
+/*
+ * Version: 1.1.4
+ * Build: 2010100721
+ */
+
+
+
+//---- qrconst.php -----------------------------
+
+
+
+
+
+/*
+ * PHP QR Code encoder
+ *
+ * Common constants
+ *
+ * Based on libqrencode C library distributed under LGPL 2.1
+ * Copyright (C) 2006, 2007, 2008, 2009 Kentaro Fukuchi <fukuchi@megaui.net>
+ *
+ * PHP QR Code is distributed under LGPL 3
+ * Copyright (C) 2010 Dominik Dzienia <deltalab at poczta dot fm>
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 3 of the License, or any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+ 
+	// Encoding modes
+	 
+	define('QR_MODE_NUL', -1);
+	define('QR_MODE_NUM', 0);
+	define('QR_MODE_AN', 1);
+	define('QR_MODE_8', 2);
+	define('QR_MODE_KANJI', 3);
+	define('QR_MODE_STRUCTURE', 4);
+
+	// Levels of error correction.
+
+	define('QR_ECLEVEL_L', 0);
+	define('QR_ECLEVEL_M', 1);
+	define('QR_ECLEVEL_Q', 2);
+	define('QR_ECLEVEL_H', 3);
+	
+	// Supported output formats
+	
+	define('QR_FORMAT_TEXT', 0);
+	define('QR_FORMAT_PNG',  1);
+	
+	class qrstr {
+		public static function set(&$srctab, $x, $y, $repl, $replLen = false) {
+			$srctab[$y] = substr_replace($srctab[$y], ($replLen !== false)?substr($repl,0,$replLen):$repl, $x, ($replLen !== false)?$replLen:strlen($repl));
+		}
+	}	
+
+
+
+//---- merged_config.php -----------------------------
+
+
+
+
+/*
+ * PHP QR Code encoder
+ *
+ * Config file, tuned-up for merged verion
+ */
+     
+    define('QR_CACHEABLE', false);       // use cache - more disk reads but less CPU power, masks and format templates are stored there
+    define('QR_CACHE_DIR', false);       // used when QR_CACHEABLE === true
+    define('QR_LOG_DIR', false);         // default error logs dir   
+    
+    define('QR_FIND_BEST_MASK', true);                                                          // if true, estimates best mask (spec. default, but extremally slow; set to false to significant performance boost but (propably) worst quality code
+    define('QR_FIND_FROM_RANDOM', 2);                                                       // if false, checks all masks available, otherwise value tells count of masks need to be checked, mask id are got randomly
+    define('QR_DEFAULT_MASK', 2);                                                               // when QR_FIND_BEST_MASK === false
+                                                  
+    define('QR_PNG_MAXIMUM_SIZE',  1024);                                                       // maximum allowed png image width (in pixels), tune to make sure GD and PHP can handle such big images
+                                                  
+
+
+
+//---- qrtools.php -----------------------------
+
+
+
+
+/*
+ * PHP QR Code encoder
+ *
+ * Toolset, handy and debug utilites.
+ *
+ * PHP QR Code is distributed under LGPL 3
+ * Copyright (C) 2010 Dominik Dzienia <deltalab at poczta dot fm>
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 3 of the License, or any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+    class QRtools {
+    
+        //----------------------------------------------------------------------
+        public static function binarize($frame)
+        {
+            $len = count($frame);
+            foreach ($frame as &$frameLine) {
+                
+                for($i=0; $i<$len; $i++) {
+                    $frameLine[$i] = (ord($frameLine[$i])&1)?'1':'0';
+                }
+            }
+            
+            return $frame;
+        }
+        
+        //----------------------------------------------------------------------
+        public static function tcpdfBarcodeArray($code, $mode = 'QR,L', $tcPdfVersion = '4.5.037')
+        {
+            $barcode_array = array();
+            
+            if (!is_array($mode))
+                $mode = explode(',', $mode);
+                
+            $eccLevel = 'L';
+                
+            if (count($mode) > 1) {
+                $eccLevel = $mode[1];
+            }
+                
+            $qrTab = QRcode::text($code, false, $eccLevel);
+            $size = count($qrTab);
+                
+            $barcode_array['num_rows'] = $size;
+            $barcode_array['num_cols'] = $size;
+            $barcode_array['bcode'] = array();
+                
+            foreach ($qrTab as $line) {
+                $arrAdd = array();
+                foreach(str_split($line) as $char)
+                    $arrAdd[] = ($char=='1')?1:0;
+                $barcode_array['bcode'][] = $arrAdd;
+            }
+                    
+            return $barcode_array;
+        }
+        
+        //----------------------------------------------------------------------
+        public static function clearCache()
+        {
+            self::$frames = array();
+        }
+        
+        //----------------------------------------------------------------------
+        public static function buildCache()
+        {
+			QRtools::markTime('before_build_cache');
+			
+			$mask = new QRmask();
+            for ($a=1; $a <= QRSPEC_VERSION_MAX; $a++) {
+                $frame = QRspec::newFrame($a);
+                if (QR_IMAGE) {
+                    $fileName = QR_CACHE_DIR.'frame_'.$a.'.png';
+                    QRimage::png(self::binarize($frame), $fileName, 1, 0);
+                }
+				
+				$width = count($frame);
+				$bitMask = array_fill(0, $width, array_fill(0, $width, 0));
+				for ($maskNo=0; $maskNo<8; $maskNo++)
+					$mask->makeMaskNo($maskNo, $width, $frame, $bitMask, true);
+            }
+			
+			QRtools::markTime('after_build_cache');
+        }
+
+        //----------------------------------------------------------------------
+        public static function log($outfile, $err)
+        {
+            if (QR_LOG_DIR !== false) {
+                if ($err != '') {
+                    if ($outfile !== false) {
+                        file_put_contents(QR_LOG_DIR.basename($outfile).'-errors.txt', date('Y-m-d H:i:s').': '.$err, FILE_APPEND);
+                    } else {
+                        file_put_contents(QR_LOG_DIR.'errors.txt', date('Y-m-d H:i:s').': '.$err, FILE_APPEND);
+                    }
+                }    
+            }
+        }
+        
+        //----------------------------------------------------------------------
+        public static function dumpMask($frame) 
+        {
+            $width = count($frame);
+            for($y=0;$y<$width;$y++) {
+                for($x=0;$x<$width;$x++) {
+                    echo ord($frame[$y][$x]).',';
+                }
+            }
+        }
+        
+        //----------------------------------------------------------------------
+        public static function markTime($markerId)
+        {
+            list($usec, $sec) = explode(" ", microtime());
+            $time = ((float)$usec + (float)$sec);
+            
+            if (!isset($GLOBALS['qr_time_bench']))
+                $GLOBALS['qr_time_bench'] = array();
+            
+            $GLOBALS['qr_time_bench'][$markerId] = $time;
+        }
+        
+        //----------------------------------------------------------------------
+        public static function timeBenchmark()
+        {
+            self::markTime('finish');
+        
+            $lastTime = 0;
+            $startTime = 0;
+            $p = 0;
+
+            echo '<table cellpadding="3" cellspacing="1">
+                    <thead><tr style="border-bottom:1px solid silver"><td colspan="2" style="text-align:center">BENCHMARK</td></tr></thead>
+                    <tbody>';
+
+            foreach($GLOBALS['qr_time_bench'] as $markerId=>$thisTime) {
+                if ($p > 0) {
+                    echo '<tr><th style="text-align:right">till '.$markerId.': </th><td>'.number_format($thisTime-$lastTime, 6).'s</td></tr>';
+                } else {
+                    $startTime = $thisTime;
+                }
+                
+                $p++;
+                $lastTime = $thisTime;
+            }
+            
+            echo '</tbody><tfoot>
+                <tr style="border-top:2px solid black"><th style="text-align:right">TOTAL: </th><td>'.number_format($lastTime-$startTime, 6).'s</td></tr>
+            </tfoot>
+            </table>';
+        }
+        
+    }
+    
+    //##########################################################################
+    
+    QRtools::markTime('start');
+    
+
+
+
+//---- qrspec.php -----------------------------
+
+
+
+
+/*
+ * PHP QR Code encoder
+ *
+ * QR Code specifications
+ *
+ * Based on libqrencode C library distributed under LGPL 2.1
+ * Copyright (C) 2006, 2007, 2008, 2009 Kentaro Fukuchi <fukuchi@megaui.net>
+ *
+ * PHP QR Code is distributed under LGPL 3
+ * Copyright (C) 2010 Dominik Dzienia <deltalab at poczta dot fm>
+ *
+ * The following data / specifications are taken from
+ * "Two dimensional symbol -- QR-code -- Basic Specification" (JIS X0510:2004)
+ *  or
+ * "Automatic identification and data capture techniques -- 
+ *  QR Code 2005 bar code symbology specification" (ISO/IEC 18004:2006)
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 3 of the License, or any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+ 
+    define('QRSPEC_VERSION_MAX', 40);
+    define('QRSPEC_WIDTH_MAX',   177);
+
+    define('QRCAP_WIDTH',        0);
+    define('QRCAP_WORDS',        1);
+    define('QRCAP_REMINDER',     2);
+    define('QRCAP_EC',           3);
+
+    class QRspec {
+    
+        public static $capacity = array(
+            array(  0,    0, 0, array(   0,    0,    0,    0)),
+            array( 21,   26, 0, array(   7,   10,   13,   17)), // 1
+            array( 25,   44, 7, array(  10,   16,   22,   28)),
+            array( 29,   70, 7, array(  15,   26,   36,   44)),
+            array( 33,  100, 7, array(  20,   36,   52,   64)),
+            array( 37,  134, 7, array(  26,   48,   72,   88)), // 5
+            array( 41,  172, 7, array(  36,   64,   96,  112)),
+            array( 45,  196, 0, array(  40,   72,  108,  130)),
+            array( 49,  242, 0, array(  48,   88,  132,  156)),
+            array( 53,  292, 0, array(  60,  110,  160,  192)),
+            array( 57,  346, 0, array(  72,  130,  192,  224)), //10
+            array( 61,  404, 0, array(  80,  150,  224,  264)),
+            array( 65,  466, 0, array(  96,  176,  260,  308)),
+            array( 69,  532, 0, array( 104,  198,  288,  352)),
+            array( 73,  581, 3, array( 120,  216,  320,  384)),
+            array( 77,  655, 3, array( 132,  240,  360,  432)), //15
+            array( 81,  733, 3, array( 144,  280,  408,  480)),
+            array( 85,  815, 3, array( 168,  308,  448,  532)),
+            array( 89,  901, 3, array( 180,  338,  504,  588)),
+            array( 93,  991, 3, array( 196,  364,  546,  650)),
+            array( 97, 1085, 3, array( 224,  416,  600,  700)), //20
+            array(101, 1156, 4, array( 224,  442,  644,  750)),
+            array(105, 1258, 4, array( 252,  476,  690,  816)),
+            array(109, 1364, 4, array( 270,  504,  750,  900)),
+            array(113, 1474, 4, array( 300,  560,  810,  960)),
+            array(117, 1588, 4, array( 312,  588,  870, 1050)), //25
+            array(121, 1706, 4, array( 336,  644,  952, 1110)),
+            array(125, 1828, 4, array( 360,  700, 1020, 1200)),
+            array(129, 1921, 3, array( 390,  728, 1050, 1260)),
+            array(133, 2051, 3, array( 420,  784, 1140, 1350)),
+            array(137, 2185, 3, array( 450,  812, 1200, 1440)), //30
+            array(141, 2323, 3, array( 480,  868, 1290, 1530)),
+            array(145, 2465, 3, array( 510,  924, 1350, 1620)),
+            array(149, 2611, 3, array( 540,  980, 1440, 1710)),
+            array(153, 2761, 3, array( 570, 1036, 1530, 1800)),
+            array(157, 2876, 0, array( 570, 1064, 1590, 1890)), //35
+            array(161, 3034, 0, array( 600, 1120, 1680, 1980)),
+            array(165, 3196, 0, array( 630, 1204, 1770, 2100)),
+            array(169, 3362, 0, array( 660, 1260, 1860, 2220)),
+            array(173, 3532, 0, array( 720, 1316, 1950, 2310)),
+            array(177, 3706, 0, array( 750, 1372, 2040, 2430)) //40
+        );
+        
+        //----------------------------------------------------------------------
+        public static function getDataLength($version, $level)
+        {
+            return self::$capacity[$version][QRCAP_WORDS] - self::$capacity[$version][QRCAP_EC][$level];
+        }
+        
+        //----------------------------------------------------------------------
+        public static function getECCLength($version, $level)
+        {
+            return self::$capacity[$version][QRCAP_EC][$level];
+        }
+        
+        //----------------------------------------------------------------------
+        public static function getWidth($version)
+        {
+            return self::$capacity[$version][QRCAP_WIDTH];
+        }
+        
+        //----------------------------------------------------------------------
+        public static function getRemainder($version)
+        {
+            return self::$capacity[$version][QRCAP_REMINDER];
+        }
+        
+        //----------------------------------------------------------------------
+        public static function getMinimumVersion($size, $level)
+        {
+
+            for($i=1; $i<= QRSPEC_VERSION_MAX; $i++) {
+                $words  = self::$capacity[$i][QRCAP_WORDS] - self::$capacity[$i][QRCAP_EC][$level];
+                if($words >= $size) 
+                    return $i;
+            }
+
+            return -1;
+        }
+    
+        //######################################################################
+        
+        public static $lengthTableBits = array(
+            array(10, 12, 14),
+            array( 9, 11, 13),
+            array( 8, 16, 16),
+            array( 8, 10, 12)
+        );
+        
+        //----------------------------------------------------------------------
+        public static function lengthIndicator($mode, $version)
+        {
+            if ($mode == QR_MODE_STRUCTURE)
+                return 0;
+                
+            if ($version <= 9) {
+                $l = 0;
+            } else if ($version <= 26) {
+                $l = 1;
+            } else {
+                $l = 2;
+            }
+
+            return self::$lengthTableBits[$mode][$l];
+        }
+        
+        //----------------------------------------------------------------------
+        public static function maximumWords($mode, $version)
+        {
+            if($mode == QR_MODE_STRUCTURE) 
+                return 3;
+                
+            if($version <= 9) {
+                $l = 0;
+            } else if($version <= 26) {
+                $l = 1;
+            } else {
+                $l = 2;
+            }
+
+            $bits = self::$lengthTableBits[$mode][$l];
+            $words = (1 << $bits) - 1;
+            
+            if($mode == QR_MODE_KANJI) {
+                $words *= 2; // the number of bytes is required
+            }
+
+            return $words;
+        }
+
+        // Error correction code -----------------------------------------------
+        // Table of the error correction code (Reed-Solomon block)
+        // See Table 12-16 (pp.30-36), JIS X0510:2004.
+
+        public static $eccTable = array(
+            array(array( 0,  0), array( 0,  0), array( 0,  0), array( 0,  0)),
+            array(array( 1,  0), array( 1,  0), array( 1,  0), array( 1,  0)), // 1
+            array(array( 1,  0), array( 1,  0), array( 1,  0), array( 1,  0)),
+            array(array( 1,  0), array( 1,  0), array( 2,  0), array( 2,  0)),
+            array(array( 1,  0), array( 2,  0), array( 2,  0), array( 4,  0)),
+            array(array( 1,  0), array( 2,  0), array( 2,  2), array( 2,  2)), // 5
+            array(array( 2,  0), array( 4,  0), array( 4,  0), array( 4,  0)),
+            array(array( 2,  0), array( 4,  0), array( 2,  4), array( 4,  1)),
+            array(array( 2,  0), array( 2,  2), array( 4,  2), array( 4,  2)),
+            array(array( 2,  0), array( 3,  2), array( 4,  4), array( 4,  4)),
+            array(array( 2,  2), array( 4,  1), array( 6,  2), array( 6,  2)), //10
+            array(array( 4,  0), array( 1,  4), array( 4,  4), array( 3,  8)),
+            array(array( 2,  2), array( 6,  2), array( 4,  6), array( 7,  4)),
+            array(array( 4,  0), array( 8,  1), array( 8,  4), array(12,  4)),
+            array(array( 3,  1), array( 4,  5), array(11,  5), array(11,  5)),
+            array(array( 5,  1), array( 5,  5), array( 5,  7), array(11,  7)), //15
+            array(array( 5,  1), array( 7,  3), array(15,  2), array( 3, 13)),
+            array(array( 1,  5), array(10,  1), array( 1, 15), array( 2, 17)),
+            array(array( 5,  1), array( 9,  4), array(17,  1), array( 2, 19)),
+            array(array( 3,  4), array( 3, 11), array(17,  4), array( 9, 16)),
+            array(array( 3,  5), array( 3, 13), array(15,  5), array(15, 10)), //20
+            array(array( 4,  4), array(17,  0), array(17,  6), array(19,  6)),
+            array(array( 2,  7), array(17,  0), array( 7, 16), array(34,  0)),
+            array(array( 4,  5), array( 4, 14), array(11, 14), array(16, 14)),
+            array(array( 6,  4), array( 6, 14), array(11, 16), array(30,  2)),
+            array(array( 8,  4), array( 8, 13), array( 7, 22), array(22, 13)), //25
+            array(array(10,  2), array(19,  4), array(28,  6), array(33,  4)),
+            array(array( 8,  4), array(22,  3), array( 8, 26), array(12, 28)),
+            array(array( 3, 10), array( 3, 23), array( 4, 31), array(11, 31)),
+            array(array( 7,  7), array(21,  7), array( 1, 37), array(19, 26)),
+            array(array( 5, 10), array(19, 10), array(15, 25), array(23, 25)), //30
+            array(array(13,  3), array( 2, 29), array(42,  1), array(23, 28)),
+            array(array(17,  0), array(10, 23), array(10, 35), array(19, 35)),
+            array(array(17,  1), array(14, 21), array(29, 19), array(11, 46)),
+            array(array(13,  6), array(14, 23), array(44,  7), array(59,  1)),
+            array(array(12,  7), array(12, 26), array(39, 14), array(22, 41)), //35
+            array(array( 6, 14), array( 6, 34), array(46, 10), array( 2, 64)),
+            array(array(17,  4), array(29, 14), array(49, 10), array(24, 46)),
+            array(array( 4, 18), array(13, 32), array(48, 14), array(42, 32)),
+            array(array(20,  4), array(40,  7), array(43, 22), array(10, 67)),
+            array(array(19,  6), array(18, 31), array(34, 34), array(20, 61)),//40
+        );                                                                       
+
+        //----------------------------------------------------------------------
+        // CACHEABLE!!!
+        
+        public static function getEccSpec($version, $level, array &$spec)
+        {
+            if (count($spec) < 5) {
+                $spec = array(0,0,0,0,0);
+            }
+
+            $b1   = self::$eccTable[$version][$level][0];
+            $b2   = self::$eccTable[$version][$level][1];
+            $data = self::getDataLength($version, $level);
+            $ecc  = self::getECCLength($version, $level);
+
+            if($b2 == 0) {
+                $spec[0] = $b1;
+                $spec[1] = (int)($data / $b1);
+                $spec[2] = (int)($ecc / $b1);
+                $spec[3] = 0; 
+                $spec[4] = 0;
+            } else {
+                $spec[0] = $b1;
+                $spec[1] = (int)($data / ($b1 + $b2));
+                $spec[2] = (int)($ecc  / ($b1 + $b2));
+                $spec[3] = $b2;
+                $spec[4] = $spec[1] + 1;
+            }
+        }
+
+        // Alignment pattern ---------------------------------------------------
+
+        // Positions of alignment patterns.
+        // This array includes only the second and the third position of the 
+        // alignment patterns. Rest of them can be calculated from the distance 
+        // between them.
+         
+        // See Table 1 in Appendix E (pp.71) of JIS X0510:2004.
+         
+        public static $alignmentPattern = array(      
+            array( 0,  0),
+            array( 0,  0), array(18,  0), array(22,  0), array(26,  0), array(30,  0), // 1- 5
+            array(34,  0), array(22, 38), array(24, 42), array(26, 46), array(28, 50), // 6-10
+            array(30, 54), array(32, 58), array(34, 62), array(26, 46), array(26, 48), //11-15
+            array(26, 50), array(30, 54), array(30, 56), array(30, 58), array(34, 62), //16-20
+            array(28, 50), array(26, 50), array(30, 54), array(28, 54), array(32, 58), //21-25
+            array(30, 58), array(34, 62), array(26, 50), array(30, 54), array(26, 52), //26-30
+            array(30, 56), array(34, 60), array(30, 58), array(34, 62), array(30, 54), //31-35
+            array(24, 50), array(28, 54), array(32, 58), array(26, 54), array(30, 58), //35-40
+        );                                                                                  
+
+        
+        /** --------------------------------------------------------------------
+         * Put an alignment marker.
+         * @param frame
+         * @param width
+         * @param ox,oy center coordinate of the pattern
+         */
+        public static function putAlignmentMarker(array &$frame, $ox, $oy)
+        {
+            $finder = array(
+                "\xa1\xa1\xa1\xa1\xa1",
+                "\xa1\xa0\xa0\xa0\xa1",
+                "\xa1\xa0\xa1\xa0\xa1",
+                "\xa1\xa0\xa0\xa0\xa1",
+                "\xa1\xa1\xa1\xa1\xa1"
+            );                        
+            
+            $yStart = $oy-2;         
+            $xStart = $ox-2;
+            
+            for($y=0; $y<5; $y++) {
+                QRstr::set($frame, $xStart, $yStart+$y, $finder[$y]);
+            }
+        }
+
+        //----------------------------------------------------------------------
+        public static function putAlignmentPattern($version, &$frame, $width)
+        {
+            if($version < 2)
+                return;
+
+            $d = self::$alignmentPattern[$version][1] - self::$alignmentPattern[$version][0];
+            if($d < 0) {
+                $w = 2;
+            } else {
+                $w = (int)(($width - self::$alignmentPattern[$version][0]) / $d + 2);
+            }
+
+            if($w * $w - 3 == 1) {
+                $x = self::$alignmentPattern[$version][0];
+                $y = self::$alignmentPattern[$version][0];
+                self::putAlignmentMarker($frame, $x, $y);
+                return;
+            }
+
+            $cx = self::$alignmentPattern[$version][0];
+            for($x=1; $x<$w - 1; $x++) {
+                self::putAlignmentMarker($frame, 6, $cx);
+                self::putAlignmentMarker($frame, $cx,  6);
+                $cx += $d;
+            }
+
+            $cy = self::$alignmentPattern[$version][0];
+            for($y=0; $y<$w-1; $y++) {
+                $cx = self::$alignmentPattern[$version][0];
+                for($x=0; $x<$w-1; $x++) {
+                    self::putAlignmentMarker($frame, $cx, $cy);
+                    $cx += $d;
+                }
+                $cy += $d;
+            }
+        }
+
+        // Version information pattern -----------------------------------------
+
+		// Version information pattern (BCH coded).
+        // See Table 1 in Appendix D (pp.68) of JIS X0510:2004.
+        
+		// size: [QRSPEC_VERSION_MAX - 6]
+		
+        public static $versionPattern = array(
+            0x07c94, 0x085bc, 0x09a99, 0x0a4d3, 0x0bbf6, 0x0c762, 0x0d847, 0x0e60d,
+            0x0f928, 0x10b78, 0x1145d, 0x12a17, 0x13532, 0x149a6, 0x15683, 0x168c9,
+            0x177ec, 0x18ec4, 0x191e1, 0x1afab, 0x1b08e, 0x1cc1a, 0x1d33f, 0x1ed75,
+            0x1f250, 0x209d5, 0x216f0, 0x228ba, 0x2379f, 0x24b0b, 0x2542e, 0x26a64,
+            0x27541, 0x28c69
+        );
+
+        //----------------------------------------------------------------------
+        public static function getVersionPattern($version)
+        {
+            if($version < 7 || $version > QRSPEC_VERSION_MAX)
+                return 0;
+
+            return self::$versionPattern[$version -7];
+        }
+
+        // Format information --------------------------------------------------
+        // See calcFormatInfo in tests/test_qrspec.c (orginal qrencode c lib)
+        
+        public static $formatInfo = array(
+            array(0x77c4, 0x72f3, 0x7daa, 0x789d, 0x662f, 0x6318, 0x6c41, 0x6976),
+            array(0x5412, 0x5125, 0x5e7c, 0x5b4b, 0x45f9, 0x40ce, 0x4f97, 0x4aa0),
+            array(0x355f, 0x3068, 0x3f31, 0x3a06, 0x24b4, 0x2183, 0x2eda, 0x2bed),
+            array(0x1689, 0x13be, 0x1ce7, 0x19d0, 0x0762, 0x0255, 0x0d0c, 0x083b)
+        );
+
+        public static function getFormatInfo($mask, $level)
+        {
+            if($mask < 0 || $mask > 7)
+                return 0;
+                
+            if($level < 0 || $level > 3)
+                return 0;                
+
+            return self::$formatInfo[$level][$mask];
+        }
+
+        // Frame ---------------------------------------------------------------
+        // Cache of initial frames.
+         
+        public static $frames = array();
+
+        /** --------------------------------------------------------------------
+         * Put a finder pattern.
+         * @param frame
+         * @param width
+         * @param ox,oy upper-left coordinate of the pattern
+         */
+        public static function putFinderPattern(&$frame, $ox, $oy)
+        {
+            $finder = array(
+                "\xc1\xc1\xc1\xc1\xc1\xc1\xc1",
+                "\xc1\xc0\xc0\xc0\xc0\xc0\xc1",
+                "\xc1\xc0\xc1\xc1\xc1\xc0\xc1",
+                "\xc1\xc0\xc1\xc1\xc1\xc0\xc1",
+                "\xc1\xc0\xc1\xc1\xc1\xc0\xc1",
+                "\xc1\xc0\xc0\xc0\xc0\xc0\xc1",
+                "\xc1\xc1\xc1\xc1\xc1\xc1\xc1"
+            );                            
+            
+            for($y=0; $y<7; $y++) {
+                QRstr::set($frame, $ox, $oy+$y, $finder[$y]);
+            }
+        }
+
+        //----------------------------------------------------------------------
+        public static function createFrame($version)
+        {
+            $width = self::$capacity[$version][QRCAP_WIDTH];
+            $frameLine = str_repeat ("\0", $width);
+            $frame = array_fill(0, $width, $frameLine);
+
+            // Finder pattern
+            self::putFinderPattern($frame, 0, 0);
+            self::putFinderPattern($frame, $width - 7, 0);
+            self::putFinderPattern($frame, 0, $width - 7);
+            
+            // Separator
+            $yOffset = $width - 7;
+            
+            for($y=0; $y<7; $y++) {
+                $frame[$y][7] = "\xc0";
+                $frame[$y][$width - 8] = "\xc0";
+                $frame[$yOffset][7] = "\xc0";
+                $yOffset++;
+            }
+            
+            $setPattern = str_repeat("\xc0", 8);
+            
+            QRstr::set($frame, 0, 7, $setPattern);
+            QRstr::set($frame, $width-8, 7, $setPattern);
+            QRstr::set($frame, 0, $width - 8, $setPattern);
+        
+            // Format info
+            $setPattern = str_repeat("\x84", 9);
+            QRstr::set($frame, 0, 8, $setPattern);
+            QRstr::set($frame, $width - 8, 8, $setPattern, 8);
+            
+            $yOffset = $width - 8;
+
+            for($y=0; $y<8; $y++,$yOffset++) {
+                $frame[$y][8] = "\x84";
+                $frame[$yOffset][8] = "\x84";
+            }
+
+            // Timing pattern  
+            
+            for($i=1; $i<$width-15; $i++) {
+                $frame[6][7+$i] = chr(0x90 | ($i & 1));
+                $frame[7+$i][6] = chr(0x90 | ($i & 1));
+            }
+            
+            // Alignment pattern  
+            self::putAlignmentPattern($version, $frame, $width);
+            
+            // Version information 
+            if($version >= 7) {
+                $vinf = self::getVersionPattern($version);
+
+                $v = $vinf;
+                
+                for($x=0; $x<6; $x++) {
+                    for($y=0; $y<3; $y++) {
+                        $frame[($width - 11)+$y][$x] = chr(0x88 | ($v & 1));
+                        $v = $v >> 1;
+                    }
+                }
+
+                $v = $vinf;
+                for($y=0; $y<6; $y++) {
+                    for($x=0; $x<3; $x++) {
+                        $frame[$y][$x+($width - 11)] = chr(0x88 | ($v & 1));
+                        $v = $v >> 1;
+                    }
+                }
+            }
+    
+            // and a little bit...  
+            $frame[$width - 8][8] = "\x81";
+            
+            return $frame;
+        }
+
+        //----------------------------------------------------------------------
+        public static function debug($frame, $binary_mode = false)
+        {
+            if ($binary_mode) {
+            
+                    foreach ($frame as &$frameLine) {
+                        $frameLine = join('<span class="m">&nbsp;&nbsp;</span>', explode('0', $frameLine));
+                        $frameLine = join('&#9608;&#9608;', explode('1', $frameLine));
+                    }
+                    
+                    ?>
+                <style>
+                    .m { background-color: white; }
+                </style>
+                <?php
+                    echo '<pre><tt><br/ ><br/ ><br/ >&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;';
+                    echo join("<br/ >&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;", $frame);
+                    echo '</tt></pre><br/ ><br/ ><br/ ><br/ ><br/ ><br/ >';
+            
+            } else {
+            
+                foreach ($frame as &$frameLine) {
+                    $frameLine = join('<span class="m">&nbsp;</span>',  explode("\xc0", $frameLine));
+                    $frameLine = join('<span class="m">&#9618;</span>', explode("\xc1", $frameLine));
+                    $frameLine = join('<span class="p">&nbsp;</span>',  explode("\xa0", $frameLine));
+                    $frameLine = join('<span class="p">&#9618;</span>', explode("\xa1", $frameLine));
+                    $frameLine = join('<span class="s">&#9671;</span>', explode("\x84", $frameLine)); //format 0
+                    $frameLine = join('<span class="s">&#9670;</span>', explode("\x85", $frameLine)); //format 1
+                    $frameLine = join('<span class="x">&#9762;</span>', explode("\x81", $frameLine)); //special bit
+                    $frameLine = join('<span class="c">&nbsp;</span>',  explode("\x90", $frameLine)); //clock 0
+                    $frameLine = join('<span class="c">&#9719;</span>', explode("\x91", $frameLine)); //clock 1
+                    $frameLine = join('<span class="f">&nbsp;</span>',  explode("\x88", $frameLine)); //version
+                    $frameLine = join('<span class="f">&#9618;</span>', explode("\x89", $frameLine)); //version
+                    $frameLine = join('&#9830;', explode("\x01", $frameLine));
+                    $frameLine = join('&#8901;', explode("\0", $frameLine));
+                }
+                
+                ?>
+                <style>
+                    .p { background-color: yellow; }
+                    .m { background-color: #00FF00; }
+                    .s { background-color: #FF0000; }
+                    .c { background-color: aqua; }
+                    .x { background-color: pink; }
+                    .f { background-color: gold; }
+                </style>
+                <?php
+                echo "<pre><tt>";
+                echo join("<br/ >", $frame);
+                echo "</tt></pre>";
+            
+            }
+        }
+
+        //----------------------------------------------------------------------
+        public static function serial($frame)
+        {
+            return gzcompress(join("\n", $frame), 9);
+        }
+        
+        //----------------------------------------------------------------------
+        public static function unserial($code)
+        {
+            return explode("\n", gzuncompress($code));
+        }
+        
+        //----------------------------------------------------------------------
+        public static function newFrame($version)
+        {
+            if($version < 1 || $version > QRSPEC_VERSION_MAX) 
+                return null;
+
+            if(!isset(self::$frames[$version])) {
+                
+                $fileName = QR_CACHE_DIR.'frame_'.$version.'.dat';
+                
+                if (QR_CACHEABLE) {
+                    if (file_exists($fileName)) {
+                        self::$frames[$version] = self::unserial(file_get_contents($fileName));
+                    } else {
+                        self::$frames[$version] = self::createFrame($version);
+                        file_put_contents($fileName, self::serial(self::$frames[$version]));
+                    }
+                } else {
+                    self::$frames[$version] = self::createFrame($version);
+                }
+            }
+            
+            if(is_null(self::$frames[$version]))
+                return null;
+
+            return self::$frames[$version];
+        }
+
+        //----------------------------------------------------------------------
+        public static function rsBlockNum($spec)     { return $spec[0] + $spec[3]; }
+        public static function rsBlockNum1($spec)    { return $spec[0]; }
+        public static function rsDataCodes1($spec)   { return $spec[1]; }
+        public static function rsEccCodes1($spec)    { return $spec[2]; }
+        public static function rsBlockNum2($spec)    { return $spec[3]; }
+        public static function rsDataCodes2($spec)   { return $spec[4]; }
+        public static function rsEccCodes2($spec)    { return $spec[2]; }
+        public static function rsDataLength($spec)   { return ($spec[0] * $spec[1]) + ($spec[3] * $spec[4]);    }
+        public static function rsEccLength($spec)    { return ($spec[0] + $spec[3]) * $spec[2]; }
+        
+    }
+
+
+
+//---- qrimage.php -----------------------------
+
+
+
+
+/*
+ * PHP QR Code encoder
+ *
+ * Image output of code using GD2
+ *
+ * PHP QR Code is distributed under LGPL 3
+ * Copyright (C) 2010 Dominik Dzienia <deltalab at poczta dot fm>
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 3 of the License, or any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+ 
+    define('QR_IMAGE', true);
+
+    class QRimage {
+    
+        //----------------------------------------------------------------------
+        public static function png($frame, $filename = false, $pixelPerPoint = 4, $outerFrame = 4,$saveandprint=FALSE) 
+        {
+            $image = self::image($frame, $pixelPerPoint, $outerFrame);
+            
+            if ($filename === false) {
+                Header("Content-type: image/png");
+                ImagePng($image);
+            } else {
+                if($saveandprint===TRUE){
+                    ImagePng($image, $filename);
+                    header("Content-type: image/png");
+                    ImagePng($image);
+                }else{
+                    ImagePng($image, $filename);
+                }
+            }
+            
+            ImageDestroy($image);
+        }
+    
+        //----------------------------------------------------------------------
+        public static function jpg($frame, $filename = false, $pixelPerPoint = 8, $outerFrame = 4, $q = 85) 
+        {
+            $image = self::image($frame, $pixelPerPoint, $outerFrame);
+            
+            if ($filename === false) {
+                Header("Content-type: image/jpeg");
+                ImageJpeg($image, null, $q);
+            } else {
+                ImageJpeg($image, $filename, $q);            
+            }
+            
+            ImageDestroy($image);
+        }
+    
+        //----------------------------------------------------------------------
+        private static function image($frame, $pixelPerPoint = 4, $outerFrame = 4) 
+        {
+            $h = count($frame);
+            $w = strlen($frame[0]);
+            
+            $imgW = $w + 2*$outerFrame;
+            $imgH = $h + 2*$outerFrame;
+            
+            $base_image =ImageCreate($imgW, $imgH);
+            
+            $col[0] = ImageColorAllocate($base_image,255,255,255);
+            $col[1] = ImageColorAllocate($base_image,0,0,0);
+
+            imagefill($base_image, 0, 0, $col[0]);
+
+            for($y=0; $y<$h; $y++) {
+                for($x=0; $x<$w; $x++) {
+                    if ($frame[$y][$x] == '1') {
+                        ImageSetPixel($base_image,$x+$outerFrame,$y+$outerFrame,$col[1]); 
+                    }
+                }
+            }
+            
+            $target_image =ImageCreate($imgW * $pixelPerPoint, $imgH * $pixelPerPoint);
+            ImageCopyResized($target_image, $base_image, 0, 0, 0, 0, $imgW * $pixelPerPoint, $imgH * $pixelPerPoint, $imgW, $imgH);
+            ImageDestroy($base_image);
+            
+            return $target_image;
+        }
+    }
+
+
+
+//---- qrinput.php -----------------------------
+
+
+
+
+/*
+ * PHP QR Code encoder
+ *
+ * Input encoding class
+ *
+ * Based on libqrencode C library distributed under LGPL 2.1
+ * Copyright (C) 2006, 2007, 2008, 2009 Kentaro Fukuchi <fukuchi@megaui.net>
+ *
+ * PHP QR Code is distributed under LGPL 3
+ * Copyright (C) 2010 Dominik Dzienia <deltalab at poczta dot fm>
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 3 of the License, or any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+ 
+    define('STRUCTURE_HEADER_BITS',  20);
+    define('MAX_STRUCTURED_SYMBOLS', 16);
+
+    class QRinputItem {
+    
+        public $mode;
+        public $size;
+        public $data;
+        public $bstream;
+
+        public function __construct($mode, $size, $data, $bstream = null) 
+        {
+            $setData = array_slice($data, 0, $size);
+            
+            if (count($setData) < $size) {
+                $setData = array_merge($setData, array_fill(0,$size-count($setData),0));
+            }
+        
+            if(!QRinput::check($mode, $size, $setData)) {
+                throw new Exception('Error m:'.$mode.',s:'.$size.',d:'.join(',',$setData));
+                return null;
+            }
+            
+            $this->mode = $mode;
+            $this->size = $size;
+            $this->data = $setData;
+            $this->bstream = $bstream;
+        }
+        
+        //----------------------------------------------------------------------
+        public function encodeModeNum($version)
+        {
+            try {
+            
+                $words = (int)($this->size / 3);
+                $bs = new QRbitstream();
+                
+                $val = 0x1;
+                $bs->appendNum(4, $val);
+                $bs->appendNum(QRspec::lengthIndicator(QR_MODE_NUM, $version), $this->size);
+
+                for($i=0; $i<$words; $i++) {
+                    $val  = (ord($this->data[$i*3  ]) - ord('0')) * 100;
+                    $val += (ord($this->data[$i*3+1]) - ord('0')) * 10;
+                    $val += (ord($this->data[$i*3+2]) - ord('0'));
+                    $bs->appendNum(10, $val);
+                }
+
+                if($this->size - $words * 3 == 1) {
+                    $val = ord($this->data[$words*3]) - ord('0');
+                    $bs->appendNum(4, $val);
+                } else if($this->size - $words * 3 == 2) {
+                    $val  = (ord($this->data[$words*3  ]) - ord('0')) * 10;
+                    $val += (ord($this->data[$words*3+1]) - ord('0'));
+                    $bs->appendNum(7, $val);
+                }
+
+                $this->bstream = $bs;
+                return 0;
+                
+            } catch (Exception $e) {
+                return -1;
+            }
+        }
+        
+        //----------------------------------------------------------------------
+        public function encodeModeAn($version)
+        {
+            try {
+                $words = (int)($this->size / 2);
+                $bs = new QRbitstream();
+                
+                $bs->appendNum(4, 0x02);
+                $bs->appendNum(QRspec::lengthIndicator(QR_MODE_AN, $version), $this->size);
+
+                for($i=0; $i<$words; $i++) {
+                    $val  = (int)QRinput::lookAnTable(ord($this->data[$i*2  ])) * 45;
+                    $val += (int)QRinput::lookAnTable(ord($this->data[$i*2+1]));
+
+                    $bs->appendNum(11, $val);
+                }
+
+                if($this->size & 1) {
+                    $val = QRinput::lookAnTable(ord($this->data[$words * 2]));
+                    $bs->appendNum(6, $val);
+                }
+        
+                $this->bstream = $bs;
+                return 0;
+            
+            } catch (Exception $e) {
+                return -1;
+            }
+        }
+        
+        //----------------------------------------------------------------------
+        public function encodeMode8($version)
+        {
+            try {
+                $bs = new QRbitstream();
+
+                $bs->appendNum(4, 0x4);
+                $bs->appendNum(QRspec::lengthIndicator(QR_MODE_8, $version), $this->size);
+
+                for($i=0; $i<$this->size; $i++) {
+                    $bs->appendNum(8, ord($this->data[$i]));
+                }
+
+                $this->bstream = $bs;
+                return 0;
+            
+            } catch (Exception $e) {
+                return -1;
+            }
+        }
+        
+        //----------------------------------------------------------------------
+        public function encodeModeKanji($version)
+        {
+            try {
+
+                $bs = new QRbitrtream();
+                
+                $bs->appendNum(4, 0x8);
+                $bs->appendNum(QRspec::lengthIndicator(QR_MODE_KANJI, $version), (int)($this->size / 2));
+
+                for($i=0; $i<$this->size; $i+=2) {
+                    $val = (ord($this->data[$i]) << 8) | ord($this->data[$i+1]);
+                    if($val <= 0x9ffc) {
+                        $val -= 0x8140;
+                    } else {
+                        $val -= 0xc140;
+                    }
+                    
+                    $h = ($val >> 8) * 0xc0;
+                    $val = ($val & 0xff) + $h;
+
+                    $bs->appendNum(13, $val);
+                }
+
+                $this->bstream = $bs;
+                return 0;
+            
+            } catch (Exception $e) {
+                return -1;
+            }
+        }
+
+        //----------------------------------------------------------------------
+        public function encodeModeStructure()
+        {
+            try {
+                $bs =  new QRbitstream();
+                
+                $bs->appendNum(4, 0x03);
+                $bs->appendNum(4, ord($this->data[1]) - 1);
+                $bs->appendNum(4, ord($this->data[0]) - 1);
+                $bs->appendNum(8, ord($this->data[2]));
+
+                $this->bstream = $bs;
+                return 0;
+            
+            } catch (Exception $e) {
+                return -1;
+            }
+        }
+        
+        //----------------------------------------------------------------------
+        public function estimateBitStreamSizeOfEntry($version)
+        {
+            $bits = 0;
+
+            if($version == 0) 
+                $version = 1;
+
+            switch($this->mode) {
+                case QR_MODE_NUM:        $bits = QRinput::estimateBitsModeNum($this->size);    break;
+                case QR_MODE_AN:        $bits = QRinput::estimateBitsModeAn($this->size);    break;
+                case QR_MODE_8:            $bits = QRinput::estimateBitsMode8($this->size);    break;
+                case QR_MODE_KANJI:        $bits = QRinput::estimateBitsModeKanji($this->size);break;
+                case QR_MODE_STRUCTURE:    return STRUCTURE_HEADER_BITS;            
+                default:
+                    return 0;
+            }
+
+            $l = QRspec::lengthIndicator($this->mode, $version);
+            $m = 1 << $l;
+            $num = (int)(($this->size + $m - 1) / $m);
+
+            $bits += $num * (4 + $l);
+
+            return $bits;
+        }
+        
+        //----------------------------------------------------------------------
+        public function encodeBitStream($version)
+        {
+            try {
+            
+                unset($this->bstream);
+                $words = QRspec::maximumWords($this->mode, $version);
+                
+                if($this->size > $words) {
+                
+                    $st1 = new QRinputItem($this->mode, $words, $this->data);
+                    $st2 = new QRinputItem($this->mode, $this->size - $words, array_slice($this->data, $words));
+
+                    $st1->encodeBitStream($version);
+                    $st2->encodeBitStream($version);
+                    
+                    $this->bstream = new QRbitstream();
+                    $this->bstream->append($st1->bstream);
+                    $this->bstream->append($st2->bstream);
+                    
+                    unset($st1);
+                    unset($st2);
+                    
+                } else {
+                    
+                    $ret = 0;
+                    
+                    switch($this->mode) {
+                        case QR_MODE_NUM:        $ret = $this->encodeModeNum($version);    break;
+                        case QR_MODE_AN:        $ret = $this->encodeModeAn($version);    break;
+                        case QR_MODE_8:            $ret = $this->encodeMode8($version);    break;
+                        case QR_MODE_KANJI:        $ret = $this->encodeModeKanji($version);break;
+                        case QR_MODE_STRUCTURE:    $ret = $this->encodeModeStructure();    break;
+                        
+                        default:
+                            break;
+                    }
+                    
+                    if($ret < 0)
+                        return -1;
+                }
+
+                return $this->bstream->size();
+            
+            } catch (Exception $e) {
+                return -1;
+            }
+        }
+    };
+    
+    //##########################################################################
+
+    class QRinput {
+
+        public $items;
+        
+        private $version;
+        private $level;
+        
+        //----------------------------------------------------------------------
+        public function __construct($version = 0, $level = QR_ECLEVEL_L)
+        {
+            if ($version < 0 || $version > QRSPEC_VERSION_MAX || $level > QR_ECLEVEL_H) {
+                throw new Exception('Invalid version no');
+                return NULL;
+            }
+            
+            $this->version = $version;
+            $this->level = $level;
+        }
+        
+        //----------------------------------------------------------------------
+        public function getVersion()
+        {
+            return $this->version;
+        }
+        
+        //----------------------------------------------------------------------
+        public function setVersion($version)
+        {
+            if($version < 0 || $version > QRSPEC_VERSION_MAX) {
+                throw new Exception('Invalid version no');
+                return -1;
+            }
+
+            $this->version = $version;
+
+            return 0;
+        }
+        
+        //----------------------------------------------------------------------
+        public function getErrorCorrectionLevel()
+        {
+            return $this->level;
+        }
+
+        //----------------------------------------------------------------------
+        public function setErrorCorrectionLevel($level)
+        {
+            if($level > QR_ECLEVEL_H) {
+                throw new Exception('Invalid ECLEVEL');
+                return -1;
+            }
+
+            $this->level = $level;
+
+            return 0;
+        }
+        
+        //----------------------------------------------------------------------
+        public function appendEntry(QRinputItem $entry)
+        {
+            $this->items[] = $entry;
+        }
+        
+        //----------------------------------------------------------------------
+        public function append($mode, $size, $data)
+        {
+            try {
+                $entry = new QRinputItem($mode, $size, $data);
+                $this->items[] = $entry;
+                return 0;
+            } catch (Exception $e) {
+                return -1;
+            }
+        }
+        
+        //----------------------------------------------------------------------
+        
+        public function insertStructuredAppendHeader($size, $index, $parity)
+        {
+            if( $size > MAX_STRUCTURED_SYMBOLS ) {
+                throw new Exception('insertStructuredAppendHeader wrong size');
+            }
+            
+            if( $index <= 0 || $index > MAX_STRUCTURED_SYMBOLS ) {
+                throw new Exception('insertStructuredAppendHeader wrong index');
+            }
+
+            $buf = array($size, $index, $parity);
+            
+            try {
+                $entry = new QRinputItem(QR_MODE_STRUCTURE, 3, buf);
+                array_unshift($this->items, $entry);
+                return 0;
+            } catch (Exception $e) {
+                return -1;
+            }
+        }
+
+        //----------------------------------------------------------------------
+        public function calcParity()
+        {
+            $parity = 0;
+            
+            foreach($this->items as $item) {
+                if($item->mode != QR_MODE_STRUCTURE) {
+                    for($i=$item->size-1; $i>=0; $i--) {
+                        $parity ^= $item->data[$i];
+                    }
+                }
+            }
+
+            return $parity;
+        }
+        
+        //----------------------------------------------------------------------
+        public static function checkModeNum($size, $data)
+        {
+            for($i=0; $i<$size; $i++) {
+                if((ord($data[$i]) < ord('0')) || (ord($data[$i]) > ord('9'))){
+                    return false;
+                }
+            }
+
+            return true;
+        }
+
+        //----------------------------------------------------------------------
+        public static function estimateBitsModeNum($size)
+        {
+            $w = (int)$size / 3;
+            $bits = $w * 10;
+            
+            switch($size - $w * 3) {
+                case 1:
+                    $bits += 4;
+                    break;
+                case 2:
+                    $bits += 7;
+                    break;
+                default:
+                    break;
+            }
+
+            return $bits;
+        }
+        
+        //----------------------------------------------------------------------
+        public static $anTable = array(
+            -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
+            -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
+            36, -1, -1, -1, 37, 38, -1, -1, -1, -1, 39, 40, -1, 41, 42, 43,
+             0,  1,  2,  3,  4,  5,  6,  7,  8,  9, 44, -1, -1, -1, -1, -1,
+            -1, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24,
+            25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, -1, -1, -1, -1, -1,
+            -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
+            -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1
+        );
+        
+        //----------------------------------------------------------------------
+        public static function lookAnTable($c)
+        {
+            return (($c > 127)?-1:self::$anTable[$c]);
+        }
+        
+        //----------------------------------------------------------------------
+        public static function checkModeAn($size, $data)
+        {
+            for($i=0; $i<$size; $i++) {
+                if (self::lookAnTable(ord($data[$i])) == -1) {
+                    return false;
+                }
+            }
+
+            return true;
+        }
+        
+        //----------------------------------------------------------------------
+        public static function estimateBitsModeAn($size)
+        {
+            $w = (int)($size / 2);
+            $bits = $w * 11;
+            
+            if($size & 1) {
+                $bits += 6;
+            }
+
+            return $bits;
+        }
+    
+        //----------------------------------------------------------------------
+        public static function estimateBitsMode8($size)
+        {
+            return $size * 8;
+        }
+        
+        //----------------------------------------------------------------------
+        public function estimateBitsModeKanji($size)
+        {
+            return (int)(($size / 2) * 13);
+        }
+        
+        //----------------------------------------------------------------------
+        public static function checkModeKanji($size, $data)
+        {
+            if($size & 1)
+                return false;
+
+            for($i=0; $i<$size; $i+=2) {
+                $val = (ord($data[$i]) << 8) | ord($data[$i+1]);
+                if( $val < 0x8140 
+                || ($val > 0x9ffc && $val < 0xe040) 
+                || $val > 0xebbf) {
+                    return false;
+                }
+            }
+
+            return true;
+        }
+
+        /***********************************************************************
+         * Validation
+         **********************************************************************/
+
+        public static function check($mode, $size, $data)
+        {
+            if($size <= 0) 
+                return false;
+
+            switch($mode) {
+                case QR_MODE_NUM:       return self::checkModeNum($size, $data);   break;
+                case QR_MODE_AN:        return self::checkModeAn($size, $data);    break;
+                case QR_MODE_KANJI:     return self::checkModeKanji($size, $data); break;
+                case QR_MODE_8:         return true; break;
+                case QR_MODE_STRUCTURE: return true; break;
+                
+                default:
+                    break;
+            }
+
+            return false;
+        }
+        
+        
+        //----------------------------------------------------------------------
+        public function estimateBitStreamSize($version)
+        {
+            $bits = 0;
+
+            foreach($this->items as $item) {
+                $bits += $item->estimateBitStreamSizeOfEntry($version);
+            }
+
+            return $bits;
+        }
+        
+        //----------------------------------------------------------------------
+        public function estimateVersion()
+        {
+            $version = 0;
+            $prev = 0;
+            do {
+                $prev = $version;
+                $bits = $this->estimateBitStreamSize($prev);
+                $version = QRspec::getMinimumVersion((int)(($bits + 7) / 8), $this->level);
+                if ($version < 0) {
+                    return -1;
+                }
+            } while ($version > $prev);
+
+            return $version;
+        }
+        
+        //----------------------------------------------------------------------
+        public static function lengthOfCode($mode, $version, $bits)
+        {
+            $payload = $bits - 4 - QRspec::lengthIndicator($mode, $version);
+            switch($mode) {
+                case QR_MODE_NUM:
+                    $chunks = (int)($payload / 10);
+                    $remain = $payload - $chunks * 10;
+                    $size = $chunks * 3;
+                    if($remain >= 7) {
+                        $size += 2;
+                    } else if($remain >= 4) {
+                        $size += 1;
+                    }
+                    break;
+                case QR_MODE_AN:
+                    $chunks = (int)($payload / 11);
+                    $remain = $payload - $chunks * 11;
+                    $size = $chunks * 2;
+                    if($remain >= 6) 
+                        $size++;
+                    break;
+                case QR_MODE_8:
+                    $size = (int)($payload / 8);
+                    break;
+                case QR_MODE_KANJI:
+                    $size = (int)(($payload / 13) * 2);
+                    break;
+                case QR_MODE_STRUCTURE:
+                    $size = (int)($payload / 8);
+                    break;
+                default:
+                    $size = 0;
+                    break;
+            }
+            
+            $maxsize = QRspec::maximumWords($mode, $version);
+            if($size < 0) $size = 0;
+            if($size > $maxsize) $size = $maxsize;
+
+            return $size;
+        }
+        
+        //----------------------------------------------------------------------
+        public function createBitStream()
+        {
+            $total = 0;
+
+            foreach($this->items as $item) {
+                $bits = $item->encodeBitStream($this->version);
+                
+                if($bits < 0) 
+                    return -1;
+                    
+                $total += $bits;
+            }
+
+            return $total;
+        }
+        
+        //----------------------------------------------------------------------
+        public function convertData()
+        {
+            $ver = $this->estimateVersion();
+            if($ver > $this->getVersion()) {
+                $this->setVersion($ver);
+            }
+
+            for(;;) {
+                $bits = $this->createBitStream();
+                
+                if($bits < 0) 
+                    return -1;
+                    
+                $ver = QRspec::getMinimumVersion((int)(($bits + 7) / 8), $this->level);
+                if($ver < 0) {
+                    throw new Exception('WRONG VERSION');
+                    return -1;
+                } else if($ver > $this->getVersion()) {
+                    $this->setVersion($ver);
+                } else {
+                    break;
+                }
+            }
+
+            return 0;
+        }
+        
+        //----------------------------------------------------------------------
+        public function appendPaddingBit(&$bstream)
+        {
+            $bits = $bstream->size();
+            $maxwords = QRspec::getDataLength($this->version, $this->level);
+            $maxbits = $maxwords * 8;
+
+            if ($maxbits == $bits) {
+                return 0;
+            }
+
+            if ($maxbits - $bits < 5) {
+                return $bstream->appendNum($maxbits - $bits, 0);
+            }
+
+            $bits += 4;
+            $words = (int)(($bits + 7) / 8);
+
+            $padding = new QRbitstream();
+            $ret = $padding->appendNum($words * 8 - $bits + 4, 0);
+            
+            if($ret < 0) 
+                return $ret;
+
+            $padlen = $maxwords - $words;
+            
+            if($padlen > 0) {
+                
+                $padbuf = array();
+                for($i=0; $i<$padlen; $i++) {
+                    $padbuf[$i] = ($i&1)?0x11:0xec;
+                }
+                
+                $ret = $padding->appendBytes($padlen, $padbuf);
+                
+                if($ret < 0)
+                    return $ret;
+                
+            }
+
+            $ret = $bstream->append($padding);
+            
+            return $ret;
+        }
+
+        //----------------------------------------------------------------------
+        public function mergeBitStream()
+        {
+            if($this->convertData() < 0) {
+                return null;
+            }
+
+            $bstream = new QRbitstream();
+            
+            foreach($this->items as $item) {
+                $ret = $bstream->append($item->bstream);
+                if($ret < 0) {
+                    return null;
+                }
+            }
+
+            return $bstream;
+        }
+
+        //----------------------------------------------------------------------
+        public function getBitStream()
+        {
+
+            $bstream = $this->mergeBitStream();
+            
+            if($bstream == null) {
+                return null;
+            }
+            
+            $ret = $this->appendPaddingBit($bstream);
+            if($ret < 0) {
+                return null;
+            }
+
+            return $bstream;
+        }
+        
+        //----------------------------------------------------------------------
+        public function getByteStream()
+        {
+            $bstream = $this->getBitStream();
+            if($bstream == null) {
+                return null;
+            }
+            
+            return $bstream->toByte();
+        }
+    }
+        
+        
+    
+
+
+
+//---- qrbitstream.php -----------------------------
+
+
+
+
+/*
+ * PHP QR Code encoder
+ *
+ * Bitstream class
+ *
+ * Based on libqrencode C library distributed under LGPL 2.1
+ * Copyright (C) 2006, 2007, 2008, 2009 Kentaro Fukuchi <fukuchi@megaui.net>
+ *
+ * PHP QR Code is distributed under LGPL 3
+ * Copyright (C) 2010 Dominik Dzienia <deltalab at poczta dot fm>
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 3 of the License, or any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+     
+    class QRbitstream {
+    
+        public $data = array();
+        
+        //----------------------------------------------------------------------
+        public function size()
+        {
+            return count($this->data);
+        }
+        
+        //----------------------------------------------------------------------
+        public function allocate($setLength)
+        {
+            $this->data = array_fill(0, $setLength, 0);
+            return 0;
+        }
+    
+        //----------------------------------------------------------------------
+        public static function newFromNum($bits, $num)
+        {
+            $bstream = new QRbitstream();
+            $bstream->allocate($bits);
+            
+            $mask = 1 << ($bits - 1);
+            for($i=0; $i<$bits; $i++) {
+                if($num & $mask) {
+                    $bstream->data[$i] = 1;
+                } else {
+                    $bstream->data[$i] = 0;
+                }
+                $mask = $mask >> 1;
+            }
+
+            return $bstream;
+        }
+        
+        //----------------------------------------------------------------------
+        public static function newFromBytes($size, $data)
+        {
+            $bstream = new QRbitstream();
+            $bstream->allocate($size * 8);
+            $p=0;
+
+            for($i=0; $i<$size; $i++) {
+                $mask = 0x80;
+                for($j=0; $j<8; $j++) {
+                    if($data[$i] & $mask) {
+                        $bstream->data[$p] = 1;
+                    } else {
+                        $bstream->data[$p] = 0;
+                    }
+                    $p++;
+                    $mask = $mask >> 1;
+                }
+            }
+
+            return $bstream;
+        }
+        
+        //----------------------------------------------------------------------
+        public function append(QRbitstream $arg)
+        {
+            if (is_null($arg)) {
+                return -1;
+            }
+            
+            if($arg->size() == 0) {
+                return 0;
+            }
+            
+            if($this->size() == 0) {
+                $this->data = $arg->data;
+                return 0;
+            }
+            
+            $this->data = array_values(array_merge($this->data, $arg->data));
+
+            return 0;
+        }
+        
+        //----------------------------------------------------------------------
+        public function appendNum($bits, $num)
+        {
+            if ($bits == 0) 
+                return 0;
+
+            $b = QRbitstream::newFromNum($bits, $num);
+            
+            if(is_null($b))
+                return -1;
+
+            $ret = $this->append($b);
+            unset($b);
+
+            return $ret;
+        }
+
+        //----------------------------------------------------------------------
+        public function appendBytes($size, $data)
+        {
+            if ($size == 0) 
+                return 0;
+
+            $b = QRbitstream::newFromBytes($size, $data);
+            
+            if(is_null($b))
+                return -1;
+
+            $ret = $this->append($b);
+            unset($b);
+
+            return $ret;
+        }
+        
+        //----------------------------------------------------------------------
+        public function toByte()
+        {
+        
+            $size = $this->size();
+
+            if($size == 0) {
+                return array();
+            }
+            
+            $data = array_fill(0, (int)(($size + 7) / 8), 0);
+            $bytes = (int)($size / 8);
+
+            $p = 0;
+            
+            for($i=0; $i<$bytes; $i++) {
+                $v = 0;
+                for($j=0; $j<8; $j++) {
+                    $v = $v << 1;
+                    $v |= $this->data[$p];
+                    $p++;
+                }
+                $data[$i] = $v;
+            }
+            
+            if($size & 7) {
+                $v = 0;
+                for($j=0; $j<($size & 7); $j++) {
+                    $v = $v << 1;
+                    $v |= $this->data[$p];
+                    $p++;
+                }
+                $data[$bytes] = $v;
+            }
+
+            return $data;
+        }
+
+    }
+
+
+
+
+//---- qrsplit.php -----------------------------
+
+
+
+
+/*
+ * PHP QR Code encoder
+ *
+ * Input splitting classes
+ *
+ * Based on libqrencode C library distributed under LGPL 2.1
+ * Copyright (C) 2006, 2007, 2008, 2009 Kentaro Fukuchi <fukuchi@megaui.net>
+ *
+ * PHP QR Code is distributed under LGPL 3
+ * Copyright (C) 2010 Dominik Dzienia <deltalab at poczta dot fm>
+ *
+ * The following data / specifications are taken from
+ * "Two dimensional symbol -- QR-code -- Basic Specification" (JIS X0510:2004)
+ *  or
+ * "Automatic identification and data capture techniques -- 
+ *  QR Code 2005 bar code symbology specification" (ISO/IEC 18004:2006)
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 3 of the License, or any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+    class QRsplit {
+
+        public $dataStr = '';
+        public $input;
+        public $modeHint;
+
+        //----------------------------------------------------------------------
+        public function __construct($dataStr, $input, $modeHint) 
+        {
+            $this->dataStr  = $dataStr;
+            $this->input    = $input;
+            $this->modeHint = $modeHint;
+        }
+        
+        //----------------------------------------------------------------------
+        public static function isdigitat($str, $pos)
+        {    
+            if ($pos >= strlen($str))
+                return false;
+            
+            return ((ord($str[$pos]) >= ord('0'))&&(ord($str[$pos]) <= ord('9')));
+        }
+        
+        //----------------------------------------------------------------------
+        public static function isalnumat($str, $pos)
+        {
+            if ($pos >= strlen($str))
+                return false;
+                
+            return (QRinput::lookAnTable(ord($str[$pos])) >= 0);
+        }
+
+        //----------------------------------------------------------------------
+        public function identifyMode($pos)
+        {
+            if ($pos >= strlen($this->dataStr)) 
+                return QR_MODE_NUL;
+                
+            $c = $this->dataStr[$pos];
+            
+            if(self::isdigitat($this->dataStr, $pos)) {
+                return QR_MODE_NUM;
+            } else if(self::isalnumat($this->dataStr, $pos)) {
+                return QR_MODE_AN;
+            } else if($this->modeHint == QR_MODE_KANJI) {
+            
+                if ($pos+1 < strlen($this->dataStr)) 
+                {
+                    $d = $this->dataStr[$pos+1];
+                    $word = (ord($c) << 8) | ord($d);
+                    if(($word >= 0x8140 && $word <= 0x9ffc) || ($word >= 0xe040 && $word <= 0xebbf)) {
+                        return QR_MODE_KANJI;
+                    }
+                }
+            }
+
+            return QR_MODE_8;
+        } 
+        
+        //----------------------------------------------------------------------
+        public function eatNum()
+        {
+            $ln = QRspec::lengthIndicator(QR_MODE_NUM, $this->input->getVersion());
+
+            $p = 0;
+            while(self::isdigitat($this->dataStr, $p)) {
+                $p++;
+            }
+            
+            $run = $p;
+            $mode = $this->identifyMode($p);
+            
+            if($mode == QR_MODE_8) {
+                $dif = QRinput::estimateBitsModeNum($run) + 4 + $ln
+                     + QRinput::estimateBitsMode8(1)         // + 4 + l8
+                     - QRinput::estimateBitsMode8($run + 1); // - 4 - l8
+                if($dif > 0) {
+                    return $this->eat8();
+                }
+            }
+            if($mode == QR_MODE_AN) {
+                $dif = QRinput::estimateBitsModeNum($run) + 4 + $ln
+                     + QRinput::estimateBitsModeAn(1)        // + 4 + la
+                     - QRinput::estimateBitsModeAn($run + 1);// - 4 - la
+                if($dif > 0) {
+                    return $this->eatAn();
+                }
+            }
+            
+            $ret = $this->input->append(QR_MODE_NUM, $run, str_split($this->dataStr));
+            if($ret < 0)
+                return -1;
+
+            return $run;
+        }
+        
+        //----------------------------------------------------------------------
+        public function eatAn()
+        {
+            $la = QRspec::lengthIndicator(QR_MODE_AN,  $this->input->getVersion());
+            $ln = QRspec::lengthIndicator(QR_MODE_NUM, $this->input->getVersion());
+
+            $p = 0;
+            
+            while(self::isalnumat($this->dataStr, $p)) {
+                if(self::isdigitat($this->dataStr, $p)) {
+                    $q = $p;
+                    while(self::isdigitat($this->dataStr, $q)) {
+                        $q++;
+                    }
+                    
+                    $dif = QRinput::estimateBitsModeAn($p) // + 4 + la
+                         + QRinput::estimateBitsModeNum($q - $p) + 4 + $ln
+                         - QRinput::estimateBitsModeAn($q); // - 4 - la
+                         
+                    if($dif < 0) {
+                        break;
+                    } else {
+                        $p = $q;
+                    }
+                } else {
+                    $p++;
+                }
+            }
+
+            $run = $p;
+
+            if(!self::isalnumat($this->dataStr, $p)) {
+                $dif = QRinput::estimateBitsModeAn($run) + 4 + $la
+                     + QRinput::estimateBitsMode8(1) // + 4 + l8
+                      - QRinput::estimateBitsMode8($run + 1); // - 4 - l8
+                if($dif > 0) {
+                    return $this->eat8();
+                }
+            }
+
+            $ret = $this->input->append(QR_MODE_AN, $run, str_split($this->dataStr));
+            if($ret < 0)
+                return -1;
+
+            return $run;
+        }
+        
+        //----------------------------------------------------------------------
+        public function eatKanji()
+        {
+            $p = 0;
+            
+            while($this->identifyMode($p) == QR_MODE_KANJI) {
+                $p += 2;
+            }
+            
+            $ret = $this->input->append(QR_MODE_KANJI, $p, str_split($this->dataStr));
+            if($ret < 0)
+                return -1;
+
+            return $run;
+        }
+
+        //----------------------------------------------------------------------
+        public function eat8()
+        {
+            $la = QRspec::lengthIndicator(QR_MODE_AN, $this->input->getVersion());
+            $ln = QRspec::lengthIndicator(QR_MODE_NUM, $this->input->getVersion());
+
+            $p = 1;
+            $dataStrLen = strlen($this->dataStr);
+            
+            while($p < $dataStrLen) {
+                
+                $mode = $this->identifyMode($p);
+                if($mode == QR_MODE_KANJI) {
+                    break;
+                }
+                if($mode == QR_MODE_NUM) {
+                    $q = $p;
+                    while(self::isdigitat($this->dataStr, $q)) {
+                        $q++;
+                    }
+                    $dif = QRinput::estimateBitsMode8($p) // + 4 + l8
+                         + QRinput::estimateBitsModeNum($q - $p) + 4 + $ln
+                         - QRinput::estimateBitsMode8($q); // - 4 - l8
+                    if($dif < 0) {
+                        break;
+                    } else {
+                        $p = $q;
+                    }
+                } else if($mode == QR_MODE_AN) {
+                    $q = $p;
+                    while(self::isalnumat($this->dataStr, $q)) {
+                        $q++;
+                    }
+                    $dif = QRinput::estimateBitsMode8($p)  // + 4 + l8
+                         + QRinput::estimateBitsModeAn($q - $p) + 4 + $la
+                         - QRinput::estimateBitsMode8($q); // - 4 - l8
+                    if($dif < 0) {
+                        break;
+                    } else {
+                        $p = $q;
+                    }
+                } else {
+                    $p++;
+                }
+            }
+
+            $run = $p;
+            $ret = $this->input->append(QR_MODE_8, $run, str_split($this->dataStr));
+            
+            if($ret < 0)
+                return -1;
+
+            return $run;
+        }
+
+        //----------------------------------------------------------------------
+        public function splitString()
+        {
+            while (strlen($this->dataStr) > 0)
+            {
+                if($this->dataStr == '')
+                    return 0;
+
+                $mode = $this->identifyMode(0);
+                
+                switch ($mode) {
+                    case QR_MODE_NUM: $length = $this->eatNum(); break;
+                    case QR_MODE_AN:  $length = $this->eatAn(); break;
+                    case QR_MODE_KANJI:
+                        if ($hint == QR_MODE_KANJI)
+                                $length = $this->eatKanji();
+                        else    $length = $this->eat8();
+                        break;
+                    default: $length = $this->eat8(); break;
+                
+                }
+
+                if($length == 0) return 0;
+                if($length < 0)  return -1;
+                
+                $this->dataStr = substr($this->dataStr, $length);
+            }
+        }
+
+        //----------------------------------------------------------------------
+        public function toUpper()
+        {
+            $stringLen = strlen($this->dataStr);
+            $p = 0;
+            
+            while ($p<$stringLen) {
+                $mode = self::identifyMode(substr($this->dataStr, $p), $this->modeHint);
+                if($mode == QR_MODE_KANJI) {
+                    $p += 2;
+                } else {
+                    if (ord($this->dataStr[$p]) >= ord('a') && ord($this->dataStr[$p]) <= ord('z')) {
+                        $this->dataStr[$p] = chr(ord($this->dataStr[$p]) - 32);
+                    }
+                    $p++;
+                }
+            }
+
+            return $this->dataStr;
+        }
+
+        //----------------------------------------------------------------------
+        public static function splitStringToQRinput($string, QRinput $input, $modeHint, $casesensitive = true)
+        {
+            if(is_null($string) || $string == '\0' || $string == '') {
+                throw new Exception('empty string!!!');
+            }
+
+            $split = new QRsplit($string, $input, $modeHint);
+            
+            if(!$casesensitive)
+                $split->toUpper();
+                
+            return $split->splitString();
+        }
+    }
+
+
+
+//---- qrrscode.php -----------------------------
+
+
+
+
+/*
+ * PHP QR Code encoder
+ *
+ * Reed-Solomon error correction support
+ * 
+ * Copyright (C) 2002, 2003, 2004, 2006 Phil Karn, KA9Q
+ * (libfec is released under the GNU Lesser General Public License.)
+ *
+ * Based on libqrencode C library distributed under LGPL 2.1
+ * Copyright (C) 2006, 2007, 2008, 2009 Kentaro Fukuchi <fukuchi@megaui.net>
+ *
+ * PHP QR Code is distributed under LGPL 3
+ * Copyright (C) 2010 Dominik Dzienia <deltalab at poczta dot fm>
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 3 of the License, or any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+ 
+    class QRrsItem {
+    
+        public $mm;                  // Bits per symbol 
+        public $nn;                  // Symbols per block (= (1<<mm)-1) 
+        public $alpha_to = array();  // log lookup table 
+        public $index_of = array();  // Antilog lookup table 
+        public $genpoly = array();   // Generator polynomial 
+        public $nroots;              // Number of generator roots = number of parity symbols 
+        public $fcr;                 // First consecutive root, index form 
+        public $prim;                // Primitive element, index form 
+        public $iprim;               // prim-th root of 1, index form 
+        public $pad;                 // Padding bytes in shortened block 
+        public $gfpoly;
+    
+        //----------------------------------------------------------------------
+        public function modnn($x)
+        {
+            while ($x >= $this->nn) {
+                $x -= $this->nn;
+                $x = ($x >> $this->mm) + ($x & $this->nn);
+            }
+            
+            return $x;
+        }
+        
+        //----------------------------------------------------------------------
+        public static function init_rs_char($symsize, $gfpoly, $fcr, $prim, $nroots, $pad)
+        {
+            // Common code for intializing a Reed-Solomon control block (char or int symbols)
+            // Copyright 2004 Phil Karn, KA9Q
+            // May be used under the terms of the GNU Lesser General Public License (LGPL)
+
+            $rs = null;
+            
+            // Check parameter ranges
+            if($symsize < 0 || $symsize > 8)                     return $rs;
+            if($fcr < 0 || $fcr >= (1<<$symsize))                return $rs;
+            if($prim <= 0 || $prim >= (1<<$symsize))             return $rs;
+            if($nroots < 0 || $nroots >= (1<<$symsize))          return $rs; // Can't have more roots than symbol values!
+            if($pad < 0 || $pad >= ((1<<$symsize) -1 - $nroots)) return $rs; // Too much padding
+
+            $rs = new QRrsItem();
+            $rs->mm = $symsize;
+            $rs->nn = (1<<$symsize)-1;
+            $rs->pad = $pad;
+
+            $rs->alpha_to = array_fill(0, $rs->nn+1, 0);
+            $rs->index_of = array_fill(0, $rs->nn+1, 0);
+          
+            // PHP style macro replacement ;)
+            $NN =& $rs->nn;
+            $A0 =& $NN;
+            
+            // Generate Galois field lookup tables
+            $rs->index_of[0] = $A0; // log(zero) = -inf
+            $rs->alpha_to[$A0] = 0; // alpha**-inf = 0
+            $sr = 1;
+          
+            for($i=0; $i<$rs->nn; $i++) {
+                $rs->index_of[$sr] = $i;
+                $rs->alpha_to[$i] = $sr;
+                $sr <<= 1;
+                if($sr & (1<<$symsize)) {
+                    $sr ^= $gfpoly;
+                }
+                $sr &= $rs->nn;
+            }
+            
+            if($sr != 1){
+                // field generator polynomial is not primitive!
+                $rs = NULL;
+                return $rs;
+            }
+
+            /* Form RS code generator polynomial from its roots */
+            $rs->genpoly = array_fill(0, $nroots+1, 0);
+        
+            $rs->fcr = $fcr;
+            $rs->prim = $prim;
+            $rs->nroots = $nroots;
+            $rs->gfpoly = $gfpoly;
+
+            /* Find prim-th root of 1, used in decoding */
+            for($iprim=1;($iprim % $prim) != 0;$iprim += $rs->nn)
+            ; // intentional empty-body loop!
+            
+            $rs->iprim = (int)($iprim / $prim);
+            $rs->genpoly[0] = 1;
+            
+            for ($i = 0,$root=$fcr*$prim; $i < $nroots; $i++, $root += $prim) {
+                $rs->genpoly[$i+1] = 1;
+
+                // Multiply rs->genpoly[] by  @**(root + x)
+                for ($j = $i; $j > 0; $j--) {
+                    if ($rs->genpoly[$j] != 0) {
+                        $rs->genpoly[$j] = $rs->genpoly[$j-1] ^ $rs->alpha_to[$rs->modnn($rs->index_of[$rs->genpoly[$j]] + $root)];
+                    } else {
+                        $rs->genpoly[$j] = $rs->genpoly[$j-1];
+                    }
+                }
+                // rs->genpoly[0] can never be zero
+                $rs->genpoly[0] = $rs->alpha_to[$rs->modnn($rs->index_of[$rs->genpoly[0]] + $root)];
+            }
+            
+            // convert rs->genpoly[] to index form for quicker encoding
+            for ($i = 0; $i <= $nroots; $i++)
+                $rs->genpoly[$i] = $rs->index_of[$rs->genpoly[$i]];
+
+            return $rs;
+        }
+        
+        //----------------------------------------------------------------------
+        public function encode_rs_char($data, &$parity)
+        {
+            $MM       =& $this->mm;
+            $NN       =& $this->nn;
+            $ALPHA_TO =& $this->alpha_to;
+            $INDEX_OF =& $this->index_of;
+            $GENPOLY  =& $this->genpoly;
+            $NROOTS   =& $this->nroots;
+            $FCR      =& $this->fcr;
+            $PRIM     =& $this->prim;
+            $IPRIM    =& $this->iprim;
+            $PAD      =& $this->pad;
+            $A0       =& $NN;
+
+            $parity = array_fill(0, $NROOTS, 0);
+
+            for($i=0; $i< ($NN-$NROOTS-$PAD); $i++) {
+                
+                $feedback = $INDEX_OF[$data[$i] ^ $parity[0]];
+                if($feedback != $A0) {      
+                    // feedback term is non-zero
+            
+                    // This line is unnecessary when GENPOLY[NROOTS] is unity, as it must
+                    // always be for the polynomials constructed by init_rs()
+                    $feedback = $this->modnn($NN - $GENPOLY[$NROOTS] + $feedback);
+            
+                    for($j=1;$j<$NROOTS;$j++) {
+                        $parity[$j] ^= $ALPHA_TO[$this->modnn($feedback + $GENPOLY[$NROOTS-$j])];
+                    }
+                }
+                
+                // Shift 
+                array_shift($parity);
+                if($feedback != $A0) {
+                    array_push($parity, $ALPHA_TO[$this->modnn($feedback + $GENPOLY[0])]);
+                } else {
+                    array_push($parity, 0);
+                }
+            }
+        }
+    }
+    
+    //##########################################################################
+    
+    class QRrs {
+    
+        public static $items = array();
+        
+        //----------------------------------------------------------------------
+        public static function init_rs($symsize, $gfpoly, $fcr, $prim, $nroots, $pad)
+        {
+            foreach(self::$items as $rs) {
+                if($rs->pad != $pad)       continue;
+                if($rs->nroots != $nroots) continue;
+                if($rs->mm != $symsize)    continue;
+                if($rs->gfpoly != $gfpoly) continue;
+                if($rs->fcr != $fcr)       continue;
+                if($rs->prim != $prim)     continue;
+
+                return $rs;
+            }
+
+            $rs = QRrsItem::init_rs_char($symsize, $gfpoly, $fcr, $prim, $nroots, $pad);
+            array_unshift(self::$items, $rs);
+
+            return $rs;
+        }
+    }
+
+
+
+//---- qrmask.php -----------------------------
+
+
+
+
+/*
+ * PHP QR Code encoder
+ *
+ * Masking
+ *
+ * Based on libqrencode C library distributed under LGPL 2.1
+ * Copyright (C) 2006, 2007, 2008, 2009 Kentaro Fukuchi <fukuchi@megaui.net>
+ *
+ * PHP QR Code is distributed under LGPL 3
+ * Copyright (C) 2010 Dominik Dzienia <deltalab at poczta dot fm>
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 3 of the License, or any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+ 
+	define('N1', 3);
+	define('N2', 3);
+	define('N3', 40);
+	define('N4', 10);
+
+	class QRmask {
+	
+		public $runLength = array();
+		
+		//----------------------------------------------------------------------
+		public function __construct() 
+        {
+            $this->runLength = array_fill(0, QRSPEC_WIDTH_MAX + 1, 0);
+        }
+        
+        //----------------------------------------------------------------------
+        public function writeFormatInformation($width, &$frame, $mask, $level)
+        {
+            $blacks = 0;
+            $format =  QRspec::getFormatInfo($mask, $level);
+
+            for($i=0; $i<8; $i++) {
+                if($format & 1) {
+                    $blacks += 2;
+                    $v = 0x85;
+                } else {
+                    $v = 0x84;
+                }
+                
+                $frame[8][$width - 1 - $i] = chr($v);
+                if($i < 6) {
+                    $frame[$i][8] = chr($v);
+                } else {
+                    $frame[$i + 1][8] = chr($v);
+                }
+                $format = $format >> 1;
+            }
+            
+            for($i=0; $i<7; $i++) {
+                if($format & 1) {
+                    $blacks += 2;
+                    $v = 0x85;
+                } else {
+                    $v = 0x84;
+                }
+                
+                $frame[$width - 7 + $i][8] = chr($v);
+                if($i == 0) {
+                    $frame[8][7] = chr($v);
+                } else {
+                    $frame[8][6 - $i] = chr($v);
+                }
+                
+                $format = $format >> 1;
+            }
+
+            return $blacks;
+        }
+        
+        //----------------------------------------------------------------------
+        public function mask0($x, $y) { return ($x+$y)&1;                       }
+        public function mask1($x, $y) { return ($y&1);                          }
+        public function mask2($x, $y) { return ($x%3);                          }
+        public function mask3($x, $y) { return ($x+$y)%3;                       }
+        public function mask4($x, $y) { return (((int)($y/2))+((int)($x/3)))&1; }
+        public function mask5($x, $y) { return (($x*$y)&1)+($x*$y)%3;           }
+        public function mask6($x, $y) { return ((($x*$y)&1)+($x*$y)%3)&1;       }
+        public function mask7($x, $y) { return ((($x*$y)%3)+(($x+$y)&1))&1;     }
+        
+        //----------------------------------------------------------------------
+        private function generateMaskNo($maskNo, $width, $frame)
+        {
+            $bitMask = array_fill(0, $width, array_fill(0, $width, 0));
+            
+            for($y=0; $y<$width; $y++) {
+                for($x=0; $x<$width; $x++) {
+                    if(ord($frame[$y][$x]) & 0x80) {
+                        $bitMask[$y][$x] = 0;
+                    } else {
+                        $maskFunc = call_user_func(array($this, 'mask'.$maskNo), $x, $y);
+                        $bitMask[$y][$x] = ($maskFunc == 0)?1:0;
+                    }
+                    
+                }
+            }
+            
+            return $bitMask;
+        }
+        
+        //----------------------------------------------------------------------
+        public static function serial($bitFrame)
+        {
+            $codeArr = array();
+            
+            foreach ($bitFrame as $line)
+                $codeArr[] = join('', $line);
+                
+            return gzcompress(join("\n", $codeArr), 9);
+        }
+        
+        //----------------------------------------------------------------------
+        public static function unserial($code)
+        {
+            $codeArr = array();
+            
+            $codeLines = explode("\n", gzuncompress($code));
+            foreach ($codeLines as $line)
+                $codeArr[] = str_split($line);
+            
+            return $codeArr;
+        }
+        
+        //----------------------------------------------------------------------
+        public function makeMaskNo($maskNo, $width, $s, &$d, $maskGenOnly = false) 
+        {
+            $b = 0;
+            $bitMask = array();
+            
+            $fileName = QR_CACHE_DIR.'mask_'.$maskNo.DIRECTORY_SEPARATOR.'mask_'.$width.'_'.$maskNo.'.dat';
+
+            if (QR_CACHEABLE) {
+                if (file_exists($fileName)) {
+                    $bitMask = self::unserial(file_get_contents($fileName));
+                } else {
+                    $bitMask = $this->generateMaskNo($maskNo, $width, $s, $d);
+                    if (!file_exists(QR_CACHE_DIR.'mask_'.$maskNo))
+                        mkdir(QR_CACHE_DIR.'mask_'.$maskNo);
+                    file_put_contents($fileName, self::serial($bitMask));
+                }
+            } else {
+                $bitMask = $this->generateMaskNo($maskNo, $width, $s, $d);
+            }
+
+            if ($maskGenOnly)
+                return;
+                
+            $d = $s;
+
+            for($y=0; $y<$width; $y++) {
+                for($x=0; $x<$width; $x++) {
+                    if($bitMask[$y][$x] == 1) {
+                        $d[$y][$x] = chr(ord($s[$y][$x]) ^ (int)$bitMask[$y][$x]);
+                    }
+                    $b += (int)(ord($d[$y][$x]) & 1);
+                }
+            }
+
+            return $b;
+        }
+        
+        //----------------------------------------------------------------------
+        public function makeMask($width, $frame, $maskNo, $level)
+        {
+            $masked = array_fill(0, $width, str_repeat("\0", $width));
+            $this->makeMaskNo($maskNo, $width, $frame, $masked);
+            $this->writeFormatInformation($width, $masked, $maskNo, $level);
+       
+            return $masked;
+        }
+        
+        //----------------------------------------------------------------------
+        public function calcN1N3($length)
+        {
+            $demerit = 0;
+
+            for($i=0; $i<$length; $i++) {
+                
+                if($this->runLength[$i] >= 5) {
+                    $demerit += (N1 + ($this->runLength[$i] - 5));
+                }
+                if($i & 1) {
+                    if(($i >= 3) && ($i < ($length-2)) && ($this->runLength[$i] % 3 == 0)) {
+                        $fact = (int)($this->runLength[$i] / 3);
+                        if(($this->runLength[$i-2] == $fact) &&
+                           ($this->runLength[$i-1] == $fact) &&
+                           ($this->runLength[$i+1] == $fact) &&
+                           ($this->runLength[$i+2] == $fact)) {
+                            if(($this->runLength[$i-3] < 0) || ($this->runLength[$i-3] >= (4 * $fact))) {
+                                $demerit += N3;
+                            } else if((($i+3) >= $length) || ($this->runLength[$i+3] >= (4 * $fact))) {
+                                $demerit += N3;
+                            }
+                        }
+                    }
+                }
+            }
+            return $demerit;
+        }
+        
+        //----------------------------------------------------------------------
+        public function evaluateSymbol($width, $frame)
+        {
+            $head = 0;
+            $demerit = 0;
+
+            for($y=0; $y<$width; $y++) {
+                $head = 0;
+                $this->runLength[0] = 1;
+                
+                $frameY = $frame[$y];
+                
+                if ($y>0)
+                    $frameYM = $frame[$y-1];
+                
+                for($x=0; $x<$width; $x++) {
+                    if(($x > 0) && ($y > 0)) {
+                        $b22 = ord($frameY[$x]) & ord($frameY[$x-1]) & ord($frameYM[$x]) & ord($frameYM[$x-1]);
+                        $w22 = ord($frameY[$x]) | ord($frameY[$x-1]) | ord($frameYM[$x]) | ord($frameYM[$x-1]);
+                        
+                        if(($b22 | ($w22 ^ 1))&1) {                                                                     
+                            $demerit += N2;
+                        }
+                    }
+                    if(($x == 0) && (ord($frameY[$x]) & 1)) {
+                        $this->runLength[0] = -1;
+                        $head = 1;
+                        $this->runLength[$head] = 1;
+                    } else if($x > 0) {
+                        if((ord($frameY[$x]) ^ ord($frameY[$x-1])) & 1) {
+                            $head++;
+                            $this->runLength[$head] = 1;
+                        } else {
+                            $this->runLength[$head]++;
+                        }
+                    }
+                }
+    
+                $demerit += $this->calcN1N3($head+1);
+            }
+
+            for($x=0; $x<$width; $x++) {
+                $head = 0;
+                $this->runLength[0] = 1;
+                
+                for($y=0; $y<$width; $y++) {
+                    if($y == 0 && (ord($frame[$y][$x]) & 1)) {
+                        $this->runLength[0] = -1;
+                        $head = 1;
+                        $this->runLength[$head] = 1;
+                    } else if($y > 0) {
+                        if((ord($frame[$y][$x]) ^ ord($frame[$y-1][$x])) & 1) {
+                            $head++;
+                            $this->runLength[$head] = 1;
+                        } else {
+                            $this->runLength[$head]++;
+                        }
+                    }
+                }
+            
+                $demerit += $this->calcN1N3($head+1);
+            }
+
+            return $demerit;
+        }
+        
+        
+        //----------------------------------------------------------------------
+        public function mask($width, $frame, $level)
+        {
+            $minDemerit = PHP_INT_MAX;
+            $bestMaskNum = 0;
+            $bestMask = array();
+            
+            $checked_masks = array(0,1,2,3,4,5,6,7);
+            
+            if (QR_FIND_FROM_RANDOM !== false) {
+            
+                $howManuOut = 8-(QR_FIND_FROM_RANDOM % 9);
+                for ($i = 0; $i <  $howManuOut; $i++) {
+                    $remPos = rand (0, count($checked_masks)-1);
+                    unset($checked_masks[$remPos]);
+                    $checked_masks = array_values($checked_masks);
+                }
+            
+            }
+            
+            $bestMask = $frame;
+             
+            foreach($checked_masks as $i) {
+                $mask = array_fill(0, $width, str_repeat("\0", $width));
+
+                $demerit = 0;
+                $blacks = 0;
+                $blacks  = $this->makeMaskNo($i, $width, $frame, $mask);
+                $blacks += $this->writeFormatInformation($width, $mask, $i, $level);
+                $blacks  = (int)(100 * $blacks / ($width * $width));
+                $demerit = (int)((int)(abs($blacks - 50) / 5) * N4);
+                $demerit += $this->evaluateSymbol($width, $mask);
+                
+                if($demerit < $minDemerit) {
+                    $minDemerit = $demerit;
+                    $bestMask = $mask;
+                    $bestMaskNum = $i;
+                }
+            }
+            
+            return $bestMask;
+        }
+        
+        //----------------------------------------------------------------------
+    }
+
+
+
+
+//---- qrencode.php -----------------------------
+
+
+
+
+/*
+ * PHP QR Code encoder
+ *
+ * Main encoder classes.
+ *
+ * Based on libqrencode C library distributed under LGPL 2.1
+ * Copyright (C) 2006, 2007, 2008, 2009 Kentaro Fukuchi <fukuchi@megaui.net>
+ *
+ * PHP QR Code is distributed under LGPL 3
+ * Copyright (C) 2010 Dominik Dzienia <deltalab at poczta dot fm>
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 3 of the License, or any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+ 
+    class QRrsblock {
+        public $dataLength;
+        public $data = array();
+        public $eccLength;
+        public $ecc = array();
+        
+        public function __construct($dl, $data, $el, &$ecc, QRrsItem $rs)
+        {
+            $rs->encode_rs_char($data, $ecc);
+        
+            $this->dataLength = $dl;
+            $this->data = $data;
+            $this->eccLength = $el;
+            $this->ecc = $ecc;
+        }
+    };
+    
+    //##########################################################################
+
+    class QRrawcode {
+        public $version;
+        public $datacode = array();
+        public $ecccode = array();
+        public $blocks;
+        public $rsblocks = array(); //of RSblock
+        public $count;
+        public $dataLength;
+        public $eccLength;
+        public $b1;
+        
+        //----------------------------------------------------------------------
+        public function __construct(QRinput $input)
+        {
+            $spec = array(0,0,0,0,0);
+            
+            $this->datacode = $input->getByteStream();
+            if(is_null($this->datacode)) {
+                throw new Exception('null imput string');
+            }
+
+            QRspec::getEccSpec($input->getVersion(), $input->getErrorCorrectionLevel(), $spec);
+
+            $this->version = $input->getVersion();
+            $this->b1 = QRspec::rsBlockNum1($spec);
+            $this->dataLength = QRspec::rsDataLength($spec);
+            $this->eccLength = QRspec::rsEccLength($spec);
+            $this->ecccode = array_fill(0, $this->eccLength, 0);
+            $this->blocks = QRspec::rsBlockNum($spec);
+            
+            $ret = $this->init($spec);
+            if($ret < 0) {
+                throw new Exception('block alloc error');
+                return null;
+            }
+
+            $this->count = 0;
+        }
+        
+        //----------------------------------------------------------------------
+        public function init(array $spec)
+        {
+            $dl = QRspec::rsDataCodes1($spec);
+            $el = QRspec::rsEccCodes1($spec);
+            $rs = QRrs::init_rs(8, 0x11d, 0, 1, $el, 255 - $dl - $el);
+            
+
+            $blockNo = 0;
+            $dataPos = 0;
+            $eccPos = 0;
+            for($i=0; $i<QRspec::rsBlockNum1($spec); $i++) {
+                $ecc = array_slice($this->ecccode,$eccPos);
+                $this->rsblocks[$blockNo] = new QRrsblock($dl, array_slice($this->datacode, $dataPos), $el,  $ecc, $rs);
+                $this->ecccode = array_merge(array_slice($this->ecccode,0, $eccPos), $ecc);
+                
+                $dataPos += $dl;
+                $eccPos += $el;
+                $blockNo++;
+            }
+
+            if(QRspec::rsBlockNum2($spec) == 0)
+                return 0;
+
+            $dl = QRspec::rsDataCodes2($spec);
+            $el = QRspec::rsEccCodes2($spec);
+            $rs = QRrs::init_rs(8, 0x11d, 0, 1, $el, 255 - $dl - $el);
+            
+            if($rs == NULL) return -1;
+            
+            for($i=0; $i<QRspec::rsBlockNum2($spec); $i++) {
+                $ecc = array_slice($this->ecccode,$eccPos);
+                $this->rsblocks[$blockNo] = new QRrsblock($dl, array_slice($this->datacode, $dataPos), $el, $ecc, $rs);
+                $this->ecccode = array_merge(array_slice($this->ecccode,0, $eccPos), $ecc);
+                
+                $dataPos += $dl;
+                $eccPos += $el;
+                $blockNo++;
+            }
+
+            return 0;
+        }
+        
+        //----------------------------------------------------------------------
+        public function getCode()
+        {
+            $ret;
+
+            if($this->count < $this->dataLength) {
+                $row = $this->count % $this->blocks;
+                $col = $this->count / $this->blocks;
+                if($col >= $this->rsblocks[0]->dataLength) {
+                    $row += $this->b1;
+                }
+                $ret = $this->rsblocks[$row]->data[$col];
+            } else if($this->count < $this->dataLength + $this->eccLength) {
+                $row = ($this->count - $this->dataLength) % $this->blocks;
+                $col = ($this->count - $this->dataLength) / $this->blocks;
+                $ret = $this->rsblocks[$row]->ecc[$col];
+            } else {
+                return 0;
+            }
+            $this->count++;
+            
+            return $ret;
+        }
+    }
+
+    //##########################################################################
+    
+    class QRcode {
+    
+        public $version;
+        public $width;
+        public $data; 
+        
+        //----------------------------------------------------------------------
+        public function encodeMask(QRinput $input, $mask)
+        {
+            if($input->getVersion() < 0 || $input->getVersion() > QRSPEC_VERSION_MAX) {
+                throw new Exception('wrong version');
+            }
+            if($input->getErrorCorrectionLevel() > QR_ECLEVEL_H) {
+                throw new Exception('wrong level');
+            }
+
+            $raw = new QRrawcode($input);
+            
+            QRtools::markTime('after_raw');
+            
+            $version = $raw->version;
+            $width = QRspec::getWidth($version);
+            $frame = QRspec::newFrame($version);
+            
+            $filler = new FrameFiller($width, $frame);
+            if(is_null($filler)) {
+                return NULL;
+            }
+
+            // inteleaved data and ecc codes
+            for($i=0; $i<$raw->dataLength + $raw->eccLength; $i++) {
+                $code = $raw->getCode();
+                $bit = 0x80;
+                for($j=0; $j<8; $j++) {
+                    $addr = $filler->next();
+                    $filler->setFrameAt($addr, 0x02 | (($bit & $code) != 0));
+                    $bit = $bit >> 1;
+                }
+            }
+            
+            QRtools::markTime('after_filler');
+            
+            unset($raw);
+            
+            // remainder bits
+            $j = QRspec::getRemainder($version);
+            for($i=0; $i<$j; $i++) {
+                $addr = $filler->next();
+                $filler->setFrameAt($addr, 0x02);
+            }
+            
+            $frame = $filler->frame;
+            unset($filler);
+            
+            
+            // masking
+            $maskObj = new QRmask();
+            if($mask < 0) {
+            
+                if (QR_FIND_BEST_MASK) {
+                    $masked = $maskObj->mask($width, $frame, $input->getErrorCorrectionLevel());
+                } else {
+                    $masked = $maskObj->makeMask($width, $frame, (intval(QR_DEFAULT_MASK) % 8), $input->getErrorCorrectionLevel());
+                }
+            } else {
+                $masked = $maskObj->makeMask($width, $frame, $mask, $input->getErrorCorrectionLevel());
+            }
+            
+            if($masked == NULL) {
+                return NULL;
+            }
+            
+            QRtools::markTime('after_mask');
+            
+            $this->version = $version;
+            $this->width = $width;
+            $this->data = $masked;
+            
+            return $this;
+        }
+    
+        //----------------------------------------------------------------------
+        public function encodeInput(QRinput $input)
+        {
+            return $this->encodeMask($input, -1);
+        }
+        
+        //----------------------------------------------------------------------
+        public function encodeString8bit($string, $version, $level)
+        {
+            if(string == NULL) {
+                throw new Exception('empty string!');
+                return NULL;
+            }
+
+            $input = new QRinput($version, $level);
+            if($input == NULL) return NULL;
+
+            $ret = $input->append($input, QR_MODE_8, strlen($string), str_split($string));
+            if($ret < 0) {
+                unset($input);
+                return NULL;
+            }
+            return $this->encodeInput($input);
+        }
+
+        //----------------------------------------------------------------------
+        public function encodeString($string, $version, $level, $hint, $casesensitive)
+        {
+
+            if($hint != QR_MODE_8 && $hint != QR_MODE_KANJI) {
+                throw new Exception('bad hint');
+                return NULL;
+            }
+
+            $input = new QRinput($version, $level);
+            if($input == NULL) return NULL;
+
+            $ret = QRsplit::splitStringToQRinput($string, $input, $hint, $casesensitive);
+            if($ret < 0) {
+                return NULL;
+            }
+
+            return $this->encodeInput($input);
+        }
+        
+        //----------------------------------------------------------------------
+        public static function png($text, $outfile = false, $level = QR_ECLEVEL_L, $size = 3, $margin = 4, $saveandprint=false) 
+        {
+            $enc = QRencode::factory($level, $size, $margin);
+            return $enc->encodePNG($text, $outfile, $saveandprint=false);
+        }
+
+        //----------------------------------------------------------------------
+        public static function text($text, $outfile = false, $level = QR_ECLEVEL_L, $size = 3, $margin = 4) 
+        {
+            $enc = QRencode::factory($level, $size, $margin);
+            return $enc->encode($text, $outfile);
+        }
+
+        //----------------------------------------------------------------------
+        public static function raw($text, $outfile = false, $level = QR_ECLEVEL_L, $size = 3, $margin = 4) 
+        {
+            $enc = QRencode::factory($level, $size, $margin);
+            return $enc->encodeRAW($text, $outfile);
+        }
+    }
+    
+    //##########################################################################
+    
+    class FrameFiller {
+    
+        public $width;
+        public $frame;
+        public $x;
+        public $y;
+        public $dir;
+        public $bit;
+        
+        //----------------------------------------------------------------------
+        public function __construct($width, &$frame)
+        {
+            $this->width = $width;
+            $this->frame = $frame;
+            $this->x = $width - 1;
+            $this->y = $width - 1;
+            $this->dir = -1;
+            $this->bit = -1;
+        }
+        
+        //----------------------------------------------------------------------
+        public function setFrameAt($at, $val)
+        {
+            $this->frame[$at['y']][$at['x']] = chr($val);
+        }
+        
+        //----------------------------------------------------------------------
+        public function getFrameAt($at)
+        {
+            return ord($this->frame[$at['y']][$at['x']]);
+        }
+        
+        //----------------------------------------------------------------------
+        public function next()
+        {
+            do {
+            
+                if($this->bit == -1) {
+                    $this->bit = 0;
+                    return array('x'=>$this->x, 'y'=>$this->y);
+                }
+
+                $x = $this->x;
+                $y = $this->y;
+                $w = $this->width;
+
+                if($this->bit == 0) {
+                    $x--;
+                    $this->bit++;
+                } else {
+                    $x++;
+                    $y += $this->dir;
+                    $this->bit--;
+                }
+
+                if($this->dir < 0) {
+                    if($y < 0) {
+                        $y = 0;
+                        $x -= 2;
+                        $this->dir = 1;
+                        if($x == 6) {
+                            $x--;
+                            $y = 9;
+                        }
+                    }
+                } else {
+                    if($y == $w) {
+                        $y = $w - 1;
+                        $x -= 2;
+                        $this->dir = -1;
+                        if($x == 6) {
+                            $x--;
+                            $y -= 8;
+                        }
+                    }
+                }
+                if($x < 0 || $y < 0) return null;
+
+                $this->x = $x;
+                $this->y = $y;
+
+            } while(ord($this->frame[$y][$x]) & 0x80);
+                        
+            return array('x'=>$x, 'y'=>$y);
+        }
+        
+    } ;
+    
+    //##########################################################################    
+    
+    class QRencode {
+    
+        public $casesensitive = true;
+        public $eightbit = false;
+        
+        public $version = 0;
+        public $size = 3;
+        public $margin = 4;
+        
+        public $structured = 0; // not supported yet
+        
+        public $level = QR_ECLEVEL_L;
+        public $hint = QR_MODE_8;
+        
+        //----------------------------------------------------------------------
+        public static function factory($level = QR_ECLEVEL_L, $size = 3, $margin = 4)
+        {
+            $enc = new QRencode();
+            $enc->size = $size;
+            $enc->margin = $margin;
+            
+            switch ($level.'') {
+                case '0':
+                case '1':
+                case '2':
+                case '3':
+                        $enc->level = $level;
+                    break;
+                case 'l':
+                case 'L':
+                        $enc->level = QR_ECLEVEL_L;
+                    break;
+                case 'm':
+                case 'M':
+                        $enc->level = QR_ECLEVEL_M;
+                    break;
+                case 'q':
+                case 'Q':
+                        $enc->level = QR_ECLEVEL_Q;
+                    break;
+                case 'h':
+                case 'H':
+                        $enc->level = QR_ECLEVEL_H;
+                    break;
+            }
+            
+            return $enc;
+        }
+        
+        //----------------------------------------------------------------------
+        public function encodeRAW($intext, $outfile = false) 
+        {
+            $code = new QRcode();
+
+            if($this->eightbit) {
+                $code->encodeString8bit($intext, $this->version, $this->level);
+            } else {
+                $code->encodeString($intext, $this->version, $this->level, $this->hint, $this->casesensitive);
+            }
+            
+            return $code->data;
+        }
+
+        //----------------------------------------------------------------------
+        public function encode($intext, $outfile = false) 
+        {
+            $code = new QRcode();
+
+            if($this->eightbit) {
+                $code->encodeString8bit($intext, $this->version, $this->level);
+            } else {
+                $code->encodeString($intext, $this->version, $this->level, $this->hint, $this->casesensitive);
+            }
+            
+            QRtools::markTime('after_encode');
+            
+            if ($outfile!== false) {
+                file_put_contents($outfile, join("\n", QRtools::binarize($code->data)));
+            } else {
+                return QRtools::binarize($code->data);
+            }
+        }
+        
+        //----------------------------------------------------------------------
+        public function encodePNG($intext, $outfile = false,$saveandprint=false) 
+        {
+            try {
+            
+                ob_start();
+                $tab = $this->encode($intext);
+                $err = ob_get_contents();
+                ob_end_clean();
+                
+                if ($err != '')
+                    QRtools::log($outfile, $err);
+                
+                $maxSize = (int)(QR_PNG_MAXIMUM_SIZE / (count($tab)+2*$this->margin));
+                
+                QRimage::png($tab, $outfile, min(max(1, $this->size), $maxSize), $this->margin,$saveandprint);
+            
+            } catch (Exception $e) {
+            
+                QRtools::log($outfile, $e->getMessage());
+            
+            }
+        }
+    }
+
+
diff --git a/src/includes/phpqrcode/qr_18-10147_1765114124.png-errors.txt b/src/includes/phpqrcode/qr_18-10147_1765114124.png-errors.txt
new file mode 100644
index 0000000..5026e30
--- /dev/null
+++ b/src/includes/phpqrcode/qr_18-10147_1765114124.png-errors.txt
@@ -0,0 +1,242 @@
+2025-12-07 21:28:44: <br />
+<b>Deprecated</b>:  Implicit conversion from float 0.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>140</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 1.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>140</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 2.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>140</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 3.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>140</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 4.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>140</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 5.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>140</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 6.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>140</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 7.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>140</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 8.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>140</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 9.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>140</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 10.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>140</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 11.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>140</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 12.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>140</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 13.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>140</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 14.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>140</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 15.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>140</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 16.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>140</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 17.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>140</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 18.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>140</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 19.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>140</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 20.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>140</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 21.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>140</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 22.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>140</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 23.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>140</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 24.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>140</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 25.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>140</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 26.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>140</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 27.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>140</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 28.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>140</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 29.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>140</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 30.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>140</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 31.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>140</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 32.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>140</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 33.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>140</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 34.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>140</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 35.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>140</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 36.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>140</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 37.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>140</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 38.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>140</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 39.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>140</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 40.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>140</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 41.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>140</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 42.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>140</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 43.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>140</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 44.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>140</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 45.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>140</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 46.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>140</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 47.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>140</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 48.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>140</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 49.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>140</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 50.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>140</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 51.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>140</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 52.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>140</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 53.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>140</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 54.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>140</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 55.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>140</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 56.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>140</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 57.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>140</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 58.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>140</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 59.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>140</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 60.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>140</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 61.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>140</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 62.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>140</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 63.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>140</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 64.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>140</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 65.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>140</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 66.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>140</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 67.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>140</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 68.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>140</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 69.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>140</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 70.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>140</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 71.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>140</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 72.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>140</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 73.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>140</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 74.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>140</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 75.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>140</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 76.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>140</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 77.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>140</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 78.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>140</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 79.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>140</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 80.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>140</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 81.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>140</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 82.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>140</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 83.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>140</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 84.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>140</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 85.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>140</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 86.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>140</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 87.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>140</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 88.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>140</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 89.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>140</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 90.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>140</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 91.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>140</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 92.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>140</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 93.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>140</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 94.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>140</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 95.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>140</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 96.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>140</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 0.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>144</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 1.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>144</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 2.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>144</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 3.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>144</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 4.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>144</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 5.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>144</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 6.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>144</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 7.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>144</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 8.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>144</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 9.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>144</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 10.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>144</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 11.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>144</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 12.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>144</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 13.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>144</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 14.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>144</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 15.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>144</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 16.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>144</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 17.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>144</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 18.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>144</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 19.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>144</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 20.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>144</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 21.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>144</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 22.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>144</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 23.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>144</b><br />
diff --git a/src/includes/phpqrcode/qr_18-10147_1765114125.png-errors.txt b/src/includes/phpqrcode/qr_18-10147_1765114125.png-errors.txt
new file mode 100644
index 0000000..fa6939f
--- /dev/null
+++ b/src/includes/phpqrcode/qr_18-10147_1765114125.png-errors.txt
@@ -0,0 +1,242 @@
+2025-12-07 21:28:45: <br />
+<b>Deprecated</b>:  Implicit conversion from float 0.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>140</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 1.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>140</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 2.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>140</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 3.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>140</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 4.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>140</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 5.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>140</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 6.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>140</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 7.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>140</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 8.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>140</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 9.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>140</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 10.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>140</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 11.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>140</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 12.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>140</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 13.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>140</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 14.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>140</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 15.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>140</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 16.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>140</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 17.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>140</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 18.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>140</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 19.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>140</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 20.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>140</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 21.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>140</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 22.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>140</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 23.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>140</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 24.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>140</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 25.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>140</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 26.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>140</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 27.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>140</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 28.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>140</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 29.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>140</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 30.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>140</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 31.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>140</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 32.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>140</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 33.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>140</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 34.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>140</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 35.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>140</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 36.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>140</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 37.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>140</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 38.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>140</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 39.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>140</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 40.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>140</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 41.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>140</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 42.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>140</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 43.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>140</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 44.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>140</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 45.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>140</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 46.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>140</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 47.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>140</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 48.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>140</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 49.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>140</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 50.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>140</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 51.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>140</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 52.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>140</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 53.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>140</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 54.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>140</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 55.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>140</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 56.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>140</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 57.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>140</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 58.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>140</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 59.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>140</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 60.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>140</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 61.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>140</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 62.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>140</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 63.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>140</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 64.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>140</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 65.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>140</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 66.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>140</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 67.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>140</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 68.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>140</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 69.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>140</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 70.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>140</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 71.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>140</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 72.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>140</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 73.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>140</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 74.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>140</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 75.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>140</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 76.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>140</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 77.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>140</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 78.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>140</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 79.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>140</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 80.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>140</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 81.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>140</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 82.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>140</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 83.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>140</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 84.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>140</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 85.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>140</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 86.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>140</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 87.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>140</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 88.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>140</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 89.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>140</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 90.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>140</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 91.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>140</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 92.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>140</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 93.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>140</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 94.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>140</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 95.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>140</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 96.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>140</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 0.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>144</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 1.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>144</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 2.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>144</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 3.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>144</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 4.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>144</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 5.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>144</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 6.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>144</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 7.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>144</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 8.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>144</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 9.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>144</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 10.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>144</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 11.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>144</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 12.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>144</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 13.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>144</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 14.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>144</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 15.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>144</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 16.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>144</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 17.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>144</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 18.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>144</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 19.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>144</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 20.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>144</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 21.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>144</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 22.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>144</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 23.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>144</b><br />
diff --git a/src/includes/phpqrcode/qr_18-10147_1765114249.png-errors.txt b/src/includes/phpqrcode/qr_18-10147_1765114249.png-errors.txt
new file mode 100644
index 0000000..c6d092b
--- /dev/null
+++ b/src/includes/phpqrcode/qr_18-10147_1765114249.png-errors.txt
@@ -0,0 +1,242 @@
+2025-12-07 21:30:49: <br />
+<b>Deprecated</b>:  Implicit conversion from float 0.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>140</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 1.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>140</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 2.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>140</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 3.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>140</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 4.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>140</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 5.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>140</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 6.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>140</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 7.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>140</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 8.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>140</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 9.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>140</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 10.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>140</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 11.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>140</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 12.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>140</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 13.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>140</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 14.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>140</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 15.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>140</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 16.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>140</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 17.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>140</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 18.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>140</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 19.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>140</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 20.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>140</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 21.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>140</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 22.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>140</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 23.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>140</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 24.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>140</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 25.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>140</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 26.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>140</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 27.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>140</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 28.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>140</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 29.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>140</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 30.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>140</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 31.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>140</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 32.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>140</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 33.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>140</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 34.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>140</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 35.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>140</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 36.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>140</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 37.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>140</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 38.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>140</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 39.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>140</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 40.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>140</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 41.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>140</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 42.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>140</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 43.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>140</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 44.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>140</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 45.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>140</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 46.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>140</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 47.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>140</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 48.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>140</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 49.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>140</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 50.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>140</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 51.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>140</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 52.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>140</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 53.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>140</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 54.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>140</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 55.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>140</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 56.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>140</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 57.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>140</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 58.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>140</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 59.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>140</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 60.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>140</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 61.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>140</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 62.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>140</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 63.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>140</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 64.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>140</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 65.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>140</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 66.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>140</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 67.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>140</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 68.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>140</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 69.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>140</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 70.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>140</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 71.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>140</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 72.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>140</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 73.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>140</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 74.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>140</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 75.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>140</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 76.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>140</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 77.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>140</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 78.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>140</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 79.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>140</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 80.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>140</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 81.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>140</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 82.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>140</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 83.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>140</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 84.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>140</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 85.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>140</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 86.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>140</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 87.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>140</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 88.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>140</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 89.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>140</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 90.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>140</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 91.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>140</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 92.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>140</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 93.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>140</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 94.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>140</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 95.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>140</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 96.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>140</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 0.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>144</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 1.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>144</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 2.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>144</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 3.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>144</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 4.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>144</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 5.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>144</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 6.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>144</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 7.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>144</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 8.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>144</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 9.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>144</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 10.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>144</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 11.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>144</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 12.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>144</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 13.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>144</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 14.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>144</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 15.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>144</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 16.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>144</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 17.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>144</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 18.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>144</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 19.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>144</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 20.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>144</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 21.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>144</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 22.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>144</b><br />
+<br />
+<b>Deprecated</b>:  Implicit conversion from float 23.5 to int loses precision in <b>C:\xampp\htdocs\attendance_system\includes\phpqrcode\qrencode.php</b> on line <b>144</b><br />
diff --git a/src/includes/phpqrcode/qrbitstream.php b/src/includes/phpqrcode/qrbitstream.php
new file mode 100644
index 0000000..7d4ec4a
--- /dev/null
+++ b/src/includes/phpqrcode/qrbitstream.php
@@ -0,0 +1,180 @@
+<?php
+/*
+ * PHP QR Code encoder
+ *
+ * Bitstream class
+ *
+ * Based on libqrencode C library distributed under LGPL 2.1
+ * Copyright (C) 2006, 2007, 2008, 2009 Kentaro Fukuchi <fukuchi@megaui.net>
+ *
+ * PHP QR Code is distributed under LGPL 3
+ * Copyright (C) 2010 Dominik Dzienia <deltalab at poczta dot fm>
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 3 of the License, or any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+     
+    class QRbitstream {
+    
+        public $data = array();
+        
+        //----------------------------------------------------------------------
+        public function size()
+        {
+            return count($this->data);
+        }
+        
+        //----------------------------------------------------------------------
+        public function allocate($setLength)
+        {
+            $this->data = array_fill(0, $setLength, 0);
+            return 0;
+        }
+    
+        //----------------------------------------------------------------------
+        public static function newFromNum($bits, $num)
+        {
+            $bstream = new QRbitstream();
+            $bstream->allocate($bits);
+            
+            $mask = 1 << ($bits - 1);
+            for($i=0; $i<$bits; $i++) {
+                if($num & $mask) {
+                    $bstream->data[$i] = 1;
+                } else {
+                    $bstream->data[$i] = 0;
+                }
+                $mask = $mask >> 1;
+            }
+
+            return $bstream;
+        }
+        
+        //----------------------------------------------------------------------
+        public static function newFromBytes($size, $data)
+        {
+            $bstream = new QRbitstream();
+            $bstream->allocate($size * 8);
+            $p=0;
+
+            for($i=0; $i<$size; $i++) {
+                $mask = 0x80;
+                for($j=0; $j<8; $j++) {
+                    if($data[$i] & $mask) {
+                        $bstream->data[$p] = 1;
+                    } else {
+                        $bstream->data[$p] = 0;
+                    }
+                    $p++;
+                    $mask = $mask >> 1;
+                }
+            }
+
+            return $bstream;
+        }
+        
+        //----------------------------------------------------------------------
+        public function append(QRbitstream $arg)
+        {
+            if (is_null($arg)) {
+                return -1;
+            }
+            
+            if($arg->size() == 0) {
+                return 0;
+            }
+            
+            if($this->size() == 0) {
+                $this->data = $arg->data;
+                return 0;
+            }
+            
+            $this->data = array_values(array_merge($this->data, $arg->data));
+
+            return 0;
+        }
+        
+        //----------------------------------------------------------------------
+        public function appendNum($bits, $num)
+        {
+            if ($bits == 0) 
+                return 0;
+
+            $b = QRbitstream::newFromNum($bits, $num);
+            
+            if(is_null($b))
+                return -1;
+
+            $ret = $this->append($b);
+            unset($b);
+
+            return $ret;
+        }
+
+        //----------------------------------------------------------------------
+        public function appendBytes($size, $data)
+        {
+            if ($size == 0) 
+                return 0;
+
+            $b = QRbitstream::newFromBytes($size, $data);
+            
+            if(is_null($b))
+                return -1;
+
+            $ret = $this->append($b);
+            unset($b);
+
+            return $ret;
+        }
+        
+        //----------------------------------------------------------------------
+        public function toByte()
+        {
+        
+            $size = $this->size();
+
+            if($size == 0) {
+                return array();
+            }
+            
+            $data = array_fill(0, (int)(($size + 7) / 8), 0);
+            $bytes = (int)($size / 8);
+
+            $p = 0;
+            
+            for($i=0; $i<$bytes; $i++) {
+                $v = 0;
+                for($j=0; $j<8; $j++) {
+                    $v = $v << 1;
+                    $v |= $this->data[$p];
+                    $p++;
+                }
+                $data[$i] = $v;
+            }
+            
+            if($size & 7) {
+                $v = 0;
+                for($j=0; $j<($size & 7); $j++) {
+                    $v = $v << 1;
+                    $v |= $this->data[$p];
+                    $p++;
+                }
+                $data[$bytes] = $v;
+            }
+
+            return $data;
+        }
+
+    }
diff --git a/src/includes/phpqrcode/qrconfig.php b/src/includes/phpqrcode/qrconfig.php
new file mode 100644
index 0000000..e53dff8
--- /dev/null
+++ b/src/includes/phpqrcode/qrconfig.php
@@ -0,0 +1,17 @@
+<?php
+/*
+ * PHP QR Code encoder
+ *
+ * Config file, feel free to modify
+ */
+     
+    define('QR_CACHEABLE', true);                                                               // use cache - more disk reads but less CPU power, masks and format templates are stored there
+    define('QR_CACHE_DIR', dirname(__FILE__).DIRECTORY_SEPARATOR.'cache'.DIRECTORY_SEPARATOR);  // used when QR_CACHEABLE === true
+    define('QR_LOG_DIR', dirname(__FILE__).DIRECTORY_SEPARATOR);                                // default error logs dir   
+    
+    define('QR_FIND_BEST_MASK', true);                                                          // if true, estimates best mask (spec. default, but extremally slow; set to false to significant performance boost but (propably) worst quality code
+    define('QR_FIND_FROM_RANDOM', false);                                                       // if false, checks all masks available, otherwise value tells count of masks need to be checked, mask id are got randomly
+    define('QR_DEFAULT_MASK', 2);                                                               // when QR_FIND_BEST_MASK === false
+                                                  
+    define('QR_PNG_MAXIMUM_SIZE',  1024);                                                       // maximum allowed png image width (in pixels), tune to make sure GD and PHP can handle such big images
+                                                  
\ No newline at end of file
diff --git a/src/includes/phpqrcode/qrconst.php b/src/includes/phpqrcode/qrconst.php
new file mode 100644
index 0000000..9fac9fd
--- /dev/null
+++ b/src/includes/phpqrcode/qrconst.php
@@ -0,0 +1,54 @@
+<?php
+
+/*
+ * PHP QR Code encoder
+ *
+ * Common constants
+ *
+ * Based on libqrencode C library distributed under LGPL 2.1
+ * Copyright (C) 2006, 2007, 2008, 2009 Kentaro Fukuchi <fukuchi@megaui.net>
+ *
+ * PHP QR Code is distributed under LGPL 3
+ * Copyright (C) 2010 Dominik Dzienia <deltalab at poczta dot fm>
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 3 of the License, or any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+ 
+	// Encoding modes
+	 
+	define('QR_MODE_NUL', -1);
+	define('QR_MODE_NUM', 0);
+	define('QR_MODE_AN', 1);
+	define('QR_MODE_8', 2);
+	define('QR_MODE_KANJI', 3);
+	define('QR_MODE_STRUCTURE', 4);
+
+	// Levels of error correction.
+
+	define('QR_ECLEVEL_L', 0);
+	define('QR_ECLEVEL_M', 1);
+	define('QR_ECLEVEL_Q', 2);
+	define('QR_ECLEVEL_H', 3);
+	
+	// Supported output formats
+	
+	define('QR_FORMAT_TEXT', 0);
+	define('QR_FORMAT_PNG',  1);
+	
+	class qrstr {
+		public static function set(&$srctab, $x, $y, $repl, $replLen = false) {
+			$srctab[$y] = substr_replace($srctab[$y], ($replLen !== false)?substr($repl,0,$replLen):$repl, $x, ($replLen !== false)?$replLen:strlen($repl));
+		}
+	}	
\ No newline at end of file
diff --git a/src/includes/phpqrcode/qrencode.php b/src/includes/phpqrcode/qrencode.php
new file mode 100644
index 0000000..4b77a5b
--- /dev/null
+++ b/src/includes/phpqrcode/qrencode.php
@@ -0,0 +1,502 @@
+<?php
+/*
+ * PHP QR Code encoder
+ *
+ * Main encoder classes.
+ *
+ * Based on libqrencode C library distributed under LGPL 2.1
+ * Copyright (C) 2006, 2007, 2008, 2009 Kentaro Fukuchi <fukuchi@megaui.net>
+ *
+ * PHP QR Code is distributed under LGPL 3
+ * Copyright (C) 2010 Dominik Dzienia <deltalab at poczta dot fm>
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 3 of the License, or any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+ 
+    class QRrsblock {
+        public $dataLength;
+        public $data = array();
+        public $eccLength;
+        public $ecc = array();
+        
+        public function __construct($dl, $data, $el, &$ecc, QRrsItem $rs)
+        {
+            $rs->encode_rs_char($data, $ecc);
+        
+            $this->dataLength = $dl;
+            $this->data = $data;
+            $this->eccLength = $el;
+            $this->ecc = $ecc;
+        }
+    };
+    
+    //##########################################################################
+
+    class QRrawcode {
+        public $version;
+        public $datacode = array();
+        public $ecccode = array();
+        public $blocks;
+        public $rsblocks = array(); //of RSblock
+        public $count;
+        public $dataLength;
+        public $eccLength;
+        public $b1;
+        
+        //----------------------------------------------------------------------
+        public function __construct(QRinput $input)
+        {
+            $spec = array(0,0,0,0,0);
+            
+            $this->datacode = $input->getByteStream();
+            if(is_null($this->datacode)) {
+                throw new Exception('null imput string');
+            }
+
+            QRspec::getEccSpec($input->getVersion(), $input->getErrorCorrectionLevel(), $spec);
+
+            $this->version = $input->getVersion();
+            $this->b1 = QRspec::rsBlockNum1($spec);
+            $this->dataLength = QRspec::rsDataLength($spec);
+            $this->eccLength = QRspec::rsEccLength($spec);
+            $this->ecccode = array_fill(0, $this->eccLength, 0);
+            $this->blocks = QRspec::rsBlockNum($spec);
+            
+            $ret = $this->init($spec);
+            if($ret < 0) {
+                throw new Exception('block alloc error');
+                return null;
+            }
+
+            $this->count = 0;
+        }
+        
+        //----------------------------------------------------------------------
+        public function init(array $spec)
+        {
+            $dl = QRspec::rsDataCodes1($spec);
+            $el = QRspec::rsEccCodes1($spec);
+            $rs = QRrs::init_rs(8, 0x11d, 0, 1, $el, 255 - $dl - $el);
+            
+
+            $blockNo = 0;
+            $dataPos = 0;
+            $eccPos = 0;
+            for($i=0; $i<QRspec::rsBlockNum1($spec); $i++) {
+                $ecc = array_slice($this->ecccode,$eccPos);
+                $this->rsblocks[$blockNo] = new QRrsblock($dl, array_slice($this->datacode, $dataPos), $el,  $ecc, $rs);
+                $this->ecccode = array_merge(array_slice($this->ecccode,0, $eccPos), $ecc);
+                
+                $dataPos += $dl;
+                $eccPos += $el;
+                $blockNo++;
+            }
+
+            if(QRspec::rsBlockNum2($spec) == 0)
+                return 0;
+
+            $dl = QRspec::rsDataCodes2($spec);
+            $el = QRspec::rsEccCodes2($spec);
+            $rs = QRrs::init_rs(8, 0x11d, 0, 1, $el, 255 - $dl - $el);
+            
+            if($rs == NULL) return -1;
+            
+            for($i=0; $i<QRspec::rsBlockNum2($spec); $i++) {
+                $ecc = array_slice($this->ecccode,$eccPos);
+                $this->rsblocks[$blockNo] = new QRrsblock($dl, array_slice($this->datacode, $dataPos), $el, $ecc, $rs);
+                $this->ecccode = array_merge(array_slice($this->ecccode,0, $eccPos), $ecc);
+                
+                $dataPos += $dl;
+                $eccPos += $el;
+                $blockNo++;
+            }
+
+            return 0;
+        }
+        
+        //----------------------------------------------------------------------
+        public function getCode()
+        {
+            $ret;
+
+            if($this->count < $this->dataLength) {
+                $row = $this->count % $this->blocks;
+                $col = $this->count / $this->blocks;
+                if($col >= $this->rsblocks[0]->dataLength) {
+                    $row += $this->b1;
+                }
+                $ret = $this->rsblocks[$row]->data[$col];
+            } else if($this->count < $this->dataLength + $this->eccLength) {
+                $row = ($this->count - $this->dataLength) % $this->blocks;
+                $col = ($this->count - $this->dataLength) / $this->blocks;
+                $ret = $this->rsblocks[$row]->ecc[$col];
+            } else {
+                return 0;
+            }
+            $this->count++;
+            
+            return $ret;
+        }
+    }
+
+    //##########################################################################
+    
+    class QRcode {
+    
+        public $version;
+        public $width;
+        public $data; 
+        
+        //----------------------------------------------------------------------
+        public function encodeMask(QRinput $input, $mask)
+        {
+            if($input->getVersion() < 0 || $input->getVersion() > QRSPEC_VERSION_MAX) {
+                throw new Exception('wrong version');
+            }
+            if($input->getErrorCorrectionLevel() > QR_ECLEVEL_H) {
+                throw new Exception('wrong level');
+            }
+
+            $raw = new QRrawcode($input);
+            
+            QRtools::markTime('after_raw');
+            
+            $version = $raw->version;
+            $width = QRspec::getWidth($version);
+            $frame = QRspec::newFrame($version);
+            
+            $filler = new FrameFiller($width, $frame);
+            if(is_null($filler)) {
+                return NULL;
+            }
+
+            // inteleaved data and ecc codes
+            for($i=0; $i<$raw->dataLength + $raw->eccLength; $i++) {
+                $code = $raw->getCode();
+                $bit = 0x80;
+                for($j=0; $j<8; $j++) {
+                    $addr = $filler->next();
+                    $filler->setFrameAt($addr, 0x02 | (($bit & $code) != 0));
+                    $bit = $bit >> 1;
+                }
+            }
+            
+            QRtools::markTime('after_filler');
+            
+            unset($raw);
+            
+            // remainder bits
+            $j = QRspec::getRemainder($version);
+            for($i=0; $i<$j; $i++) {
+                $addr = $filler->next();
+                $filler->setFrameAt($addr, 0x02);
+            }
+            
+            $frame = $filler->frame;
+            unset($filler);
+            
+            
+            // masking
+            $maskObj = new QRmask();
+            if($mask < 0) {
+            
+                if (QR_FIND_BEST_MASK) {
+                    $masked = $maskObj->mask($width, $frame, $input->getErrorCorrectionLevel());
+                } else {
+                    $masked = $maskObj->makeMask($width, $frame, (intval(QR_DEFAULT_MASK) % 8), $input->getErrorCorrectionLevel());
+                }
+            } else {
+                $masked = $maskObj->makeMask($width, $frame, $mask, $input->getErrorCorrectionLevel());
+            }
+            
+            if($masked == NULL) {
+                return NULL;
+            }
+            
+            QRtools::markTime('after_mask');
+            
+            $this->version = $version;
+            $this->width = $width;
+            $this->data = $masked;
+            
+            return $this;
+        }
+    
+        //----------------------------------------------------------------------
+        public function encodeInput(QRinput $input)
+        {
+            return $this->encodeMask($input, -1);
+        }
+        
+        //----------------------------------------------------------------------
+        public function encodeString8bit($string, $version, $level)
+        {
+            if(string == NULL) {
+                throw new Exception('empty string!');
+                return NULL;
+            }
+
+            $input = new QRinput($version, $level);
+            if($input == NULL) return NULL;
+
+            $ret = $input->append($input, QR_MODE_8, strlen($string), str_split($string));
+            if($ret < 0) {
+                unset($input);
+                return NULL;
+            }
+            return $this->encodeInput($input);
+        }
+
+        //----------------------------------------------------------------------
+        public function encodeString($string, $version, $level, $hint, $casesensitive)
+        {
+
+            if($hint != QR_MODE_8 && $hint != QR_MODE_KANJI) {
+                throw new Exception('bad hint');
+                return NULL;
+            }
+
+            $input = new QRinput($version, $level);
+            if($input == NULL) return NULL;
+
+            $ret = QRsplit::splitStringToQRinput($string, $input, $hint, $casesensitive);
+            if($ret < 0) {
+                return NULL;
+            }
+
+            return $this->encodeInput($input);
+        }
+        
+        //----------------------------------------------------------------------
+        public static function png($text, $outfile = false, $level = QR_ECLEVEL_L, $size = 3, $margin = 4, $saveandprint=false) 
+        {
+            $enc = QRencode::factory($level, $size, $margin);
+            return $enc->encodePNG($text, $outfile, $saveandprint=false);
+        }
+
+        //----------------------------------------------------------------------
+        public static function text($text, $outfile = false, $level = QR_ECLEVEL_L, $size = 3, $margin = 4) 
+        {
+            $enc = QRencode::factory($level, $size, $margin);
+            return $enc->encode($text, $outfile);
+        }
+
+        //----------------------------------------------------------------------
+        public static function raw($text, $outfile = false, $level = QR_ECLEVEL_L, $size = 3, $margin = 4) 
+        {
+            $enc = QRencode::factory($level, $size, $margin);
+            return $enc->encodeRAW($text, $outfile);
+        }
+    }
+    
+    //##########################################################################
+    
+    class FrameFiller {
+    
+        public $width;
+        public $frame;
+        public $x;
+        public $y;
+        public $dir;
+        public $bit;
+        
+        //----------------------------------------------------------------------
+        public function __construct($width, &$frame)
+        {
+            $this->width = $width;
+            $this->frame = $frame;
+            $this->x = $width - 1;
+            $this->y = $width - 1;
+            $this->dir = -1;
+            $this->bit = -1;
+        }
+        
+        //----------------------------------------------------------------------
+        public function setFrameAt($at, $val)
+        {
+            $this->frame[$at['y']][$at['x']] = chr($val);
+        }
+        
+        //----------------------------------------------------------------------
+        public function getFrameAt($at)
+        {
+            return ord($this->frame[$at['y']][$at['x']]);
+        }
+        
+        //----------------------------------------------------------------------
+        public function next()
+        {
+            do {
+            
+                if($this->bit == -1) {
+                    $this->bit = 0;
+                    return array('x'=>$this->x, 'y'=>$this->y);
+                }
+
+                $x = $this->x;
+                $y = $this->y;
+                $w = $this->width;
+
+                if($this->bit == 0) {
+                    $x--;
+                    $this->bit++;
+                } else {
+                    $x++;
+                    $y += $this->dir;
+                    $this->bit--;
+                }
+
+                if($this->dir < 0) {
+                    if($y < 0) {
+                        $y = 0;
+                        $x -= 2;
+                        $this->dir = 1;
+                        if($x == 6) {
+                            $x--;
+                            $y = 9;
+                        }
+                    }
+                } else {
+                    if($y == $w) {
+                        $y = $w - 1;
+                        $x -= 2;
+                        $this->dir = -1;
+                        if($x == 6) {
+                            $x--;
+                            $y -= 8;
+                        }
+                    }
+                }
+                if($x < 0 || $y < 0) return null;
+
+                $this->x = $x;
+                $this->y = $y;
+
+            } while(ord($this->frame[$y][$x]) & 0x80);
+                        
+            return array('x'=>$x, 'y'=>$y);
+        }
+        
+    } ;
+    
+    //##########################################################################    
+    
+    class QRencode {
+    
+        public $casesensitive = true;
+        public $eightbit = false;
+        
+        public $version = 0;
+        public $size = 3;
+        public $margin = 4;
+        
+        public $structured = 0; // not supported yet
+        
+        public $level = QR_ECLEVEL_L;
+        public $hint = QR_MODE_8;
+        
+        //----------------------------------------------------------------------
+        public static function factory($level = QR_ECLEVEL_L, $size = 3, $margin = 4)
+        {
+            $enc = new QRencode();
+            $enc->size = $size;
+            $enc->margin = $margin;
+            
+            switch ($level.'') {
+                case '0':
+                case '1':
+                case '2':
+                case '3':
+                        $enc->level = $level;
+                    break;
+                case 'l':
+                case 'L':
+                        $enc->level = QR_ECLEVEL_L;
+                    break;
+                case 'm':
+                case 'M':
+                        $enc->level = QR_ECLEVEL_M;
+                    break;
+                case 'q':
+                case 'Q':
+                        $enc->level = QR_ECLEVEL_Q;
+                    break;
+                case 'h':
+                case 'H':
+                        $enc->level = QR_ECLEVEL_H;
+                    break;
+            }
+            
+            return $enc;
+        }
+        
+        //----------------------------------------------------------------------
+        public function encodeRAW($intext, $outfile = false) 
+        {
+            $code = new QRcode();
+
+            if($this->eightbit) {
+                $code->encodeString8bit($intext, $this->version, $this->level);
+            } else {
+                $code->encodeString($intext, $this->version, $this->level, $this->hint, $this->casesensitive);
+            }
+            
+            return $code->data;
+        }
+
+        //----------------------------------------------------------------------
+        public function encode($intext, $outfile = false) 
+        {
+            $code = new QRcode();
+
+            if($this->eightbit) {
+                $code->encodeString8bit($intext, $this->version, $this->level);
+            } else {
+                $code->encodeString($intext, $this->version, $this->level, $this->hint, $this->casesensitive);
+            }
+            
+            QRtools::markTime('after_encode');
+            
+            if ($outfile!== false) {
+                file_put_contents($outfile, join("\n", QRtools::binarize($code->data)));
+            } else {
+                return QRtools::binarize($code->data);
+            }
+        }
+        
+        //----------------------------------------------------------------------
+        public function encodePNG($intext, $outfile = false,$saveandprint=false) 
+        {
+            try {
+            
+                ob_start();
+                $tab = $this->encode($intext);
+                $err = ob_get_contents();
+                ob_end_clean();
+                
+                if ($err != '')
+                    QRtools::log($outfile, $err);
+                
+                $maxSize = (int)(QR_PNG_MAXIMUM_SIZE / (count($tab)+2*$this->margin));
+                
+                QRimage::png($tab, $outfile, min(max(1, $this->size), $maxSize), $this->margin,$saveandprint);
+            
+            } catch (Exception $e) {
+            
+                QRtools::log($outfile, $e->getMessage());
+            
+            }
+        }
+    }
diff --git a/src/includes/phpqrcode/qrimage.php b/src/includes/phpqrcode/qrimage.php
new file mode 100644
index 0000000..10b0a6e
--- /dev/null
+++ b/src/includes/phpqrcode/qrimage.php
@@ -0,0 +1,95 @@
+<?php
+/*
+ * PHP QR Code encoder
+ *
+ * Image output of code using GD2
+ *
+ * PHP QR Code is distributed under LGPL 3
+ * Copyright (C) 2010 Dominik Dzienia <deltalab at poczta dot fm>
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 3 of the License, or any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+ 
+    define('QR_IMAGE', true);
+
+    class QRimage {
+    
+        //----------------------------------------------------------------------
+        public static function png($frame, $filename = false, $pixelPerPoint = 4, $outerFrame = 4,$saveandprint=FALSE) 
+        {
+            $image = self::image($frame, $pixelPerPoint, $outerFrame);
+            
+            if ($filename === false) {
+                Header("Content-type: image/png");
+                ImagePng($image);
+            } else {
+                if($saveandprint===TRUE){
+                    ImagePng($image, $filename);
+                    header("Content-type: image/png");
+                    ImagePng($image);
+                }else{
+                    ImagePng($image, $filename);
+                }
+            }
+            
+            ImageDestroy($image);
+        }
+    
+        //----------------------------------------------------------------------
+        public static function jpg($frame, $filename = false, $pixelPerPoint = 8, $outerFrame = 4, $q = 85) 
+        {
+            $image = self::image($frame, $pixelPerPoint, $outerFrame);
+            
+            if ($filename === false) {
+                Header("Content-type: image/jpeg");
+                ImageJpeg($image, null, $q);
+            } else {
+                ImageJpeg($image, $filename, $q);            
+            }
+            
+            ImageDestroy($image);
+        }
+    
+        //----------------------------------------------------------------------
+        private static function image($frame, $pixelPerPoint = 4, $outerFrame = 4) 
+        {
+            $h = count($frame);
+            $w = strlen($frame[0]);
+            
+            $imgW = $w + 2*$outerFrame;
+            $imgH = $h + 2*$outerFrame;
+            
+            $base_image =ImageCreate($imgW, $imgH);
+            
+            $col[0] = ImageColorAllocate($base_image,255,255,255);
+            $col[1] = ImageColorAllocate($base_image,0,0,0);
+
+            imagefill($base_image, 0, 0, $col[0]);
+
+            for($y=0; $y<$h; $y++) {
+                for($x=0; $x<$w; $x++) {
+                    if ($frame[$y][$x] == '1') {
+                        ImageSetPixel($base_image,$x+$outerFrame,$y+$outerFrame,$col[1]); 
+                    }
+                }
+            }
+            
+            $target_image =ImageCreate($imgW * $pixelPerPoint, $imgH * $pixelPerPoint);
+            ImageCopyResized($target_image, $base_image, 0, 0, 0, 0, $imgW * $pixelPerPoint, $imgH * $pixelPerPoint, $imgW, $imgH);
+            ImageDestroy($base_image);
+            
+            return $target_image;
+        }
+    }
\ No newline at end of file
diff --git a/src/includes/phpqrcode/qrinput.php b/src/includes/phpqrcode/qrinput.php
new file mode 100644
index 0000000..0f6d7f9
--- /dev/null
+++ b/src/includes/phpqrcode/qrinput.php
@@ -0,0 +1,729 @@
+<?php
+/*
+ * PHP QR Code encoder
+ *
+ * Input encoding class
+ *
+ * Based on libqrencode C library distributed under LGPL 2.1
+ * Copyright (C) 2006, 2007, 2008, 2009 Kentaro Fukuchi <fukuchi@megaui.net>
+ *
+ * PHP QR Code is distributed under LGPL 3
+ * Copyright (C) 2010 Dominik Dzienia <deltalab at poczta dot fm>
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 3 of the License, or any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+ 
+    define('STRUCTURE_HEADER_BITS',  20);
+    define('MAX_STRUCTURED_SYMBOLS', 16);
+
+    class QRinputItem {
+    
+        public $mode;
+        public $size;
+        public $data;
+        public $bstream;
+
+        public function __construct($mode, $size, $data, $bstream = null) 
+        {
+            $setData = array_slice($data, 0, $size);
+            
+            if (count($setData) < $size) {
+                $setData = array_merge($setData, array_fill(0,$size-count($setData),0));
+            }
+        
+            if(!QRinput::check($mode, $size, $setData)) {
+                throw new Exception('Error m:'.$mode.',s:'.$size.',d:'.join(',',$setData));
+                return null;
+            }
+            
+            $this->mode = $mode;
+            $this->size = $size;
+            $this->data = $setData;
+            $this->bstream = $bstream;
+        }
+        
+        //----------------------------------------------------------------------
+        public function encodeModeNum($version)
+        {
+            try {
+            
+                $words = (int)($this->size / 3);
+                $bs = new QRbitstream();
+                
+                $val = 0x1;
+                $bs->appendNum(4, $val);
+                $bs->appendNum(QRspec::lengthIndicator(QR_MODE_NUM, $version), $this->size);
+
+                for($i=0; $i<$words; $i++) {
+                    $val  = (ord($this->data[$i*3  ]) - ord('0')) * 100;
+                    $val += (ord($this->data[$i*3+1]) - ord('0')) * 10;
+                    $val += (ord($this->data[$i*3+2]) - ord('0'));
+                    $bs->appendNum(10, $val);
+                }
+
+                if($this->size - $words * 3 == 1) {
+                    $val = ord($this->data[$words*3]) - ord('0');
+                    $bs->appendNum(4, $val);
+                } else if($this->size - $words * 3 == 2) {
+                    $val  = (ord($this->data[$words*3  ]) - ord('0')) * 10;
+                    $val += (ord($this->data[$words*3+1]) - ord('0'));
+                    $bs->appendNum(7, $val);
+                }
+
+                $this->bstream = $bs;
+                return 0;
+                
+            } catch (Exception $e) {
+                return -1;
+            }
+        }
+        
+        //----------------------------------------------------------------------
+        public function encodeModeAn($version)
+        {
+            try {
+                $words = (int)($this->size / 2);
+                $bs = new QRbitstream();
+                
+                $bs->appendNum(4, 0x02);
+                $bs->appendNum(QRspec::lengthIndicator(QR_MODE_AN, $version), $this->size);
+
+                for($i=0; $i<$words; $i++) {
+                    $val  = (int)QRinput::lookAnTable(ord($this->data[$i*2  ])) * 45;
+                    $val += (int)QRinput::lookAnTable(ord($this->data[$i*2+1]));
+
+                    $bs->appendNum(11, $val);
+                }
+
+                if($this->size & 1) {
+                    $val = QRinput::lookAnTable(ord($this->data[$words * 2]));
+                    $bs->appendNum(6, $val);
+                }
+        
+                $this->bstream = $bs;
+                return 0;
+            
+            } catch (Exception $e) {
+                return -1;
+            }
+        }
+        
+        //----------------------------------------------------------------------
+        public function encodeMode8($version)
+        {
+            try {
+                $bs = new QRbitstream();
+
+                $bs->appendNum(4, 0x4);
+                $bs->appendNum(QRspec::lengthIndicator(QR_MODE_8, $version), $this->size);
+
+                for($i=0; $i<$this->size; $i++) {
+                    $bs->appendNum(8, ord($this->data[$i]));
+                }
+
+                $this->bstream = $bs;
+                return 0;
+            
+            } catch (Exception $e) {
+                return -1;
+            }
+        }
+        
+        //----------------------------------------------------------------------
+        public function encodeModeKanji($version)
+        {
+            try {
+
+                $bs = new QRbitrtream();
+                
+                $bs->appendNum(4, 0x8);
+                $bs->appendNum(QRspec::lengthIndicator(QR_MODE_KANJI, $version), (int)($this->size / 2));
+
+                for($i=0; $i<$this->size; $i+=2) {
+                    $val = (ord($this->data[$i]) << 8) | ord($this->data[$i+1]);
+                    if($val <= 0x9ffc) {
+                        $val -= 0x8140;
+                    } else {
+                        $val -= 0xc140;
+                    }
+                    
+                    $h = ($val >> 8) * 0xc0;
+                    $val = ($val & 0xff) + $h;
+
+                    $bs->appendNum(13, $val);
+                }
+
+                $this->bstream = $bs;
+                return 0;
+            
+            } catch (Exception $e) {
+                return -1;
+            }
+        }
+
+        //----------------------------------------------------------------------
+        public function encodeModeStructure()
+        {
+            try {
+                $bs =  new QRbitstream();
+                
+                $bs->appendNum(4, 0x03);
+                $bs->appendNum(4, ord($this->data[1]) - 1);
+                $bs->appendNum(4, ord($this->data[0]) - 1);
+                $bs->appendNum(8, ord($this->data[2]));
+
+                $this->bstream = $bs;
+                return 0;
+            
+            } catch (Exception $e) {
+                return -1;
+            }
+        }
+        
+        //----------------------------------------------------------------------
+        public function estimateBitStreamSizeOfEntry($version)
+        {
+            $bits = 0;
+
+            if($version == 0) 
+                $version = 1;
+
+            switch($this->mode) {
+                case QR_MODE_NUM:        $bits = QRinput::estimateBitsModeNum($this->size);    break;
+                case QR_MODE_AN:        $bits = QRinput::estimateBitsModeAn($this->size);    break;
+                case QR_MODE_8:            $bits = QRinput::estimateBitsMode8($this->size);    break;
+                case QR_MODE_KANJI:        $bits = QRinput::estimateBitsModeKanji($this->size);break;
+                case QR_MODE_STRUCTURE:    return STRUCTURE_HEADER_BITS;            
+                default:
+                    return 0;
+            }
+
+            $l = QRspec::lengthIndicator($this->mode, $version);
+            $m = 1 << $l;
+            $num = (int)(($this->size + $m - 1) / $m);
+
+            $bits += $num * (4 + $l);
+
+            return $bits;
+        }
+        
+        //----------------------------------------------------------------------
+        public function encodeBitStream($version)
+        {
+            try {
+            
+                unset($this->bstream);
+                $words = QRspec::maximumWords($this->mode, $version);
+                
+                if($this->size > $words) {
+                
+                    $st1 = new QRinputItem($this->mode, $words, $this->data);
+                    $st2 = new QRinputItem($this->mode, $this->size - $words, array_slice($this->data, $words));
+
+                    $st1->encodeBitStream($version);
+                    $st2->encodeBitStream($version);
+                    
+                    $this->bstream = new QRbitstream();
+                    $this->bstream->append($st1->bstream);
+                    $this->bstream->append($st2->bstream);
+                    
+                    unset($st1);
+                    unset($st2);
+                    
+                } else {
+                    
+                    $ret = 0;
+                    
+                    switch($this->mode) {
+                        case QR_MODE_NUM:        $ret = $this->encodeModeNum($version);    break;
+                        case QR_MODE_AN:        $ret = $this->encodeModeAn($version);    break;
+                        case QR_MODE_8:            $ret = $this->encodeMode8($version);    break;
+                        case QR_MODE_KANJI:        $ret = $this->encodeModeKanji($version);break;
+                        case QR_MODE_STRUCTURE:    $ret = $this->encodeModeStructure();    break;
+                        
+                        default:
+                            break;
+                    }
+                    
+                    if($ret < 0)
+                        return -1;
+                }
+
+                return $this->bstream->size();
+            
+            } catch (Exception $e) {
+                return -1;
+            }
+        }
+    };
+    
+    //##########################################################################
+
+    class QRinput {
+
+        public $items;
+        
+        private $version;
+        private $level;
+        
+        //----------------------------------------------------------------------
+        public function __construct($version = 0, $level = QR_ECLEVEL_L)
+        {
+            if ($version < 0 || $version > QRSPEC_VERSION_MAX || $level > QR_ECLEVEL_H) {
+                throw new Exception('Invalid version no');
+                return NULL;
+            }
+            
+            $this->version = $version;
+            $this->level = $level;
+        }
+        
+        //----------------------------------------------------------------------
+        public function getVersion()
+        {
+            return $this->version;
+        }
+        
+        //----------------------------------------------------------------------
+        public function setVersion($version)
+        {
+            if($version < 0 || $version > QRSPEC_VERSION_MAX) {
+                throw new Exception('Invalid version no');
+                return -1;
+            }
+
+            $this->version = $version;
+
+            return 0;
+        }
+        
+        //----------------------------------------------------------------------
+        public function getErrorCorrectionLevel()
+        {
+            return $this->level;
+        }
+
+        //----------------------------------------------------------------------
+        public function setErrorCorrectionLevel($level)
+        {
+            if($level > QR_ECLEVEL_H) {
+                throw new Exception('Invalid ECLEVEL');
+                return -1;
+            }
+
+            $this->level = $level;
+
+            return 0;
+        }
+        
+        //----------------------------------------------------------------------
+        public function appendEntry(QRinputItem $entry)
+        {
+            $this->items[] = $entry;
+        }
+        
+        //----------------------------------------------------------------------
+        public function append($mode, $size, $data)
+        {
+            try {
+                $entry = new QRinputItem($mode, $size, $data);
+                $this->items[] = $entry;
+                return 0;
+            } catch (Exception $e) {
+                return -1;
+            }
+        }
+        
+        //----------------------------------------------------------------------
+        
+        public function insertStructuredAppendHeader($size, $index, $parity)
+        {
+            if( $size > MAX_STRUCTURED_SYMBOLS ) {
+                throw new Exception('insertStructuredAppendHeader wrong size');
+            }
+            
+            if( $index <= 0 || $index > MAX_STRUCTURED_SYMBOLS ) {
+                throw new Exception('insertStructuredAppendHeader wrong index');
+            }
+
+            $buf = array($size, $index, $parity);
+            
+            try {
+                $entry = new QRinputItem(QR_MODE_STRUCTURE, 3, buf);
+                array_unshift($this->items, $entry);
+                return 0;
+            } catch (Exception $e) {
+                return -1;
+            }
+        }
+
+        //----------------------------------------------------------------------
+        public function calcParity()
+        {
+            $parity = 0;
+            
+            foreach($this->items as $item) {
+                if($item->mode != QR_MODE_STRUCTURE) {
+                    for($i=$item->size-1; $i>=0; $i--) {
+                        $parity ^= $item->data[$i];
+                    }
+                }
+            }
+
+            return $parity;
+        }
+        
+        //----------------------------------------------------------------------
+        public static function checkModeNum($size, $data)
+        {
+            for($i=0; $i<$size; $i++) {
+                if((ord($data[$i]) < ord('0')) || (ord($data[$i]) > ord('9'))){
+                    return false;
+                }
+            }
+
+            return true;
+        }
+
+        //----------------------------------------------------------------------
+        public static function estimateBitsModeNum($size)
+        {
+            $w = (int)$size / 3;
+            $bits = $w * 10;
+            
+            switch($size - $w * 3) {
+                case 1:
+                    $bits += 4;
+                    break;
+                case 2:
+                    $bits += 7;
+                    break;
+                default:
+                    break;
+            }
+
+            return $bits;
+        }
+        
+        //----------------------------------------------------------------------
+        public static $anTable = array(
+            -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
+            -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
+            36, -1, -1, -1, 37, 38, -1, -1, -1, -1, 39, 40, -1, 41, 42, 43,
+             0,  1,  2,  3,  4,  5,  6,  7,  8,  9, 44, -1, -1, -1, -1, -1,
+            -1, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24,
+            25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, -1, -1, -1, -1, -1,
+            -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
+            -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1
+        );
+        
+        //----------------------------------------------------------------------
+        public static function lookAnTable($c)
+        {
+            return (($c > 127)?-1:self::$anTable[$c]);
+        }
+        
+        //----------------------------------------------------------------------
+        public static function checkModeAn($size, $data)
+        {
+            for($i=0; $i<$size; $i++) {
+                if (self::lookAnTable(ord($data[$i])) == -1) {
+                    return false;
+                }
+            }
+
+            return true;
+        }
+        
+        //----------------------------------------------------------------------
+        public static function estimateBitsModeAn($size)
+        {
+            $w = (int)($size / 2);
+            $bits = $w * 11;
+            
+            if($size & 1) {
+                $bits += 6;
+            }
+
+            return $bits;
+        }
+    
+        //----------------------------------------------------------------------
+        public static function estimateBitsMode8($size)
+        {
+            return $size * 8;
+        }
+        
+        //----------------------------------------------------------------------
+        public function estimateBitsModeKanji($size)
+        {
+            return (int)(($size / 2) * 13);
+        }
+        
+        //----------------------------------------------------------------------
+        public static function checkModeKanji($size, $data)
+        {
+            if($size & 1)
+                return false;
+
+            for($i=0; $i<$size; $i+=2) {
+                $val = (ord($data[$i]) << 8) | ord($data[$i+1]);
+                if( $val < 0x8140 
+                || ($val > 0x9ffc && $val < 0xe040) 
+                || $val > 0xebbf) {
+                    return false;
+                }
+            }
+
+            return true;
+        }
+
+        /***********************************************************************
+         * Validation
+         **********************************************************************/
+
+        public static function check($mode, $size, $data)
+        {
+            if($size <= 0) 
+                return false;
+
+            switch($mode) {
+                case QR_MODE_NUM:       return self::checkModeNum($size, $data);   break;
+                case QR_MODE_AN:        return self::checkModeAn($size, $data);    break;
+                case QR_MODE_KANJI:     return self::checkModeKanji($size, $data); break;
+                case QR_MODE_8:         return true; break;
+                case QR_MODE_STRUCTURE: return true; break;
+                
+                default:
+                    break;
+            }
+
+            return false;
+        }
+        
+        
+        //----------------------------------------------------------------------
+        public function estimateBitStreamSize($version)
+        {
+            $bits = 0;
+
+            foreach($this->items as $item) {
+                $bits += $item->estimateBitStreamSizeOfEntry($version);
+            }
+
+            return $bits;
+        }
+        
+        //----------------------------------------------------------------------
+        public function estimateVersion()
+        {
+            $version = 0;
+            $prev = 0;
+            do {
+                $prev = $version;
+                $bits = $this->estimateBitStreamSize($prev);
+                $version = QRspec::getMinimumVersion((int)(($bits + 7) / 8), $this->level);
+                if ($version < 0) {
+                    return -1;
+                }
+            } while ($version > $prev);
+
+            return $version;
+        }
+        
+        //----------------------------------------------------------------------
+        public static function lengthOfCode($mode, $version, $bits)
+        {
+            $payload = $bits - 4 - QRspec::lengthIndicator($mode, $version);
+            switch($mode) {
+                case QR_MODE_NUM:
+                    $chunks = (int)($payload / 10);
+                    $remain = $payload - $chunks * 10;
+                    $size = $chunks * 3;
+                    if($remain >= 7) {
+                        $size += 2;
+                    } else if($remain >= 4) {
+                        $size += 1;
+                    }
+                    break;
+                case QR_MODE_AN:
+                    $chunks = (int)($payload / 11);
+                    $remain = $payload - $chunks * 11;
+                    $size = $chunks * 2;
+                    if($remain >= 6) 
+                        $size++;
+                    break;
+                case QR_MODE_8:
+                    $size = (int)($payload / 8);
+                    break;
+                case QR_MODE_KANJI:
+                    $size = (int)(($payload / 13) * 2);
+                    break;
+                case QR_MODE_STRUCTURE:
+                    $size = (int)($payload / 8);
+                    break;
+                default:
+                    $size = 0;
+                    break;
+            }
+            
+            $maxsize = QRspec::maximumWords($mode, $version);
+            if($size < 0) $size = 0;
+            if($size > $maxsize) $size = $maxsize;
+
+            return $size;
+        }
+        
+        //----------------------------------------------------------------------
+        public function createBitStream()
+        {
+            $total = 0;
+
+            foreach($this->items as $item) {
+                $bits = $item->encodeBitStream($this->version);
+                
+                if($bits < 0) 
+                    return -1;
+                    
+                $total += $bits;
+            }
+
+            return $total;
+        }
+        
+        //----------------------------------------------------------------------
+        public function convertData()
+        {
+            $ver = $this->estimateVersion();
+            if($ver > $this->getVersion()) {
+                $this->setVersion($ver);
+            }
+
+            for(;;) {
+                $bits = $this->createBitStream();
+                
+                if($bits < 0) 
+                    return -1;
+                    
+                $ver = QRspec::getMinimumVersion((int)(($bits + 7) / 8), $this->level);
+                if($ver < 0) {
+                    throw new Exception('WRONG VERSION');
+                    return -1;
+                } else if($ver > $this->getVersion()) {
+                    $this->setVersion($ver);
+                } else {
+                    break;
+                }
+            }
+
+            return 0;
+        }
+        
+        //----------------------------------------------------------------------
+        public function appendPaddingBit(&$bstream)
+        {
+            $bits = $bstream->size();
+            $maxwords = QRspec::getDataLength($this->version, $this->level);
+            $maxbits = $maxwords * 8;
+
+            if ($maxbits == $bits) {
+                return 0;
+            }
+
+            if ($maxbits - $bits < 5) {
+                return $bstream->appendNum($maxbits - $bits, 0);
+            }
+
+            $bits += 4;
+            $words = (int)(($bits + 7) / 8);
+
+            $padding = new QRbitstream();
+            $ret = $padding->appendNum($words * 8 - $bits + 4, 0);
+            
+            if($ret < 0) 
+                return $ret;
+
+            $padlen = $maxwords - $words;
+            
+            if($padlen > 0) {
+                
+                $padbuf = array();
+                for($i=0; $i<$padlen; $i++) {
+                    $padbuf[$i] = ($i&1)?0x11:0xec;
+                }
+                
+                $ret = $padding->appendBytes($padlen, $padbuf);
+                
+                if($ret < 0)
+                    return $ret;
+                
+            }
+
+            $ret = $bstream->append($padding);
+            
+            return $ret;
+        }
+
+        //----------------------------------------------------------------------
+        public function mergeBitStream()
+        {
+            if($this->convertData() < 0) {
+                return null;
+            }
+
+            $bstream = new QRbitstream();
+            
+            foreach($this->items as $item) {
+                $ret = $bstream->append($item->bstream);
+                if($ret < 0) {
+                    return null;
+                }
+            }
+
+            return $bstream;
+        }
+
+        //----------------------------------------------------------------------
+        public function getBitStream()
+        {
+
+            $bstream = $this->mergeBitStream();
+            
+            if($bstream == null) {
+                return null;
+            }
+            
+            $ret = $this->appendPaddingBit($bstream);
+            if($ret < 0) {
+                return null;
+            }
+
+            return $bstream;
+        }
+        
+        //----------------------------------------------------------------------
+        public function getByteStream()
+        {
+            $bstream = $this->getBitStream();
+            if($bstream == null) {
+                return null;
+            }
+            
+            return $bstream->toByte();
+        }
+    }
+        
+        
+    
\ No newline at end of file
diff --git a/src/includes/phpqrcode/qrlib.php b/src/includes/phpqrcode/qrlib.php
new file mode 100644
index 0000000..d55c4af
--- /dev/null
+++ b/src/includes/phpqrcode/qrlib.php
@@ -0,0 +1,43 @@
+<?php
+/*
+ * PHP QR Code encoder
+ *
+ * Root library file, prepares environment and includes dependencies
+ *
+ * Based on libqrencode C library distributed under LGPL 2.1
+ * Copyright (C) 2006, 2007, 2008, 2009 Kentaro Fukuchi <fukuchi@megaui.net>
+ *
+ * PHP QR Code is distributed under LGPL 3
+ * Copyright (C) 2010 Dominik Dzienia <deltalab at poczta dot fm>
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 3 of the License, or any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+	
+	$QR_BASEDIR = dirname(__FILE__).DIRECTORY_SEPARATOR;
+	
+	// Required libs
+	
+	include $QR_BASEDIR."qrconst.php";
+	include $QR_BASEDIR."qrconfig.php";
+	include $QR_BASEDIR."qrtools.php";
+	include $QR_BASEDIR."qrspec.php";
+	include $QR_BASEDIR."qrimage.php";
+	include $QR_BASEDIR."qrinput.php";
+	include $QR_BASEDIR."qrbitstream.php";
+	include $QR_BASEDIR."qrsplit.php";
+	include $QR_BASEDIR."qrrscode.php";
+	include $QR_BASEDIR."qrmask.php";
+	include $QR_BASEDIR."qrencode.php";
+
diff --git a/src/includes/phpqrcode/qrmask.php b/src/includes/phpqrcode/qrmask.php
new file mode 100644
index 0000000..b14d7ae
--- /dev/null
+++ b/src/includes/phpqrcode/qrmask.php
@@ -0,0 +1,328 @@
+<?php
+/*
+ * PHP QR Code encoder
+ *
+ * Masking
+ *
+ * Based on libqrencode C library distributed under LGPL 2.1
+ * Copyright (C) 2006, 2007, 2008, 2009 Kentaro Fukuchi <fukuchi@megaui.net>
+ *
+ * PHP QR Code is distributed under LGPL 3
+ * Copyright (C) 2010 Dominik Dzienia <deltalab at poczta dot fm>
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 3 of the License, or any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+ 
+	define('N1', 3);
+	define('N2', 3);
+	define('N3', 40);
+	define('N4', 10);
+
+	class QRmask {
+	
+		public $runLength = array();
+		
+		//----------------------------------------------------------------------
+		public function __construct() 
+        {
+            $this->runLength = array_fill(0, QRSPEC_WIDTH_MAX + 1, 0);
+        }
+        
+        //----------------------------------------------------------------------
+        public function writeFormatInformation($width, &$frame, $mask, $level)
+        {
+            $blacks = 0;
+            $format =  QRspec::getFormatInfo($mask, $level);
+
+            for($i=0; $i<8; $i++) {
+                if($format & 1) {
+                    $blacks += 2;
+                    $v = 0x85;
+                } else {
+                    $v = 0x84;
+                }
+                
+                $frame[8][$width - 1 - $i] = chr($v);
+                if($i < 6) {
+                    $frame[$i][8] = chr($v);
+                } else {
+                    $frame[$i + 1][8] = chr($v);
+                }
+                $format = $format >> 1;
+            }
+            
+            for($i=0; $i<7; $i++) {
+                if($format & 1) {
+                    $blacks += 2;
+                    $v = 0x85;
+                } else {
+                    $v = 0x84;
+                }
+                
+                $frame[$width - 7 + $i][8] = chr($v);
+                if($i == 0) {
+                    $frame[8][7] = chr($v);
+                } else {
+                    $frame[8][6 - $i] = chr($v);
+                }
+                
+                $format = $format >> 1;
+            }
+
+            return $blacks;
+        }
+        
+        //----------------------------------------------------------------------
+        public function mask0($x, $y) { return ($x+$y)&1;                       }
+        public function mask1($x, $y) { return ($y&1);                          }
+        public function mask2($x, $y) { return ($x%3);                          }
+        public function mask3($x, $y) { return ($x+$y)%3;                       }
+        public function mask4($x, $y) { return (((int)($y/2))+((int)($x/3)))&1; }
+        public function mask5($x, $y) { return (($x*$y)&1)+($x*$y)%3;           }
+        public function mask6($x, $y) { return ((($x*$y)&1)+($x*$y)%3)&1;       }
+        public function mask7($x, $y) { return ((($x*$y)%3)+(($x+$y)&1))&1;     }
+        
+        //----------------------------------------------------------------------
+        private function generateMaskNo($maskNo, $width, $frame)
+        {
+            $bitMask = array_fill(0, $width, array_fill(0, $width, 0));
+            
+            for($y=0; $y<$width; $y++) {
+                for($x=0; $x<$width; $x++) {
+                    if(ord($frame[$y][$x]) & 0x80) {
+                        $bitMask[$y][$x] = 0;
+                    } else {
+                        $maskFunc = call_user_func(array($this, 'mask'.$maskNo), $x, $y);
+                        $bitMask[$y][$x] = ($maskFunc == 0)?1:0;
+                    }
+                    
+                }
+            }
+            
+            return $bitMask;
+        }
+        
+        //----------------------------------------------------------------------
+        public static function serial($bitFrame)
+        {
+            $codeArr = array();
+            
+            foreach ($bitFrame as $line)
+                $codeArr[] = join('', $line);
+                
+            return gzcompress(join("\n", $codeArr), 9);
+        }
+        
+        //----------------------------------------------------------------------
+        public static function unserial($code)
+        {
+            $codeArr = array();
+            
+            $codeLines = explode("\n", gzuncompress($code));
+            foreach ($codeLines as $line)
+                $codeArr[] = str_split($line);
+            
+            return $codeArr;
+        }
+        
+        //----------------------------------------------------------------------
+        public function makeMaskNo($maskNo, $width, $s, &$d, $maskGenOnly = false) 
+        {
+            $b = 0;
+            $bitMask = array();
+            
+            $fileName = QR_CACHE_DIR.'mask_'.$maskNo.DIRECTORY_SEPARATOR.'mask_'.$width.'_'.$maskNo.'.dat';
+
+            if (QR_CACHEABLE) {
+                if (file_exists($fileName)) {
+                    $bitMask = self::unserial(file_get_contents($fileName));
+                } else {
+                    $bitMask = $this->generateMaskNo($maskNo, $width, $s, $d);
+                    if (!file_exists(QR_CACHE_DIR.'mask_'.$maskNo))
+                        mkdir(QR_CACHE_DIR.'mask_'.$maskNo);
+                    file_put_contents($fileName, self::serial($bitMask));
+                }
+            } else {
+                $bitMask = $this->generateMaskNo($maskNo, $width, $s, $d);
+            }
+
+            if ($maskGenOnly)
+                return;
+                
+            $d = $s;
+
+            for($y=0; $y<$width; $y++) {
+                for($x=0; $x<$width; $x++) {
+                    if($bitMask[$y][$x] == 1) {
+                        $d[$y][$x] = chr(ord($s[$y][$x]) ^ (int)$bitMask[$y][$x]);
+                    }
+                    $b += (int)(ord($d[$y][$x]) & 1);
+                }
+            }
+
+            return $b;
+        }
+        
+        //----------------------------------------------------------------------
+        public function makeMask($width, $frame, $maskNo, $level)
+        {
+            $masked = array_fill(0, $width, str_repeat("\0", $width));
+            $this->makeMaskNo($maskNo, $width, $frame, $masked);
+            $this->writeFormatInformation($width, $masked, $maskNo, $level);
+       
+            return $masked;
+        }
+        
+        //----------------------------------------------------------------------
+        public function calcN1N3($length)
+        {
+            $demerit = 0;
+
+            for($i=0; $i<$length; $i++) {
+                
+                if($this->runLength[$i] >= 5) {
+                    $demerit += (N1 + ($this->runLength[$i] - 5));
+                }
+                if($i & 1) {
+                    if(($i >= 3) && ($i < ($length-2)) && ($this->runLength[$i] % 3 == 0)) {
+                        $fact = (int)($this->runLength[$i] / 3);
+                        if(($this->runLength[$i-2] == $fact) &&
+                           ($this->runLength[$i-1] == $fact) &&
+                           ($this->runLength[$i+1] == $fact) &&
+                           ($this->runLength[$i+2] == $fact)) {
+                            if(($this->runLength[$i-3] < 0) || ($this->runLength[$i-3] >= (4 * $fact))) {
+                                $demerit += N3;
+                            } else if((($i+3) >= $length) || ($this->runLength[$i+3] >= (4 * $fact))) {
+                                $demerit += N3;
+                            }
+                        }
+                    }
+                }
+            }
+            return $demerit;
+        }
+        
+        //----------------------------------------------------------------------
+        public function evaluateSymbol($width, $frame)
+        {
+            $head = 0;
+            $demerit = 0;
+
+            for($y=0; $y<$width; $y++) {
+                $head = 0;
+                $this->runLength[0] = 1;
+                
+                $frameY = $frame[$y];
+                
+                if ($y>0)
+                    $frameYM = $frame[$y-1];
+                
+                for($x=0; $x<$width; $x++) {
+                    if(($x > 0) && ($y > 0)) {
+                        $b22 = ord($frameY[$x]) & ord($frameY[$x-1]) & ord($frameYM[$x]) & ord($frameYM[$x-1]);
+                        $w22 = ord($frameY[$x]) | ord($frameY[$x-1]) | ord($frameYM[$x]) | ord($frameYM[$x-1]);
+                        
+                        if(($b22 | ($w22 ^ 1))&1) {                                                                     
+                            $demerit += N2;
+                        }
+                    }
+                    if(($x == 0) && (ord($frameY[$x]) & 1)) {
+                        $this->runLength[0] = -1;
+                        $head = 1;
+                        $this->runLength[$head] = 1;
+                    } else if($x > 0) {
+                        if((ord($frameY[$x]) ^ ord($frameY[$x-1])) & 1) {
+                            $head++;
+                            $this->runLength[$head] = 1;
+                        } else {
+                            $this->runLength[$head]++;
+                        }
+                    }
+                }
+    
+                $demerit += $this->calcN1N3($head+1);
+            }
+
+            for($x=0; $x<$width; $x++) {
+                $head = 0;
+                $this->runLength[0] = 1;
+                
+                for($y=0; $y<$width; $y++) {
+                    if($y == 0 && (ord($frame[$y][$x]) & 1)) {
+                        $this->runLength[0] = -1;
+                        $head = 1;
+                        $this->runLength[$head] = 1;
+                    } else if($y > 0) {
+                        if((ord($frame[$y][$x]) ^ ord($frame[$y-1][$x])) & 1) {
+                            $head++;
+                            $this->runLength[$head] = 1;
+                        } else {
+                            $this->runLength[$head]++;
+                        }
+                    }
+                }
+            
+                $demerit += $this->calcN1N3($head+1);
+            }
+
+            return $demerit;
+        }
+        
+        
+        //----------------------------------------------------------------------
+        public function mask($width, $frame, $level)
+        {
+            $minDemerit = PHP_INT_MAX;
+            $bestMaskNum = 0;
+            $bestMask = array();
+            
+            $checked_masks = array(0,1,2,3,4,5,6,7);
+            
+            if (QR_FIND_FROM_RANDOM !== false) {
+            
+                $howManuOut = 8-(QR_FIND_FROM_RANDOM % 9);
+                for ($i = 0; $i <  $howManuOut; $i++) {
+                    $remPos = rand (0, count($checked_masks)-1);
+                    unset($checked_masks[$remPos]);
+                    $checked_masks = array_values($checked_masks);
+                }
+            
+            }
+            
+            $bestMask = $frame;
+             
+            foreach($checked_masks as $i) {
+                $mask = array_fill(0, $width, str_repeat("\0", $width));
+
+                $demerit = 0;
+                $blacks = 0;
+                $blacks  = $this->makeMaskNo($i, $width, $frame, $mask);
+                $blacks += $this->writeFormatInformation($width, $mask, $i, $level);
+                $blacks  = (int)(100 * $blacks / ($width * $width));
+                $demerit = (int)((int)(abs($blacks - 50) / 5) * N4);
+                $demerit += $this->evaluateSymbol($width, $mask);
+                
+                if($demerit < $minDemerit) {
+                    $minDemerit = $demerit;
+                    $bestMask = $mask;
+                    $bestMaskNum = $i;
+                }
+            }
+            
+            return $bestMask;
+        }
+        
+        //----------------------------------------------------------------------
+    }
diff --git a/src/includes/phpqrcode/qrrscode.php b/src/includes/phpqrcode/qrrscode.php
new file mode 100644
index 0000000..591129a
--- /dev/null
+++ b/src/includes/phpqrcode/qrrscode.php
@@ -0,0 +1,210 @@
+<?php
+/*
+ * PHP QR Code encoder
+ *
+ * Reed-Solomon error correction support
+ * 
+ * Copyright (C) 2002, 2003, 2004, 2006 Phil Karn, KA9Q
+ * (libfec is released under the GNU Lesser General Public License.)
+ *
+ * Based on libqrencode C library distributed under LGPL 2.1
+ * Copyright (C) 2006, 2007, 2008, 2009 Kentaro Fukuchi <fukuchi@megaui.net>
+ *
+ * PHP QR Code is distributed under LGPL 3
+ * Copyright (C) 2010 Dominik Dzienia <deltalab at poczta dot fm>
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 3 of the License, or any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+ 
+    class QRrsItem {
+    
+        public $mm;                  // Bits per symbol 
+        public $nn;                  // Symbols per block (= (1<<mm)-1) 
+        public $alpha_to = array();  // log lookup table 
+        public $index_of = array();  // Antilog lookup table 
+        public $genpoly = array();   // Generator polynomial 
+        public $nroots;              // Number of generator roots = number of parity symbols 
+        public $fcr;                 // First consecutive root, index form 
+        public $prim;                // Primitive element, index form 
+        public $iprim;               // prim-th root of 1, index form 
+        public $pad;                 // Padding bytes in shortened block 
+        public $gfpoly;
+    
+        //----------------------------------------------------------------------
+        public function modnn($x)
+        {
+            while ($x >= $this->nn) {
+                $x -= $this->nn;
+                $x = ($x >> $this->mm) + ($x & $this->nn);
+            }
+            
+            return $x;
+        }
+        
+        //----------------------------------------------------------------------
+        public static function init_rs_char($symsize, $gfpoly, $fcr, $prim, $nroots, $pad)
+        {
+            // Common code for intializing a Reed-Solomon control block (char or int symbols)
+            // Copyright 2004 Phil Karn, KA9Q
+            // May be used under the terms of the GNU Lesser General Public License (LGPL)
+
+            $rs = null;
+            
+            // Check parameter ranges
+            if($symsize < 0 || $symsize > 8)                     return $rs;
+            if($fcr < 0 || $fcr >= (1<<$symsize))                return $rs;
+            if($prim <= 0 || $prim >= (1<<$symsize))             return $rs;
+            if($nroots < 0 || $nroots >= (1<<$symsize))          return $rs; // Can't have more roots than symbol values!
+            if($pad < 0 || $pad >= ((1<<$symsize) -1 - $nroots)) return $rs; // Too much padding
+
+            $rs = new QRrsItem();
+            $rs->mm = $symsize;
+            $rs->nn = (1<<$symsize)-1;
+            $rs->pad = $pad;
+
+            $rs->alpha_to = array_fill(0, $rs->nn+1, 0);
+            $rs->index_of = array_fill(0, $rs->nn+1, 0);
+          
+            // PHP style macro replacement ;)
+            $NN =& $rs->nn;
+            $A0 =& $NN;
+            
+            // Generate Galois field lookup tables
+            $rs->index_of[0] = $A0; // log(zero) = -inf
+            $rs->alpha_to[$A0] = 0; // alpha**-inf = 0
+            $sr = 1;
+          
+            for($i=0; $i<$rs->nn; $i++) {
+                $rs->index_of[$sr] = $i;
+                $rs->alpha_to[$i] = $sr;
+                $sr <<= 1;
+                if($sr & (1<<$symsize)) {
+                    $sr ^= $gfpoly;
+                }
+                $sr &= $rs->nn;
+            }
+            
+            if($sr != 1){
+                // field generator polynomial is not primitive!
+                $rs = NULL;
+                return $rs;
+            }
+
+            /* Form RS code generator polynomial from its roots */
+            $rs->genpoly = array_fill(0, $nroots+1, 0);
+        
+            $rs->fcr = $fcr;
+            $rs->prim = $prim;
+            $rs->nroots = $nroots;
+            $rs->gfpoly = $gfpoly;
+
+            /* Find prim-th root of 1, used in decoding */
+            for($iprim=1;($iprim % $prim) != 0;$iprim += $rs->nn)
+            ; // intentional empty-body loop!
+            
+            $rs->iprim = (int)($iprim / $prim);
+            $rs->genpoly[0] = 1;
+            
+            for ($i = 0,$root=$fcr*$prim; $i < $nroots; $i++, $root += $prim) {
+                $rs->genpoly[$i+1] = 1;
+
+                // Multiply rs->genpoly[] by  @**(root + x)
+                for ($j = $i; $j > 0; $j--) {
+                    if ($rs->genpoly[$j] != 0) {
+                        $rs->genpoly[$j] = $rs->genpoly[$j-1] ^ $rs->alpha_to[$rs->modnn($rs->index_of[$rs->genpoly[$j]] + $root)];
+                    } else {
+                        $rs->genpoly[$j] = $rs->genpoly[$j-1];
+                    }
+                }
+                // rs->genpoly[0] can never be zero
+                $rs->genpoly[0] = $rs->alpha_to[$rs->modnn($rs->index_of[$rs->genpoly[0]] + $root)];
+            }
+            
+            // convert rs->genpoly[] to index form for quicker encoding
+            for ($i = 0; $i <= $nroots; $i++)
+                $rs->genpoly[$i] = $rs->index_of[$rs->genpoly[$i]];
+
+            return $rs;
+        }
+        
+        //----------------------------------------------------------------------
+        public function encode_rs_char($data, &$parity)
+        {
+            $MM       =& $this->mm;
+            $NN       =& $this->nn;
+            $ALPHA_TO =& $this->alpha_to;
+            $INDEX_OF =& $this->index_of;
+            $GENPOLY  =& $this->genpoly;
+            $NROOTS   =& $this->nroots;
+            $FCR      =& $this->fcr;
+            $PRIM     =& $this->prim;
+            $IPRIM    =& $this->iprim;
+            $PAD      =& $this->pad;
+            $A0       =& $NN;
+
+            $parity = array_fill(0, $NROOTS, 0);
+
+            for($i=0; $i< ($NN-$NROOTS-$PAD); $i++) {
+                
+                $feedback = $INDEX_OF[$data[$i] ^ $parity[0]];
+                if($feedback != $A0) {      
+                    // feedback term is non-zero
+            
+                    // This line is unnecessary when GENPOLY[NROOTS] is unity, as it must
+                    // always be for the polynomials constructed by init_rs()
+                    $feedback = $this->modnn($NN - $GENPOLY[$NROOTS] + $feedback);
+            
+                    for($j=1;$j<$NROOTS;$j++) {
+                        $parity[$j] ^= $ALPHA_TO[$this->modnn($feedback + $GENPOLY[$NROOTS-$j])];
+                    }
+                }
+                
+                // Shift 
+                array_shift($parity);
+                if($feedback != $A0) {
+                    array_push($parity, $ALPHA_TO[$this->modnn($feedback + $GENPOLY[0])]);
+                } else {
+                    array_push($parity, 0);
+                }
+            }
+        }
+    }
+    
+    //##########################################################################
+    
+    class QRrs {
+    
+        public static $items = array();
+        
+        //----------------------------------------------------------------------
+        public static function init_rs($symsize, $gfpoly, $fcr, $prim, $nroots, $pad)
+        {
+            foreach(self::$items as $rs) {
+                if($rs->pad != $pad)       continue;
+                if($rs->nroots != $nroots) continue;
+                if($rs->mm != $symsize)    continue;
+                if($rs->gfpoly != $gfpoly) continue;
+                if($rs->fcr != $fcr)       continue;
+                if($rs->prim != $prim)     continue;
+
+                return $rs;
+            }
+
+            $rs = QRrsItem::init_rs_char($symsize, $gfpoly, $fcr, $prim, $nroots, $pad);
+            array_unshift(self::$items, $rs);
+
+            return $rs;
+        }
+    }
\ No newline at end of file
diff --git a/src/includes/phpqrcode/qrspec.php b/src/includes/phpqrcode/qrspec.php
new file mode 100644
index 0000000..92aea0c
--- /dev/null
+++ b/src/includes/phpqrcode/qrspec.php
@@ -0,0 +1,592 @@
+<?php
+/*
+ * PHP QR Code encoder
+ *
+ * QR Code specifications
+ *
+ * Based on libqrencode C library distributed under LGPL 2.1
+ * Copyright (C) 2006, 2007, 2008, 2009 Kentaro Fukuchi <fukuchi@megaui.net>
+ *
+ * PHP QR Code is distributed under LGPL 3
+ * Copyright (C) 2010 Dominik Dzienia <deltalab at poczta dot fm>
+ *
+ * The following data / specifications are taken from
+ * "Two dimensional symbol -- QR-code -- Basic Specification" (JIS X0510:2004)
+ *  or
+ * "Automatic identification and data capture techniques -- 
+ *  QR Code 2005 bar code symbology specification" (ISO/IEC 18004:2006)
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 3 of the License, or any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+ 
+    define('QRSPEC_VERSION_MAX', 40);
+    define('QRSPEC_WIDTH_MAX',   177);
+
+    define('QRCAP_WIDTH',        0);
+    define('QRCAP_WORDS',        1);
+    define('QRCAP_REMINDER',     2);
+    define('QRCAP_EC',           3);
+
+    class QRspec {
+    
+        public static $capacity = array(
+            array(  0,    0, 0, array(   0,    0,    0,    0)),
+            array( 21,   26, 0, array(   7,   10,   13,   17)), // 1
+            array( 25,   44, 7, array(  10,   16,   22,   28)),
+            array( 29,   70, 7, array(  15,   26,   36,   44)),
+            array( 33,  100, 7, array(  20,   36,   52,   64)),
+            array( 37,  134, 7, array(  26,   48,   72,   88)), // 5
+            array( 41,  172, 7, array(  36,   64,   96,  112)),
+            array( 45,  196, 0, array(  40,   72,  108,  130)),
+            array( 49,  242, 0, array(  48,   88,  132,  156)),
+            array( 53,  292, 0, array(  60,  110,  160,  192)),
+            array( 57,  346, 0, array(  72,  130,  192,  224)), //10
+            array( 61,  404, 0, array(  80,  150,  224,  264)),
+            array( 65,  466, 0, array(  96,  176,  260,  308)),
+            array( 69,  532, 0, array( 104,  198,  288,  352)),
+            array( 73,  581, 3, array( 120,  216,  320,  384)),
+            array( 77,  655, 3, array( 132,  240,  360,  432)), //15
+            array( 81,  733, 3, array( 144,  280,  408,  480)),
+            array( 85,  815, 3, array( 168,  308,  448,  532)),
+            array( 89,  901, 3, array( 180,  338,  504,  588)),
+            array( 93,  991, 3, array( 196,  364,  546,  650)),
+            array( 97, 1085, 3, array( 224,  416,  600,  700)), //20
+            array(101, 1156, 4, array( 224,  442,  644,  750)),
+            array(105, 1258, 4, array( 252,  476,  690,  816)),
+            array(109, 1364, 4, array( 270,  504,  750,  900)),
+            array(113, 1474, 4, array( 300,  560,  810,  960)),
+            array(117, 1588, 4, array( 312,  588,  870, 1050)), //25
+            array(121, 1706, 4, array( 336,  644,  952, 1110)),
+            array(125, 1828, 4, array( 360,  700, 1020, 1200)),
+            array(129, 1921, 3, array( 390,  728, 1050, 1260)),
+            array(133, 2051, 3, array( 420,  784, 1140, 1350)),
+            array(137, 2185, 3, array( 450,  812, 1200, 1440)), //30
+            array(141, 2323, 3, array( 480,  868, 1290, 1530)),
+            array(145, 2465, 3, array( 510,  924, 1350, 1620)),
+            array(149, 2611, 3, array( 540,  980, 1440, 1710)),
+            array(153, 2761, 3, array( 570, 1036, 1530, 1800)),
+            array(157, 2876, 0, array( 570, 1064, 1590, 1890)), //35
+            array(161, 3034, 0, array( 600, 1120, 1680, 1980)),
+            array(165, 3196, 0, array( 630, 1204, 1770, 2100)),
+            array(169, 3362, 0, array( 660, 1260, 1860, 2220)),
+            array(173, 3532, 0, array( 720, 1316, 1950, 2310)),
+            array(177, 3706, 0, array( 750, 1372, 2040, 2430)) //40
+        );
+        
+        //----------------------------------------------------------------------
+        public static function getDataLength($version, $level)
+        {
+            return self::$capacity[$version][QRCAP_WORDS] - self::$capacity[$version][QRCAP_EC][$level];
+        }
+        
+        //----------------------------------------------------------------------
+        public static function getECCLength($version, $level)
+        {
+            return self::$capacity[$version][QRCAP_EC][$level];
+        }
+        
+        //----------------------------------------------------------------------
+        public static function getWidth($version)
+        {
+            return self::$capacity[$version][QRCAP_WIDTH];
+        }
+        
+        //----------------------------------------------------------------------
+        public static function getRemainder($version)
+        {
+            return self::$capacity[$version][QRCAP_REMINDER];
+        }
+        
+        //----------------------------------------------------------------------
+        public static function getMinimumVersion($size, $level)
+        {
+
+            for($i=1; $i<= QRSPEC_VERSION_MAX; $i++) {
+                $words  = self::$capacity[$i][QRCAP_WORDS] - self::$capacity[$i][QRCAP_EC][$level];
+                if($words >= $size) 
+                    return $i;
+            }
+
+            return -1;
+        }
+    
+        //######################################################################
+        
+        public static $lengthTableBits = array(
+            array(10, 12, 14),
+            array( 9, 11, 13),
+            array( 8, 16, 16),
+            array( 8, 10, 12)
+        );
+        
+        //----------------------------------------------------------------------
+        public static function lengthIndicator($mode, $version)
+        {
+            if ($mode == QR_MODE_STRUCTURE)
+                return 0;
+                
+            if ($version <= 9) {
+                $l = 0;
+            } else if ($version <= 26) {
+                $l = 1;
+            } else {
+                $l = 2;
+            }
+
+            return self::$lengthTableBits[$mode][$l];
+        }
+        
+        //----------------------------------------------------------------------
+        public static function maximumWords($mode, $version)
+        {
+            if($mode == QR_MODE_STRUCTURE) 
+                return 3;
+                
+            if($version <= 9) {
+                $l = 0;
+            } else if($version <= 26) {
+                $l = 1;
+            } else {
+                $l = 2;
+            }
+
+            $bits = self::$lengthTableBits[$mode][$l];
+            $words = (1 << $bits) - 1;
+            
+            if($mode == QR_MODE_KANJI) {
+                $words *= 2; // the number of bytes is required
+            }
+
+            return $words;
+        }
+
+        // Error correction code -----------------------------------------------
+        // Table of the error correction code (Reed-Solomon block)
+        // See Table 12-16 (pp.30-36), JIS X0510:2004.
+
+        public static $eccTable = array(
+            array(array( 0,  0), array( 0,  0), array( 0,  0), array( 0,  0)),
+            array(array( 1,  0), array( 1,  0), array( 1,  0), array( 1,  0)), // 1
+            array(array( 1,  0), array( 1,  0), array( 1,  0), array( 1,  0)),
+            array(array( 1,  0), array( 1,  0), array( 2,  0), array( 2,  0)),
+            array(array( 1,  0), array( 2,  0), array( 2,  0), array( 4,  0)),
+            array(array( 1,  0), array( 2,  0), array( 2,  2), array( 2,  2)), // 5
+            array(array( 2,  0), array( 4,  0), array( 4,  0), array( 4,  0)),
+            array(array( 2,  0), array( 4,  0), array( 2,  4), array( 4,  1)),
+            array(array( 2,  0), array( 2,  2), array( 4,  2), array( 4,  2)),
+            array(array( 2,  0), array( 3,  2), array( 4,  4), array( 4,  4)),
+            array(array( 2,  2), array( 4,  1), array( 6,  2), array( 6,  2)), //10
+            array(array( 4,  0), array( 1,  4), array( 4,  4), array( 3,  8)),
+            array(array( 2,  2), array( 6,  2), array( 4,  6), array( 7,  4)),
+            array(array( 4,  0), array( 8,  1), array( 8,  4), array(12,  4)),
+            array(array( 3,  1), array( 4,  5), array(11,  5), array(11,  5)),
+            array(array( 5,  1), array( 5,  5), array( 5,  7), array(11,  7)), //15
+            array(array( 5,  1), array( 7,  3), array(15,  2), array( 3, 13)),
+            array(array( 1,  5), array(10,  1), array( 1, 15), array( 2, 17)),
+            array(array( 5,  1), array( 9,  4), array(17,  1), array( 2, 19)),
+            array(array( 3,  4), array( 3, 11), array(17,  4), array( 9, 16)),
+            array(array( 3,  5), array( 3, 13), array(15,  5), array(15, 10)), //20
+            array(array( 4,  4), array(17,  0), array(17,  6), array(19,  6)),
+            array(array( 2,  7), array(17,  0), array( 7, 16), array(34,  0)),
+            array(array( 4,  5), array( 4, 14), array(11, 14), array(16, 14)),
+            array(array( 6,  4), array( 6, 14), array(11, 16), array(30,  2)),
+            array(array( 8,  4), array( 8, 13), array( 7, 22), array(22, 13)), //25
+            array(array(10,  2), array(19,  4), array(28,  6), array(33,  4)),
+            array(array( 8,  4), array(22,  3), array( 8, 26), array(12, 28)),
+            array(array( 3, 10), array( 3, 23), array( 4, 31), array(11, 31)),
+            array(array( 7,  7), array(21,  7), array( 1, 37), array(19, 26)),
+            array(array( 5, 10), array(19, 10), array(15, 25), array(23, 25)), //30
+            array(array(13,  3), array( 2, 29), array(42,  1), array(23, 28)),
+            array(array(17,  0), array(10, 23), array(10, 35), array(19, 35)),
+            array(array(17,  1), array(14, 21), array(29, 19), array(11, 46)),
+            array(array(13,  6), array(14, 23), array(44,  7), array(59,  1)),
+            array(array(12,  7), array(12, 26), array(39, 14), array(22, 41)), //35
+            array(array( 6, 14), array( 6, 34), array(46, 10), array( 2, 64)),
+            array(array(17,  4), array(29, 14), array(49, 10), array(24, 46)),
+            array(array( 4, 18), array(13, 32), array(48, 14), array(42, 32)),
+            array(array(20,  4), array(40,  7), array(43, 22), array(10, 67)),
+            array(array(19,  6), array(18, 31), array(34, 34), array(20, 61)),//40
+        );                                                                       
+
+        //----------------------------------------------------------------------
+        // CACHEABLE!!!
+        
+        public static function getEccSpec($version, $level, array &$spec)
+        {
+            if (count($spec) < 5) {
+                $spec = array(0,0,0,0,0);
+            }
+
+            $b1   = self::$eccTable[$version][$level][0];
+            $b2   = self::$eccTable[$version][$level][1];
+            $data = self::getDataLength($version, $level);
+            $ecc  = self::getECCLength($version, $level);
+
+            if($b2 == 0) {
+                $spec[0] = $b1;
+                $spec[1] = (int)($data / $b1);
+                $spec[2] = (int)($ecc / $b1);
+                $spec[3] = 0; 
+                $spec[4] = 0;
+            } else {
+                $spec[0] = $b1;
+                $spec[1] = (int)($data / ($b1 + $b2));
+                $spec[2] = (int)($ecc  / ($b1 + $b2));
+                $spec[3] = $b2;
+                $spec[4] = $spec[1] + 1;
+            }
+        }
+
+        // Alignment pattern ---------------------------------------------------
+
+        // Positions of alignment patterns.
+        // This array includes only the second and the third position of the 
+        // alignment patterns. Rest of them can be calculated from the distance 
+        // between them.
+         
+        // See Table 1 in Appendix E (pp.71) of JIS X0510:2004.
+         
+        public static $alignmentPattern = array(      
+            array( 0,  0),
+            array( 0,  0), array(18,  0), array(22,  0), array(26,  0), array(30,  0), // 1- 5
+            array(34,  0), array(22, 38), array(24, 42), array(26, 46), array(28, 50), // 6-10
+            array(30, 54), array(32, 58), array(34, 62), array(26, 46), array(26, 48), //11-15
+            array(26, 50), array(30, 54), array(30, 56), array(30, 58), array(34, 62), //16-20
+            array(28, 50), array(26, 50), array(30, 54), array(28, 54), array(32, 58), //21-25
+            array(30, 58), array(34, 62), array(26, 50), array(30, 54), array(26, 52), //26-30
+            array(30, 56), array(34, 60), array(30, 58), array(34, 62), array(30, 54), //31-35
+            array(24, 50), array(28, 54), array(32, 58), array(26, 54), array(30, 58), //35-40
+        );                                                                                  
+
+        
+        /** --------------------------------------------------------------------
+         * Put an alignment marker.
+         * @param frame
+         * @param width
+         * @param ox,oy center coordinate of the pattern
+         */
+        public static function putAlignmentMarker(array &$frame, $ox, $oy)
+        {
+            $finder = array(
+                "\xa1\xa1\xa1\xa1\xa1",
+                "\xa1\xa0\xa0\xa0\xa1",
+                "\xa1\xa0\xa1\xa0\xa1",
+                "\xa1\xa0\xa0\xa0\xa1",
+                "\xa1\xa1\xa1\xa1\xa1"
+            );                        
+            
+            $yStart = $oy-2;         
+            $xStart = $ox-2;
+            
+            for($y=0; $y<5; $y++) {
+                QRstr::set($frame, $xStart, $yStart+$y, $finder[$y]);
+            }
+        }
+
+        //----------------------------------------------------------------------
+        public static function putAlignmentPattern($version, &$frame, $width)
+        {
+            if($version < 2)
+                return;
+
+            $d = self::$alignmentPattern[$version][1] - self::$alignmentPattern[$version][0];
+            if($d < 0) {
+                $w = 2;
+            } else {
+                $w = (int)(($width - self::$alignmentPattern[$version][0]) / $d + 2);
+            }
+
+            if($w * $w - 3 == 1) {
+                $x = self::$alignmentPattern[$version][0];
+                $y = self::$alignmentPattern[$version][0];
+                self::putAlignmentMarker($frame, $x, $y);
+                return;
+            }
+
+            $cx = self::$alignmentPattern[$version][0];
+            for($x=1; $x<$w - 1; $x++) {
+                self::putAlignmentMarker($frame, 6, $cx);
+                self::putAlignmentMarker($frame, $cx,  6);
+                $cx += $d;
+            }
+
+            $cy = self::$alignmentPattern[$version][0];
+            for($y=0; $y<$w-1; $y++) {
+                $cx = self::$alignmentPattern[$version][0];
+                for($x=0; $x<$w-1; $x++) {
+                    self::putAlignmentMarker($frame, $cx, $cy);
+                    $cx += $d;
+                }
+                $cy += $d;
+            }
+        }
+
+        // Version information pattern -----------------------------------------
+
+		// Version information pattern (BCH coded).
+        // See Table 1 in Appendix D (pp.68) of JIS X0510:2004.
+        
+		// size: [QRSPEC_VERSION_MAX - 6]
+		
+        public static $versionPattern = array(
+            0x07c94, 0x085bc, 0x09a99, 0x0a4d3, 0x0bbf6, 0x0c762, 0x0d847, 0x0e60d,
+            0x0f928, 0x10b78, 0x1145d, 0x12a17, 0x13532, 0x149a6, 0x15683, 0x168c9,
+            0x177ec, 0x18ec4, 0x191e1, 0x1afab, 0x1b08e, 0x1cc1a, 0x1d33f, 0x1ed75,
+            0x1f250, 0x209d5, 0x216f0, 0x228ba, 0x2379f, 0x24b0b, 0x2542e, 0x26a64,
+            0x27541, 0x28c69
+        );
+
+        //----------------------------------------------------------------------
+        public static function getVersionPattern($version)
+        {
+            if($version < 7 || $version > QRSPEC_VERSION_MAX)
+                return 0;
+
+            return self::$versionPattern[$version -7];
+        }
+
+        // Format information --------------------------------------------------
+        // See calcFormatInfo in tests/test_qrspec.c (orginal qrencode c lib)
+        
+        public static $formatInfo = array(
+            array(0x77c4, 0x72f3, 0x7daa, 0x789d, 0x662f, 0x6318, 0x6c41, 0x6976),
+            array(0x5412, 0x5125, 0x5e7c, 0x5b4b, 0x45f9, 0x40ce, 0x4f97, 0x4aa0),
+            array(0x355f, 0x3068, 0x3f31, 0x3a06, 0x24b4, 0x2183, 0x2eda, 0x2bed),
+            array(0x1689, 0x13be, 0x1ce7, 0x19d0, 0x0762, 0x0255, 0x0d0c, 0x083b)
+        );
+
+        public static function getFormatInfo($mask, $level)
+        {
+            if($mask < 0 || $mask > 7)
+                return 0;
+                
+            if($level < 0 || $level > 3)
+                return 0;                
+
+            return self::$formatInfo[$level][$mask];
+        }
+
+        // Frame ---------------------------------------------------------------
+        // Cache of initial frames.
+         
+        public static $frames = array();
+
+        /** --------------------------------------------------------------------
+         * Put a finder pattern.
+         * @param frame
+         * @param width
+         * @param ox,oy upper-left coordinate of the pattern
+         */
+        public static function putFinderPattern(&$frame, $ox, $oy)
+        {
+            $finder = array(
+                "\xc1\xc1\xc1\xc1\xc1\xc1\xc1",
+                "\xc1\xc0\xc0\xc0\xc0\xc0\xc1",
+                "\xc1\xc0\xc1\xc1\xc1\xc0\xc1",
+                "\xc1\xc0\xc1\xc1\xc1\xc0\xc1",
+                "\xc1\xc0\xc1\xc1\xc1\xc0\xc1",
+                "\xc1\xc0\xc0\xc0\xc0\xc0\xc1",
+                "\xc1\xc1\xc1\xc1\xc1\xc1\xc1"
+            );                            
+            
+            for($y=0; $y<7; $y++) {
+                QRstr::set($frame, $ox, $oy+$y, $finder[$y]);
+            }
+        }
+
+        //----------------------------------------------------------------------
+        public static function createFrame($version)
+        {
+            $width = self::$capacity[$version][QRCAP_WIDTH];
+            $frameLine = str_repeat ("\0", $width);
+            $frame = array_fill(0, $width, $frameLine);
+
+            // Finder pattern
+            self::putFinderPattern($frame, 0, 0);
+            self::putFinderPattern($frame, $width - 7, 0);
+            self::putFinderPattern($frame, 0, $width - 7);
+            
+            // Separator
+            $yOffset = $width - 7;
+            
+            for($y=0; $y<7; $y++) {
+                $frame[$y][7] = "\xc0";
+                $frame[$y][$width - 8] = "\xc0";
+                $frame[$yOffset][7] = "\xc0";
+                $yOffset++;
+            }
+            
+            $setPattern = str_repeat("\xc0", 8);
+            
+            QRstr::set($frame, 0, 7, $setPattern);
+            QRstr::set($frame, $width-8, 7, $setPattern);
+            QRstr::set($frame, 0, $width - 8, $setPattern);
+        
+            // Format info
+            $setPattern = str_repeat("\x84", 9);
+            QRstr::set($frame, 0, 8, $setPattern);
+            QRstr::set($frame, $width - 8, 8, $setPattern, 8);
+            
+            $yOffset = $width - 8;
+
+            for($y=0; $y<8; $y++,$yOffset++) {
+                $frame[$y][8] = "\x84";
+                $frame[$yOffset][8] = "\x84";
+            }
+
+            // Timing pattern  
+            
+            for($i=1; $i<$width-15; $i++) {
+                $frame[6][7+$i] = chr(0x90 | ($i & 1));
+                $frame[7+$i][6] = chr(0x90 | ($i & 1));
+            }
+            
+            // Alignment pattern  
+            self::putAlignmentPattern($version, $frame, $width);
+            
+            // Version information 
+            if($version >= 7) {
+                $vinf = self::getVersionPattern($version);
+
+                $v = $vinf;
+                
+                for($x=0; $x<6; $x++) {
+                    for($y=0; $y<3; $y++) {
+                        $frame[($width - 11)+$y][$x] = chr(0x88 | ($v & 1));
+                        $v = $v >> 1;
+                    }
+                }
+
+                $v = $vinf;
+                for($y=0; $y<6; $y++) {
+                    for($x=0; $x<3; $x++) {
+                        $frame[$y][$x+($width - 11)] = chr(0x88 | ($v & 1));
+                        $v = $v >> 1;
+                    }
+                }
+            }
+    
+            // and a little bit...  
+            $frame[$width - 8][8] = "\x81";
+            
+            return $frame;
+        }
+
+        //----------------------------------------------------------------------
+        public static function debug($frame, $binary_mode = false)
+        {
+            if ($binary_mode) {
+            
+                    foreach ($frame as &$frameLine) {
+                        $frameLine = join('<span class="m">&nbsp;&nbsp;</span>', explode('0', $frameLine));
+                        $frameLine = join('&#9608;&#9608;', explode('1', $frameLine));
+                    }
+                    
+                    ?>
+                <style>
+                    .m { background-color: white; }
+                </style>
+                <?php
+                    echo '<pre><tt><br/ ><br/ ><br/ >&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;';
+                    echo join("<br/ >&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;", $frame);
+                    echo '</tt></pre><br/ ><br/ ><br/ ><br/ ><br/ ><br/ >';
+            
+            } else {
+            
+                foreach ($frame as &$frameLine) {
+                    $frameLine = join('<span class="m">&nbsp;</span>',  explode("\xc0", $frameLine));
+                    $frameLine = join('<span class="m">&#9618;</span>', explode("\xc1", $frameLine));
+                    $frameLine = join('<span class="p">&nbsp;</span>',  explode("\xa0", $frameLine));
+                    $frameLine = join('<span class="p">&#9618;</span>', explode("\xa1", $frameLine));
+                    $frameLine = join('<span class="s">&#9671;</span>', explode("\x84", $frameLine)); //format 0
+                    $frameLine = join('<span class="s">&#9670;</span>', explode("\x85", $frameLine)); //format 1
+                    $frameLine = join('<span class="x">&#9762;</span>', explode("\x81", $frameLine)); //special bit
+                    $frameLine = join('<span class="c">&nbsp;</span>',  explode("\x90", $frameLine)); //clock 0
+                    $frameLine = join('<span class="c">&#9719;</span>', explode("\x91", $frameLine)); //clock 1
+                    $frameLine = join('<span class="f">&nbsp;</span>',  explode("\x88", $frameLine)); //version
+                    $frameLine = join('<span class="f">&#9618;</span>', explode("\x89", $frameLine)); //version
+                    $frameLine = join('&#9830;', explode("\x01", $frameLine));
+                    $frameLine = join('&#8901;', explode("\0", $frameLine));
+                }
+                
+                ?>
+                <style>
+                    .p { background-color: yellow; }
+                    .m { background-color: #00FF00; }
+                    .s { background-color: #FF0000; }
+                    .c { background-color: aqua; }
+                    .x { background-color: pink; }
+                    .f { background-color: gold; }
+                </style>
+                <?php
+                echo "<pre><tt>";
+                echo join("<br/ >", $frame);
+                echo "</tt></pre>";
+            
+            }
+        }
+
+        //----------------------------------------------------------------------
+        public static function serial($frame)
+        {
+            return gzcompress(join("\n", $frame), 9);
+        }
+        
+        //----------------------------------------------------------------------
+        public static function unserial($code)
+        {
+            return explode("\n", gzuncompress($code));
+        }
+        
+        //----------------------------------------------------------------------
+        public static function newFrame($version)
+        {
+            if($version < 1 || $version > QRSPEC_VERSION_MAX) 
+                return null;
+
+            if(!isset(self::$frames[$version])) {
+                
+                $fileName = QR_CACHE_DIR.'frame_'.$version.'.dat';
+                
+                if (QR_CACHEABLE) {
+                    if (file_exists($fileName)) {
+                        self::$frames[$version] = self::unserial(file_get_contents($fileName));
+                    } else {
+                        self::$frames[$version] = self::createFrame($version);
+                        file_put_contents($fileName, self::serial(self::$frames[$version]));
+                    }
+                } else {
+                    self::$frames[$version] = self::createFrame($version);
+                }
+            }
+            
+            if(is_null(self::$frames[$version]))
+                return null;
+
+            return self::$frames[$version];
+        }
+
+        //----------------------------------------------------------------------
+        public static function rsBlockNum($spec)     { return $spec[0] + $spec[3]; }
+        public static function rsBlockNum1($spec)    { return $spec[0]; }
+        public static function rsDataCodes1($spec)   { return $spec[1]; }
+        public static function rsEccCodes1($spec)    { return $spec[2]; }
+        public static function rsBlockNum2($spec)    { return $spec[3]; }
+        public static function rsDataCodes2($spec)   { return $spec[4]; }
+        public static function rsEccCodes2($spec)    { return $spec[2]; }
+        public static function rsDataLength($spec)   { return ($spec[0] * $spec[1]) + ($spec[3] * $spec[4]);    }
+        public static function rsEccLength($spec)    { return ($spec[0] + $spec[3]) * $spec[2]; }
+        
+    }
\ No newline at end of file
diff --git a/src/includes/phpqrcode/qrsplit.php b/src/includes/phpqrcode/qrsplit.php
new file mode 100644
index 0000000..d75b827
--- /dev/null
+++ b/src/includes/phpqrcode/qrsplit.php
@@ -0,0 +1,311 @@
+<?php
+/*
+ * PHP QR Code encoder
+ *
+ * Input splitting classes
+ *
+ * Based on libqrencode C library distributed under LGPL 2.1
+ * Copyright (C) 2006, 2007, 2008, 2009 Kentaro Fukuchi <fukuchi@megaui.net>
+ *
+ * PHP QR Code is distributed under LGPL 3
+ * Copyright (C) 2010 Dominik Dzienia <deltalab at poczta dot fm>
+ *
+ * The following data / specifications are taken from
+ * "Two dimensional symbol -- QR-code -- Basic Specification" (JIS X0510:2004)
+ *  or
+ * "Automatic identification and data capture techniques -- 
+ *  QR Code 2005 bar code symbology specification" (ISO/IEC 18004:2006)
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 3 of the License, or any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+    class QRsplit {
+
+        public $dataStr = '';
+        public $input;
+        public $modeHint;
+
+        //----------------------------------------------------------------------
+        public function __construct($dataStr, $input, $modeHint) 
+        {
+            $this->dataStr  = $dataStr;
+            $this->input    = $input;
+            $this->modeHint = $modeHint;
+        }
+        
+        //----------------------------------------------------------------------
+        public static function isdigitat($str, $pos)
+        {    
+            if ($pos >= strlen($str))
+                return false;
+            
+            return ((ord($str[$pos]) >= ord('0'))&&(ord($str[$pos]) <= ord('9')));
+        }
+        
+        //----------------------------------------------------------------------
+        public static function isalnumat($str, $pos)
+        {
+            if ($pos >= strlen($str))
+                return false;
+                
+            return (QRinput::lookAnTable(ord($str[$pos])) >= 0);
+        }
+
+        //----------------------------------------------------------------------
+        public function identifyMode($pos)
+        {
+            if ($pos >= strlen($this->dataStr)) 
+                return QR_MODE_NUL;
+                
+            $c = $this->dataStr[$pos];
+            
+            if(self::isdigitat($this->dataStr, $pos)) {
+                return QR_MODE_NUM;
+            } else if(self::isalnumat($this->dataStr, $pos)) {
+                return QR_MODE_AN;
+            } else if($this->modeHint == QR_MODE_KANJI) {
+            
+                if ($pos+1 < strlen($this->dataStr)) 
+                {
+                    $d = $this->dataStr[$pos+1];
+                    $word = (ord($c) << 8) | ord($d);
+                    if(($word >= 0x8140 && $word <= 0x9ffc) || ($word >= 0xe040 && $word <= 0xebbf)) {
+                        return QR_MODE_KANJI;
+                    }
+                }
+            }
+
+            return QR_MODE_8;
+        } 
+        
+        //----------------------------------------------------------------------
+        public function eatNum()
+        {
+            $ln = QRspec::lengthIndicator(QR_MODE_NUM, $this->input->getVersion());
+
+            $p = 0;
+            while(self::isdigitat($this->dataStr, $p)) {
+                $p++;
+            }
+            
+            $run = $p;
+            $mode = $this->identifyMode($p);
+            
+            if($mode == QR_MODE_8) {
+                $dif = QRinput::estimateBitsModeNum($run) + 4 + $ln
+                     + QRinput::estimateBitsMode8(1)         // + 4 + l8
+                     - QRinput::estimateBitsMode8($run + 1); // - 4 - l8
+                if($dif > 0) {
+                    return $this->eat8();
+                }
+            }
+            if($mode == QR_MODE_AN) {
+                $dif = QRinput::estimateBitsModeNum($run) + 4 + $ln
+                     + QRinput::estimateBitsModeAn(1)        // + 4 + la
+                     - QRinput::estimateBitsModeAn($run + 1);// - 4 - la
+                if($dif > 0) {
+                    return $this->eatAn();
+                }
+            }
+            
+            $ret = $this->input->append(QR_MODE_NUM, $run, str_split($this->dataStr));
+            if($ret < 0)
+                return -1;
+
+            return $run;
+        }
+        
+        //----------------------------------------------------------------------
+        public function eatAn()
+        {
+            $la = QRspec::lengthIndicator(QR_MODE_AN,  $this->input->getVersion());
+            $ln = QRspec::lengthIndicator(QR_MODE_NUM, $this->input->getVersion());
+
+            $p = 0;
+            
+            while(self::isalnumat($this->dataStr, $p)) {
+                if(self::isdigitat($this->dataStr, $p)) {
+                    $q = $p;
+                    while(self::isdigitat($this->dataStr, $q)) {
+                        $q++;
+                    }
+                    
+                    $dif = QRinput::estimateBitsModeAn($p) // + 4 + la
+                         + QRinput::estimateBitsModeNum($q - $p) + 4 + $ln
+                         - QRinput::estimateBitsModeAn($q); // - 4 - la
+                         
+                    if($dif < 0) {
+                        break;
+                    } else {
+                        $p = $q;
+                    }
+                } else {
+                    $p++;
+                }
+            }
+
+            $run = $p;
+
+            if(!self::isalnumat($this->dataStr, $p)) {
+                $dif = QRinput::estimateBitsModeAn($run) + 4 + $la
+                     + QRinput::estimateBitsMode8(1) // + 4 + l8
+                      - QRinput::estimateBitsMode8($run + 1); // - 4 - l8
+                if($dif > 0) {
+                    return $this->eat8();
+                }
+            }
+
+            $ret = $this->input->append(QR_MODE_AN, $run, str_split($this->dataStr));
+            if($ret < 0)
+                return -1;
+
+            return $run;
+        }
+        
+        //----------------------------------------------------------------------
+        public function eatKanji()
+        {
+            $p = 0;
+            
+            while($this->identifyMode($p) == QR_MODE_KANJI) {
+                $p += 2;
+            }
+            
+            $ret = $this->input->append(QR_MODE_KANJI, $p, str_split($this->dataStr));
+            if($ret < 0)
+                return -1;
+
+            return $run;
+        }
+
+        //----------------------------------------------------------------------
+        public function eat8()
+        {
+            $la = QRspec::lengthIndicator(QR_MODE_AN, $this->input->getVersion());
+            $ln = QRspec::lengthIndicator(QR_MODE_NUM, $this->input->getVersion());
+
+            $p = 1;
+            $dataStrLen = strlen($this->dataStr);
+            
+            while($p < $dataStrLen) {
+                
+                $mode = $this->identifyMode($p);
+                if($mode == QR_MODE_KANJI) {
+                    break;
+                }
+                if($mode == QR_MODE_NUM) {
+                    $q = $p;
+                    while(self::isdigitat($this->dataStr, $q)) {
+                        $q++;
+                    }
+                    $dif = QRinput::estimateBitsMode8($p) // + 4 + l8
+                         + QRinput::estimateBitsModeNum($q - $p) + 4 + $ln
+                         - QRinput::estimateBitsMode8($q); // - 4 - l8
+                    if($dif < 0) {
+                        break;
+                    } else {
+                        $p = $q;
+                    }
+                } else if($mode == QR_MODE_AN) {
+                    $q = $p;
+                    while(self::isalnumat($this->dataStr, $q)) {
+                        $q++;
+                    }
+                    $dif = QRinput::estimateBitsMode8($p)  // + 4 + l8
+                         + QRinput::estimateBitsModeAn($q - $p) + 4 + $la
+                         - QRinput::estimateBitsMode8($q); // - 4 - l8
+                    if($dif < 0) {
+                        break;
+                    } else {
+                        $p = $q;
+                    }
+                } else {
+                    $p++;
+                }
+            }
+
+            $run = $p;
+            $ret = $this->input->append(QR_MODE_8, $run, str_split($this->dataStr));
+            
+            if($ret < 0)
+                return -1;
+
+            return $run;
+        }
+
+        //----------------------------------------------------------------------
+        public function splitString()
+        {
+            while (strlen($this->dataStr) > 0)
+            {
+                if($this->dataStr == '')
+                    return 0;
+
+                $mode = $this->identifyMode(0);
+                
+                switch ($mode) {
+                    case QR_MODE_NUM: $length = $this->eatNum(); break;
+                    case QR_MODE_AN:  $length = $this->eatAn(); break;
+                    case QR_MODE_KANJI:
+                        if ($hint == QR_MODE_KANJI)
+                                $length = $this->eatKanji();
+                        else    $length = $this->eat8();
+                        break;
+                    default: $length = $this->eat8(); break;
+                
+                }
+
+                if($length == 0) return 0;
+                if($length < 0)  return -1;
+                
+                $this->dataStr = substr($this->dataStr, $length);
+            }
+        }
+
+        //----------------------------------------------------------------------
+        public function toUpper()
+        {
+            $stringLen = strlen($this->dataStr);
+            $p = 0;
+            
+            while ($p<$stringLen) {
+                $mode = self::identifyMode(substr($this->dataStr, $p), $this->modeHint);
+                if($mode == QR_MODE_KANJI) {
+                    $p += 2;
+                } else {
+                    if (ord($this->dataStr[$p]) >= ord('a') && ord($this->dataStr[$p]) <= ord('z')) {
+                        $this->dataStr[$p] = chr(ord($this->dataStr[$p]) - 32);
+                    }
+                    $p++;
+                }
+            }
+
+            return $this->dataStr;
+        }
+
+        //----------------------------------------------------------------------
+        public static function splitStringToQRinput($string, QRinput $input, $modeHint, $casesensitive = true)
+        {
+            if(is_null($string) || $string == '\0' || $string == '') {
+                throw new Exception('empty string!!!');
+            }
+
+            $split = new QRsplit($string, $input, $modeHint);
+            
+            if(!$casesensitive)
+                $split->toUpper();
+                
+            return $split->splitString();
+        }
+    }
\ No newline at end of file
diff --git a/src/includes/phpqrcode/qrtools.php b/src/includes/phpqrcode/qrtools.php
new file mode 100644
index 0000000..3012db4
--- /dev/null
+++ b/src/includes/phpqrcode/qrtools.php
@@ -0,0 +1,172 @@
+<?php
+/*
+ * PHP QR Code encoder
+ *
+ * Toolset, handy and debug utilites.
+ *
+ * PHP QR Code is distributed under LGPL 3
+ * Copyright (C) 2010 Dominik Dzienia <deltalab at poczta dot fm>
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 3 of the License, or any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+    class QRtools {
+    
+        //----------------------------------------------------------------------
+        public static function binarize($frame)
+        {
+            $len = count($frame);
+            foreach ($frame as &$frameLine) {
+                
+                for($i=0; $i<$len; $i++) {
+                    $frameLine[$i] = (ord($frameLine[$i])&1)?'1':'0';
+                }
+            }
+            
+            return $frame;
+        }
+        
+        //----------------------------------------------------------------------
+        public static function tcpdfBarcodeArray($code, $mode = 'QR,L', $tcPdfVersion = '4.5.037')
+        {
+            $barcode_array = array();
+            
+            if (!is_array($mode))
+                $mode = explode(',', $mode);
+                
+            $eccLevel = 'L';
+                
+            if (count($mode) > 1) {
+                $eccLevel = $mode[1];
+            }
+                
+            $qrTab = QRcode::text($code, false, $eccLevel);
+            $size = count($qrTab);
+                
+            $barcode_array['num_rows'] = $size;
+            $barcode_array['num_cols'] = $size;
+            $barcode_array['bcode'] = array();
+                
+            foreach ($qrTab as $line) {
+                $arrAdd = array();
+                foreach(str_split($line) as $char)
+                    $arrAdd[] = ($char=='1')?1:0;
+                $barcode_array['bcode'][] = $arrAdd;
+            }
+                    
+            return $barcode_array;
+        }
+        
+        //----------------------------------------------------------------------
+        public static function clearCache()
+        {
+            self::$frames = array();
+        }
+        
+        //----------------------------------------------------------------------
+        public static function buildCache()
+        {
+			QRtools::markTime('before_build_cache');
+			
+			$mask = new QRmask();
+            for ($a=1; $a <= QRSPEC_VERSION_MAX; $a++) {
+                $frame = QRspec::newFrame($a);
+                if (QR_IMAGE) {
+                    $fileName = QR_CACHE_DIR.'frame_'.$a.'.png';
+                    QRimage::png(self::binarize($frame), $fileName, 1, 0);
+                }
+				
+				$width = count($frame);
+				$bitMask = array_fill(0, $width, array_fill(0, $width, 0));
+				for ($maskNo=0; $maskNo<8; $maskNo++)
+					$mask->makeMaskNo($maskNo, $width, $frame, $bitMask, true);
+            }
+			
+			QRtools::markTime('after_build_cache');
+        }
+
+        //----------------------------------------------------------------------
+        public static function log($outfile, $err)
+        {
+            if (QR_LOG_DIR !== false) {
+                if ($err != '') {
+                    if ($outfile !== false) {
+                        file_put_contents(QR_LOG_DIR.basename($outfile).'-errors.txt', date('Y-m-d H:i:s').': '.$err, FILE_APPEND);
+                    } else {
+                        file_put_contents(QR_LOG_DIR.'errors.txt', date('Y-m-d H:i:s').': '.$err, FILE_APPEND);
+                    }
+                }    
+            }
+        }
+        
+        //----------------------------------------------------------------------
+        public static function dumpMask($frame) 
+        {
+            $width = count($frame);
+            for($y=0;$y<$width;$y++) {
+                for($x=0;$x<$width;$x++) {
+                    echo ord($frame[$y][$x]).',';
+                }
+            }
+        }
+        
+        //----------------------------------------------------------------------
+        public static function markTime($markerId)
+        {
+            list($usec, $sec) = explode(" ", microtime());
+            $time = ((float)$usec + (float)$sec);
+            
+            if (!isset($GLOBALS['qr_time_bench']))
+                $GLOBALS['qr_time_bench'] = array();
+            
+            $GLOBALS['qr_time_bench'][$markerId] = $time;
+        }
+        
+        //----------------------------------------------------------------------
+        public static function timeBenchmark()
+        {
+            self::markTime('finish');
+        
+            $lastTime = 0;
+            $startTime = 0;
+            $p = 0;
+
+            echo '<table cellpadding="3" cellspacing="1">
+                    <thead><tr style="border-bottom:1px solid silver"><td colspan="2" style="text-align:center">BENCHMARK</td></tr></thead>
+                    <tbody>';
+
+            foreach($GLOBALS['qr_time_bench'] as $markerId=>$thisTime) {
+                if ($p > 0) {
+                    echo '<tr><th style="text-align:right">till '.$markerId.': </th><td>'.number_format($thisTime-$lastTime, 6).'s</td></tr>';
+                } else {
+                    $startTime = $thisTime;
+                }
+                
+                $p++;
+                $lastTime = $thisTime;
+            }
+            
+            echo '</tbody><tfoot>
+                <tr style="border-top:2px solid black"><th style="text-align:right">TOTAL: </th><td>'.number_format($lastTime-$startTime, 6).'s</td></tr>
+            </tfoot>
+            </table>';
+        }
+        
+    }
+    
+    //##########################################################################
+    
+    QRtools::markTime('start');
+    
\ No newline at end of file
diff --git a/src/includes/phpqrcode/tools/merge.bat b/src/includes/phpqrcode/tools/merge.bat
new file mode 100755
index 0000000..b60a485
--- /dev/null
+++ b/src/includes/phpqrcode/tools/merge.bat
@@ -0,0 +1,2 @@
+php ./merge.php
+pause
\ No newline at end of file
diff --git a/src/includes/phpqrcode/tools/merge.php b/src/includes/phpqrcode/tools/merge.php
new file mode 100644
index 0000000..19d338b
--- /dev/null
+++ b/src/includes/phpqrcode/tools/merge.php
@@ -0,0 +1,70 @@
+<?php
+
+/*
+ * PHP QR Code encoder
+ *
+ * Tool for merging all library files into one, simpler to incorporate.
+ * 
+ * MAKE SURE THAT RESULTING PHPQRCode.php (and its dir) ARE WRITABLE!
+ *
+ * PHP QR Code is distributed under LGPL 3
+ * Copyright (C) 2010 Dominik Dzienia <deltalab at poczta dot fm>
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 3 of the License, or any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+ 
+    $QR_BASEDIR = dirname(__FILE__).DIRECTORY_SEPARATOR.'..'.DIRECTORY_SEPARATOR;
+    $QR_TOOLSDIR = dirname(__FILE__).DIRECTORY_SEPARATOR;
+    
+    $outputFile = $QR_BASEDIR.'phpqrcode.php';
+    
+    // Required libs
+    
+    $fileList = array(
+        $QR_BASEDIR.'qrconst.php',
+        $QR_TOOLSDIR.'merged_config.php',
+        $QR_BASEDIR.'qrtools.php',
+        $QR_BASEDIR.'qrspec.php',
+        $QR_BASEDIR.'qrimage.php',
+        $QR_BASEDIR.'qrinput.php',
+        $QR_BASEDIR.'qrbitstream.php',
+        $QR_BASEDIR.'qrsplit.php',
+        $QR_BASEDIR.'qrrscode.php',
+        $QR_BASEDIR.'qrmask.php',
+        $QR_BASEDIR.'qrencode.php'
+    );
+    
+    $headerFile = $QR_TOOLSDIR.'merged_header.php';
+    $versionFile = $QR_BASEDIR.'VERSION';
+    
+    $outputCode = '';
+    
+    foreach($fileList as $fileName) {
+        $outputCode .= "\n\n".'//---- '.basename($fileName).' -----------------------------'."\n\n";
+        $anotherCode = file_get_contents($fileName);
+        $anotherCode = preg_replace ('/^<\?php/', '', $anotherCode);
+        $anotherCode = preg_replace ('/\?>\*$/', '', $anotherCode);
+        $outputCode .= "\n\n".$anotherCode."\n\n";
+    }
+    
+	$versionDataEx = explode("\n", file_get_contents($versionFile));
+	
+    $outputContents = file_get_contents($headerFile);
+    $outputContents .= "\n\n/*\n * Version: ".trim($versionDataEx[0])."\n * Build: ".trim($versionDataEx[1])."\n */\n\n";
+    $outputContents .= $outputCode;
+    
+    file_put_contents($outputFile, $outputContents);
+    
+    
\ No newline at end of file
diff --git a/src/includes/phpqrcode/tools/merge.sh b/src/includes/phpqrcode/tools/merge.sh
new file mode 100644
index 0000000..e4c2fbc
--- /dev/null
+++ b/src/includes/phpqrcode/tools/merge.sh
@@ -0,0 +1,2 @@
+#!/bin/sh
+php ./merge.php
\ No newline at end of file
diff --git a/src/includes/phpqrcode/tools/merged_config.php b/src/includes/phpqrcode/tools/merged_config.php
new file mode 100644
index 0000000..55ddb45
--- /dev/null
+++ b/src/includes/phpqrcode/tools/merged_config.php
@@ -0,0 +1,17 @@
+<?php
+/*
+ * PHP QR Code encoder
+ *
+ * Config file, tuned-up for merged verion
+ */
+     
+    define('QR_CACHEABLE', false);       // use cache - more disk reads but less CPU power, masks and format templates are stored there
+    define('QR_CACHE_DIR', false);       // used when QR_CACHEABLE === true
+    define('QR_LOG_DIR', false);         // default error logs dir   
+    
+    define('QR_FIND_BEST_MASK', true);                                                          // if true, estimates best mask (spec. default, but extremally slow; set to false to significant performance boost but (propably) worst quality code
+    define('QR_FIND_FROM_RANDOM', 2);                                                       // if false, checks all masks available, otherwise value tells count of masks need to be checked, mask id are got randomly
+    define('QR_DEFAULT_MASK', 2);                                                               // when QR_FIND_BEST_MASK === false
+                                                  
+    define('QR_PNG_MAXIMUM_SIZE',  1024);                                                       // maximum allowed png image width (in pixels), tune to make sure GD and PHP can handle such big images
+                                                  
\ No newline at end of file
diff --git a/src/includes/phpqrcode/tools/merged_header.php b/src/includes/phpqrcode/tools/merged_header.php
new file mode 100644
index 0000000..25805e5
--- /dev/null
+++ b/src/includes/phpqrcode/tools/merged_header.php
@@ -0,0 +1,36 @@
+<?php
+
+/*
+ * PHP QR Code encoder
+ *
+ * This file contains MERGED version of PHP QR Code library.
+ * It was auto-generated from full version for your convenience.
+ *
+ * This merged version was configured to not requre any external files,
+ * with disabled cache, error loging and weker but faster mask matching.
+ * If you need tune it up please use non-merged version.
+ *
+ * For full version, documentation, examples of use please visit:
+ *
+ *    http://phpqrcode.sourceforge.net/
+ *    https://sourceforge.net/projects/phpqrcode/
+ *
+ * PHP QR Code is distributed under LGPL 3
+ * Copyright (C) 2010 Dominik Dzienia <deltalab at poczta dot fm>
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 3 of the License, or any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+ 
+ 
\ No newline at end of file
diff --git a/src/includes/setup.php b/src/includes/setup.php
new file mode 100644
index 0000000..9e22439
--- /dev/null
+++ b/src/includes/setup.php
@@ -0,0 +1,50 @@
+<?php
+declare(strict_types=1);
+
+function ensure_default_admin(): void
+{
+    static $ran = false;
+    if ($ran) {
+        return;
+    }
+    $ran = true;
+
+    $username = getenv('ADMIN_USERNAME') ?: 'admin';
+    $password = getenv('ADMIN_PASSWORD') ?: 'Admin123!';
+    $fullName = getenv('ADMIN_FULLNAME') ?: 'System Administrator';
+    $email = getenv('ADMIN_EMAIL') ?: 'admin@example.com';
+    $resetFlag = getenv('ADMIN_RESET_PASSWORD');
+    $shouldReset = $resetFlag === false ? true : filter_var($resetFlag, FILTER_VALIDATE_BOOLEAN);
+
+    try {
+        $pdo = db();
+        $stmt = $pdo->prepare('SELECT id, password FROM users WHERE username = :username LIMIT 1');
+        $stmt->execute(['username' => $username]);
+        $user = $stmt->fetch();
+
+        if (!$user) {
+            $insert = $pdo->prepare(
+                'INSERT INTO users (username, password, role, full_name, email, status)
+                 VALUES (:username, :password, :role, :full_name, :email, 1)'
+            );
+            $insert->execute([
+                'username' => $username,
+                'password' => password_hash($password, PASSWORD_BCRYPT),
+                'role' => 'admin',
+                'full_name' => $fullName,
+                'email' => $email,
+            ]);
+            return;
+        }
+
+        if ($shouldReset && !password_verify($password, $user['password'])) {
+            $update = $pdo->prepare('UPDATE users SET password = :password, status = 1 WHERE id = :id');
+            $update->execute([
+                'password' => password_hash($password, PASSWORD_BCRYPT),
+                'id' => $user['id'],
+            ]);
+        }
+    } catch (Throwable $exception) {
+        throw $exception;
+    }
+}
diff --git a/src/index.php b/src/index.php
new file mode 100644
index 0000000..7689595
--- /dev/null
+++ b/src/index.php
@@ -0,0 +1,625 @@
+<?php
+require __DIR__ . '/includes/bootstrap.php';
+
+if (is_logged_in()) {
+    redirect('admin/dashboard.php');
+}
+
+function landing_stat(string $sql, string $default = '0'): string
+{
+    try {
+        $pdo = db();
+        $stmt = $pdo->query($sql);
+        $value = $stmt->fetchColumn();
+        if ($value === false || $value === null) {
+            return $default;
+        }
+
+        return number_format((int) $value);
+    } catch (Throwable) {
+        return $default;
+    }
+}
+
+$activeStudents = landing_stat('SELECT COUNT(*) FROM students WHERE status = 1', '0');
+$courseCount = landing_stat('SELECT COUNT(*) FROM courses WHERE status = 1', '12');
+$todayCheckins = landing_stat('SELECT COUNT(*) FROM attendance WHERE DATE(created_at) = CURDATE()', '0');
+?>
+<!DOCTYPE html>
+<html lang="en">
+<head>
+    <meta charset="UTF-8">
+    <meta name="viewport" content="width=device-width, initial-scale=1.0">
+    <title>QR Attendance System</title>
+    <link href="https://cdn.jsdelivr.net/npm/bootstrap@5.3.0/dist/css/bootstrap.min.css" rel="stylesheet">
+    <link rel="stylesheet" href="https://cdn.jsdelivr.net/npm/bootstrap-icons@1.10.0/font/bootstrap-icons.css">
+    <link href="https://fonts.googleapis.com/css2?family=Poppins:wght@300;400;500;600;700&display=swap" rel="stylesheet">
+    <style>
+        :root {
+            --primary-color: #167c16;
+            --secondary-color: #aebe22;
+            --accent-color: #0a5e0a;
+            --light-green: #e8f5e8;
+            --dark-green: #0c4d0c;
+        }
+
+        body {
+            font-family: 'Poppins', sans-serif;
+            background-color: #f8f9fc;
+            min-height: 100vh;
+        }
+
+        .navbar {
+            background: white;
+            box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
+            padding: 15px 0;
+            transition: all 0.3s ease;
+        }
+
+        .navbar.scrolled {
+            padding: 10px 0;
+        }
+
+        .navbar-brand {
+            font-weight: 700;
+            color: var(--primary-color) !important;
+            font-size: 1.5rem;
+        }
+
+        .nav-link {
+            color: #333 !important;
+            font-weight: 500;
+            padding: 8px 16px !important;
+            transition: color 0.3s;
+        }
+
+        .nav-link:hover {
+            color: var(--primary-color) !important;
+        }
+
+        .hero-section {
+            background: linear-gradient(135deg, var(--primary-color) 0%, var(--secondary-color) 100%);
+            color: white;
+            padding: 120px 0 80px;
+            position: relative;
+            overflow: hidden;
+        }
+
+        .hero-section::before {
+            content: '';
+            position: absolute;
+            top: 0;
+            left: 0;
+            right: 0;
+            bottom: 0;
+            background: url('assets/images/ACbackground.png') no-repeat center center/cover;
+            opacity: 0.1;
+        }
+
+        .hero-title {
+            font-size: 3rem;
+            font-weight: 700;
+            margin-bottom: 1.5rem;
+            text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.2);
+        }
+
+        .hero-subtitle {
+            font-size: 1.25rem;
+            opacity: 0.95;
+            margin-bottom: 2rem;
+            line-height: 1.6;
+        }
+
+        .features-section {
+            padding: 80px 0;
+            background-color: var(--light-green);
+        }
+
+        .section-title {
+            color: var(--dark-green);
+            font-weight: 700;
+            margin-bottom: 3rem;
+            text-align: center;
+        }
+
+        .feature-card {
+            background: white;
+            border: none;
+            border-radius: 15px;
+            padding: 30px;
+            text-align: center;
+            box-shadow: 0 5px 20px rgba(0, 0, 0, 0.05);
+            transition: all 0.3s ease;
+            height: 100%;
+        }
+
+        .feature-card:hover {
+            transform: translateY(-10px);
+            box-shadow: 0 15px 30px rgba(0, 0, 0, 0.1);
+        }
+
+        .feature-icon {
+            width: 80px;
+            height: 80px;
+            background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
+            border-radius: 50%;
+            display: flex;
+            align-items: center;
+            justify-content: center;
+            margin: 0 auto 25px;
+            color: white;
+            font-size: 2rem;
+        }
+
+        .feature-title {
+            color: var(--dark-green);
+            font-weight: 600;
+            margin-bottom: 15px;
+        }
+
+        .stats-section {
+            padding: 60px 0;
+            background: white;
+        }
+
+        .stat-card {
+            text-align: center;
+            padding: 30px 20px;
+        }
+
+        .stat-number {
+            font-size: 3rem;
+            font-weight: 700;
+            color: var(--primary-color);
+            margin-bottom: 10px;
+            line-height: 1;
+        }
+
+        .stat-label {
+            color: #666;
+            font-size: 1rem;
+            text-transform: uppercase;
+            letter-spacing: 1px;
+        }
+
+        .about-section {
+            padding: 80px 0;
+            background-color: #f8f9fa;
+        }
+
+        .ac-logo {
+            max-width: 300px;
+            height: auto;
+            margin-bottom: 30px;
+        }
+
+        .btn-primary {
+            background: var(--primary-color);
+            border: none;
+            padding: 12px 30px;
+            border-radius: 50px;
+            font-weight: 600;
+            transition: all 0.3s ease;
+        }
+
+        .btn-primary:hover {
+            background: var(--dark-green);
+            transform: translateY(-2px);
+            box-shadow: 0 5px 15px rgba(10, 94, 10, 0.3);
+        }
+
+        .btn-outline-primary {
+            color: var(--primary-color);
+            border: 2px solid var(--primary-color);
+            background: transparent;
+            padding: 12px 30px;
+            border-radius: 50px;
+            font-weight: 600;
+            transition: all 0.3s ease;
+        }
+
+        .btn-outline-primary:hover {
+            background: var(--primary-color);
+            color: white;
+            transform: translateY(-2px);
+        }
+
+        .footer {
+            background: var(--dark-green);
+            color: white;
+            padding: 40px 0 20px;
+        }
+
+        .footer-links a {
+            color: rgba(255, 255, 255, 0.8);
+            text-decoration: none;
+            transition: color 0.3s;
+        }
+
+        .footer-links a:hover {
+            color: white;
+        }
+
+        .footer-links li {
+            margin-bottom: 10px;
+        }
+
+        .copyright {
+            border-top: 1px solid rgba(255, 255, 255, 0.1);
+            padding-top: 20px;
+            margin-top: 40px;
+        }
+
+        @media (max-width: 768px) {
+            .hero-title {
+                font-size: 2.2rem;
+            }
+
+            .hero-subtitle {
+                font-size: 1.1rem;
+            }
+
+            .hero-section {
+                padding: 100px 0 60px;
+            }
+
+            .stat-number {
+                font-size: 2.5rem;
+            }
+        }
+
+        @media (max-width: 576px) {
+            .hero-title {
+                font-size: 1.8rem;
+            }
+
+            .navbar-brand {
+                font-size: 1.2rem;
+            }
+        }
+
+        @keyframes fadeInUp {
+            from {
+                opacity: 0;
+                transform: translateY(30px);
+            }
+            to {
+                opacity: 1;
+                transform: translateY(0);
+            }
+        }
+
+        .animate-fade-in-up {
+            animation: fadeInUp 0.6s ease-out forwards;
+        }
+    </style>
+</head>
+<body>
+<nav class="navbar navbar-expand-lg navbar-light fixed-top">
+    <div class="container">
+        <a class="navbar-brand d-flex align-items-center" href="#">
+            <span>QR Attendance System</span>
+        </a>
+        <button class="navbar-toggler" type="button" data-bs-toggle="collapse" data-bs-target="#navbarNav">
+            <span class="navbar-toggler-icon"></span>
+        </button>
+        <div class="collapse navbar-collapse" id="navbarNav">
+            <ul class="navbar-nav ms-auto">
+                <li class="nav-item">
+                    <a class="nav-link" href="#features">Features</a>
+                </li>
+                <li class="nav-item">
+                    <a class="nav-link" href="#about">About</a>
+                </li>
+                <li class="nav-item ms-2">
+                    <a href="auth/login.php" class="btn btn-primary">
+                        <i class="bi bi-box-arrow-in-right me-2"></i>Login
+                    </a>
+                </li>
+            </ul>
+        </div>
+    </div>
+</nav>
+
+<section class="hero-section">
+    <div class="container">
+        <div class="row align-items-center">
+            <div class="col-lg-6">
+                <h1 class="hero-title animate-fade-in-up">QR Attendance Management</h1>
+                <p class="hero-subtitle animate-fade-in-up" style="animation-delay: 0.1s;">
+                    A modern, efficient, and contactless attendance system using QR code technology
+                    to streamline every campus check-in.
+                </p>
+                <div class="animate-fade-in-up" style="animation-delay: 0.2s;">
+                    <a href="auth/login.php" class="btn btn-primary me-3">
+                        <i class="bi bi-box-arrow-in-right me-2"></i>Get Started
+                    </a>
+                    <a href="#features" class="btn btn-outline-primary text-white border-white">
+                        <i class="bi bi-info-circle me-2"></i>Learn More
+                    </a>
+                </div>
+            </div>
+            <div class="col-lg-6">
+                <div class="text-center mt-5 mt-lg-0">
+                    <img src="assets/images/aldersgate.png"
+                         alt="Campus Logo"
+                         class="img-fluid animate-fade-in-up"
+                         style="max-height: 300px; animation-delay: 0.3s;">
+                </div>
+            </div>
+        </div>
+    </div>
+</section>
+
+<section class="stats-section">
+    <div class="container">
+        <div class="row text-center">
+            <div class="col-md-3 col-6 mb-4">
+                <div class="stat-card">
+                    <div class="stat-number"><?= sanitize($activeStudents) ?></div>
+                    <div class="stat-label">Active Students</div>
+                </div>
+            </div>
+            <div class="col-md-3 col-6 mb-4">
+                <div class="stat-card">
+                    <div class="stat-number"><?= sanitize($courseCount) ?></div>
+                    <div class="stat-label">Courses</div>
+                </div>
+            </div>
+            <div class="col-md-3 col-6 mb-4">
+                <div class="stat-card">
+                    <div class="stat-number"><?= sanitize($todayCheckins) ?></div>
+                    <div class="stat-label">Today's Check-ins</div>
+                </div>
+            </div>
+            <div class="col-md-3 col-6 mb-4">
+                <div class="stat-card">
+                    <div class="stat-number">99.9%</div>
+                    <div class="stat-label">Accuracy Rate</div>
+                </div>
+            </div>
+        </div>
+    </div>
+</section>
+
+<section id="features" class="features-section">
+    <div class="container">
+        <h2 class="section-title">Key Features</h2>
+        <div class="row">
+            <div class="col-lg-4 col-md-6 mb-4">
+                <div class="feature-card animate-fade-in-up">
+                    <div class="feature-icon">
+                        <i class="bi bi-qr-code-scan"></i>
+                    </div>
+                    <h4 class="feature-title">QR Code Attendance</h4>
+                    <p class="text-muted mb-0">
+                        Quick and contactless attendance marking with unique student QR codes.
+                    </p>
+                </div>
+            </div>
+            <div class="col-lg-4 col-md-6 mb-4">
+                <div class="feature-card animate-fade-in-up" style="animation-delay: 0.1s;">
+                    <div class="feature-icon">
+                        <i class="bi bi-graph-up"></i>
+                    </div>
+                    <h4 class="feature-title">Real-time Analytics</h4>
+                    <p class="text-muted mb-0">
+                        Comprehensive dashboards and detailed attendance reports.
+                    </p>
+                </div>
+            </div>
+            <div class="col-lg-4 col-md-6 mb-4">
+                <div class="feature-card animate-fade-in-up" style="animation-delay: 0.2s;">
+                    <div class="feature-icon">
+                        <i class="bi bi-people-fill"></i>
+                    </div>
+                    <h4 class="feature-title">Student Management</h4>
+                    <p class="text-muted mb-0">
+                        Manage profiles, courses, and departments with bulk import.
+                    </p>
+                </div>
+            </div>
+            <div class="col-lg-4 col-md-6 mb-4">
+                <div class="feature-card animate-fade-in-up">
+                    <div class="feature-icon">
+                        <i class="bi bi-calendar-event"></i>
+                    </div>
+                    <h4 class="feature-title">Activity Scheduling</h4>
+                    <p class="text-muted mb-0">
+                        Schedule classes, seminars, and events with specific time slots.
+                    </p>
+                </div>
+            </div>
+            <div class="col-lg-4 col-md-6 mb-4">
+                <div class="feature-card animate-fade-in-up" style="animation-delay: 0.1s;">
+                    <div class="feature-icon">
+                        <i class="bi bi-bell-fill"></i>
+                    </div>
+                    <h4 class="feature-title">Smart Notifications</h4>
+                    <p class="text-muted mb-0">
+                        Automated alerts for attendance, events, and announcements.
+                    </p>
+                </div>
+            </div>
+            <div class="col-lg-4 col-md-6 mb-4">
+                <div class="feature-card animate-fade-in-up" style="animation-delay: 0.2s;">
+                    <div class="feature-icon">
+                        <i class="bi bi-shield-check"></i>
+                    </div>
+                    <h4 class="feature-title">Secure & Reliable</h4>
+                    <p class="text-muted mb-0">
+                        Role-based access control with enterprise-grade security.
+                    </p>
+                </div>
+            </div>
+        </div>
+    </div>
+</section>
+
+<section id="about" class="about-section">
+    <div class="container">
+        <div class="row align-items-center">
+            <div class="col-lg-6 text-center mb-5 mb-lg-0">
+                <img src="assets/images/aldersgate.png" alt="Campus Logo" class="ac-logo">
+                <h3 class="mb-3" style="color: var(--dark-green);">Campus Ready</h3>
+                <p class="text-muted mb-4">
+                    Built for institutions that need reliable QR-based attendance tracking.
+                </p>
+            </div>
+            <div class="col-lg-6">
+                <h2 class="mb-4" style="color: var(--dark-green);">About This System</h2>
+                <p class="mb-4">
+                    Crafted to streamline attendance across departments and activities,
+                    this platform combines QR scanning, manual overrides, and analytics in a single hub.
+                </p>
+                <div class="row mb-4">
+                    <div class="col-md-6 mb-3">
+                        <div class="d-flex align-items-start">
+                            <i class="bi bi-check-circle-fill text-success me-3 mt-1"></i>
+                            <div>
+                                <h6 class="mb-1">Contactless Operation</h6>
+                                <small class="text-muted">No physical contact required</small>
+                            </div>
+                        </div>
+                    </div>
+                    <div class="col-md-6 mb-3">
+                        <div class="d-flex align-items-start">
+                            <i class="bi bi-check-circle-fill text-success me-3 mt-1"></i>
+                            <div>
+                                <h6 class="mb-1">Real-time Tracking</h6>
+                                <small class="text-muted">Live attendance monitoring</small>
+                            </div>
+                        </div>
+                    </div>
+                    <div class="col-md-6 mb-3">
+                        <div class="d-flex align-items-start">
+                            <i class="bi bi-check-circle-fill text-success me-3 mt-1"></i>
+                            <div>
+                                <h6 class="mb-1">Easy Integration</h6>
+                                <small class="text-muted">Works with existing systems</small>
+                            </div>
+                        </div>
+                    </div>
+                    <div class="col-md-6 mb-3">
+                        <div class="d-flex align-items-start">
+                            <i class="bi bi-check-circle-fill text-success me-3 mt-1"></i>
+                            <div>
+                                <h6 class="mb-1">Mobile Ready</h6>
+                                <small class="text-muted">Accessible on all devices</small>
+                            </div>
+                        </div>
+                    </div>
+                </div>
+                <div>
+                    <a href="auth/login.php" class="btn btn-primary">
+                        <i class="bi bi-box-arrow-in-right me-2"></i>Access System
+                    </a>
+                </div>
+            </div>
+        </div>
+    </div>
+</section>
+
+<footer class="footer">
+    <div class="container">
+        <div class="row">
+            <div class="col-lg-6 mb-4">
+                <h5 class="mb-3">QR Attendance System</h5>
+                <p class="mb-4" style="color: rgba(255, 255, 255, 0.8);">
+                    A comprehensive solution for modernizing attendance tracking with QR code technology.
+                </p>
+                <div class="d-flex gap-3">
+                    <a href="https://www.facebook.com/imjohnlloyd26/" class="text-white"><i class="bi bi-facebook"></i></a>
+                    <a href="https://www.instagram.com/im_johnlloyd6/" class="text-white"><i class="bi bi-instagram"></i></a>
+                </div>
+            </div>
+            <div class="col-lg-3 col-md-6 mb-4">
+                <h5 class="mb-3">Quick Links</h5>
+                <ul class="list-unstyled footer-links">
+                    <li><a href="#features">Features</a></li>
+                    <li><a href="#about">About</a></li>
+                    <li><a href="auth/login.php">Login</a></li>
+                </ul>
+            </div>
+            <div class="col-lg-3 col-md-6 mb-4">
+                <h5 class="mb-3">Contact Info</h5>
+                <ul class="list-unstyled footer-links">
+                    <li class="mb-2">
+                        <i class="bi bi-geo-alt me-2"></i>
+                        Solano, Nueva Vizcaya
+                    </li>
+                    <li class="mb-2">
+                        <i class="bi bi-envelope me-2"></i>
+                        johnlloydsumawang04@gmail.com
+                    </li>
+                </ul>
+            </div>
+        </div>
+        <div class="row copyright">
+            <div class="col-md-6">
+                <p class="mb-0" style="color: rgba(255, 255, 255, 0.6);">
+                    &copy; <?= date('Y') ?> QR Attendance System.
+                </p>
+            </div>
+            <div class="col-md-6 text-md-end">
+                <p class="mb-0" style="color: rgba(255, 255, 255, 0.6);">
+                    Programmed by <span class="text-white">John Lloyd Sumawang</span>
+                </p>
+            </div>
+        </div>
+    </div>
+</footer>
+
+<script src="https://cdn.jsdelivr.net/npm/bootstrap@5.3.0/dist/js/bootstrap.bundle.min.js"></script>
+<script>
+document.addEventListener('DOMContentLoaded', function() {
+    document.querySelectorAll('a[href^="#"]').forEach(anchor => {
+        anchor.addEventListener('click', function(e) {
+            const targetId = this.getAttribute('href');
+            if (!targetId || targetId === '#') {
+                return;
+            }
+            e.preventDefault();
+            const targetElement = document.querySelector(targetId);
+            if (targetElement) {
+                window.scrollTo({
+                    top: targetElement.offsetTop - 80,
+                    behavior: 'smooth'
+                });
+            }
+        });
+    });
+
+    const navbar = document.querySelector('.navbar');
+    window.addEventListener('scroll', function() {
+        if (window.scrollY > 50) {
+            navbar.classList.add('scrolled', 'shadow');
+        } else {
+            navbar.classList.remove('scrolled', 'shadow');
+        }
+    });
+
+    const animateOnScroll = function() {
+        const elements = document.querySelectorAll('.animate-fade-in-up');
+        elements.forEach(element => {
+            const elementTop = element.getBoundingClientRect().top;
+            const elementVisible = 150;
+            if (elementTop < window.innerHeight - elementVisible) {
+                element.style.opacity = '1';
+                element.style.transform = 'translateY(0)';
+            }
+        });
+    };
+
+    document.querySelectorAll('.animate-fade-in-up').forEach(el => {
+        el.style.opacity = '0';
+        el.style.transform = 'translateY(30px)';
+        el.style.transition = 'opacity 0.6s ease, transform 0.6s ease';
+    });
+
+    window.addEventListener('load', animateOnScroll);
+    window.addEventListener('scroll', animateOnScroll);
+});
+</script>
+</body>
+</html>
diff --git a/src/qr/generate.php b/src/qr/generate.php
new file mode 100644
index 0000000..338fd84
--- /dev/null
+++ b/src/qr/generate.php
@@ -0,0 +1,57 @@
+<?php
+require __DIR__ . '/../includes/bootstrap.php';
+
+$token = trim($_GET['token'] ?? '');
+if ($token === '') {
+    http_response_code(400);
+    echo 'Missing token.';
+    exit;
+}
+
+$filename = 'qr-' . preg_replace('/[^a-zA-Z0-9_-]/', '', $token) . '.png';
+$download = filter_var($_GET['download'] ?? $_GET['dl'] ?? null, FILTER_VALIDATE_BOOLEAN);
+$provider = config('qr.provider', 'auto');
+
+$imageData = null;
+$useLocal = extension_loaded('gd') && is_readable(__DIR__ . '/../includes/phpqrcode/qrlib.php');
+
+if ($provider === 'phpqrcode' || ($provider === 'auto' && $useLocal)) {
+    require_once __DIR__ . '/../includes/phpqrcode/qrlib.php';
+    ob_start();
+    QRcode::png($token, null, QR_ECLEVEL_M, 6, 2);
+    $imageData = ob_get_clean();
+} else {
+    $size = config('qr.goqr_size', '300x300');
+    if (!preg_match('/^\d+x\d+$/', $size)) {
+        $size = '300x300';
+    }
+    $goqrUrl = sprintf(
+        'https://api.qrserver.com/v1/create-qr-code/?size=%s&data=%s',
+        $size,
+        rawurlencode($token)
+    );
+    $context = stream_context_create([
+        'http' => [
+            'timeout' => 10,
+        ],
+        'ssl' => [
+            'verify_peer' => true,
+            'verify_peer_name' => true,
+        ],
+    ]);
+    $imageData = @file_get_contents($goqrUrl, false, $context);
+    if ($imageData === false) {
+        http_response_code(502);
+        echo 'Unable to generate QR code. Please try again later.';
+        exit;
+    }
+}
+
+header('Content-Type: image/png');
+header(sprintf(
+    'Content-Disposition: %s; filename="%s"',
+    $download ? 'attachment' : 'inline',
+    $filename
+));
+
+echo $imageData;
diff --git a/submit.zip b/submit.zip
new file mode 100644
index 0000000..f43d80c
Binary files /dev/null and b/submit.zip differ
diff --git a/system.json b/system.json
new file mode 100644
index 0000000..616b60a
--- /dev/null
+++ b/system.json
@@ -0,0 +1,402 @@
+{
+  "database": {
+    "schema": "attendance_system",
+    "source": "src-backup/attendance_system.sql",
+    "engine": "MariaDB 10.4.32",
+    "tables": [
+      {
+        "name": "activities",
+        "purpose": "Defines school activities/events that require attendance tracking and can be scoped to all students, specific courses, or departments.",
+        "primary_key": "id",
+        "important_fields": [
+          "name",
+          "date",
+          "time_in",
+          "time_out",
+          "required_students",
+          "course_id",
+          "department_id",
+          "status"
+        ],
+        "relationships": [
+          {
+            "column": "created_by",
+            "references": "users.id",
+            "on_delete": "RESTRICT"
+          },
+          {
+            "column": "course_id",
+            "references": "courses.id",
+            "on_delete": "SET NULL"
+          },
+          {
+            "column": "department_id",
+            "references": "departments.id",
+            "on_delete": "SET NULL"
+          }
+        ]
+      },
+      {
+        "name": "attendance",
+        "purpose": "Records per-student participation in a given activity, capturing time-in/out, status, and notes.",
+        "primary_key": "id",
+        "important_fields": [
+          "student_id",
+          "activity_id",
+          "time_in",
+          "time_out",
+          "status"
+        ],
+        "relationships": [
+          {
+            "column": "student_id",
+            "references": "students.id",
+            "on_delete": "CASCADE"
+          },
+          {
+            "column": "activity_id",
+            "references": "activities.id",
+            "on_delete": "CASCADE"
+          }
+        ]
+      },
+      {
+        "name": "attendance_logs",
+        "purpose": "Audit trail for changes to attendance entries (time in/out, manual overrides, status changes).",
+        "primary_key": "id",
+        "important_fields": [
+          "attendance_id",
+          "action",
+          "old_value",
+          "new_value",
+          "changed_by",
+          "changed_at"
+        ],
+        "relationships": [
+          {
+            "column": "attendance_id",
+            "references": "attendance.id",
+            "on_delete": "CASCADE"
+          },
+          {
+            "column": "changed_by",
+            "references": "users.id",
+            "on_delete": "RESTRICT"
+          }
+        ]
+      },
+      {
+        "name": "attendance_records",
+        "purpose": "Aggregated attendance summary per student/course combination when manual recording (outside activities) is needed.",
+        "primary_key": "id",
+        "important_fields": [
+          "student_id",
+          "course_id",
+          "status",
+          "date_recorded",
+          "created_by"
+        ],
+        "relationships": [
+          {
+            "column": "student_id",
+            "references": "students.id",
+            "on_delete": "RESTRICT"
+          },
+          {
+            "column": "course_id",
+            "references": "courses.id",
+            "on_delete": "RESTRICT"
+          },
+          {
+            "column": "created_by",
+            "references": "users.id",
+            "on_delete": "RESTRICT"
+          }
+        ]
+      },
+      {
+        "name": "courses",
+        "purpose": "Catalog of academic programs, linked to departments and used to scope activities and students.",
+        "primary_key": "id",
+        "important_fields": [
+          "code",
+          "name",
+          "department_id",
+          "duration_years",
+          "status"
+        ],
+        "relationships": [
+          {
+            "column": "department_id",
+            "references": "departments.id",
+            "on_delete": "RESTRICT"
+          }
+        ]
+      },
+      {
+        "name": "departments",
+        "purpose": "Defines school departments under which courses and students are organized.",
+        "primary_key": "id",
+        "important_fields": [
+          "code",
+          "name",
+          "school_id",
+          "status"
+        ],
+        "relationships": [
+          {
+            "column": "school_id",
+            "references": "schools.id",
+            "on_delete": "RESTRICT"
+          }
+        ]
+      },
+      {
+        "name": "genders",
+        "purpose": "Lookup table for student gender classifications.",
+        "primary_key": "id",
+        "important_fields": [
+          "code",
+          "name"
+        ]
+      },
+      {
+        "name": "schools",
+        "purpose": "Stores root institution profile information (name, address, contacts).",
+        "primary_key": "id",
+        "important_fields": [
+          "code",
+          "name",
+          "address",
+          "contact_number",
+          "status"
+        ]
+      },
+      {
+        "name": "students",
+        "purpose": "Master list of students with QR credentials, demographic data, and enrollment metadata.",
+        "primary_key": "id",
+        "important_fields": [
+          "student_id",
+          "qr_code",
+          "full_name",
+          "gender_id",
+          "year_level",
+          "course_id",
+          "department_id",
+          "school_id",
+          "status"
+        ],
+        "relationships": [
+          {
+            "column": "gender_id",
+            "references": "genders.id",
+            "on_delete": "RESTRICT"
+          },
+          {
+            "column": "course_id",
+            "references": "courses.id",
+            "on_delete": "RESTRICT"
+          },
+          {
+            "column": "department_id",
+            "references": "departments.id",
+            "on_delete": "RESTRICT"
+          },
+          {
+            "column": "school_id",
+            "references": "schools.id",
+            "on_delete": "RESTRICT"
+          }
+        ]
+      },
+      {
+        "name": "system_settings",
+        "purpose": "Key-value configuration store for system-wide toggles (branding, cutoff times, etc.).",
+        "primary_key": "id",
+        "important_fields": [
+          "setting_key",
+          "setting_value",
+          "description",
+          "updated_by",
+          "updated_at"
+        ],
+        "relationships": [
+          {
+            "column": "updated_by",
+            "references": "users.id",
+            "on_delete": "SET NULL"
+          }
+        ]
+      },
+      {
+        "name": "users",
+        "purpose": "System user accounts (admins/teachers) with authentication credentials and contact info.",
+        "primary_key": "id",
+        "important_fields": [
+          "username",
+          "password",
+          "role",
+          "full_name",
+          "email",
+          "status"
+        ]
+      }
+    ]
+  },
+  "systems": [
+    {
+      "name": "Admin Panel",
+      "path": "src-backup/admin",
+      "purpose": "Web dashboard for managing students, activities, users, and attendance reports.",
+      "entry_points": [
+        "dashboard.php",
+        "manage_students.php",
+        "manage_activities.php",
+        "attendance.php",
+        "users.php",
+        "reports.php"
+      ],
+      "primary_tables": [
+        "students",
+        "activities",
+        "attendance",
+        "users"
+      ],
+      "dependencies": [
+        "auth/login.php",
+        "includes/database.php",
+        "includes/auth.php"
+      ]
+    },
+    {
+      "name": "Public Portal",
+      "path": "src-backup/index.php",
+      "purpose": "Front-facing landing/entry page that ties into assets/ for styling and qr/ for QR workflows.",
+      "primary_tables": [
+        "students",
+        "attendance",
+        "activities"
+      ],
+      "dependencies": [
+        "assets/css|js",
+        "auth/login.php",
+        "api/*"
+      ]
+    },
+    {
+      "name": "API Endpoints",
+      "path": "src-backup/api",
+      "purpose": "AJAX-style endpoints for scanning QR codes, manual attendance entry, and fetching reference data.",
+      "key_scripts": [
+        "scan_qr.php",
+        "manual_entry.php",
+        "get_courses.php",
+        "get_departments.php",
+        "export_activities.php",
+        "export_reports.php"
+      ],
+      "primary_tables": [
+        "students",
+        "attendance",
+        "activities",
+        "courses",
+        "departments"
+      ],
+      "dependencies": [
+        "includes/database.php",
+        "includes/config.php"
+      ]
+    },
+    {
+      "name": "Authentication",
+      "path": "src-backup/auth",
+      "purpose": "Session handling (login/logout) that protects admin and API surfaces.",
+      "key_scripts": [
+        "login.php",
+        "logout.php"
+      ],
+      "primary_tables": [
+        "users"
+      ],
+      "dependencies": [
+        "includes/auth.php",
+        "includes/database.php"
+      ]
+    },
+    {
+      "name": "Shared Includes",
+      "path": "src-backup/includes",
+      "purpose": "Reusable bootstrap/config files (database connector, auth helper, headers/footers, QR library).",
+      "key_scripts": [
+        "database.php",
+        "config.php",
+        "auth.php",
+        "header.php",
+        "footer.php"
+      ],
+      "primary_tables": [
+        "users",
+        "students",
+        "activities"
+      ]
+    },
+    {
+      "name": "QR Utilities",
+      "path": "src-backup/qr",
+      "purpose": "Handles QR code generation, printing, and cleanup jobs tied to student credentials.",
+      "key_scripts": [
+        "generate.php",
+        "print.php",
+        "cleanup_qrcodes.php",
+        "simple_cleanup.php"
+      ],
+      "primary_tables": [
+        "students"
+      ],
+      "dependencies": [
+        "includes/phpqrcode",
+        "assets/image"
+      ]
+    },
+    {
+      "name": "Reporting",
+      "path": "src-backup/reports",
+      "purpose": "Generates printable reports for attendance summaries and student listings.",
+      "key_scripts": [
+        "print_report.php",
+        "students_report.php"
+      ],
+      "primary_tables": [
+        "attendance",
+        "students",
+        "activities",
+        "courses"
+      ]
+    },
+    {
+      "name": "Assets",
+      "path": "src-backup/assets",
+      "purpose": "Static resources (CSS/JS/images) shared by public and admin interfaces.",
+      "subdirectories": [
+        "css",
+        "js",
+        "image"
+      ]
+    },
+    {
+      "name": "Setup & Diagnostics",
+      "path": "src-backup/setup.php | src-backup/test_connection.php | src-backup/test_db.php",
+      "purpose": "Environment bootstrap scripts used to verify database connectivity and initial configuration.",
+      "primary_tables": [
+        "system_settings",
+        "users"
+      ]
+    },
+    {
+      "name": "Exports",
+      "path": "src-backup/exports",
+      "purpose": "Designated output directory (currently empty) where generated CSV/PDF exports are saved by API/export scripts."
+    }
+  ]
+}