<?php
// Start session
session_start();
// Include database configuration
require_once '../config/database.php';
// Check if user is logged in and has student role
if (!isset($_SESSION['user_id']) || $_SESSION['role'] !== 'student') {
header('Location: ../login.php');
exit;
}
$user_id = $_SESSION['user_id'];
// Process exam submission
if ($_SERVER['REQUEST_METHOD'] === 'POST' && isset($_POST['submit_answers'])) {
// Get student exam ID
$student_exam_id = isset($_POST['student_exam_id']) ? intval($_POST['student_exam_id']) : 0;
if (!$student_exam_id) {
$_SESSION['error_message'] = "Invalid exam session.";
header('Location: exams.php');
exit;
}
// Get exam details
$exam_query = "SELECT se.*, es.passing_percentage, es.id as exam_id
FROM student_exams se
JOIN exam_schedules es ON se.exam_id = es.id
WHERE se.id = ? AND se.user_id = ?";
$stmt = $conn->prepare($exam_query);
$stmt->bind_param("ii", $student_exam_id, $user_id);
$stmt->execute();
$result = $stmt->get_result();
if ($result->num_rows === 0) {
$_SESSION['error_message'] = "Exam session not found or not authorized.";
header('Location: exams.php');
exit;
}
$exam_data = $result->fetch_assoc();
$exam_id = $exam_data['exam_id'];
// Store answers if provided
$total_questions = 0;
$correct_answers = 0;
$total_possible_marks = 0;
$earned_marks = 0;
// Process multiple choice and true/false answers
if (isset($_POST['answer']) && is_array($_POST['answer'])) {
foreach ($_POST['answer'] as $question_id => $selected_option_id) {
// Get question details
$question_query = "SELECT * FROM questions WHERE id = ?";
$stmt = $conn->prepare($question_query);
$stmt->bind_param("i", $question_id);
$stmt->execute();
$question_result = $stmt->get_result();
if ($question_result->num_rows > 0) {
$question = $question_result->fetch_assoc();
$total_questions++;
$total_possible_marks += $question['marks'];
// Check if the answer is correct
$is_correct = 0;
if ($question['question_type'] === 'multiple_choice' || $question['question_type'] === 'true_false') {
// Get the correct option ID
$option_query = "SELECT id FROM question_options WHERE question_id = ? AND is_correct = 1";
$stmt = $conn->prepare($option_query);
$stmt->bind_param("i", $question_id);
$stmt->execute();
$option_result = $stmt->get_result();
if ($option_result->num_rows > 0) {
$correct_option = $option_result->fetch_assoc();
$is_correct = ($selected_option_id == $correct_option['id']) ? 1 : 0;
if ($is_correct) {
$correct_answers++;
$earned_marks += $question['marks'];
}
}
}
// Save the answer
$insert_answer = "INSERT INTO student_exam_answers
(student_exam_id, question_id, selected_option_id, is_correct)
VALUES (?, ?, ?, ?)";
$stmt = $conn->prepare($insert_answer);
$stmt->bind_param("iiis", $student_exam_id, $question_id, $selected_option_id, $is_correct);
$stmt->execute();
}
}
}
// Process text answers (short answer and essay)
if (isset($_POST['text_answer']) && is_array($_POST['text_answer'])) {
foreach ($_POST['text_answer'] as $question_id => $answer_text) {
if (!empty($answer_text)) {
// Get question details
$question_query = "SELECT * FROM questions WHERE id = ?";
$stmt = $conn->prepare($question_query);
$stmt->bind_param("i", $question_id);
$stmt->execute();
$question_result = $stmt->get_result();
if ($question_result->num_rows > 0) {
$question = $question_result->fetch_assoc();
$total_questions++;
$total_possible_marks += $question['marks'];
// Save the answer (marking these as pending until manual grading)
$is_correct = 'pending';
$insert_answer = "INSERT INTO student_exam_answers
(student_exam_id, question_id, answer_text, is_correct)
VALUES (?, ?, ?, ?)";
$stmt = $conn->prepare($insert_answer);
$stmt->bind_param("iiss", $student_exam_id, $question_id, $answer_text, $is_correct);
$stmt->execute();
}
}
}
}
// Calculate percentage
$percentage = 0;
if ($total_possible_marks > 0) {
$percentage = ($earned_marks / $total_possible_marks) * 100;
}
// Determine if passed based on passing percentage
$status = ($percentage >= $exam_data['passing_percentage']) ? 'passed' : 'failed';
// If there are pending answers (essays/short answers), mark as completed instead of pass/fail
$has_pending_query = "SELECT COUNT(*) as pending_count FROM student_exam_answers
WHERE student_exam_id = ? AND is_correct = 'pending'";
$stmt = $conn->prepare($has_pending_query);
$stmt->bind_param("i", $student_exam_id);
$stmt->execute();
$pending_result = $stmt->get_result()->fetch_assoc();
if ($pending_result['pending_count'] > 0) {
$status = 'completed'; // Will need manual grading
}
// Update the student exam record
$update_exam = "UPDATE student_exams SET
status = ?,
end_time = NOW(),
total_score = ?,
percentage = ?
WHERE id = ?";
$stmt = $conn->prepare($update_exam);
$stmt->bind_param("sddi", $status, $earned_marks, $percentage, $student_exam_id);
if ($stmt->execute()) {
$_SESSION['success_message'] = "Exam submitted successfully.";
header('Location: exam_results.php?id=' . $exam_id);
exit;
} else {
$_SESSION['error_message'] = "Failed to submit exam: " . $conn->error;
}
}
// Check if exam ID is provided
if (!isset($_GET['id']) && !isset($_GET['exam_id'])) {
$_SESSION['error_message'] = "No exam specified.";
header('Location: scheduled-exams.php');
exit;
}
// Get exam ID from either 'id' or 'exam_id' parameter
$exam_id = isset($_GET['id']) ? intval($_GET['id']) : intval($_GET['exam_id']);
$is_reattempt = isset($_GET['reattempt']) && $_GET['reattempt'] == 1;
// Check if the student has already completed this exam
$check_completion_query = "SELECT id, status, attempt_date FROM student_exams
WHERE user_id = ? AND exam_id = ?
ORDER BY attempt_date DESC LIMIT 1";
$stmt = $conn->prepare($check_completion_query);
$stmt->bind_param("ii", $user_id, $exam_id);
$stmt->execute();
$completion_result = $stmt->get_result();
if ($completion_result->num_rows > 0) {
$completed_exam = $completion_result->fetch_assoc();
// If this is a passed exam, redirect to results
if ($completed_exam['status'] == 'passed' && !$is_reattempt) {
$_SESSION['error_message'] = "You have already passed this exam. You cannot retake it.";
header('Location: exam-results.php?id=' . $exam_id);
exit;
}
// If this is a failed exam and not a reattempt request, check the timeframe
if ($completed_exam['status'] == 'failed' && !$is_reattempt) {
$attempt_date = new DateTime($completed_exam['attempt_date']);
$current_date = new DateTime();
$days_passed = $current_date->diff($attempt_date)->days;
if ($days_passed < 7) {
$_SESSION['error_message'] = "You must wait 7 days after a failed attempt before retaking the exam. " .
"You can retake this exam in " . (7 - $days_passed) . " days.";
header('Location: exam-results.php?id=' . $exam_id);
exit;
}
// Check if payment has been made for retake
$payment_query = "SELECT * FROM payments
WHERE user_id = ? AND exam_id = ? AND payment_type = 'reattempt_fee'
AND status = 'completed' AND created_at > ?";
$payment_stmt = $conn->prepare($payment_query);
$one_week_ago = date('Y-m-d H:i:s', strtotime('-7 days'));
$payment_stmt->bind_param("iis", $user_id, $exam_id, $one_week_ago);
$payment_stmt->execute();
$payment_result = $payment_stmt->get_result();
if ($payment_result->num_rows == 0) {
$_SESSION['error_message'] = "You need to pay the re-attempt fee before taking this exam again.";
header('Location: exam-results.php?id=' . $exam_id);
exit;
}
}
}
// Get exam details
$exam_query = "SELECT es.*, c.title as course_title,
(SELECT COUNT(*) FROM exam_question_maps WHERE exam_id = es.id) as question_count
FROM exam_schedules es
JOIN courses c ON es.course_id = c.id
WHERE es.id = ? AND es.is_active = 1";
$stmt = $conn->prepare($exam_query);
$stmt->bind_param("i", $exam_id);
$stmt->execute();
$exam_result = $stmt->get_result();
if ($exam_result->num_rows === 0) {
$_SESSION['error_message'] = "Exam not found or not active.";
header('Location: scheduled-exams.php');
exit;
}
$exam = $exam_result->fetch_assoc();
// Check if user is enrolled in the course
$enrollment_query = "SELECT * FROM enrollments
WHERE user_id = ? AND course_id = ? AND status = 'completed'";
$stmt = $conn->prepare($enrollment_query);
$stmt->bind_param("ii", $user_id, $exam['course_id']);
$stmt->execute();
$enrollment_result = $stmt->get_result();
if ($enrollment_result->num_rows === 0) {
$_SESSION['error_message'] = "You cannot take this exam because you don't have a completed enrollment for this course.";
header('Location: scheduled-exams.php');
exit;
}
// Check if the student has any dues for this course
$dues_query = "SELECT has_dues FROM enrollments
WHERE user_id = ? AND course_id = ? AND status = 'completed'";
$stmt = $conn->prepare($dues_query);
$stmt->bind_param("ii", $user_id, $exam['course_id']);
$stmt->execute();
$dues_result = $stmt->get_result();
$enrollment_data = $dues_result->fetch_assoc();
if (isset($enrollment_data['has_dues']) && $enrollment_data['has_dues'] == 1) {
$_SESSION['error_message'] = "You have pending dues for this course. Please clear your dues before taking the exam.";
header('Location: scheduled-exams.php');
exit;
}
// Check exam date and time - skip for reattempts
if (!$is_reattempt) {
$current_date = date('Y-m-d');
$current_time = date('H:i:s');
if ($exam['exam_date'] > $current_date) {
$_SESSION['error_message'] = "This exam is scheduled for " . date('M d, Y', strtotime($exam['exam_date'])) . ". You cannot take it yet.";
header('Location: scheduled-exams.php');
exit;
}
if ($exam['exam_date'] == $current_date && $exam['start_time'] > $current_time) {
$_SESSION['error_message'] = "This exam will start at " . date('h:i A', strtotime($exam['start_time'])) . ". Please wait until the scheduled time.";
header('Location: scheduled-exams.php');
exit;
}
if ($exam['exam_date'] < $current_date || ($exam['exam_date'] == $current_date && $exam['end_time'] < $current_time)) {
if (!$is_reattempt) {
$_SESSION['error_message'] = "This exam has ended. You can no longer take it.";
header('Location: scheduled-exams.php');
exit;
}
}
}
// Check if student has already started this exam
$student_exam_query = "SELECT * FROM student_exams WHERE user_id = ? AND exam_id = ? AND status = 'in_progress'";
$stmt = $conn->prepare($student_exam_query);
$stmt->bind_param("ii", $user_id, $exam_id);
$stmt->execute();
$student_exam_result = $stmt->get_result();
$student_exam = null;
$student_exam_id = null;
// If reattempt and there's an in-progress exam, clear it
if ($is_reattempt && $student_exam_result->num_rows > 0) {
$in_progress = $student_exam_result->fetch_assoc();
// Delete any existing answers
$delete_answers = "DELETE FROM student_exam_answers WHERE student_exam_id = ?";
$stmt = $conn->prepare($delete_answers);
$stmt->bind_param("i", $in_progress['id']);
$stmt->execute();
// Delete the in-progress exam
$delete_exam = "DELETE FROM student_exams WHERE id = ?";
$stmt = $conn->prepare($delete_exam);
$stmt->bind_param("i", $in_progress['id']);
$stmt->execute();
// Reset variables
$student_exam_result = null;
}
// Continue with the rest of the file as it was
if ($student_exam_result && $student_exam_result->num_rows > 0) {
$student_exam = $student_exam_result->fetch_assoc();
$student_exam_id = $student_exam['id'];
} else {
// Create a new student exam record
$create_exam_query = "INSERT INTO student_exams (user_id, exam_id, status, start_time, created_at)
VALUES (?, ?, 'in_progress', NOW(), NOW())";
$stmt = $conn->prepare($create_exam_query);
$stmt->bind_param("ii", $user_id, $exam_id);
if ($stmt->execute()) {
$student_exam_id = $conn->insert_id;
// Fetch the created record
$fetch_query = "SELECT * FROM student_exams WHERE id = ?";
$stmt = $conn->prepare($fetch_query);
$stmt->bind_param("i", $student_exam_id);
$stmt->execute();
$result = $stmt->get_result();
$student_exam = $result->fetch_assoc();
} else {
$_SESSION['error_message'] = "Failed to create exam session: " . $conn->error;
header('Location: scheduled-exams.php');
exit;
}
}
// Get all questions for this exam
$questions_query = "SELECT q.*, eqm.id as map_id
FROM questions q
JOIN exam_question_maps eqm ON q.id = eqm.question_id
WHERE eqm.exam_id = ?
ORDER BY RAND()"; // Randomize question order
$stmt = $conn->prepare($questions_query);
$stmt->bind_param("i", $exam_id);
$stmt->execute();
$questions_result = $stmt->get_result();
$questions = [];
while ($question = $questions_result->fetch_assoc()) {
$questions[] = $question;
}
// Get options for multiple choice questions
foreach ($questions as $key => $question) {
if ($question['question_type'] === 'multiple_choice' || $question['question_type'] === 'true_false') {
$options_query = "SELECT * FROM question_options WHERE question_id = ? ORDER BY RAND()"; // Randomize options
$stmt = $conn->prepare($options_query);
$stmt->bind_param("i", $question['id']);
$stmt->execute();
$options_result = $stmt->get_result();
$questions[$key]['options'] = [];
while ($option = $options_result->fetch_assoc()) {
$questions[$key]['options'][] = $option;
}
}
}
// Calculate time remaining
$start_time = new DateTime($student_exam['start_time']);
$current_time = new DateTime();
$time_elapsed = $current_time->getTimestamp() - $start_time->getTimestamp();
$time_remaining = max(0, $exam['duration_minutes'] * 60 - $time_elapsed);
// Include header
include_once 'includes/header.php';
?>
<div class="container-fluid">
<div class="row">
<div class="col-lg-8">
<!-- Exam Information -->
<div class="card shadow mb-4">
<div class="card-header py-3 d-flex justify-content-between align-items-center">
<h6 class="m-0 font-weight-bold text-primary"><?php echo htmlspecialchars($exam['title']); ?></h6>
<div>
<span class="badge bg-warning text-dark" id="timer">Time remaining: --:--</span>
</div>
</div>
<div class="card-body">
<form id="examForm" method="POST" action="take_exam.php">
<input type="hidden" name="student_exam_id" value="<?php echo $student_exam['id']; ?>">
<input type="hidden" name="submit_answers" value="1">
<?php if (empty($questions)): ?>
<div class="alert alert-warning">
<i class="fas fa-exclamation-triangle"></i> No questions have been added to this exam.
</div>
<?php else: ?>
<!-- Questions -->
<?php foreach ($questions as $index => $question): ?>
<div class="card mb-4 question-card" id="question-<?php echo $index; ?>">
<div class="card-header bg-light">
<div class="d-flex justify-content-between align-items-center">
<h6 class="mb-0"><strong>Question <?php echo ($index + 1); ?></strong>
<span class="text-muted">(<?php echo ucfirst($question['question_type']); ?> - <?php echo $question['marks']; ?> marks)</span>
</h6>
<span class="badge bg-<?php echo $question['difficulty'] === 'easy' ? 'success' : ($question['difficulty'] === 'medium' ? 'primary' : 'danger'); ?>">
<?php echo ucfirst($question['difficulty']); ?>
</span>
</div>
</div>
<div class="card-body">
<div class="question-text mb-3">
<?php echo htmlspecialchars($question['question_text']); ?>
</div>
<?php if ($question['question_type'] === 'multiple_choice'): ?>
<!-- Multiple Choice Question -->
<div class="options-list">
<?php foreach ($question['options'] as $option): ?>
<div class="form-check mb-2">
<input class="form-check-input" type="radio"
name="answer[<?php echo $question['id']; ?>]"
id="option-<?php echo $option['id']; ?>"
value="<?php echo $option['id']; ?>">
<label class="form-check-label" for="option-<?php echo $option['id']; ?>">
<?php echo htmlspecialchars($option['option_text']); ?>
</label>
</div>
<?php endforeach; ?>
</div>
<?php elseif ($question['question_type'] === 'true_false'): ?>
<!-- True/False Question -->
<div class="options-list">
<?php foreach ($question['options'] as $option): ?>
<div class="form-check mb-2">
<input class="form-check-input" type="radio"
name="answer[<?php echo $question['id']; ?>]"
id="option-<?php echo $option['id']; ?>"
value="<?php echo $option['id']; ?>">
<label class="form-check-label" for="option-<?php echo $option['id']; ?>">
<?php echo htmlspecialchars($option['option_text']); ?>
</label>
</div>
<?php endforeach; ?>
</div>
<?php elseif ($question['question_type'] === 'short_answer'): ?>
<!-- Short Answer Question -->
<div class="form-group">
<input type="text" class="form-control"
name="text_answer[<?php echo $question['id']; ?>]"
placeholder="Your answer">
</div>
<?php elseif ($question['question_type'] === 'essay'): ?>
<!-- Essay Question -->
<div class="form-group">
<textarea class="form-control" rows="5"
name="text_answer[<?php echo $question['id']; ?>]"
placeholder="Your answer"></textarea>
</div>
<?php endif; ?>
</div>
</div>
<?php endforeach; ?>
<!-- Submit Button -->
<div class="d-flex justify-content-between align-items-center mt-4">
<button type="button" class="btn btn-secondary" id="prevBtn">Previous</button>
<div>
<span id="questionCounter">Question 1 of <?php echo count($questions); ?></span>
</div>
<button type="button" class="btn btn-primary" id="nextBtn">Next</button>
</div>
<div class="mt-4 text-center">
<button type="submit" name="submit_answers" class="btn btn-lg btn-success" id="submitBtn">
<i class="fas fa-check-circle me-2"></i> Submit Exam
</button>
</div>
<?php endif; ?>
</form>
</div>
</div>
</div>
<div class="col-lg-4">
<!-- Exam Summary -->
<div class="card shadow mb-4">
<div class="card-header py-3">
<h6 class="m-0 font-weight-bold text-primary">Exam Summary</h6>
</div>
<div class="card-body">
<p><strong>Course:</strong> <?php echo htmlspecialchars($exam['course_title']); ?></p>
<p><strong>Exam Date:</strong> <?php echo date('M d, Y', strtotime($exam['exam_date'])); ?></p>
<p><strong>Exam Time:</strong> <?php echo date('h:i A', strtotime($exam['start_time'])) . ' - ' . date('h:i A', strtotime($exam['end_time'])); ?></p>
<p><strong>Duration:</strong> <?php echo $exam['duration_minutes']; ?> minutes</p>
<p><strong>Total Questions:</strong> <?php echo count($questions); ?></p>
<p><strong>Passing Score:</strong> <?php echo $exam['passing_percentage']; ?>%</p>
<hr>
<!-- Question Navigation -->
<h6 class="font-weight-bold">Question Navigation</h6>
<div class="question-nav mt-3">
<?php foreach ($questions as $index => $question): ?>
<button type="button"
class="btn btn-outline-primary question-nav-btn mb-1"
data-question="<?php echo $index; ?>">
<?php echo ($index + 1); ?>
</button>
<?php endforeach; ?>
</div>
<div class="mt-3">
<span class="badge bg-light text-dark me-1">◯</span> Not answered
<span class="badge bg-success text-white ms-3 me-1">◉</span> Answered
</div>
</div>
</div>
<!-- Exam Instructions -->
<div class="card shadow mb-4">
<div class="card-header py-3">
<h6 class="m-0 font-weight-bold text-primary">Instructions</h6>
</div>
<div class="card-body">
<ul class="mb-0">
<li>Answer all questions to the best of your ability.</li>
<li>You have <?php echo $exam['duration_minutes']; ?> minutes to complete the exam.</li>
<li>The timer will continue if you refresh the page or leave.</li>
<li>Your answers are saved automatically when you navigate between questions.</li>
<li>Click "Submit Exam" once you have completed all questions.</li>
<li>Once submitted, you cannot return to the exam.</li>
<li><strong>Note:</strong> All exam times are shown in your local time zone for convenience, but are managed on the server in Indian Standard Time (IST/UTC+5:30).</li>
</ul>
</div>
</div>
</div>
</div>
</div>
<script>
document.addEventListener('DOMContentLoaded', function() {
// Variables
let currentQuestion = 0;
const totalQuestions = <?php echo count($questions); ?>;
const questionCards = document.querySelectorAll('.question-card');
const navButtons = document.querySelectorAll('.question-nav-btn');
// Initialize: show first question, hide others
function showQuestion(index) {
questionCards.forEach((card, i) => {
card.style.display = i === index ? 'block' : 'none';
});
// Update the counter
document.getElementById('questionCounter').textContent = `Question ${index + 1} of ${totalQuestions}`;
// Update navigation buttons
document.getElementById('prevBtn').disabled = index === 0;
document.getElementById('nextBtn').textContent = index === totalQuestions - 1 ? 'Review' : 'Next';
// Update the active navigation button
navButtons.forEach((btn, i) => {
btn.classList.toggle('active', i === index);
});
currentQuestion = index;
}
// Initialize: show first question, hide others
showQuestion(0);
// Navigation button event listeners
document.getElementById('prevBtn').addEventListener('click', function() {
if (currentQuestion > 0) {
showQuestion(currentQuestion - 1);
}
});
document.getElementById('nextBtn').addEventListener('click', function() {
if (currentQuestion < totalQuestions - 1) {
showQuestion(currentQuestion + 1);
} else {
// If on last question, scroll to submit button
document.getElementById('submitBtn').scrollIntoView({ behavior: 'smooth' });
}
});
// Question navigation buttons
navButtons.forEach((btn, index) => {
btn.addEventListener('click', function() {
showQuestion(index);
});
});
// Update the navigation buttons when answers are selected
const radioInputs = document.querySelectorAll('input[type="radio"]');
const textInputs = document.querySelectorAll('input[type="text"], textarea');
function updateQuestionStatus() {
questionCards.forEach((card, index) => {
const questionId = card.id.split('-')[1];
const radios = card.querySelectorAll('input[type="radio"]:checked');
const textFields = card.querySelectorAll('input[type="text"], textarea');
let isAnswered = false;
if (radios.length > 0) {
isAnswered = true;
} else {
for (let i = 0; i < textFields.length; i++) {
if (textFields[i].value.trim() !== '') {
isAnswered = true;
break;
}
}
}
// Update the navigation button to reflect answered status
if (isAnswered) {
navButtons[index].classList.add('btn-success');
navButtons[index].classList.remove('btn-outline-primary');
} else {
navButtons[index].classList.remove('btn-success');
navButtons[index].classList.add('btn-outline-primary');
}
});
}
// Add event listeners to all input elements
radioInputs.forEach(input => {
input.addEventListener('change', updateQuestionStatus);
});
textInputs.forEach(input => {
input.addEventListener('input', updateQuestionStatus);
});
// Confirm before submitting
document.getElementById('examForm').addEventListener('submit', function(e) {
const confirmed = confirm('Are you sure you want to submit your exam? You will not be able to make any changes after submission.');
if (!confirmed) {
e.preventDefault();
}
});
// Check for unanswered questions before submitting
document.getElementById('submitBtn').addEventListener('click', function(e) {
const unansweredCount = document.querySelectorAll('.question-nav-btn.btn-outline-primary').length;
if (unansweredCount > 0) {
const confirmSubmit = confirm(`You have ${unansweredCount} unanswered question(s). Are you sure you want to submit your exam?`);
if (!confirmSubmit) {
e.preventDefault();
}
}
});
// Initialize question status
updateQuestionStatus();
// Set up timer
const timeRemainingInSeconds = <?php echo $time_remaining; ?>;
let timerSeconds = timeRemainingInSeconds;
function updateTimer() {
const hours = Math.floor(timerSeconds / 3600);
const minutes = Math.floor((timerSeconds % 3600) / 60);
const seconds = timerSeconds % 60;
const formattedTime =
(hours > 0 ? hours + 'h ' : '') +
(minutes < 10 ? '0' : '') + minutes + 'm ' +
(seconds < 10 ? '0' : '') + seconds + 's';
document.getElementById('timer').innerHTML = 'Time remaining: ' + formattedTime;
if (timerSeconds <= 300) { // 5 minutes remaining
document.getElementById('timer').classList.remove('bg-warning');
document.getElementById('timer').classList.add('bg-danger');
}
if (timerSeconds <= 0) {
clearInterval(timerInterval);
alert('Time is up! Your exam will be submitted automatically.');
document.getElementById('examForm').submit();
}
timerSeconds--;
}
// Initial timer update
updateTimer();
// Update timer every second
const timerInterval = setInterval(updateTimer, 1000);
});
</script>
<?php
// Include footer
include_once 'includes/footer.php';
?>
