V1rus Private

Viewing: start_exam.php

<?php
include 'config.php';
if (!isset($_SESSION['student_id'])) {
    die("Unauthorized access");
}

if ($_SERVER['REQUEST_METHOD'] == 'POST') {
    $category_id = $_POST['category_id'];
    $student_id = $_SESSION['student_id'];
    
    // Check if exam already exists
    $stmt = $pdo->prepare("SELECT * FROM exams WHERE student_id = ? AND category_id = ? AND status = 'pending'");
    $stmt->execute([$student_id, $category_id]);
    $existingExam = $stmt->fetch();
    
    if (!$existingExam) {
        // Create new exam
        $stmt = $pdo->prepare("INSERT INTO exams (student_id, category_id, started_at) VALUES (?, ?, NOW())");
        $stmt->execute([$student_id, $category_id]);
        $exam_id = $pdo->lastInsertId();
    } else {
        $exam_id = $existingExam['id'];
    }
    
    // Get questions for this category
    $stmt = $pdo->prepare("SELECT * FROM questions WHERE category_id = ? ORDER BY RAND() LIMIT 10");
    $stmt->execute([$category_id]);
    $questions = $stmt->fetchAll();
    
    if (empty($questions)) {
        echo "<div class='alert alert-warning'>No questions available for this category.</div>";
        exit;
    }
    ?>
    
    <form id="examForm">
        <input type="hidden" name="exam_id" value="<?php echo $exam_id; ?>">
        <div class="questions-container">
            <?php foreach ($questions as $index => $question): ?>
            <div class="question mb-4">
                <h6>Question <?php echo $index + 1; ?>:</h6>
                <p><?php echo $question['question_text']; ?></p>
                <div class="options">
                    <?php for ($i = 1; $i <= 4; $i++): ?>
                    <div class="form-check">
                        <input class="form-check-input" type="radio" name="question_<?php echo $question['id']; ?>" 
                               id="q<?php echo $question['id']; ?>_opt<?php echo $i; ?>" value="<?php echo $i; ?>">
                        <label class="form-check-label" for="q<?php echo $question['id']; ?>_opt<?php echo $i; ?>">
                            <?php echo $question['option' . $i]; ?>
                        </label>
                    </div>
                    <?php endfor; ?>
                </div>
            </div>
            <?php endforeach; ?>
        </div>
        <button type="button" class="btn btn-success" onclick="submitExam()">Submit Exam</button>
    </form>
    
    <script>
    function submitExam() {
        var formData = new FormData();
        formData.append('exam_id', <?php echo $exam_id; ?>);
        
        // Collect all answers
        <?php foreach ($questions as $question): ?>
        var answer = document.querySelector('input[name="question_<?php echo $question['id']; ?>"]:checked');
        if (answer) {
            formData.append('answers[<?php echo $question['id']; ?>]', answer.value);
        }
        <?php endforeach; ?>
        
        // Submit via AJAX
        fetch('submit_exam.php', {
            method: 'POST',
            body: formData
        })
        .then(response => response.json())
        .then(data => {
            if (data.success) {
                alert('Exam submitted successfully! Score: ' + data.score + '%');
                $('#examModal').modal('hide');
                location.reload();
            } else {
                alert('Error submitting exam: ' + data.message);
            }
        });
    }
    </script>
    <?php
}
?>
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Host / Server	: 190.92.174.125 / aerosofthealthcare.com
System	: Linux s3739.bom1.stableserver.net 4.18.0-513.24.1.lve.2.el8.x86_64 #1 SMP Fri May 24 12:42:50 UTC 2024 x86_64