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📄 Viewing: ../../../../588742.klas4s23.mid-ica.nl/public_html/E-Learning/../E-Learning/checkAnswer.php

<?php
require_once "class/class.php";

header('Content-Type: application/json');
session_start(); // Zorg dat de sessie gestart is

if ($_SERVER['REQUEST_METHOD'] === 'POST') {
    // Invoer valideren en ontsmetten
    $questionId = filter_input(INPUT_POST, 'question_id', FILTER_VALIDATE_INT);
    $userAnswer = filter_input(INPUT_POST, 'answer', FILTER_SANITIZE_STRING);

    if (!$questionId || !$userAnswer) {
        echo json_encode([
            'status' => 'error',
            'message' => 'Ongeldige invoer.'
        ]);
        exit;
    }

    try {
        // Query uitvoeren
        $sql = "SELECT question, correct_answer FROM questions WHERE question_id = :question_id";
        $stmt = Database::conn()->prepare($sql);
        $stmt->bindParam(':question_id', $questionId, PDO::PARAM_INT);
        $stmt->execute();

        $result = $stmt->fetch(PDO::FETCH_ASSOC);

        if ($result) {
            // Vraag en antwoord omwisselen indien nodig
            if (isset($_SESSION['ENToNL']) && $_SESSION['ENToNL'] == 1) {
                $correctAnswer = $result['question']; // Gebruik vraag als correct antwoord
            } else {
                $correctAnswer = $result['correct_answer']; // Standaard situatie
            }

            // Antwoord vergelijken
            $isCorrect = strcasecmp($userAnswer, $correctAnswer) === 0;

            echo json_encode([
                'status' => 'success',
                'is_correct' => $isCorrect
            ]);
        } else {
            echo json_encode([
                'status' => 'error',
                'message' => 'Vraag niet gevonden.'
            ]);
        }
    } catch (PDOException $e) {
        echo json_encode([
            'status' => 'error',
            'message' => 'Databasefout: ' . $e->getMessage()
        ]);
    }
} else {
    echo json_encode([
        'status' => 'error',
        'message' => 'Ongeldige methode. Gebruik POST.'
    ]);
}

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