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nicoboy
268
enseignant/export.php
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268
enseignant/export.php
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<?php
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/**
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* EXPORT ÉVALUATION - BASÉ SUR STRUCTURE RÉELLE BDD
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* Structure vérifiée via diagnostic_structure_bdd.php
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*/
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require_once '../config/config.php';
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require_once '../config/database.php';
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require_once '../config/session.php';
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if (session_status() === PHP_SESSION_NONE) {
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SessionManager::startSession();
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}
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if (!isset($_SESSION['user_id']) || $_SESSION['type_libelle'] !== 'enseignant') {
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die('Accès refusé');
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}
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$id_evaluation = $_GET['id_evaluation'] ?? null;
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$format = $_GET['format'] ?? 'csv';
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if (!$id_evaluation || !in_array($format, ['csv', 'json'])) {
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die('Paramètres invalides');
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}
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try {
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$db = Database::getInstance()->getConnection();
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// Évaluation
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$stmt = $db->prepare("SELECT * FROM evaluations WHERE id_evaluation = ?");
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$stmt->execute([$id_evaluation]);
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$evaluation = $stmt->fetch(PDO::FETCH_ASSOC);
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if (!$evaluation) {
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die('Évaluation non trouvée');
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}
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// Questions
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$stmt = $db->prepare("SELECT * FROM questions WHERE id_evaluation = ? ORDER BY ordre ASC");
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$stmt->execute([$id_evaluation]);
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$questions = $stmt->fetchAll(PDO::FETCH_ASSOC);
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// Tentatives (CORRECTION: date_fin au lieu de date_soumission)
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$stmt = $db->prepare("
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SELECT
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te.*,
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TIMESTAMPDIFF(MINUTE, te.date_debut, COALESCE(te.date_fin, NOW())) as duree_minutes_calc,
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u.login, u.nom, u.prenom,
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c.nom_classe
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FROM tentatives_eleves te
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JOIN utilisateurs u ON te.id_eleve = u.id_utilisateur
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LEFT JOIN classes c ON u.id_classe = c.id_classe
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WHERE te.id_evaluation = ?
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ORDER BY u.nom, u.prenom
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");
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$stmt->execute([$id_evaluation]);
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$tentatives = $stmt->fetchAll(PDO::FETCH_ASSOC);
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if ($format === 'csv') {
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exportCSV($evaluation, $questions, $tentatives);
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} else {
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exportJSON($evaluation, $questions, $tentatives);
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}
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} catch (Exception $e) {
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die('Erreur: ' . $e->getMessage());
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}
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/**
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* Extrait réponse correcte depuis reponse_correcte_json
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* Format réel: {"reponse": "x = 4"}
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*/
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function extraireReponseCorrecte($question) {
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// 1. Essayer reponse_correcte_json d'abord (pour type number, text, etc.)
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$correcte_data = json_decode($question['reponse_correcte_json'] ?? '{}', true);
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if (isset($correcte_data['reponse'])) {
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$rep = $correcte_data['reponse'];
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if (is_array($rep)) {
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return implode(' | ', $rep);
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}
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return $rep;
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}
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// 2. Fallback: chercher dans options_json (pour checkbox, qcm, select)
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$options = json_decode($question['options_json'] ?? '{}', true);
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if (isset($options['reponses']) && is_array($options['reponses'])) {
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$correctes = [];
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foreach ($options['reponses'] as $rep) {
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if (isset($rep['est_correcte']) && $rep['est_correcte'] === true) {
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$correctes[] = $rep['texte'] ?? $rep['id'];
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}
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}
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if (!empty($correctes)) {
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return implode(' + ', $correctes);
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}
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}
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// 2b. Format avec 'options' (select)
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if (isset($options['options']) && is_array($options['options'])) {
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foreach ($options['options'] as $opt) {
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if (isset($opt['est_correcte']) && $opt['est_correcte'] === true) {
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return $opt['texte'];
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}
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}
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}
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// 3. Fallback ultime: options_json peut être un simple array ["opt1", "opt2"]
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if (isset($options['correct_answer'])) {
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return $options['correct_answer'];
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}
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return 'N/A';
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}
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function exportCSV($evaluation, $questions, $tentatives) {
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$filename = sprintf(
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'eval_%d_%s_%s.csv',
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$evaluation['id_evaluation'],
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preg_replace('/[^a-z0-9]/i', '_', substr($evaluation['titre'], 0, 30)),
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date('Ymd_His')
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);
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header('Content-Type: text/csv; charset=utf-8');
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header('Content-Disposition: attachment; filename="' . $filename . '"');
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header('Pragma: no-cache');
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header('Expires: 0');
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$output = fopen('php://output', 'w');
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fprintf($output, chr(0xEF).chr(0xBB).chr(0xBF));
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// En-tête
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$headers = ['ID', 'Élève', 'Classe', 'Login', 'Statut', 'Début', 'Fin', 'Durée(min)', 'Note', 'Note sur', '%'];
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foreach ($questions as $q) {
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$headers[] = 'Q' . $q['ordre'];
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}
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foreach ($questions as $q) {
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$headers[] = 'Q' . $q['ordre'] . '_Correcte';
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}
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fputcsv($output, $headers, ';');
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// Données
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foreach ($tentatives as $t) {
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$reponses = json_decode($t['reponses_json'] ?? '{}', true) ?: [];
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$row = [
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$t['id_tentative'],
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$t['prenom'] . ' ' . $t['nom'],
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$t['nom_classe'] ?: 'Libre',
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$t['login'],
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$t['statut'],
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$t['date_debut'],
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$t['date_fin'] ?: '-',
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$t['temps_passe'] ?? $t['duree_minutes_calc'],
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$t['note'] !== null ? number_format($t['note'], 2, ',', '') : 'N/A',
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$t['note_sur'] ?? $evaluation['note_totale'],
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$t['pourcentage'] !== null ? number_format($t['pourcentage'], 1, ',', '') . '%' : 'N/A'
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];
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// Réponses élève
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foreach ($questions as $q) {
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$rep = $reponses[$q['id_question']] ?? '';
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if (is_array($rep)) {
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$rep = implode(' + ', $rep);
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} elseif (is_object($rep)) {
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$rep = json_encode($rep, JSON_UNESCAPED_UNICODE);
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}
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$row[] = $rep;
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}
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// Réponses correctes
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foreach ($questions as $q) {
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$row[] = extraireReponseCorrecte($q);
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}
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fputcsv($output, $row, ';');
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}
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fclose($output);
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exit;
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}
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function exportJSON($evaluation, $questions, $tentatives) {
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$filename = sprintf(
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'eval_%d_%s_%s.json',
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$evaluation['id_evaluation'],
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preg_replace('/[^a-z0-9]/i', '_', substr($evaluation['titre'], 0, 30)),
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date('Ymd_His')
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);
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header('Content-Type: application/json; charset=utf-8');
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header('Content-Disposition: attachment; filename="' . $filename . '"');
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$export = [
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'metadata' => [
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'date_export' => date('Y-m-d H:i:s'),
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'exporteur' => $_SESSION['login'] ?? 'Enseignant'
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],
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'evaluation' => [
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'id' => (int)$evaluation['id_evaluation'],
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'titre' => $evaluation['titre'],
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'description' => $evaluation['description'] ?? '',
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'type' => $evaluation['type'],
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'duree_minutes' => (int)$evaluation['duree_minutes'],
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'note_totale' => (float)$evaluation['note_totale'],
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'nb_questions' => count($questions),
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'tentatives_max' => (int)$evaluation['tentatives_max']
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],
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'questions' => [],
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'tentatives' => []
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];
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foreach ($questions as $q) {
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$export['questions'][] = [
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'id' => (int)$q['id_question'],
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'ordre' => (int)$q['ordre'],
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'type' => $q['type_question'],
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'enonce' => $q['enonce'],
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'options' => json_decode($q['options_json'] ?? '[]', true),
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'reponse_correcte' => extraireReponseCorrecte($q),
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'points' => (float)$q['points'],
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'explication' => $q['explication'] ?? null
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];
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}
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foreach ($tentatives as $t) {
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$reponses = json_decode($t['reponses_json'] ?? '{}', true) ?: [];
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$details = [];
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foreach ($questions as $q) {
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$details[] = [
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'question_id' => (int)$q['id_question'],
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'ordre' => (int)$q['ordre'],
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'reponse_eleve' => $reponses[$q['id_question']] ?? null,
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'reponse_correcte' => extraireReponseCorrecte($q)
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];
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}
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$export['tentatives'][] = [
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'id' => (int)$t['id_tentative'],
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'eleve' => [
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'id' => (int)$t['id_eleve'],
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'nom' => $t['nom'],
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'prenom' => $t['prenom'],
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'login' => $t['login'],
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'classe' => $t['nom_classe'] ?? 'Libre'
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],
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'numero_tentative' => (int)$t['numero_tentative'],
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'statut' => $t['statut'],
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'note' => $t['note'] !== null ? (float)$t['note'] : null,
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'note_sur' => $t['note_sur'] !== null ? (float)$t['note_sur'] : (float)$evaluation['note_totale'],
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'pourcentage' => $t['pourcentage'] !== null ? (float)$t['pourcentage'] : null,
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'dates' => [
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'debut' => $t['date_debut'],
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'fin' => $t['date_fin']
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],
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'temps_passe_minutes' => $t['temps_passe'] ?? (int)$t['duree_minutes_calc'],
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'reponses_detaillees' => $details
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];
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}
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echo json_encode($export, JSON_PRETTY_PRINT | JSON_UNESCAPED_UNICODE);
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exit;
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}
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?>
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