prepare(
'SELECT q.score, a.is_correct
FROM submissions s
JOIN answers a ON s.answer_id = a.id
JOIN questions q ON s.question_id = q.id
WHERE s.participant_id = ?'
);
$score_stmt->execute([$participant_id]);
$results = $score_stmt->fetchAll(PDO::FETCH_ASSOC);
$total_score = 0;
foreach ($results as $result) {
if ($result['is_correct']) {
$total_score += (int)$result['score'];
} else {
$total_score -= (int)$result['score'];
}
}
return $total_score;
}
$participants_stmt = $pdo->query("SELECT id, nickname FROM participants");
$participants = $participants_stmt->fetchAll(PDO::FETCH_ASSOC);
foreach ($participants as $participant) {
$leaderboard_data[] = [
'nickname' => $participant['nickname'],
'score' => calculate_score($participant['id'], $pdo)
];
}
// Sort by score descending
usort($leaderboard_data, function($a, $b) {
return $b['score'] <=> $a['score'];
});
}
// Using the same frontend style as index.php
// I will read the content of index.php and extract the header and footer
// For now I will just copy the style part
?>
Classifica Quiz
Classifica Finale
Rank
Nickname
Punteggio
$row): ?>
La classifica non è stata ancora pubblicata. Torna più tardi!