kann es sein, dass in der quiz.php in folgender Zeile was fehlt ?
Code: Alles auswählen
$sql = "INSERT INTO " . QUIZ_TABLE . " SET
question = '$question', answer = '$answer', answer2 = '$answer2', answer3 = '$answer3', answer4 = '$answer4', quiz_type = '$quiz_type', quiz_status = -3";
$sql .= ( !$quiz_config['quiz_points_disable'] ) ? '' : ", quiz_points = '$quiz_points'";

Sowas wie
Code: Alles auswählen
'user_id' = '$quiz_from_user_id"
