function updateFee() { $stmt = TableMng::getDB()->prepare("UPDATE SchbasFee SET fee_normal = ?, fee_reduced = ? WHERE grade = ?;"); for ($i = 5; $i <= 12; $i++) { $_POST[$i . 'norm'] = str_replace(",", ".", $_POST[$i . 'norm']); $_POST[$i . 'erm'] = str_replace(",", ".", $_POST[$i . 'erm']); $stmt->bind_param('sss', $_POST[$i . 'norm'], $_POST[$i . 'erm'], $i); if (!$stmt->execute()) { die('schinken'); } } $stmt->close(); }