| Аргумент | Возможный тип | Описание |
| $voucher_id | — | — |
$this->db->query("DELETE FROM " . DB_PREFIX . "voucher WHERE voucher_id = '" . (int)$voucher_id . "'");
$this->db->query("DELETE FROM " . DB_PREFIX . "voucher_history WHERE voucher_id = '" . (int)$voucher_id . "'");