| Аргумент | Возможный тип | Описание |
| $coupon_id | — | — |
$coupon_category_data = array();
$query = $this->db->query("SELECT * FROM " . DB_PREFIX . "coupon_category WHERE coupon_id = '" . (int)$coupon_id . "'");
foreach ($query->rows as $result) {
$coupon_category_data[] = $result['category_id'];
}
return $coupon_category_data;