| Аргумент | Возможный тип | Описание |
| $product_id | — | — |
| $var | — | — |
$link = $this->db->query("SELECT * FROM `" . DB_PREFIX . "amazon_product_link` WHERE `product_id` = " . (int)$product_id . " AND var = '" . $this->db->escape($var) . "'")->row;
if(empty($link)) {
return false;
} else {
return true;
}