| Аргумент | Возможный тип | Описание |
| $key | — | — |
$qry = $this->db->query("SELECT `product_id` FROM `" . DB_PREFIX . "ebay_listing_pending` WHERE `key` = '".$this->db->escape($key)."' LIMIT 1");
if(!$qry->num_rows) {
return false;
}else{
return $qry->row['product_id'];
}