PHP
$adv = Db::instance()->selectRow("SELECT r.id as total_id, UNIX_TIMESTAMP(r.datenow) as add_time, r.comment as comments, p.upload_path as upl_path
FROM ?_rent_ads r LEFT JOIN ?_realt_adv_photo_upload p ON r.id=p.id_adv WHERE id_adv=?", $someId);