= $i) { if ($i == 0) $eBayCategoryListLevel = Db::getInstance()->ExecuteS('SELECT * FROM `'._DB_PREFIX_.'ebay_category` WHERE `level` = 1 AND `id_category_ref` = `id_category_ref_parent`'); else $eBayCategoryListLevel = Db::getInstance()->ExecuteS('SELECT * FROM `'._DB_PREFIX_.'ebay_category` WHERE `level` = '.(int)($i + 1).' AND `id_category_ref_parent` IN (SELECT `id_category_ref` FROM `'._DB_PREFIX_.'ebay_category` WHERE `id_ebay_category` = '.(int)($_GET['level'.$i]).')'); if ($eBayCategoryListLevel) { $levelExists[$i + 1] = true; echo ' '; } } if (!isset($levelExists[$_GET['level'] + 1])) echo ''; } else echo 'ERROR';