public static function isChildBusiness_product($ProductId, $ChildProductId) { $ischild = false; $obj_retResult = DAL_manageBusiness_product::getBusiness_productListByProductId($ChildProductId); //get child node if ($obj_retResult->type == 1) { $arr_Business_productList = $obj_retResult->data; $obj_Business_product = $arr_Business_productList[0]; $arrParentIds = explode(",", $obj_Business_product->Url); foreach ($arrParentIds as $Business_productParentId) { if ($Business_productParentId == $ProductId) { $ischild = true; } } } return $ischild; }