public static function isChildTrading($tradingId, $ChildtradingId) { $ischild = false; $obj_retResult = DAL_manageTrading::getTradingListBytradingId($ChildtradingId); //get child node if ($obj_retResult->type == 1) { $arr_TradingList = $obj_retResult->data; $obj_Trading = $arr_TradingList[0]; $arrParentIds = explode(",", $obj_Trading->Url); foreach ($arrParentIds as $TradingParentId) { if ($TradingParentId == $tradingId) { $ischild = true; } } } return $ischild; }