if (!empty($service_child_order_list)) {

           foreach ($service_child_order_list as $service_child_order) {
                if( is_array( $service_child_order ) ){
                    $child_order_amount += $service_child_order['order_amount'];
                }else{
                    $child_order_amount = $service_child_order_list['order_amount'];
                }
                //$child_order_amount += $service_child_order['order_amount'];
            }
      }