The php implementation makes the data into the json format for the front end to use

interCom. php page

<?php

header('Content-Type: application/json; charset=utf8'); 
class Response{
/* interger $Status  Status code  200/400
* string $Msg  Prompt information 
* array $Data  Data 
* return string  Return value   json Data returned 
* */
public static function json($Status,$Msg,$Data=array()){
if(!is_numeric($Status)){ // Whether it is a number or not 
return "";
}
// Assemble new data 
$result=array(
'Status'=>$Status,
'Msg'=>$Msg,
'Data'=>$Data
);
// Become json Format 
echo json_encode($result,JSON_UNESCAPED_UNICODE);//JSON_UNESCAPED_UNICODE Let Chinese not be coded 
exit;
}
}
?>

list. php file

<?php
require_once("interCom.php");// Quote interCom.php Documents 
//http://127.0.0.1/list.php?page=1&pagesize=12 //
$page=isset($_GET['page'])?$_GET['page']:1;
// If it exists, it is the passed value   If not, assign it to 1
$pagesize=isset($_GET['pagesize'])?$_GET['pagesize']:1;
if(!is_numeric($page)||!is_numeric($pagesize)){
Response::json(401, " Illegal data "); //
}
?>

//The front end calls url of json data to see where list is placed on the local server. I use the wamp suite. Put it at http://127.0.0.1/workSpace/list. php, which is also the address requested by the client, but what parameters should be passed to this address? page & pagesize Try the following one to understand.

http://127.0.0.1/workSpace/list.php?page=xsxs