An example analysis of Ajax Cross-domain method in jquery _jquery

The example of this article analyzes the Ajax Cross-domain in jquery. Share to everyone for your reference, specific as follows:

JSONP is an unofficial protocol that allows the server-side integration script tags to return to the client, enabling Cross-domain access through JavaScript callback

Method One: The Getjson of JSONP

Js

var url = "http://localhost/mytest/jsonp_php.php?callback=?";
$.getjson (URL, {
  "age": "
  name": "Kitty"
}, function (data) {
  alert (' Name: + Data.name + ', Age: "+ da ta.age);
};

Php

<?php 
  $age =$_get["age"];
  $name =$_get["name"];
  $jsondata = "{age: $age, Name: ' $name '}";
  Echo $_get[' callback ']. ' ('. $jsondata. ') ';
? >

The $.ajax of the second JSONP

Js

$.ajax ({
  type: ' Get ',
  URL: ' http://localhost/mytest/jsonp_php.php ',
  dataType: ' Jsonp ',
  jsonp: " Callback5 ",
  jsonpcallback:" Flighthandler ",
  data: {
    " age ":",
    "name": "Kitty"
  },
  success : function (data) {
    alert ("Name: + data.sd +", Age: + Data.aa)
  }
})

Php

<?php
  $age =$_get["age"];
  $name =$_get["name"];
  $ary =array ("SD" => "SDFG", "AA" =>23);
   $jsondata =json_encode ($ary);
  echo $_get[' Callback5 ']. ' ('. $jsondata. ') ';
? >

I hope this article will help you with the jquery program design.