Ajax? Validation of forms

Validates the form's data through the corresponding xxx.php of the Ajax pass, and returns the validation results
Which elder brother can share this piece of code

Reply to discussion (solution)

$.ajax ({   type: ' Post ',//Submit way post more secure   URL: "www.xx.com/validate.php",//Backend Verify file address   Data:{user_name:user, password:pwd},//Validation parameter   Cache:false,//whether cache   Datatype:json,//Return data type is JSON format   success:function (JSON) {        if (json.status = = 1) {           //processing user name does not exist        }else if ((json.status==2) {           //processing other case      }   },   error: function (JSON) {     console.log ("Network error!");}   );

$user _name = $POST [' user_name ']; $password = $POST [' Password '];if ($user _name = = "") {    echo "{status:1}";} else if ($user _name! = "Zhangshan") {    echo "{status:2}";}

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