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The simplest example of php+jquery+ajax+json

大家讲道理Original: 2016-11-08 13:54:151059browse

html页面：

<html>
 <head>
 <meta http-equiv="content-type" content="text/html;charset=utf-8" />
 <script type="text/javascript" src="jquery-1.8.2.min.js"></script>
 <script type="text/javascript">
  $(function(){
       $("#send").click(function(){
        var cont = $("input").serialize();
        $.ajax({
             url:&#39;ab.php&#39;,
             type:&#39;post&#39;,
             dataType:&#39;json&#39;,
             data:cont,
             success:function(data){
              var str = data.username + data.age + data.job;
              $("#result").html(str);
         }
    });
   });  
  });
 </script>
 </head>
 <body>
 <div id="result">一会看显示结果</div>
 <form id="my" action="" method="post">
            <p><span>姓名：</span> <input type="text" name="username" /></p>
           <p><span>年龄：</span><input type="text" name="age" /></p>
           <p><span>工作：</span><input type="text" name="job" /></p>
 </form>
 <button id="send">提交</button>
 </body>
 </html>

/*******************************************/

php页面：

<?php
 header("Content-type:text/html;charset=utf-8");
         $username = $_POST[&#39;username&#39;];
         $age = $_POST[&#39;age&#39;];
         $job = $_POST[&#39;job&#39;];
         $json_arr = array("username"=>$username,"age"=>$age,"job"=>$job);
         $json_obj = json_encode($json_arr);
         echo $json_obj;
 ?>

使用post方式

<script type="text/javascript">
  $(function(){
   $("#send").click(function(){
       var cont = {username:$("input")[0].value,age:$("input")[1].value,job:$("input")[2].value};
       var url = &#39;ab.php&#39;;
       $.post(url,cont,function(data){
        var res = eval("(" + data + ")");//转为Object对象
       var str = res.username + res.age + res.job;
     $("#result").html(str);
    });
   });  
  });
 </script>

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