ajax+php处理案例

 1 <div>
 2     <table>
 3         <tr>
 4             <th>状态</th>
 5             <th>信息</th>
 6         </tr>
 7         <tr>
 8             <td>00</td>
 9             <td>显示信息</td>
10         </tr>
11     </table>
12 </div>
   <input type="submit" name="xx" value="提交">

 1 <script src="jquery.js"></script>
 2 <script>
 3 $(function(){
 4     $(‘input[name="xx"]‘).click(function(){
 5         alert(‘12‘);
 6         $.post(‘vv.php‘,{a:‘yy‘},function(msg){
 7             var x = eval(‘(‘+msg+‘)‘);
 8             $.each(x,function(i,m){
 9                 $(‘table‘).append(‘<tr><td>‘+m.status+‘</td><td>‘+m.msg+‘</td></tr>‘);
10             }),‘json‘    
11         })    
12     })    
13 })
14 </script>

 1 <?php
 2 $a = !empty($_POST[‘a‘])?$_POST[‘a‘]:0;
 3 if($a==‘yy‘){
 4     $arr =  array(
 5         array(‘status‘ => 0, ‘msg‘ => ‘未知错误‘),
 6         array(‘status‘ => 1, ‘msg‘ => ‘未知错误22‘)
 7     );
 8     echo json_encode($arr);
 9 }
10 ?>