ajax+php处理案例

<div>
    <table>
        <tr>
            <th>状态</th>
            <th>信息</th>
        </tr>
        <tr>
            <td>00</td>
            <td>显示信息</td>
        </tr>
    </table>
</div>
   <input type="submit" name="xx" value="提交">

js部分:

<script src="jquery.js"></script>
<script>
$(function(){
    $('input[name="xx"]').click(function(){
        //alert('123');
        $.post('vv.php',{a:'yy'},function(msg){
            var x = eval('('+msg+')');
            $.each(x,function(i,m){
                $('table').append('<tr><td>'+m.status+'</td><td>'+m.msg+'</td></tr>');
            })    
        })    
    })    
})
</script>

vv.php部分:

<?php
$a = !empty($_POST['a'])?$_POST['a']:0;
if($a=='yy'){
    $arr =  array(
        array('status' => 0, 'msg' => '未知错误'),
        array('status' => 1, 'msg' => '未知错误22')
    );
    echo json_encode($arr);
}
?>