php - 从数据库中删除不起作用

Question

<script type="text/javascript" src="http://ajax.googleapis.com/ajax/libs/jquery/1.3.0/jquery.min.js"></script>
<script type="text/javascript">
$(document).ready(function() {
$('#load').hide();
});

$(function() {
$(".delete").click(function() {
$('#load').fadeIn();
var commentContainer = $(this).parent();
var id = $(this).attr("id");
var string = 'id='+ id ;

$.ajax({
   type: "POST",
   url: "delete.php",
   data: string,
   cache: false,
   success: function(){
    commentContainer.slideUp('slow', function() {$(this).remove();});
    $('#load').fadeOut();
  }

 });

return false;
    });
});


</script>



<?php

include('config.php');
$sql=mysql_query("SELECT * FROM messages ORDER BY mes_id DESC LIMIT 20");
while($row=mysql_fetch_array($sql))
        {
        $msgID= $row['mes_id'];
        $msg= $row['msg'];

?>

<div id="<?php echo $msgID; ?>"  align="left" class="message_box" >
<span class="number"><?php echo $msgID; ?></span><?php echo $msg; ?> 
 <a href="delete.php" class="delete">x</a>
</div>

<?php
}

?>

我对此进行了编码以显示数据库中的条目，并在每个 div 中显示一个删除按钮。 delete.php 包含代码

<?php 
include('config.php');
echo $id=$_REQUEST['msgID'];
$sql="delete from messages where mes_id='$id'";
$res=mysql_query($sql) or die(mysql_error());

?>

但它不起作用。我无法从数据库中删除条目..

Answer 1

检查你的请求 var_dump($_REQUEST)你发送 var string = 'id='+ id ;并尝试接收 $_REQUEST['msgID']只需更改为 $_REQUEST['id']