doyrte8419 2012-04-30 08:29
浏览 29

AJAX post返回具有特定值的HTML标记

I'm trying to write a code that adds user comment using jquery's post.I passed parameters to ajax.php and received josn data, as the following:

var formObjectData = $('#' + form_id).serialize() + '&flag=add_comment'; // all 
$.post(
    'http://192.168.3.3/myblog/ajax.php',formObjectData,
    function(data) {
        if (!data)
            alert("No data");
        else {
            if (data.msg!='')
                $("#add_comment").html(data.msg);
        }
    },
    'json'
);

on ajax.php

$cid = $classobj->add_comment($comment,$id); // to add the comment in db and return the comment id
$ajax['msg'] = $msg ? $msg : '';
if ($cid) {
    $ajax['cid'] = $cid;
}
echo json_encode($ajax);

My problem is the jquery returns many irreverent html tags wihth the json data as the below 

<html>
    <head>
        <style type="text/css">
        </style>
    </head>
</html>{"msg":"hello","cid":"600"}

what is the easest way to solve this problem? Thanks in advance!!

  • 写回答

1条回答 默认 最新

  • drl9940 2012-04-30 08:42
    关注

    If your ajax.php file contains any style or HTML, you will be given that data back when you perform your AJAX request. Remove any styling or HTML from your ajax endpoint. A simple way is to exit() or die() after the JSON encode (if there is HTML after it) or just remove it totally.

    Also, remember to include the following code before json_encode($ajax):

    header('Content-Type: application/json'); - this will ensure it is always recognised as a JSON object. I know Chrome certainly has problems inferring what your sending back is actually JSON!

    评论

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