使用AJAX在点击时加载每个帖子的评论

我正在开发一个使用滑块显示博客帖子的主题。滑块下方是一个分页，显示方式类似于时间线，用日期而不是页码，调用相应的博客文章。我想显示每个帖子的评论，但在滑块之外。因此，我的标题中有以下代码，用于使用ajax获取注释：

：：已编辑（现在使用wp-admin/admin-ajax.php 处理请求，如下所示）：

$(".timeline-entry a").live(\'click\', function(event) {
  event.preventDefault();
  $.ajax({
     url: \'<?php echo admin_url(\'admin-ajax.php\'); ?>\',
     type: \'POST\',
     action: \'do_ajax\',
     data: {
        \'post_id\' : \'72\' //using a post id that I *know* has comments, for testing!
     },
     dataType: "json",
     success: function(myResult) {
        alert(myResult);
     },
     error: function(error) {
        alert(error);
     }
  });
});

在我的功能中。php：

add_action(\'wp_ajax_nopriv_do_ajax\', \'retrieve_comments\');
add_action(\'wp_ajax_do_ajax\', \'retrieve_comments\');

function retrieve_comments(){      
    $myPost = $_REQUEST[\'post_id\'];
    $output = get_comments(\'post_id=\' + $myPost);
    $output = json_encode($output);          
    if(is_array($output)){         
        print_r($output);             
    }          
    else{         
        echo $output;          
    }          
    die;
};

我明白了0 在警报框中。。。这意味着ajax正在发生，但我的php函数有问题，对吗？

谢谢你的帮助。

[{"comment_ID":"1","comment_post_ID":"1","comment_author":"Mr WordPress","comment_author_email":"","comment_author_url":"http:\\/\\/wordpress.org\\/","comment_author_IP":"","comment_date":"2012-08-28 19:55:20","comment_date_gmt":"2012-08-28 19:55:20","comment_content":"Hi, this is a comment.<br \\/>To delete a comment, just log in and view the post's comments. There you will have the option to edit or delete them.","comment_karma":"0","comment_approved":"1","comment_agent":"","comment_type":"","comment_parent":"0","user_id":"0"},{"comment_ID":"2","comment_post_ID":"72","comment_author":"Mr WordPress","comment_author_email":"","comment_author_url":"http:\\/\\/wordpress.org\\/","comment_author_IP":"","comment_date":"2010-07-11 12:10:08","comment_date_gmt":"2010-07-11 12:10:08","comment_content":"Hi, this is a comment.<br \\/>To delete a comment, just log in and view the post's comments. There you will have the option to edit or delete them.","comment_karma":"0","comment_approved":"1","comment_agent":"","comment_type":"","comment_parent":"0","user_id":"0"}

将灵活的旋转木马整合到WordPress：如何编写ajax_allback函数

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