场景如下：我编写了一个自定义url规则，将注释id传递给模板，并将注释和注释元显示为单个页面(eg. http://example.com/reply/56) 而且效果很好。但现在我正试图完善这条规则，以便在URL中包含评论帖子slug。所以当我访问\'http://example.com/reply/56\' 它应该映射到\'http://example.com/the-post/reply/56\'. 我实际上被困在这一点上了。以下是我迄今为止所做的：有效的规则：

<?php 
add_rewrite_rule( \'^reply/(.*)?$\', \'index.php?pagename=reply-page&reply_id=$matches[1]\', \'top\' );
?>

现在，我正在尝试的代码是：

<?php
add_action(\'init\', \'test\');
function test()
{
    $reply_struct = \'/reply/%reply_id%\';
    $wp_rewrite->add_rewrite_tag(\'%reply_id%\', \'([^/]+)\', \'reply_id=$matches[1]\');
    $wp_rewrite->add_permastruct(\'reply_id\', $reply_struct, false);
}

add_filter(\'post_type_link\', \'reply_permalink\', 10, 3)
function reply_permalink()
{
    $rewritecode= array(
        \'%reply_id%\'
    );

    $test = \'\';
    if ( strpos($permalink, \'%reply_id%\') !== false ) 
    {
        $i = get_query_var(\'reply_id\'); //Trying to get the comment id, this is where I\'ll get the post slug and append it to the url
        $test = \'test\';
     }

     $rewritereplace = array(
       $test
     );
     $permalink = str_replace($rewritecode, $rewritereplace, $permalink);
     return $permalink;
}