如果评论作者是注册用户，此功能将用评论作者的个人资料页替换评论作者的链接。否则，将显示标准WordPress commentauthor链接。

此函数不是我的，并且has been found googling.

function graphene_comment_author_profile_link(){
    /* Get the comment author information */
    global $comment;
    $comment_ID = $comment->user_id;
    $author = get_comment_author( $comment_ID );
    $url    = get_comment_author_url( $comment_ID );

    /* Return the default WordPress comment author link if comment author is not
    a registered user */
    if ($comment_ID == 0){
        if ( empty( $url ) || \'http://\' == $url )
            $return = $author;
        else
            $return = "<a href=\'$url\' rel=\'external nofollow\' class=\'url\'>$author</a>";
    } else {
    /* Return the link to the comment author\'s profile age if otherwise */
        $return = \'<a href="\'.home_url().\'/?author=\'.$comment_ID.\'">\'.$author.\'</a>\';
    }

    return $return;
}
add_filter(\'get_comment_author_link\', \'graphene_comment_author_profile_link\');