最近有用户问DUX评论列表后面的楼层是怎么实现的？我们的WordPress主题是否可以实现？今天简单分享一下WordPress如何实现评论列表显示楼层？
该文件位于dux主题目录下的modules文件夹中，名字叫做mo_comments_list.php，下面是源码。
/**
* [mo_comments_list description]
* @param [type] $comment [description]
* @param [type] $args [description]
* @param [type] $depth [description]
* @return [type] [description]
*/
function mo_comments_list($comment, $args, $depth) {
$GLOBALS[\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\’comment\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\’] = $comment;
global $commentcount, $wpdb, $post;
if(!$commentcount) { //初始化楼层计数器
$page = get_query_var(\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\’cpage\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\’);//获取当前评论列表页码
$cpp = get_option(\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\’comments_per_page\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\’);//获取每页评论显示数量
$pcs = get_option(\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\’page_comments\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\’);//分页开关
$comments = $wpdb->get_results(\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\”SELECT * FROM $wpdb->comments WHERE comment_post_ID = $post->ID AND comment_type = \\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\’\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\’ AND comment_approved = \\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\’1\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\’ AND !comment_parent\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\”);
$cnt = count($comments);//获取主评论总数量
if ( get_option(\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\’comment_order\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\’) === \\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\’desc\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\’ ) { //倒序
if (!$pcs || ceil($cnt / $cpp) == 1 || ($page > 1 && $page == ceil($cnt / $cpp))) {
$commentcount = $cnt + 1;//如果评论只有1页或者是最后一页，初始值为主评论总数
} else {
$commentcount = $cpp * $page + 1;
}
}else{ //顺序
if( !$pcs ){
$commentcount = 0;
}else{
$page = $page-1;
$commentcount = $cpp * $page;
}
}
}
echo \\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\'<li \\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\’; comment_class(); echo \\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\’ id=\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\”comment-\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\’.get_comment_ID().\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\’\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\”>\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\’;
if(!$parent_id = $comment->comment_parent ) {
echo \\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\'<span class=\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\”comt-f\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\”>#\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\’. (get_option(\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\’comment_order\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\’) === \\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\’desc\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\’?–$commentcount:++$commentcount) .\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\'</span>\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\’;
}
echo \\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\'<div class=\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\”comt-avatar\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\”>\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\’;
echo _get_the_avatar($user_id=$comment->user_id, $user_email=$comment->comment_author_email);
echo \\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\'</div>\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\’;
echo \\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\'<div class=\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\”comt-main\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\” id=\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\”div-comment-\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\’.get_comment_ID().\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\’\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\”>\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\’;
comment_text();
if ($comment->comment_approved == \\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\’0\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\’){
echo \\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\'<span class=\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\”comt-approved\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\”>待审核</span>\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\’;
}
echo \\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\'<div class=\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\”comt-meta\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\”><span class=\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\”comt-author\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\”>\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\’.get_comment_author_link().\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\'</span>\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\’;
echo _get_time_ago($comment->comment_date);
if ($comment->comment_approved !== \\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\’0\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\’){
$replyText = get_comment_reply_link( array_merge( $args, array(\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\’add_below\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\’ => \\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\’div-comment\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\’, \\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\’depth\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\’ => $depth, \\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\’max_depth\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\’ => $args[\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\’max_depth\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\’] ) ) );
// echo str_replace(\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\’ href\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\’, \\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\’ href=\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\”javascript:;\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\” data-href\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\’, $replyText );
if( strstr($replyText, \\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\’reply-login\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\’) ){
echo preg_replace(\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\’# class=\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\”https://www.wpzt.net/[\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\s\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\S]*?\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\” href=\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\”https://www.wpzt.net/[\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\s\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\S]*?\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\”#\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\’, \\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\’ class=\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\”signin-loader\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\” href=\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\”javascript:;\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\”\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\’, $replyText );
}else{
echo preg_replace(\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\’# href=[\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\s\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\S]*? onclick=#\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\’, \\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\’ href=\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\”javascript:;\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\” onclick=\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\’, $replyText );
}
}
echo \\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\'</div>\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\’;
echo \\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\'</div>\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\’;
}
使用方法一
像dux一样，在主题目录下建立modules文件夹，然后将上面的代码保存在该文件夹中，再利用如下代码加载到WordPress中。
function _moloader($name = \\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\’\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\’, $apply = true) {
if (!function_exists($name)) {
include get_stylesheet_directory() . \\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\’/modules/\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\’ . $name . \\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\’.php\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\’;
}
if ($apply && function_exists($name)) {
$name();
}
}
加载方式多种多样，直接使用include引用也是可以的。然后通过_moloader(‘mo_comments_list’, false);来加载上面的代码，最后就是使用了。WordPress提供了评论列表加载方法wp_list_comments函数，该函数可以携带回调函数callback。
wp_list_comments(\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\’type=comment&callback=mo_comments_list\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\’);
上述代码的意思是取出评论数据，并交给回调函数mo_comments_list来处理，mo_comments_list就是上面我们的楼层计数方法，其中包含了输出评论的内容。
使用方法二
直接将上面的代码写在functions.php文件中，返回在文章页适当位置使用下面代码来调用。
wp_list_comments(\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\’type=comment&callback=mo_comments_list\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\’);