给WordPress中的留言加上楼层号的PHP代码实例_PHP

最近突然发现博客的评论楼层有点问题，之前一直设置的是“在每个页面顶部显示新的评论”，也就是所谓的倒序显示评论，但是主题只支持顺序的评论楼层好，于是楼层和楼层号之间对不上。搜了一下在zww.me发现有实现的代码，但是放到博客之后无法正常工作，比如限制分页显示为25条的时候，文章只有一条评论时也显示的25楼。折腾了一下搞定了，做个记录，也供大家参考。

在主题文件 functions.php中找到$GLOBALS['comment'] = $comment;在后面加上下面的代码：

/* 主评论计数器 */
 global $commentcount,$wpdb, $post;
 if(!$commentcount) { //初始化楼层计数器
  if ( get_option('comment_order') === 'desc' ) { //倒序
  $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
  $page = get_query_var('cpage');//获取当前评论列表页码
  $cpp=get_option('comments_per_page');//获取每页评论显示数量
  if (ceil($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
  $page = get_query_var('cpage')-1;
  $cpp=get_option('comments_per_page');//获取每页评论数
  $commentcount = $cpp * $page;
  }
 }
/* 主评论计数器 end */
 if ( !$parent_id = $comment->comment_parent ) {
  $commentcountText = '<div class="floor">';
  if ( get_option('comment_order') === 'desc' ) { //倒序
  $commentcountText .= --$commentcount . '楼';
  } else {
  switch ($commentcount) {
   case 0:
   $commentcountText .= '<span>沙发！</span>'; ++$commentcount;
   break;
   case 1:
   $commentcountText .= '<span>板凳！</span>'; ++$commentcount;
   break;
   case 2:
   $commentcountText .= '<span>地板！</span>'; ++$commentcount;
   break;
   default:
   $commentcountText .= ++$commentcount . '楼';
   break;
  }
  }
  $commentcountText .= '</div">';
 }
 }

然后在合适的位置加上以下代码输出楼层号

<&#63;php echo $commentcountText; //主评论楼层号 - by zwwooooo &#63;>

修改之后的代码应该是这样的（以官方最新的 wp_list_comments() 回调函数代码为例）：

<&#63;php
function mytheme_comment($comment, $args, $depth) {
 $GLOBALS['comment'] = $comment;
 /* 主评论计数器 by zwwooooo Modified Gimhoy(http://blog.gimhoy.com) */
 global $commentcount,$wpdb, $post;
 if(!$commentcount) { //初始化楼层计数器
  if ( get_option('comment_order') === 'desc' ) { //倒序
  $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
  $page = get_query_var('cpage');//获取当前评论列表页码
  $cpp=get_option('comments_per_page');//获取每页评论显示数量
  if (ceil($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
  $page = get_query_var('cpage')-1;
  $cpp=get_option('comments_per_page');//获取每页评论数
  $commentcount = $cpp * $page;
  }
 }
 /* 主评论计数器 end */
 if ( !$parent_id = $comment->comment_parent ) {
  $commentcountText = '<div class="floor">';
  if ( get_option('comment_order') === 'desc' ) { //倒序
  $commentcountText .= --$commentcount . '楼';
  } else {
  switch ($commentcount) {
   case 0:
   $commentcountText .= '<span>沙发！</span>'; ++$commentcount;
   break;
   case 1:
   $commentcountText .= '<span>板凳！</span>'; ++$commentcount;
   break;
   case 2:
   $commentcountText .= '<span>地板！</span>'; ++$commentcount;
   break;
   default:
   $commentcountText .= ++$commentcount . '楼';
   break;
  }
  }
  $commentcountText .= '</div">';
 }
 }

 extract($args, EXTR_SKIP);

 if ( 'div' == $args['style'] ) {
 $tag = 'div';
 $add_below = 'comment';
 } else {
 $tag = 'li';
 $add_below = 'div-comment';
 }
&#63;>
 <<&#63;php echo $tag &#63;> <&#63;php comment_class(empty( $args['has_children'] ) &#63; '' : 'parent') &#63;> id="comment-<&#63;php comment_ID() &#63;>">
 <&#63;php if ( 'div' != $args['style'] ) : &#63;>
 <div id="div-comment-<&#63;php comment_ID() &#63;>" class="comment-body">
 <&#63;php endif; &#63;>
 <div class="comment-author vcard">
 <&#63;php if ($args['avatar_size'] != 0) echo get_avatar( $comment, $args['avatar_size'] ); &#63;>
 <&#63;php printf(__('<cite class="fn">%s</cite> <span class="says">says:</span>'), get_comment_author_link()) &#63;>
 </div>
<&#63;php if ($comment->comment_approved == '0') : &#63;>
 <em class="comment-awaiting-moderation"><&#63;php _e('Your comment is awaiting moderation.') &#63;></em>
 <br />
<&#63;php endif; &#63;>

 <div class="comment-meta commentmetadata"><a href="<&#63;php echo htmlspecialchars( get_comment_link( $comment->comment_ID ) ) &#63;>">
 <&#63;php
  /* translators: 1: date, 2: time */
  printf( __('%1$s at %2$s'), get_comment_date(), get_comment_time()) &#63;></a><&#63;php edit_comment_link(__('(Edit)'),' ','' );
 &#63;>
 </div>

 <&#63;php comment_text() &#63;>

 <div class="reply">
 <&#63;php comment_reply_link(array_merge( $args, array('add_below' => $add_below, 'depth' => $depth, 'max_depth' => $args['max_depth']))) &#63;>
 </div>

 <&#63;php echo $commentcountText; //主评论楼层号 - by zwwooooo &#63;>

 <&#63;php if ( 'div' != $args['style'] ) : &#63;>
 </div>
 <&#63;php endif; &#63;>
<&#63;php
 }

样式就自己添加吧~~