PHP实例：给WordPress中的留言加上楼层号的PHP代码实例

/* 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{ //次序
  $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">';
 }
 }

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