调用特定时间内评论最多文章

首先把下列代码放入 functions.php

/* 某段时间内最热文章
 * Reference: http://www.wprecipes.com/rarst-asked-how-to-get-most-commented-posts-of-the-week
 * Edit: zwwooooo
 */
function most_comm_posts($days=7, $nums=10) { //$days参数限制时间值，单位为‘天’，默认是7天；$nums是要显示文章数量
  global $wpdb;
  $today = date("Y-m-d H:i:s"); //获取今天日期时间
  $daysago = date( "Y-m-d H:i:s", strtotime($today) - ($days * 24 * 60 * 60) );  //Today - $days
  $result = $wpdb->get_results("SELECT comment_count, ID, post_title, post_date FROM $wpdb->posts WHERE post_date BETWEEN '$daysago' AND '$today' ORDER BY comment_count DESC LIMIT 0 , $nums");
  $output = '';
  if(empty($result)) {
    $output = '<li>None data.</li>';
  } else {
    foreach ($result as $topten) {
      $postid = $topten->ID;
      $title = $topten->post_title;
      $commentcount = $topten->comment_count;
      if ($commentcount != 0) {
        $output .= '<li><a href="'.get_permalink($postid).'" title="'.$title.'">'.$title.'</a> ('.$commentcount.')</li>';
      }
    }
  }
  echo $output;
}

然后在需要的地方调用函数，30, 10 分别指日期（过去30天内）和显示文章数（10篇）。

<h3>近期最热文章</h3>
<ul>
   <?php if(function_exists('most_comm_posts')) most_comm_posts(30, 10); ?>
</ul>

代码来源：ZWW.Me