wordpress实现读者墙的方法

<?php
/*
Template Name: Reader wall
*/
?>

<!-- start 读者墙 Edited By iSayme-->
<?php
$query="SELECT COUNT(comment_ID) AS cnt, comment_author, comment_author_url, comment_author_email FROM (SELECT * FROM $wpdb->comments LEFT OUTER JOIN $wpdb->posts ON ($wpdb->posts.ID=$wpdb->comments.comment_post_ID) WHERE comment_date > date_sub( NOW(), INTERVAL 24 MONTH ) AND user_id='0' AND comment_author_email != '改成你的邮箱账号' AND post_password='' AND comment_approved='1' AND comment_type='') AS tempcmt GROUP BY comment_author_email ORDER BY cnt DESC LIMIT 39";//
?>

<?php
$wall = $wpdb->get_results($query);
$maxNum = $wall[0]->cnt;
foreach ($wall as $comment)
{
$width = round(40 / ($maxNum / $comment->cnt),2);//此处是对应的血条的宽度
if( $comment->comment_author_url )
$url = $comment->comment_author_url;
else $url="#";
$avatar = get_avatar( $comment->comment_author_email, $size = '36', $default = get_bloginfo('wpurl').'/avatar/default.jpg' );
$tmp = "<li><a target="_blank" href="".$comment->comment_author_url."">".$avatar."<em>".$comment->comment_author."</em> <strong>+".$comment->cnt."</strong></br>".$comment->comment_author_url."</a></li>";
$output .= $tmp;
}
$output = "<ul class="readers-list">".$output."</ul>";
echo $output ;
?>
<!-- end 读者墙 -->

.readers-list{line-height:18px;text-align:left;overflow:hidden;_zoom:1}
.readers-list li{width:200px;float:left;*margin-right:-1px}
.readers-list a,.readers-list a:hover strong{background-color:#f2f2f2;background-image:-webkit-linear-gradient(#f8f8f8,#f2f2f2);background-image:-moz-linear-gradient(#f8f8f8,#f2f2f2);background-image:linear-gradient(#f8f8f8,#f2f2f2)}
.readers-list a{position:relative;display:block;height:36px;margin:4px;padding:4px 4px 4px 44px;color:#999;overflow:hidden;border:#ccc 1px solid;border-radius:2px;box-shadow:#eee 0 0 2px}
.readers-list img,.readers-list em,.readers-list strong{-webkit-transition:all .2s ease-out;-moz-transition:all .2s ease-out;transition:all .2s ease-out}
.readers-list img{width:36px;height:36px;float:left;margin:0 8px 0 -40px;border-radius:2px}
.readers-list em{color:#666;font-style:normal;margin-right:10px}
.readers-list strong{color:#ddd;width:40px;text-align:right;position:absolute;right:6px;top:4px;font:bold 14px/16px microsoft yahei}
.readers-list a:hover{border-color:#bbb;box-shadow:#ccc 0 0 2px;background-color:#fff;background-image:none}
.readers-list a:hover img{opacity:.6;margin-left:0}
.readers-list a:hover em{color:#EE8B17;font:bold 12px/36px microsoft yahei}
.readers-list a:hover strong{color:#EE8B17;right:150px;top:0;text-align:center;border-right:#ccc 1px solid;height:44px;line-height:40px}