wordpress无插件实现Gravatar头像功能：[1]

1、找到需要插入最新留言的地方。一般的博客类的都在首页侧边栏，打开模板文件（你的网站/wp-content/theme/当前模板）打开sidebar.php

2、在最新留言处添加<?phpglobal $wpdb;$sql = "SELE觊皱筠桡CT DISTINCT ID, post_title, post_password, comment_ID, comment_post_ID, comment_author, comment_date_gmt, comment_approved, comment_type,comment_author_url,comment_author_email, SUBSTRING(comment_content,1,14) AS com_excerpt FROM $wpdb->comments LEFT OUTER JOIN $wpdb->posts ON ($wpdb->comments.comment_post_ID = $wpdb->posts.ID) WHERE comment_approved = '1' AND comment_type = '' AND post_password = '' AND user_id='0' ORDER BY comment_date_gmt DESC LIMIT 10";$comments = $wpdb->get_results($sql);$output = $pre_HTML;foreach ($comments as $comment) {$output .= "\n<li>".get_avatar(get_comment_author_email('comment_author_email'), 32).strip_tags($comment->comment_author).":<br />" . " <a href=\"" . get_permalink($comment->ID) ."#comment-" . $comment->comment_ID . "\" title=\"on " .$comment->post_title . "\">" . strip_tags($comment->com_excerpt)."</a></li>";}$output .= $post_HTML;echo $output;?>这段代码显示日志作者及浏览者的留言

3、还有段代码不显示作藤舔趾贶者留言。为 什么要去掉作者的留言呢，道理很简单，一般留言都显示在侧边，如果设置显示10条留言，正好有10位浏览者留言，而作者可能在同一时间内分别进行回复，结 果就是侧边显示的留言全部是作者自己的，不利于站长及时查看是否有新留言并回复。代码如下：<?phpglobal $wpdb;$sql = "SELECT DISTINCT ID, post_title, post_password, comment_ID, comment_post_ID, comment_author, comment_date_gmt, comment_approved, comment_type,comment_author_url,comment_author_email, SUBSTRING(comment_content,1,14) AS com_excerpt FROM $wpdb->comments LEFT OUTER JOIN $wpdb->posts ON ($wpdb->comments.comment_post_ID = $wpdb->posts.ID) WHERE comment_approved = '1' AND comment_type = '' AND post_password = '' AND user_id='0' ORDER BY comment_date_gmt DESC LIMIT 10";$comments = $wpdb->get_results($sql);$output = $pre_HTML;foreach ($comments as $comment) {$output .= "\n<li>".get_avatar(get_comment_author_email('comment_author_email'), 32).strip_tags($comment->comment_author).":<br />" . " <a href=\"" . get_permalink($comment->ID) ."#comment-" . $comment->comment_ID . "\" title=\"on " .$comment->post_title . "\">" . strip_tags($comment->com_excerpt)."</a></li>";}$output .= $post_HTML;echo $output;?>