目录 用过论坛的童鞋们都知道,在帖子内容中经常会出现外部链接,或许演示地址的链接,外链出现的过多会导致网站权重降低,在此优化就需要给外链加上rel="nofollow"属性提高优化效果,因为很多帖子是会员发的,会员并不知道这个,也不可能让管理员后期一个个修改,这里给大家介绍一个方法让系统自动把外链都加上nofollow属性,修改方法如下: 1. 打开目录source/function/function_ discuzcode.php文件,查找以下代码进行修改: function parseurl($url, $text, $scheme) { global $_G; if(!$url && preg_match("/((https?|ftp|gopher|news|telnet|rtsp|mms|callto|bctp|thunder|qqdl|synacast){1}:\/\/|www\.)[^\[\"']+/i", trim($text), $matches)) { $url = $matches[0]; $length = 65; if(strlen($url) > $length) { $text = substr($url, 0, intval($length * 0.5)).' ... '.substr($url, - intval($length * 0.3)); } $url = nofollow($url); return ''.$text.''; } else { $url = substr($url, 1); if(substr(strtolower($url), 0, 4) == 'www.') { $url = 'http://'.$url; } $url = !$scheme ? $_G['siteurl'].$url : $url; return ''.$text.''; } } 2.在超链接前添加 rel="nofollow" 修改后的代码: function parseurl($url, $text, $scheme) { global $_G; if(!$url && preg_match("/((https?|ftp|gopher|news|telnet|rtsp|mms|callto|bctp|thunder|qqdl|synacast){1}:\/\/|www\.)[^\[\"']+/i", trim($text), $matches)) { $url = $matches[0]; $length = 65; if(strlen($url) > $length) { $text = substr($url, 0, intval($length * 0.5)).' ... '.substr($url, - intval($length * 0.3)); } $url = nofollow($url); return 'rel="nofollow">'.$text.''; } else { $url = substr($url, 1); if(substr(strtolower($url), 0, 4) == 'www.') { $url = 'http://'.$url; } $url = !$scheme ? $_G['siteurl'].$url : $url; return 'rel="nofollow">'.$text.''; } } 3.发布新帖并加入外链后,F12或查看源代码外链显示 rel="nofollow" |