WordPress站点自定义添加外链GO跳转

/*文章外部链接加上跳转*/
add_filter('the_content','the_content_nofollow',999);  
function the_content_nofollow($content)  
{  
    preg_match_all('//',$content,$matches);  
    if($matches){  
        foreach($matches[2] as $val){  
            if(strpos($val,'://')!==false && strpos($val,home_url())===false && !preg_match('/.(jpg|jepg|png|ico|bmp|gif|tiff)/i',$val)){  
                $content=str_replace("href="$val"", "href="".home_url()."/go/?url=$val" ",$content);  
            }  
        }  
    }  
    return $content;  
}
 
 
/*评论处的链接新窗口打开并添加跳转*/
function get_comment_author_link_new($return, $author, $comment_ID = 0) {
$comment = get_comment( $comment_ID );
$url = get_comment_author_url( $comment );
$author = get_comment_author( $comment );
 
if ( empty( $url ) || 'http://' == $url )
$return = $author;
else
 
$return = "$author";
$return=str_replace("href='$url'", "href="".home_url()."/go/?url=$url" ",$return);//添加go跳转
 
return $return;
}
add_filter('get_comment_author_link', 'get_comment_author_link_new', 10, 3);