Blog this & Yahoo! Share Bookmark in php webs

/* URL and Title */
$n_encode = urlencode(mb_convert_encoding($topic_title,"UTF-8","big5"));
$u_encode = urlencode('http://'.$_SERVER['SERVER_NAME'].$_SERVER['REQUEST_URI']);
   
/* Google Blog This */
$blogger_this = '<a target="blog_this" href="http://www.blogger.com/blog-this.g?t=&u='.$u_encode.'&n='.$n_encode.'">
<img src=/i/blogthis.gif valign=center border=0><u>Blogger</u></a>';
   
/* Yahoo MyWeb2 Share Bookmark */
$blogger_this .= ' :: <a target="yahoo_bookmark" href="http://myweb2.search.yahoo.com/myresults/bookmarklet?&ei=UTF-8&t='.
                  $n_encode.'&u='.$u_encode.'"><img border=0 src=http://tw.yahoo.com/favicon.ico><u>儲存分享書籤</u></a>';
                  
echo $blogger_this;