php正則連接中文本程序

$htm = "<a href='http://www.php100.net'>test1</a><br />" .
          "<a href='http://www.php100.net'>test2</a><br />" .
          "<a href='http://www.php100.net'>test3</a><br />" .
          "<a href='http://www.php100.net'>test4</a><br />" .
          "<a href='http://www.php100.net'>test5</a><br />";

   echo $htm . "<br />";
   echo stripthetag($htm);

function stripthetag($link) {

   return (preg_replace('@<[/!]*?[^<>]*?>@si', ' ', $link));
}