字串中網址自動加上超連結

addLink.php

<?php
/*
* 字串中網址自動加上超連結
* via http://blog.kidwm.net/68
*/


function addLink($str) {

$str = preg_replace('#(http|https|ftp|telnet)://([0-9a-z\.\-]+)(:?[0-9]*)([0-9a-z\_\/\?\&\=\%\.\;\#\-\~\+]*)#i','<a 

href="\1://\2\3\4" rel="nofollow">\1://\2\3\4</a>', $str);

return $str;
}