주소 자동링크

<?php
function auto_link($text)
{
$ret = eregi_replace("([[:alnum:]]+)://([^[:space:]]*)([[:alnum:]#?/&=])", "<a href=\"\\1://\\2\\3\" target=\"_blank\" target=\"_new\" class=\"dd\">\\1://\\2\\3</a>", $text);
$ret = eregi_replace("(([a-z0-9_]|\\-|\\.)+@([^[:space:]]*)([[:alnum:]-]))", "<a href=\"mailto:\\1\" target=\"_new\" class=\"dd\">\\1</a>", $ret);
return($ret);
}
?>