note 44709 added to function.explode

I've got several domains "parked" on one account, and I use this code in my index.php to determine what domain I'm on. It lets me do a switch on the domain name without worrying about whether the page was accessed as "www.domainname.com", "domainname.com", or even "this.is.unusual.but.perfectly.legal.domainname.com". It works, though I wonder whether it's the most efficient way to strip all but the last two tokens from the string. <?php $domain = strtolower($_SERVER['HTTP_HOST']); // Break it up into pieces and only keep the last two $domary = explode('.', $domain); $parts = count($domary) - 2; // Get rid of everything but the last two for ($y=0; $y<$parts; $y++) { unset($domary[$y]); } $domain = implode('.', $domary); echo "Looks like you are on server $domain"; ?> ---- Manual Page -- http://www.php.net/manual/en/function.explode.php Edit -- http://master.php.net/manage/user-notes.php?action=edit+44709 Delete -- http://master.php.net/manage/user-notes.php?action=delete+44709&report=yes Reject -- http://master.php.net/manage/user-notes.php?action=reject+44709&report=yes Search -- http://master.php.net/manage/user-notes.php