php url formatting question

[mrthumbs]

www.domain.com
whatever.domain.com
domain.com

Is there a simple php command that
will strip all the bullshit out
and return:

domain.com

as output?

[PowerCum]

<?php

$myhost="doamin.com";

$host=$_SERVER["HTTP_HOST"];
$tmp=parse_url($host);
$scheme=$tmp[scheme]; 
$path=$tmp[path];
$query=$tmp[query];
$host=$tmp[host];
if ($host!=$myhost){
$url=($scheme."://".$myhost.$path.$query);
header("Location: $url");
}

?>

That will redirect all the stuff with no ptoblems

Hope this will help you

[mrthumbs]

gracias! Going to test it now!