Get Vimeo source url

vimeoid2url.php

function vimeoid2url($id) {
	$xmlurl = "http://www.vimeo.com/moogaloop/load/clip:{$id}";
	$videoxml = file_get_contents($xmlurl);
	preg_match('|<request_signature>(.*)</request_signature>|i',$videoxml,$sig);
	preg_match('|<request_signature_expires>(.*)</request_signature_expires>|i',$videoxml,$sigexp);


	$url = "http://www.vimeo.com/moogaloop/play/clip:{$id}/{$sig[1]}/{$sigexp[1]}/?q=sd";
	return $url;
}