Mine

class convertid{    	function communityid($id){		if (substr($id,-1)%2==0) $server=0; else $server=1;			$auth=bcsub($id,'76561197960265728');			$auth=bcsub($auth,$server);			$auth=bcdiv($auth,2);		$tempid = "STEAM_0:".$server.':'.$auth;	}   };echo $convertid->communityid(76561197995624584); // Should work right?