Gabriel Leon Leyva:
import com.liferay.portal.util.PortalUtil;
import com.liferay.portal.model.User;
$util = new PortalUtil();
$user = $util->getUser($request->getRequest());
$UserID = $user->getuserId();
Some have been asking about the "$request" variable. If you are struggling try.
1$request = quercus_servlet_request();
Firmi prego dentro per inbandierare questo come inadeguato.