Joomla - get user groups programmatically

The following code illustrates how to access groups an user is subscribed with Joomla ACL. Groups ids are returned in an array

$user = JFactory::getUser();
$userId = $user->id;

jimport( 'joomla.access.access' );
$groups = JAccess::getGroupsByUser($userId);

print_r($groups);

$user = JFactory::getUser();

$userId = $user->id;

jimport( 'joomla.access.access' );

$groups = JAccess::getGroupsByUser($userId);

print_r($groups);

To test the code, do not forget to lougout and login again should you have modified the user group from the back-end

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