Method setGuestUser

public static function setGuestUser($guest = false)
{
    $p = PhocacartUtils::getComponentParameters();
    $guestCheckout = $p->get('guest_checkout', 0);
    $session = Factory::getSession();
    if ($guest && $guestCheckout == 1) {
        $session->set('guest', true, 'phocaCart');
    } else {
        self::cancelGuestUser();
    }
    return true;
}