RegistrationModel::validateUserPassword PHP Method

    public static function validateUserPassword($user_password_new, $user_password_repeat)
    {
        if (empty($user_password_new) or empty($user_password_repeat)) {
            Session::add('feedback_negative', Text::get('FEEDBACK_PASSWORD_FIELD_EMPTY'));
            return false;
        }
        if ($user_password_new !== $user_password_repeat) {
            Session::add('feedback_negative', Text::get('FEEDBACK_PASSWORD_REPEAT_WRONG'));
            return false;
        }
        if (strlen($user_password_new) < 6) {
            Session::add('feedback_negative', Text::get('FEEDBACK_PASSWORD_TOO_SHORT'));
            return false;
        }
        return true;
    }