ip2long problem

LoginForm.php

    /**
     * Logs in a user using the provided username and password.
     *
     * @return boolean whether the user is logged in successfully
     */
    public function login()
    {
        if ($this->validate()) {
            $this->user->setAttribute('logged_in_from', ip2long(\Yii::$app->getRequest()->getUserIP()));
            $this->user->setAttribute('logged_in_at', time());
            $this->user->save(false);
            return \Yii::$app->getUser()->login($this->user, $this->rememberMe ? $this->module->rememberFor : 0);
        } else {
            return false;
        }
    }