PHP Warning – yii\base\ErrorException

    public function regenerateID($deleteOldSession = false)
    {
        if ($this->getIsActive()) {
            // add @ to inhibit possible warning due to race condition
            // https://github.com/yiisoft/yii2/pull/1812
            if (YII_DEBUG && !headers_sent()) {
                session_regenerate_id($deleteOldSession);
            } else {
                @session_regenerate_id($deleteOldSession);
            }
        }
    }
 

 
        // if no session is started, there is nothing to regenerate
        if (empty($oldID)) {
            return;
        }
 
        parent::regenerateID(false);
        $newID = session_id();
        // if session id regeneration failed, no need to create/update it.
        if (empty($newID)) {
            Yii::warning('Failed to generate new session ID', __METHOD__);
            return;
        }

        if ($this->enableAutoLogin) {
            $this->removeIdentityCookie();
        }
 
        $session = Yii::$app->getSession();
        if (!YII_ENV_TEST) {
            $session->regenerateID(true);
        }
        $session->remove($this->idParam);
        $session->remove($this->authTimeoutParam);
 
        if ($identity) {
            $session->set($this->idParam, $identity->getId());

    {
        $data = $this->getIdentityAndDurationFromCookie();
        if (isset($data['identity'], $data['duration'])) {
            $identity = $data['identity'];
            $duration = $data['duration'];
            if ($this->beforeLogin($identity, true, $duration)) {
                $this->switchIdentity($identity, $this->autoRenewCookie ? $duration : 0);
                $id = $identity->getId();
                $ip = Yii::$app->getRequest()->getUserIP();
                Yii::info("User '$id' logged in from $ip via cookie.", __METHOD__);
                $this->afterLogin($identity, true, $duration);
            }
        }

                $session->set($this->authTimeoutParam, time() + $this->authTimeout);
            }
        }
 
        if ($this->enableAutoLogin) {
            if ($this->getIsGuest()) {
                $this->loginByCookie();
            } elseif ($this->autoRenewCookie) {
                $this->renewIdentityCookie();
            }
        }
    }
 

     */
    public function getIdentity($autoRenew = true)
    {
        if ($this->_identity === false) {
            if ($this->enableSession && $autoRenew) {
                $this->_identity = null;
                $this->renewAuthStatus();
            } else {
                return null;
            }
        }
 
        return $this->_identity;

     * Returns a value indicating whether the user is a guest (not authenticated).
     * @return bool whether the current user is a guest.
     * @see getIdentity()
     */
    public function getIsGuest()
    {
        return $this->getIdentity() === null;
    }
 
    /**
     * Returns a value that uniquely represents the user.
     * @return string|int the unique identifier for the user. If `null`, it means the user is a guest.
     * @see getIdentity()

     */
    public function __get($name)
    {
        $getter = 'get' . $name;
        if (method_exists($this, $getter)) {
            // read property, e.g. getName()
            return $this->$getter();
        }
 
        // behavior property
        $this->ensureBehaviors();
        foreach ($this->_behaviors as $behavior) {
            if ($behavior->canGetProperty($name)) {

    {
        $_obInitialLevel_ = ob_get_level();
        ob_start();
        ob_implicit_flush(false);
        extract($_params_, EXTR_OVERWRITE);
        try {
            require($_file_);
            return ob_get_clean();
        } catch (\Exception $e) {
            while (ob_get_level() > $_obInitialLevel_) {
                if (!@ob_end_clean()) {
                    ob_clean();
                }

                    $this->renderers[$ext] = Yii::createObject($this->renderers[$ext]);
                }
                /* @var $renderer ViewRenderer */
                $renderer = $this->renderers[$ext];
                $output = $renderer->render($this, $viewFile, $params);
            } else {
                $output = $this->renderPhpFile($viewFile, $params);
            }
            $this->afterRender($viewFile, $params, $output);
        }
 
        array_pop($this->_viewFiles);
        $this->context = $oldContext;

     * @throws InvalidCallException if the view cannot be resolved.
     * @see renderFile()
     */
    public function render($view, $params = [], $context = null)
    {
        $viewFile = $this->findViewFile($view, $context);
        return $this->renderFile($viewFile, $params, $context);
    }
 
    /**
     * Finds the view file based on the given view name.
     * @param string $view the view name or the [path alias](guide:concept-aliases) of the view file. Please refer to [[render()]]
     * on how to specify this parameter.

    {
        $_obInitialLevel_ = ob_get_level();
        ob_start();
        ob_implicit_flush(false);
        extract($_params_, EXTR_OVERWRITE);
        try {
            require($_file_);
            return ob_get_clean();
        } catch (\Exception $e) {
            while (ob_get_level() > $_obInitialLevel_) {
                if (!@ob_end_clean()) {
                    ob_clean();
                }

                    $this->renderers[$ext] = Yii::createObject($this->renderers[$ext]);
                }
                /* @var $renderer ViewRenderer */
                $renderer = $this->renderers[$ext];
                $output = $renderer->render($this, $viewFile, $params);
            } else {
                $output = $this->renderPhpFile($viewFile, $params);
            }
            $this->afterRender($viewFile, $params, $output);
        }
 
        array_pop($this->_viewFiles);
        $this->context = $oldContext;

     * @throws InvalidCallException if the view cannot be resolved.
     * @see renderFile()
     */
    public function render($view, $params = [], $context = null)
    {
        $viewFile = $this->findViewFile($view, $context);
        return $this->renderFile($viewFile, $params, $context);
    }
 
    /**
     * Finds the view file based on the given view name.
     * @param string $view the view name or the [path alias](guide:concept-aliases) of the view file. Please refer to [[render()]]
     * on how to specify this parameter.

     * These parameters will not be available in the layout.
     * @return string the rendering result.
     * @throws InvalidParamException if the view file or the layout file does not exist.
     */
    public function render($view, $params = [])
    {
        $content = $this->getView()->render($view, $params, $this);
        return $this->renderContent($content);
    }
 
    /**
     * Renders a static string by applying a layout.
     * @param string $content the static string being rendered

        $args = $this->controller->bindActionParams($this, $params);
        Yii::trace('Running action: ' . get_class($this->controller) . '::' . $this->actionMethod . '()', __METHOD__);
        if (Yii::$app->requestedParams === null) {
            Yii::$app->requestedParams = $args;
        }
 
        return call_user_func_array([$this->controller, $this->actionMethod], $args);
    }
}

        }
 
        $result = null;
 
        if ($runAction && $this->beforeAction($action)) {
            // run the action
            $result = $action->runWithParams($params);
 
            $result = $this->afterAction($action, $result);
 
            // call afterAction on modules
            foreach ($modules as $module) {
                /* @var $module Module */

        $parts = $this->createController($route);
        if (is_array($parts)) {
            /* @var $controller Controller */
            list($controller, $actionID) = $parts;
            $oldController = Yii::$app->controller;
            Yii::$app->controller = $controller;
            $result = $controller->runAction($actionID, $params);
            if ($oldController !== null) {
                Yii::$app->controller = $oldController;
            }
 
            return $result;
        }

            $params = $this->catchAll;
            unset($params[0]);
        }
        try {
            Yii::trace("Route requested: '$route'", __METHOD__);
            $this->requestedRoute = $route;
            $result = $this->runAction($route, $params);
            if ($result instanceof Response) {
                return $result;
            } else {
                $response = $this->getResponse();
                if ($result !== null) {
                    $response->data = $result;

        try {
 
            $this->state = self::STATE_BEFORE_REQUEST;
            $this->trigger(self::EVENT_BEFORE_REQUEST);
 
            $this->state = self::STATE_HANDLING_REQUEST;
            $response = $this->handleRequest($this->getRequest());
 
            $this->state = self::STATE_AFTER_REQUEST;
            $this->trigger(self::EVENT_AFTER_REQUEST);
 
            $this->state = self::STATE_SENDING_RESPONSE;
            $response->send();