Cake\Controller\Component\AuthComponent::__set PHP Метод

    public function __set($name, $value)
    {
        if ($name === 'sessionKey') {
            $this->_storage = null;
            if ($value === false) {
                $this->config('storage', 'Memory');
                return;
            }
            $this->config('storage', 'Session');
            $this->storage()->config('key', $value);
            return;
        }
        $this->{$name} = $value;
    }