Phalcon\Session\Adapter\Mongo::write PHP Метод

    public function write($sessionId, $sessionData)
    {
        if ($this->data === $sessionData) {
            return true;
        }
        $sessionData = ['_id' => $sessionId, 'modified' => new \MongoDate(), 'data' => $sessionData];
        $this->getCollection()->save($sessionData);
        return true;
    }