code: public function write($sessionId, $sessionData) {
          $expire = $this->lifeTime === 0 ? 0 : strtotime('now') + $this->lifeTime;
  
          $this->cookie = new Cookie(
              $this->name,
              serialize([$expire, $sessionData]),
              $expire,
              $this->path,
              $this->domain,
              $this->secure,
              $this->httpOnly
          );
  
          return true;
      }
docs: {@inheritdoc}