PHP Session::getMetadataBag方法代碼示例

 /**
  * Initialize the session.
  *
  * This is something you might want to override in your controller so you can
  * redirect to a page with a message about being logged out after detecting the session has expired.
  *
  * @var int $session_expiration Session Expiration in seconds
  */
 protected function initializeSession($session_expiration = null)
 {
     /**
      * Setup the session with cookie expiration of one week. This will
      * allow the session to persist even if the browser window is closed.
      * The session expiration will still be respected (default 1 hour).
      */
     $this->session = new Session(new \Symfony\Component\HttpFoundation\Session\Storage\NativeSessionStorage(['cookie_lifetime' => 604800]));
     $this->config->load('config');
     // Should session cookie be http only? Default true to reduce XSS attack vector.
     $session_cookie_httponly = (bool) $this->config->get('session_cookie_httponly', true);
     ini_set('session.cookie_httponly', $session_cookie_httponly);
     // We need a unique session name for this app. Let's use last 10 characters the file path's sha1 hash.
     try {
         $this->session->setName('TSAPP' . substr(sha1(__FILE__), -10));
         $this->session->start();
         // Default session expiration 1 hour.
         // Can be overridden in method param or by setting session_expiration in config.php
         $session_expiration = !empty($session_expiration) ? $session_expiration : $this->config->get('session_expiration', 3600);
         // Is this session too old?
         if (time() - $this->session->getMetadataBag()->getLastUsed() > $session_expiration) {
             $this->session->invalidate();
         }
     } catch (\LogicException $e) {
         // Session already active, can't change it now!
     }
 }

 /**
  * Função para validar a sessão
  *
  * @param Session $session
  * @return bool
  */
 public function checkSession(Session $session)
 {
     $logger = $this->get('logger');
     $session->getMetadataBag()->getCreated();
     $session->getMetadataBag()->getLastUsed();
     if (time() - $session->getMetadataBag()->getLastUsed() > $this->maxIdleTime) {
         $session->invalidate();
         $logger->error("Sessão inválida:\n" . $session->getId());
         //throw new SessionExpired(); // direciona para a página de sessão expirada
         return false;
     } else {
         return true;
     }
 }