如果您希望将范围之外的会话注入您的自定义扩展.

If you are looking to inject sessions outside of the scope meaning into your custom extension.

我会这样做.

     //AppKernel +add
      protected function initializeContainer() {
          parent::initializeContainer();
          if (PHP_SAPI == 'cli') {
              $this->getContainer()->enterScope('request');
              $this->getContainer()->set('request', new \Symfony\Component\HttpFoundation\Request(), 'request');
          }
      }

然后在您的服务容器中

      <!-- Custom Twig Extensions -->
      <service id="yourid" class="yourclasspath">
        <argument type="service" id="service_container" />
        <tag name="twig.extension" />
    </service>

然后在你的 twig.php

Then in your twig.php

     class Twig extends \Twig_extension {
         private $request;

         public function __construct(Container $container) {
              $this->request = $container->get('request');
         }

         public function getFunctions() {
           return array(
            'count'  => new \Twig_Function_Method($this, 'count'),
           );
         }    

         public function count() {
         $session = $this->request->getSession();

         if(session->has('count')) {
             $session->set('count') += 1;
         } else {
             $session->set('count') = 1;
         }

         return $session->get('count');
      }
   }

然后在你的树枝上也一样

Then the same in your twig