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symfony2bundle外自己新建个php文件能不能调用bundle内session值?怎么调用?

php:

 session_start();  
 echo $_SESSION['XXX'];    //获取不到值  

回复内容:

php:

 session_start();  
 echo $_SESSION['XXX'];    //获取不到值  

use Symfony\Component\HttpFoundation\Session\Session;

$session = new Session();
$session->start();