以前老版本2.2及以前的session用法是
$session = $this->getRequest()->getSession(); $session->set('foo', 'bar'); $foobar = $session->get('foobar');
后来Symfony2.3开始$this->getRequest()方法被废弃,session的使用方法就变成了
use SymfonyComponentHttpFoundationRequest; public function indexAction(Request $request) { $session = $request->getSession(); // store an attribute for reuse during a later user request $session->set('foo', 'bar'); // get the attribute set by another controller in another request $foobar = $session->get('foobar'); // use a default value if the attribute doesn't exist $filters = $session->get('filters', array()); }