本文实例讲述了Symfony2之session与cookie用法。分享给大家供大家参考，具体如下：
session操作：
1. Set Session：
public function testSetSession() { $session = $this->getRequest()->getSession(); $session->set($sessionName, $sessionValue );} 2. Get Session：
public function testGetSession() { $session = $this->getRequest()->getSession(); $username = $session->get($sessionName);} 3. Clear Session：
public function testClearSession() { $session = $this->getRequest()->getSession();//清除session $session->clear();} cookie操作：
1. Set Cookie
use Symfony/Component/HttpFoundation/Response;use Symfony/Component/HttpFoundation/Cookie;public function testSetCookie($name, $value, $expire=0){ $response = new Response(); $response->headers->setCookie(new Cookie($name, $value, time() + $expire)); $response->send(); // 包括 sendHeaders()、sendContent()} 2. Get Cookie：
public function testGetCookie() { $request = $this->getRequest(); return $request->cookies->all();} 3. Clear Cookie：
public function testClearCookie() { $response = new Response(); $response->headers->setCookie(new Cookie($name, $value, -1)); $response->send();} 4. twig模板调用cookie：
{{ app.request.cookies.get('cookie_name') }} 希望本文所述对大家基于Symfony框架的PHP程序设计有所帮助。
