Going crazy with caching: Caching pages of logged in users

You know how HTTP caching works but need more? In this talk we look into ways to cache personalized content. We will look at Edge Side Includes (ESI) to tailor caching rules of fragments, and at the user context concept to differentiate cache entries by permission groups instead of by individual users. Examples will use the PHP library FOSHttpCache in combination with either Varnish or the Symfony HttpCache reverse proxy.