diff --git a/components/http_foundation/session_configuration.rst b/components/http_foundation/session_configuration.rst index 66d0087189d..ca5524adbe4 100644 --- a/components/http_foundation/session_configuration.rst +++ b/components/http_foundation/session_configuration.rst @@ -72,7 +72,6 @@ The Symfony HttpFoundation component provides some by default and these can easily serve as examples if you wish to write your own. * :class:`Symfony\\Component\\HttpFoundation\\Session\\Storage\\Handler\\PdoSessionHandler` -* :class:`Symfony\\Component\\HttpFoundation\\Session\\Storage\\Handler\\MemcacheSessionHandler` * :class:`Symfony\\Component\\HttpFoundation\\Session\\Storage\\Handler\\MemcachedSessionHandler` * :class:`Symfony\\Component\\HttpFoundation\\Session\\Storage\\Handler\\MongoDbSessionHandler` * :class:`Symfony\\Component\\HttpFoundation\\Session\\Storage\\Handler\\NullSessionHandler` @@ -262,58 +261,6 @@ particular cookie by reading the ``getLifetime()`` method:: The expiry time of the cookie can be determined by adding the created timestamp and the lifetime. -PHP 5.4 Compatibility -~~~~~~~~~~~~~~~~~~~~~ - -Since PHP 5.4.0, :phpclass:`SessionHandler` and :phpclass:`SessionHandlerInterface` -are available. Symfony provides forward compatibility for the :phpclass:`SessionHandlerInterface` -so it can be used under PHP 5.3. This greatly improves interoperability with other -libraries. - -:phpclass:`SessionHandler` is a special PHP internal class which exposes native save -handlers to PHP user-space. - -In order to provide a solution for those using PHP 5.4, Symfony has a special -class called :class:`Symfony\\Component\\HttpFoundation\\Session\\Storage\\Handler\\NativeSessionHandler` -which under PHP 5.4, extends from ``\SessionHandler`` and under PHP 5.3 is just a -empty base class. This provides some interesting opportunities to leverage -PHP 5.4 functionality if it is available. - -Save Handler Proxy -~~~~~~~~~~~~~~~~~~ - -A Save Handler Proxy is basically a wrapper around a Save Handler that was -introduced to seamlessly support the migration from PHP 5.3 to PHP 5.4+. It -further creates an extension point from where custom logic can be added that -works independently of which handler is being wrapped inside. - -There are two kinds of save handler class proxies which inherit from -:class:`Symfony\\Component\\HttpFoundation\\Session\\Storage\\Proxy\\AbstractProxy`: -they are :class:`Symfony\\Component\\HttpFoundation\\Session\\Storage\\Proxy\\NativeProxy` -and :class:`Symfony\\Component\\HttpFoundation\\Session\\Storage\\Proxy\\SessionHandlerProxy`. - -:class:`Symfony\\Component\\HttpFoundation\\Session\\Storage\\NativeSessionStorage` -automatically injects storage handlers into a save handler proxy unless already -wrapped by one. - -:class:`Symfony\\Component\\HttpFoundation\\Session\\Storage\\Proxy\\NativeProxy` -is used automatically under PHP 5.3 when internal PHP save handlers are specified -using the ``Native*SessionHandler`` classes, while -:class:`Symfony\\Component\\HttpFoundation\\Session\\Storage\\Proxy\\SessionHandlerProxy` -will be used to wrap any custom save handlers, that implement :phpclass:`SessionHandlerInterface`. - -From PHP 5.4 and above, all session handlers implement :phpclass:`SessionHandlerInterface` -including ``Native*SessionHandler`` classes which inherit from :phpclass:`SessionHandler`. - -The proxy mechanism allows you to get more deeply involved in session save handler -classes. A proxy for example could be used to encrypt any session transaction -without knowledge of the specific save handler. - -.. note:: - - Before PHP 5.4, you can only proxy user-land save handlers but not - native PHP save handlers. - .. _`php.net/session.customhandler`: http://php.net/session.customhandler .. _`php.net/session.configuration`: http://php.net/session.configuration .. _`php.net/memcached.setoption`: http://php.net/memcached.setoption pFad - Phonifier reborn

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