How do you start a memcached session in symfony2?

Question

I'll try to be as detailed as possible because I was searching for now , 75 hours for a solution .. Brace yourselves.. here we go : I'm trying to implement the `MemcacheD` session handler for Symfony2 : I have downloaded the necessary libraries and then configured Symfony2 as follows: In `app/config.yml` : ``` imports: # .... - { resource: services/session.yml } framework: # .... session: handler_id: session.handler.memcached ``` `app/config/parameters.yml`: ``` session_memcached_host: 127.0.0.1 session_memcached_port: 11211 session_memcached_prefix: ng_ session_memcached_expire: 43200 ``` `app/services/session.yml` : ``` services: session.memcached: class: Memcached arguments: persistent_id: %session_memcached_prefix% calls: - [ addServer, [ %session_memcached_host%, %session_memcached_port% ]] session.handler.memcached: class: Symfony\Component\HttpFoundation\Session\Storage\Handler\MemcachedSessionHandler arguments: [@session.memcached, { prefix: %session_memcached_prefix%, expiret…

Accepted Answer

Symfony full stack framework

If you use the full stack Symfony framework, than configuring memcached as a session handler is as simple as specifying it in your php.ini:

```
session.save_handler=memcached
session.save_path=localhost:11211
```

Make sure that the `handler_id` is set to null (`~`) in your `app/config/config.yml`. This way Symfony will use the native php handler:

```
framework:
    session:
        # handler_id set to null will use default session handler from php.ini
        handler_id:  ~
```

Now you can start using your session. It is going to be stored in memcached.

Accessing the session

Session can be accessed from the `Request` object:

```
$request->getSession()->set('name', 'Kuba');
```

HttpFoundation component

The same can be set up outside of a full stack framework with the HttpFoundation component alone:

```
use Symfony\Component\HttpFoundation\Request;
use Symfony\Component\HttpFoundation\Session\Session;
use Symfony\Component\HttpFoundation\Session\Attribute\NamespacedAttributeBag;
use Symfony\Component\HttpFoundation\Session\Storage\NativeSessionStorage;

$storage = new NativeSessionStorage(array());
$session = new Session($storage, new NamespacedAttributeBag());

$request = Request::createFromGlobals();
$request->setSession($session);
```

The above snippet sets the session up just like the full stack framework does (by default). This way, the script you'll put this code in, will share the session with a full Symfony application.

How do you start a memcached session in symfony2?

Solution

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