title: Session doesn't get saved in symfony with Memcached
body: <p><strong>I can't store sessions in Memcached server !</strong> </p>
  
  <p>I installed Memcached for PHP and the server 
  I run the server with this command </p>
  
  <pre><code>memcached -u root -d -m 64 -l 127.0.0.1 -p 11211
  </code></pre>
  
  <p>I have this in php.ini in fpm and cli </p>
  
  <pre><code>extension=memcached.so
  session.save_handler = memcached
  session.save_path = unix:/tmp/memcached.sock
  </code></pre>
  
  <p>I followed this for symfony2 <br>
  <a href="https://gist.github.com/K-Phoen/4327229" rel="nofollow">https://gist.github.com/K-Phoen/4327229</a></p>
  
  <p>You think everything is good ? <br></p>
  
  <p>You are wrong , because <strong>I don't know !!</strong>
   why the sessions are not stored in memcached</p>
  
  <p>PS : I don't run the memcached server with <code>service memcached start</code> because that would be start the server in a different port with nobody as user ..
  <br>
  Help me debug this please.</p>