title: Session dies in CodeIgniter
body: <p>I have an app built in CI and I would like that sessions don't die unless users close their browser. In my config file I have the following:</p>
  
  <pre><code>$config['sess_cookie_name']     = 'ci_session';
  $config['sess_expiration']      = 0;
  $config['sess_encrypt_cookie']  = FALSE;
  $config['sess_use_database']    = FALSE;
  $config['sess_table_name']      = 'ci_sessions';
  $config['sess_match_ip']        = FALSE;
  $config['sess_match_useragent'] = TRUE;
  $config['sess_time_to_update']  = 0;
  </code></pre>
  
  <p>But session still dies after a period of time, is there any other configuration I need to do? Maybe directly on the server that might be causing the session to die? Thanks!</p>