EllisLab/CodeIgniter — pull request #1500 by Razican (2012-06-17 17:13:59+00:00)
Title: Change the session's expiration time

I have been looking how to do a "Remember Me" script, and I have thought that if we have this function on the session library it would be much more easier.

Now, with $this->session->set_expiration() you can change the expiration time for the current session.