+1 vote
in Web Development by (130 points)
I'm reading the Codeigniter 2.2 tutorial and I am not clear on how to use sessions for logging in

1 Answer

+1 vote
by (220 points)

Based on the docs, to do anything custom within session you need to load the session library. If you plan to use session throughout your application, I would recommend autoloading the library. You do this from within config/autoload.php.

$autoload['libraries'] = array('session');

Then you won't have to use $this->load->library('session'); on every page.

After the library is loaded, set your custom information, maybe based off some information from your database. So in your case, this would be in login.php:

$this->session->set_userdata('userId', 'myId'); where userId would be the name of the session variable, and myId would be the value.

Then, on subsequent pages (admin.php), you could check that the value is there.

if($this->session->userdata('userId') == '') { //take them back to signin }