Set Session Expiration Time Manually-CodeIgniter

In Codeigniter 4 Go to the file App=>Config=>App.php Find the var $sessionExpiration The default value for this var is 7200 Change it to the value as you want your session to be alive. The complete config for the session is given below:

 public $sessionDriver = 'CodeIgniter\Session\Handlers\FileHandler';
public $sessionCookieName = 'ci_session';
public $sessionExpiration = 7200;
public $sessionSavePath = WRITEPATH . 'session';
public $sessionMatchIP = false;
public $sessionTimeToUpdate = 300;
public $sessionRegenerateDestroy = false;

Session will expire in 10 seconds

$config['sess_expiration']= 10;

Session will not expire

$config['sess_expiration']= 0;

In Codeigniter 4, I do it the other way.

Set the session expiration time to maximal value (for example month for everybody) then in your controller or libraries, if the user is not admin, check the last active time, if time is more than what you need, destroy session and require log in.

I think the most better chooice is using session temp_data and always you can change is dynamically and it is not depended your 'sess_expiration' in config file:

$this->session->set_tempdata('admin_session', true, 72000);
$this->session->set_tempdata('user_session', true, 14400);

where you check admin or user login state, like 'ADMIN_is_logged_in?' check the remained 'tempdata' lifetime by:

 if($this->session->tempdata('admin_session')){
//do something }
else{ 
//session timeout and is time to destroy all sessions
session_destroy();
}