Codeigniter session expire so soon

Question

I set $config['sess_expiration'] = 0 but session still expires and the user id, which I set when the user login, sets as 0

Users generally use IE7 and Chrome.

Also sess_time_to_update is 300

How can I solve this?

Answer 1

这将使会议持续两天

$config['sess_expiration'] = ((60*60)*24)*2;