[Resolved] sessions not expiring

[freebie]

Hi,
I have an application that includes a login system, but the session doesn't seem to expire. The value of session.gc_maxlifetime set in php.ini is 1440 (seconds) which is 24 minutes. I can come back to the application an hour later, and it won't log me out. Each page includes a login check that has the following code (which works perfectly well on other servers).

if(!isset($_SESSION['LoggedIn'])){
  header("Location: /login.php?expired=true");
  exit;
}

I'm using PHP Version 4.3.4 on a RedHat Linux v9.x with apache 2.0.48

Any ideas as to why this doesn't expire?

[Weedpacket]

Look at the session settings immediately above session.gc_maxlifetime in php.ini.

[freebie]

Weedpacket, thanks for the help.

Here are all of my garbage collection related session values collected from phpinfo()

session.gc_divisor 100 100
session.gc_maxlifetime 1440 1440
session.gc_probability 1 1

I take it that I can just increase the gc_probability or decrease the gc_divisor to get the garbage collector to run more frequently. Realistically, I probably won't need to because this is just in test phase right now and so the site isn't getting a lot of sessions (thus the garbage collector simply wasn't getting run). Thanks again for the help.