hi
i am experiencing a major problem with sessions expiring randomly in some of my
apps. i will log in and start clicking around and then i will eventually
arrive at a page that tells me that i'm not logged in anymore. this happens
apparently randomly. i have seen it on ie6, ie for mac, netscape 4.7 for pc,
and mozilla
the apps are hosted on
freebsd 4.7-release p2
apache 1.3.27
php version 4.2.3
compiled with --enable-trans-sid
i can't go into production if there's the possibility that users will be
randomly logged off. i went through all of my code over the weekend, and i
don't think i can attribute this to a miscoding:
when a user logs in, i create a session with
session_start();
$valid_user=$_POST['username'];
session_register("valid_user");
i have the following code at the top of each page to check to see if the session
is valid:
session_start();
$valid_user=$_SESSION['valid_user'];
global $valid_user;
if (session_is_registered("valid_user")
{...function to spit out an error message if the session is not valid...;}
i have a logout page that destroys the session
session_start();
session_destroy();
i also have a javascript timer in the header of every page that redirects to the
logout page if the user has been inactive for 20 minutes.
i have played around with session.gc_probability, setting it to 100, but that
doesn't seem to have fixed the problem.
this is a huge problem.
if anyone can give some advice, i'd really appreciate it.
thanks
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