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FF loses $_SESSION data

  • 4 uphendule
  • 2 zinale nkinga
  • 12 views
  • Igcine ukuphendulwa ngu docjojo

docjojo
docjojo
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Hello, I set an session variable in my index.php, say

session_start(); $_SESSION['test']='hello';

I call another skript on the server via AJAX that includes something like:

session_start(); echo ($_SESSION['test']);

This will result in the output of "hello" for some time.

I have a timer running to call the AJAX function every 20secs and sometimes after a few minutes, sometimes after a few hours, FF loses the session variable.

In other words, $_SESSION['test'] is not set anymore. I can echo session_id(); and verify, that the session is still runing, so does the session cookie, but the complete $_SESSION array is lost.

Any ideas?

Regards, Chris.

Hello, I set an session variable in my index.php, say session_start(); $_SESSION['test']='hello'; I call another skript on the server via AJAX that includes something like: session_start(); echo ($_SESSION['test']); This will result in the output of "hello" for some time. I have a timer running to call the AJAX function every 20secs and sometimes after a few minutes, sometimes after a few hours, FF loses the session variable. In other words, $_SESSION['test'] is not set anymore. I can echo session_id(); and verify, that the session is still runing, so does the session cookie, but the complete $_SESSION array is lost. Any ideas? Regards, Chris.

All Replies (4)

jscher2000 - Support Volunteer
jscher2000 - Support Volunteer
  • Top 10 Contributor
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It is my understanding that the browser's role is limited to sending the cookie. If the associated session gets messed up, that sounds like a server/PHP problem...

Do your logs show any unexpected requests for another script that could possibly affect $_SESSION['test']?

Edit: just noticed this post is a week old! This forum focuses on end-user support. You can find more web development help on the mozillaZine Web Development board. Separate forum, separate registration.

Okulungisiwe ngu jscher2000 - Support Volunteer

docjojo
docjojo Umnikazi wombuzo
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Hello jscher2000,

no, it looks like it get's lost out of the blue, but my service provider is working on it.

However, as this only happens with FF, I wasn't sure whether it is a server problem. IE, Safari and even FF under Windwows work just fine. It only happens with FF on my mac machine - could that be related to ADD ONs such as Firebug/FirePHP?

Regards, Chris.

jscher2000 - Support Volunteer
jscher2000 - Support Volunteer
  • Top 10 Contributor
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Does any of your code call session_unset() or session_destroy()? Either could clear the variables without invalidating the session itself. Otherwise, I don't see how the session id could remain the same. Admittedly I don't have a lot of experience with PHP.

In case caching is an issue, do you ensure you are bypassing the cache in your AJAX call by adding a parameter such as the current time?

docjojo
docjojo Umnikazi wombuzo
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Hi jscher2000,

no, not within the script that is repeatedly called. And the first couple of times it works just fine. Only after I a while the session get's lost.

The current script does not have a parameter like that, but when I tried to find the error I also tried it with an iframe and also with the .src of an image - so not with AJAX, and I used a randam parameter to make sure it is not loaded from cache - still with the same result ...

Regards, Chris.