Hi !
I have a very weird issue since the last Apache upgrade (-> 2.2.8-r3, a month ago), but I'm not sure it is related (well, I'm
pretty sure it's not).
Like many people, I've written an application that use PHP session variables, like
$_SESSION["my_variable"].
Sometimes (it doesn't happen all the time), _some_ of these variables are not written in the session file and they are lost
after a simple header("Location:...); (same domain). The session file is in the right directory (permissions are fine), but some
of my variables are missing.
The facts :
- Apache 2.2.9 + PHP 5.2.6_rc4 running on a Gentoo (up-to-date)
- all my scripts begin with session_start(). I've tried to add session_write_close() before every header(Location:...) call, it
doesn't help.
- I didn't change anything in my program (it has been running just fine for 2 years), it just began to fail from time to time (I
would say 10 times a day). There is no hidden unset() function : it would fail for everyone.
- these variables are all set correctly, and they don't have reserved names.
- only a few variables disappear, but they are always the same ones (could it
depend on their position in the session file ?!?)
- the session files are very small (max 100ko)
- it seems that it doesn't depend on the browser, but IE6 and IE7 seem to be the most affected ones (it may be because my users
mostly use these browsers).
- I can't reproduce this issue from my local network (any OS/browser - it would
be too easy :)
- reverting to the previous stable Apache and/or PHP versions doesn't help.
- I didn't change any php.ini directive.
Any idea ?
Thanks !
PS: if you need more details, just ask. The only thing I can't do is pasting
the code : the scripts are quite huge.
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