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I've been trying to integrate some PHP pages of my own with some
existing code. The details of this are for the support forums for that
code (where I have been asking questions), but I wonder if someone here
can enlighten me as to why the problematic code is having the effect it is.

For reasons I don't know, if the PHP version is 5 or greater,
register_long_a rrays is false and $_SESSION exists, the following
statement is executed:


This line is stopping any subsequent changes to the $_SESSION variable
from being stored in the session file on the server - changes can be
made, but are all lost at the end of the page processing and the value
reverts to whatever it was before the script was executed.

Is this behaviour by design? Why does it happen? Is there a standard
reason why anyone would include a statement like this (security?)?

I'm seeing this behaviour on PHP 5.1.3 / Win 2003 sp1 / IIS 6 and on PHP
5.1.6 / Win XP sp2 / Apache 2.

Thanks for any help!

Nov 1 '06
12 41226
Pedro Graca wrote:
Michael Windsor wrote:
>Directive Local Value Master Value
>session.save_p ath no value no value

I believe `session.save_p ath` is your problem.
If there's no value for it, PHP will use "/tmp". Do you have a "C:\tmp"
directory on your disk?

Try changing php.ini and specify an existing directory for the
session.save_pa th entry, or create a "C:\tmp" directory.

Or do it within a test script first:
I looked at this previously - I was examining the session files to see
if I could determine the problem. Session information is being stored in
C:\WINDOWS\Temp already; presumably PHP is defaulting to the system temp
path in the absence of a defined value.

Anyway, I'm sorry to report that adding the session_save_pa th() call
doesn't make any difference to the running of the script: the value is
still only incremented when $_SESSION is not assigned to another variable.

Just to make sure, I changed php.ini to specify a session path, but
again, it didn't make any difference, with or without the
session_save_pa th() call.

Are you running PHP on Windows? I'm wondering if that's the deciding factor.

I really appreciate your help!

Nov 7 '06 #11
Michael Windsor wrote:
Are you running PHP on Windows? I'm wondering if that's the deciding factor.
No, I'm on Linux, still with PHP 4.3.

I'm out of explanations for the behaviour you see.
Try switching on

zend.ze1_compat ibility_mode


I doubt it will have an effect, but it will not do any harm to try it.

I (almost) never check the dodgeit address.
If you *really* need to mail me, use the address in the Reply-To
header with a message in *plain* *text* *without* *attachments*.
Nov 7 '06 #12
Pedro Graca wrote:
Michael Windsor wrote:
>Are you running PHP on Windows? I'm wondering if that's the deciding factor.

No, I'm on Linux, still with PHP 4.3.

I'm out of explanations for the behaviour you see.
Try switching on

zend.ze1_compat ibility_mode


I doubt it will have an effect, but it will not do any harm to try it.
It would seem that this is a bug in PHP
(http://bugs.php.net/bug.php?id=38833). Not only that, but the
maintainers of PHP are unwilling to fix it
(http://bugs.php.net/bug.php?id=3792 6)!

IMO, this is not a "documentat ion bug", as some have tried to suggest,
but a flaw in the implementation of the superglobals, or at the very
least in $_SESSION. I have made a contribution to the tracker to reflect
my viewpoint.

Nov 7 '06 #13

This thread has been closed and replies have been disabled. Please start a new discussion.

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