Session Errors

Friends,

Now I have another problem. I have unset all session variables
(TWICE). And still sometimes, when I refresh pages, I get information
for the user who logged in before me.

Please advice. Thanks.

Hi Avinash!

On 5 Oct 2003 19:02:25 -0700, avinashkorwarkar@yahoo.com (Avinash
Korwarkar) wrote:

>Friends,
>
>Now I have another problem. I have unset all session variables
>(TWICE). And still sometimes, when I refresh pages, I get information
>for the user who logged in before me.
>
Did yoy maybe do it in a function?

I found it very surprising as well, but unset does unset superglobals
in a function only in the local context. That means they are unchanged
outside. That behaviour is somehow hidden on www.php.net in the
descriptions of unset and the superglobals.

Use $_SESSION["x"] = array() instead.


HTH,

Jochen


--
Jochen Daum - CANS Ltd.
PHP DB Edit Toolkit -- PHP scripts for building
database editing interfaces.
http://sourceforge.net/projects/phpdbedittk/

Jochen Daum <jochen.daum@cans.co.nz> wrote in
news:p4j1ov0ohl4ruf0e0drmi41pjo36ghq4s4@4ax.com:

> Did yoy maybe do it in a function?
>
> I found it very surprising as well, but unset does unset superglobals
> in a function only in the local context. That means they are unchanged
> outside. That behaviour is somehow hidden on www.php.net in the
> descriptions of unset and the superglobals.
>
> Use $_SESSION["x"] = array() instead.

The safest way in my experience is to use session_destroy()/unset().

KAH