Clear a session variable?

[Brian]

Apparently $_SESSION was incoporated into PHP by Satan himself. It works
fine if I access the variable like $var instead.

Brian <ThisIsNotMyReal@ddress.com> wrote in
news:Xns93C6A7FBE37EEnonenonecom@24.28.95.150:

> Seems simple enough, but I can't clear a session variable.
>
> $_SESSION["var"] = "";
>
> nope.
>
> unset($_SESSION["var"]);
>
> nope.
>
> How do I clear a session variable? Google groups isn't turning up
> anything, so it must be something completely obvious that I'm
> overlooking.
>

[Nikolai Chuvakhin]

Brian <ThisIsNotMyReal@ddress.com> wrote in message
news:<Xns93C6A7FBE37EEnonenonecom@24.28.95.150>...

>
> Seems simple enough, but I can't clear a session variable.
> $_SESSION["var"] = "";
> nope.
> unset($_SESSION["var"]);
> nope.
> How do I clear a session variable?

Let me guess: your register_globals is on. If so, you're dealing
with the infamous Bug #19586. There are two workarounds for it.
The commonly used one is:

unset ($_SESSION['var'], $var);

Some people reported that this one didn't work for them and
proposed an alternative one:

unset ($_SESSION['var'];
session_unregister ($var);

Hope this helps.

Cheers,
NC