Destroy A session variable.

[saidbakr]

Hi,
Suppose,
I assigned $var1, $var2 and $var3 as a session variables.
In a certain step of the application I want to unasign or delete $var1
i.e I want to destroy that variable only.
I can not use session_destroy() because it will destroy all other variables too.

So, How can I do that?

[cosminb]

you can try:
unset($_SESSION['varname']);

I didn't tried it but I guess it will work

[GilesGuthrie]

I'm trying to do something similar, except that I do actually want to destroy the session. I find that if I call session_destroy(), it doesn't kill the variable within the session. If you go to another page that re-starts the session, it retains the initial value that's within the session.

I'm getting around it by setting the variable to NULL in the 'Logout' page, but I would appreciate any better suggestions...

[Weedpacket]

Originally posted by GilesGuthrie
I'm trying to do something similar, except that I do actually want to destroy the session. I find that if I call session_destroy(), it doesn't kill the variable within the session.

unset($SESSION['sessionvar']) will destroy the session variable both in the current script and in the session data. $SESSION=array(); will do what for for every session variable.