Does unset($_SESSION["var"]) also cause $HTTP_SESSION_VARS["var"] to be unset?

[MarkB423]

If I choose to unregister a Session variable on systems with register_globals OFF by simply unsetting an element of the $_SESSION array, will the element in the corresponding $HTTP_SESSION_VARS array also be unset?

What if I used: $_SESSION["var"] = NULL ? Also, and more importantly, would the $var variable still be registered in the session if register_globals is ON in php.ini?

[ednark]

yes... they are all one and the same variable... they are all linked to the same place

setting to NULL however is usually not good enough

to really get rid of the sucker use: [man]unset/man