i have a associative session array
$SESSION['common']['do']
$SESSION['common']['id']
$_SESSION['common']['msg']
When i try to unset the whole $_SESSION['common'] var
session_unregister("common"); works
unset($_SESSION['common']); does not work
when i try to unset only one element $_SESSION['common']['do']
unset($SESSION['common']['do']) works
session_unregister($SESSION['common']['do']) does not work
Can anyone explain.