note 20001 added to ref.session

Question: I see this all over the manual: If you are using $HTTP_SESSION_VARS/$_SESSION and disable register_globals, do not use session_register(), session_is_registered() and session_unregister(). But they don't say why??? -- http://www.php.net/manual/en/ref.session.php http://master.php.net/manage/user-notes.php?action=edit+20001 http://master.php.net/manage/user-notes.php?action=delete+20001 http://master.php.net/manage/user-notes.php?action=reject+20001