Session start, destroy, start, exception issue

Hello,

First sorry if it's not the right place to ask about this. In my
defense I tried to google about this but couldn't find any relevant
information.

In PHP it seems perfectly normal to start a session, destroy it, and
then start it again. You can do it as much as you like.

http://php.net/session_destroy

Lots of login/logout code is written like this. On logout session is
destroyed and then started again.

Zend_Session destroy() method throws an exception if:

if (self::$_sessionStarted && self::$_destroyed) {
            require_once 'Zend/Session/Exception.php';
            throw new Zend_Session_Exception('The session was
explicitly destroyed during this request, attempting to re-start is
not allowed.');
        }

To me it seems that Zend_Session _changes_ the way sessions work.

I would like to ask if there is a reason for this? Are there any
workarounds? Btw in my current situation using Zend_Auth is not a
viable option.

Thanks for any answer,
Bye!