Posted by Oli Filth on 09/27/05 02:02

Mikel Astiz said the following on 26/09/2005 08:45:
> Hi,
>
> I am looking for a simple way to detect session ends so I can update a
> session table. I am new to PHP and don't understand how such event can be
> handled, since there seems not to be a corresponding overridable function.
> I've found 'register_shutdown_function', but apparently it detects
> connection breaks while the page is being loaded (I'm not sure though).
>
> I supose it will always be possible to control timeouted sessions by
> polling, but I wouldn't like to do so. Of course, client side scripts are
> not enough. I want to handle broken connections and prevent from evil users
> too.
>

You can't handle session timeouts directly, and even if you could, it
would be unreliable/inconsistent as the timeouts are govenered by a
garbage collector.

Why don't you do the cleanup each time the script is run? i.e. assuming
you are keeping track of sessions in a table (with an associated
timestamp), then every time the script is run, look for entries with a
timestamp set too far in the past, and do the relevant cleanup.
(basically what Erwin said in his first reply)


--
Oli

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