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Date: Mon, 16 May 2011 15:41:29 +0200
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Subject: Re: [PHP-DEV] session_disconnect()
From: h.reindl@thelounge.net (Reindl Harald)

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There is no function needed if you use http://php.net/manual/de/function.=
session-write-close.php
like others do since ten years :-)

if you know that you no longer write to the session use it
this does not mean $_SESSION is lost
it means only that changes to $_SESSIOn are not available for other reque=
sts

Am 16.05.2011 15:37, schrieb Alain Williams:
> I am working on some AJAX callbacks. These need to open the session, ge=
t hold of stuff in $_SESSION
> and that is it ... they won't be changing the session data. The trouble=
 is that because the
> session file is locked the Asynchronicity of AJAX is reduced a bit, esp=
ecially if some of the
> server side calls need a lot of work.
>=20
> May I suggest:
>=20
>     session_disconnect();
>=20
> This would, in effect, close the session file but leave $_SESSION. This=
 would be easy to implement,
> just call the second callback to session_set_save_handler().
>=20
> This is NOT quite the same as a session_end() function since that would=
 presumably write the
> (changed) contents of $_SESSION back to where ever. With session_discon=
nect() any changes made
> to $_SESSION would be lost regardless of them being made before or afte=
r the call to session_disconnect().
>=20
> Another way of doing this would be to add an optional boolean argument =
to session_start() which
> would load $_SESSION and then disconnect. This is more intrusive in tha=
t changes to any user
> open functions (of session_set_save_handler()) would be needed. It migh=
t be a tiny bit faster
> or neater.
>=20
>=20
> I do not know how much of a speed improvement this would make to what s=
ort of AJAX applications.


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