thank you for your explanation,
when i write to $_SESSION after session_commit(),$_SESSION is just a
regular array
2012/4/24 Stuart Dallas <stuart@xxxxxxxx>
> Please don't top-post, and please include the list when replying.
>
> On 24 Apr 2012, at 06:35, bug zhu wrote:
> > 2012/4/24 Stuart Dallas <stuart@xxxxxxxx>
> >> On 24 Apr 2012, at 05:58, bug zhu wrote:
> >>
> >> > there are tow php files a.php and b.php,
> >> >
> >> > content of a.php as follows:
> >> > <?php
> >> > session_start();
> >> > if (!isset($_GET['flag']))
> >> > {
> >> > header('Location: b.php');
> >> > }
> >> > else
> >> > {
> >> > var_dump($_SESSION);
> >> > }
> >> >
> >> > content of b.php as follows:
> >> > <?php
> >> > session_start();
> >> > session_commit();
> >> > $_SESSION['test'] = 'test';
> >> > session_commit();
> >> > header('Location: a.php?flag=1');
> >> >
> >> > when i visit a.php, the dumped $_SESSION array is empty
> >> > but if i commented the first session_commit() in b.php and then visit
> >> > a.php, i cound see the $_SESSION array,which is not empty
> >> > i wish i have descibed clear about my problem and someone could give
> me a
> >> > feedback~
> >>
> >>
> >> I'm really not clear on what you're trying to do here, but the
> behaviour you're describing is as designed. When you call session_commit()
> you are saving and closing the session, so nothing done to $_SESSION after
> that point will be saved, even if you call session_commit() again.
> >
> > but in a single file without redirect, code as follows
> > <?php
> > session_start();
> > session_commit();
> > $_SESSION['test'] = 'test';
> > session_commit();
> > var_dump($_SESSION);
> >
> > could dump the $_SESSION array.
>
> Yes, because $_SESSION is not special in any way other than that it's used
> by the session system; it's no more than a superglobal array. So within one
> request that array contains whatever you put into it, but that doesn't mean
> it is stored in whatever session storage mechanism you're using (files by
> default). When you redirect to another URL that's a whole new request so
> the contents of $_SESSION have to be loaded from the session storage.
>
> -Stuart
>
> --
> Stuart Dallas
> 3ft9 Ltd
> http://3ft9.com/
>
--
thanks,
bugzhu
