> -----Original Message-----
> From: Mike Tuller [mailto:[EMAIL PROTECTED]]
> Sent: 08 January 2003 01:23
>
> I am working with sessions, and following an example in a book and am
> getting an error that I am not sure of. I have an html doc
> that has the
> fields for username and password and the information entered goes to
> this script.
>
> <?
> session_start();
[...]
> if ($num > 0 )
> {
> $valid_user = $_POST[username];
> session_register("valid_user");
> }
>
> // PHP script to create the html for the login page
> if (session_is_registered("valid_user"))
[...]
>
> Warning : Unknown(): Your script possibly relies on a session
> side-effect which existed until PHP 4.2.3. Please be advised that the
> session extension does not consider global variables as a source of
> data, unless register_globals is enabled. You can disable this
> functionality and this warning by setting session.bug_compat_42 or
> session.bug_compat_warn to off, respectively. in Unknown on line 0
>
> What does this mean, and what am I doing wrong?
Well, you're not necessarily doing anything wrong -- as the warning says, your script
*possibly* relies on...
What's happened is that in version 4.3.0, a bug in session variable handling was fixed
-- but the fix changes the way session variables behave in certain situations, and PHP
has detected that you *may* have coded in a way that is sensitive to those changes.
If you understand the issues (and I'm not 100% sure I do!) and are *sure* you're not
relying on them, then you can set the session.bug_compat_* values in php.ini as
specified.
The best way of avoiding this error, however, is to drop the use of session_register()
and friends, and switch to using the $_SESSION[] array -- so the fragment of code I've
left in above would become:
if ($num > 0 )
{
$_SESSION['valid_user'] = $_POST['username'];
}
// PHP script to create the html for the login page
if (isset($_SESSION["valid_user"]))
Cheers!
Mike
---------------------------------------------------------------------
Mike Ford, Electronic Information Services Adviser,
Learning Support Services, Learning & Information Services,
JG125, James Graham Building, Leeds Metropolitan University,
Beckett Park, LEEDS, LS6 3QS, United Kingdom
Email: [EMAIL PROTECTED]
Tel: +44 113 283 2600 extn 4730 Fax: +44 113 283 3211
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