Re: Sessions error

That did it! Thanks. On Wednesday, January 8, 2003, at 05:16 AM, Ford, Mike [LSS] wrote:

-----Original Message----- From: Mike Tuller [mailto:php@ce.anoka.k12.mn.us] 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: m.ford@lmu.ac.uk

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