> -----Original Message-----
> From: Peter Beckman [mailto:beckman@;purplecow.com]
> Sent: 30 October 2002 04:09
> To: Seabird
> Cc: [EMAIL PROTECTED]
> Subject: Re: [PHP-DB] losing my session variables
>
>
> Put "session_start()" somewhere in your code.
.. but make sure that "somewhere" is before you do any real output to your page!
> $_SESSION isn't set until you "start" your session.
>
> And don't set session variables by $_SESSION[foo] = bar;
>
> DO this:
>
> $foo = bar;
> session_register("foo");
>
> Much better.
No -- this is fraught with problems in current releases of PHP (most, if not all, of
which will be fixed in 4.3). Most particularly, the following caution appears at
http://www.php.net/manual/en/ref.session.php:
"If you are using $_SESSION and disable register_globals, do not use
session_register(), session_is_registered() and session_unregister(), if your scripts
shall work in PHP 4.2 and earlier."
Since the default for 4.2.x is register_globals=off, this is a very pertinent warning!
Even with register_globals=on, there are other problems which make it best to stick to
manipulating the values in $_SESSION directly, rather than using the "equivalent"
global variables.
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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