RE: [PHP-DB] losing my session variables

> -----Original Message----- > From: Peter Beckman [mailto:beckman@purplecow.com] > Sent: 30 October 2002 04:09 > To: Seabird > Cc: php-db@lists.php.net > 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: m.ford@lmu.ac.uk Tel: +44 113 283 2600 extn 4730 Fax: +44 113 283 3211