Undefined variable PSPSESSID ?!

[Leozack]

Help, I've just installed apache and php on my new XP sp1 setup. After getting everything working between the 2, I found a problem. My code has ain includes page taht does all the session work, and makes the variables if they're not already there. It starts with this :

if (!$PHPSESSID) {

Now - that always used to work, ie, if there isn't a session, make one. I've already got past problems of having sessions pointing to the wrong dir and stuff like that, and now teh files are being made correctly in /tmp but still thigns aren't working! It says undefined variable. Eh? The point in checking if it exists is to make it, not bomb out cos it doesn't exist

_________________________________
Leozack

MakeUniverse($infinity,1,42);

 

[sleipnir214]

The existence of $PHPSESSID is dependent on a lot more than whether the session has been started, not the least of which is the setting of register_globals in php.ini.

"register_globals" would have to be set to "on" for that variable to exist. Keep in mind, though, that the PHP online manual recommends leaving it set to "off" (

http://us4.php.net/register_globals)

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[Leozack]

I noticed that was off in the latest PHP build ini by default, along with other things that I previously had on by default. Naturally I want to code with the secure settings and adjust to these new settings. So. What is the plan B that circumvents this problem?

_________________________________
Leozack

MakeUniverse($infinity,1,42);

 

[sleipnir214]

When I'm checking to see whether a session variable has not been set, I do something like:

<?php
session_start();

if (!array_key_exists('foo', $_SESSION))
{
$_SESSION['foo'] = 'bar';
}
.
.
.
?>

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[Leozack]

Thanks, I was reading up about flock (which I also need to try to work into my site I guess) and the 5 super globals. I guess I will now have to start getting all my vars using the superglobals from where they're expected, something I've not done upto now. I shall probably also consider, as with programming in vb or blitz or div or anything else really, having a section at the top where I set all the variables initially, or a function that sets them so you can reset them at any time. Hmmm.

_________________________________
Leozack

MakeUniverse($infinity,1,42);

 

[sleipnir214]

I have gotten myself into the habit of using the superglobals where possible.

Aside from the security reasons mentioned in hte &quot;Using register globals&quot; page, I've found that referencing the supergloblals adds a modicum of automatic documentation to my code. I may not remember where $foo got its value, but $_POST['foo'] is obvious.

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