Re: PHP 5 Strings are References?!

Richard Lynch wrote:

On Tue, March 29, 2005 7:58 pm, Chris said:

Richard Lynch wrote:

Aha! Okay, here's the previous session question boiled down to its simplest: <?php session_start(); if (!isset($_SESSION['name'])){ $_SESSION['name'] = 'Richard Lynch'; } else{ $name = $_SESSION['name']; } /* Assume a ton of code goes here */ $name = 'Fooey'; echo "Session name is: ", $_SESSION['name'], "<br />\n"; ?> Now, hit this page, re-load it, and what do *YOU* expect $_SESSION['name'] to output? A) 'Richard Lynch', because you never re-assigned $_SESSION['name'] B) 'Fooey' because $name is a reference, and you changed it, so that changed your session data. *I* expected A) Alas, the reality is B) Grrrrrrrr. I do *NOT* want all my strings to suddenly turn into pointers. If I wanted that kind of headache, I'd be coding in C! :-) I should have known this from the get-go, when I saw & in my session data with var_dump($_SESSION); *WHY* are strings suddenly turning into references? They're *NOT* objects! I'm about to go re-read the PHP 5 sections of the manual with a fine-tooth comb to see if I just missed this as an upgrade issue. It's pretty much going to break a hell of a lot of scripts, that's for sure. Somebody please tell me this is a Bug, not a "Feature" PHP 5.0.3 FreeBSD 5.3-RELEASE

Are you sure you don't have register_globals enabled?

Actually, they *ARE* enabled by my webhost. I don't really think that's relevant, however, as PHP is storing $name back *IN* to my $_SESSION data, just because I did: $name = $_SESSION['name']; $name = "Fooey"; $name is a STRING. It's not an object. It should *NOT* be a Reference! But it is a Reference, so changing $name alters $_SESSION['name'] Sorry, meant to reply to list, not just you.

All I'm saying is that Sessions act extremely oddly with register_globals enabled. With register_globals on I believe the global variable, acts as a reference. It's not because it's a string, it's because it's a session variable, and it needs to keep track of changes to the variable.