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Doc Bug #18452 Superglobals appear to not work...
Submitted: 2002-07-20 22:39 UTC Modified: 2002-11-10 16:07 UTC
Votes:1
Avg. Score:5.0 ± 0.0
Reproduced:1 of 1 (100.0%)
Same Version:1 (100.0%)
Same OS:1 (100.0%)
From: dilbert at hack3r dot com Assigned:
Status: Closed Package: Documentation problem
PHP Version: 4.2.1 OS: OpenBSD
Private report: No CVE-ID: None
View Developer Edit
 [2002-07-20 22:39 UTC] dilbert at hack3r dot com 
An example of this failure can be seen here:
http://roothack.org/Articles/test.php?var=value

The Source to that page is here:
<?
// PHP 4.2.1
// get like: file.php?name=hi
// Isn't $_GET supposed to be "superglobal" ?

	print_r($_GET); // Works!
	echo "<br><hr>";
	function pr1() { print_r($_GET); } // DOESN'T WORK!
	echo "<br><hr>";
	$h = "_GET";
	print_r($$h); // Works!
	echo "<br><hr>";
	function pr2() { $g = "_GET"; print_r($$g); }  // DOESN'T WORK!
	echo "<br><hr>";
	function pr3() { global $_GET; print_r($_GET); } // DOESN'T WORK!??

?>

Information about the server can be found here:
http://roothack.org/~articles/test2.php

(its phpinfo();)

Please tell me I'm not crazy... ;)

Ted Kaminski

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 [2002-07-20 22:41 UTC] dilbert at hack3r dot com 
An example of this failure can be seen here:
http://roothack.org/articles/test.php?var=value

(case...)
 [2002-07-20 22:42 UTC] dilbert at hack3r dot com 
An example of this failure can be seen here:
http://roothack.org/~articles/test.php?var=value

(wonder how many tries this is going to take...)
 [2002-07-21 14:21 UTC] tal@php.net 
Of course it doesn't work, you don't call the functions...

-Tal
 [2002-07-22 19:54 UTC] dilbert at hack3r dot com 
you just told me I was crazy ;)

but okay, I fixed that problem (heh)

this STILL isn't a bogus bug, however... Look at the example page i supplied above,

....
	echo "<br><hr>";
	$h = "_GET";
	print_r($$h); // Works!
	echo "<br><hr>";
	function pr2() { $g = "_GET"; print_r($$g); }  // DOESN'T WORK!
	pr2();
....

That part is still true. Comments and all.

Now, thats the bug I was dealing with previously (before i screwed up and figured all superglobals didn't work :/)

I knew I messed something up, at least I've finally got this refined...

Am I missing something again, or have I finally nailed it?

Ted
 [2002-11-10 12:01 UTC] php at pwoods dot fsnet dot co dot uk 
try using $HTTP_GET_VARS rather than $_GET... I am new to this so I might be wrong but the $_GET and $_POST etc seem deprecated in this version.
 [2002-11-10 16:07 UTC] philip@php.net 
autoglobals (superglobals) don't work as variable variables. This is known and comes up every so often.  It's documented here:

http://www.php.net/manual/en/language.variables.variable.php

I've added a note at php.net/variables.predefined and it'll show up within the next few days.  Am marking this as a closed documentation bug.

Regarding the last note, autoglobals have never been nor will they ever be deprecated.  The older $HTTP_*_VARS are deprecated yet I'm pretty sure they'll be around forever.
 
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