Hi PHP-Devs,
i don't know if it is a bug or a new feature of php5. The php manual
says, that using superglobals for variable variables isn't working, so
something like this shouldn't work:
$a = 'hello world';
echo ${$_GET['test']};
?>
Actually it does work. Is this intended now? Would be nice,
The idea is that the following doesn't work by design:
$a = "_GET";
var_dump($$a);
At 11:31 PM 1/28/2005 +0100, Michael Virnstein wrote:
Hi PHP-Devs,
i don't know if it is a bug or a new feature of php5. The php manual says,
that using superglobals for variable variables isn't working, so somethin
but this does also work, atm. i'm using PHP 5.0.2 on Windows XP with
apache 1.3 and if i call my php page with
http://localhost/test.php?test=works it works.
//test.php
$a = '_GET';
echo ${$a}['test'];
var_dump($$a);
?>
the output is:
works
array(1) {
["test"]=>
string(5) "works"
}
Andi Gut
ok, sorry, now i have it. i read the german manual version first and
that says that you can't use what i said. The german is wrong and the
english version of the manual has it right. It says:
"Please note that variable variables cannot be used with PHP's
Superglobal arrays within functions or c
> but this does also work, atm. i'm using PHP 5.0.2 on Windows XP with
> apache 1.3 and if i call my php page with
> http://localhost/test.php?test=works it works.
>
> //test.php
> $a = '_GET';
> echo ${$a}['test'];
> var_dump($$a);
> ?>
>
It works when you're already at the global scope, but try
> I've been writing a module, it is dependent on some GD functions, how
> can I detect that GD has been installed PHP native?
>
Taking a page out of Zend/zend_builtin_functions and the source code for the
extension_loaded() userspace function:
int gd_is_loaded = zend_hash_exists(&module_regist
yep, figured it out already. Problem is the german version of the
manual. It is wrong and doesn't say anything about functions and
methods. It simply says you can't use superglobals for variable variable
and uses a illogical example ${$_GET}, whatever that should mean ;). The
english manual is
