Read this:
Variables from outside PHP:
http://www.php.net/manual/en/language.variables.external.php
Some notes:
a) Know your register_globals directive.
b) register_globals defaults to off as of PHP 4.2.0.
c) It's preferred not to rely on register_globals being on.
d) Autoglobals, such as $_GET, became available in PHP 4.1.0.
e) register_globals can be changed in php.ini or .htaccess
but not ini_set().
f) Many older scripts assume register_globals = on.
g) This change is huge in the PHP world.
h) register_globals affects web server vars too, so for
example, $DOCUMENT_ROOT won't exist if it's off,
$_SERVER['DOCUMENT_ROOT']. Same for PHP_SELF, etc.
i) $_REQUEST can be useful, import_request_variables() too.
See also:
http://www.php.net/globals
http://www.php.net/variables.predefined
Regards,
Philip Olson
On Wed, 30 Oct 2002, Manuel Jenne wrote:
> Hi,
>
> I've just installed php 4.2.3 and wonder why I can't submit an variable
> over url.
>
> Example:
>
> My Script:
> Test.php
>
> <?
> echo $tmp;
> ?>
>
> My URL:
> www.some.domain/test.php?tmp=5
>
> My result:
>
> NOTHING !!!
>
> Where is the error?
>
> P.S. phpmyadmin run ok.
>
>
> Thanx
>
> Manuel
>
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