How to? URL

Hi,
I would like to know how I could get the URL of the document I'm in, in a variable?

Explanation:
to get to a document, the url is http://www.[...]/menu.php?user=casimir

I want to be able to do:

$page = FUNCTION_TO_GET_URL();
// $page = http://www.[...]/menu.php?user=casimir
echo '<a href='.$page.'&var=1>Change something</a>';

And I'm looking for the FUNCTION_TO_GET_URL() if it exists.

PHP gives you access a variable call

$PHP_SELF which is a global variable of the url currently being used.

Hope this helps

All you need is a good mix of $_SERVER variables (http://www.php.net/manual/en/reserved.variables.php#reserved.variables.server): server_name, php_self and query_string, smth like this.

Thanks a lot.
I'll try to use that.

And an answer so quickly. Wow :-D

Phil.