Description:
------------
Steps to reproduce problem:
* Go to http://php.net/manual/add-note.php?
sect=reserved.variables.server&redirect=http://php.net/manual/en/reserved.variable
s.server.php
* Fill in the form
* Submit the form (use Preview if you want to avoid sending the submission for 
real)

Expected result:
* add-note.php adds type=hidden fields for GET[sect] and GET[redirect]
* Together with my input, they are sent over POST to the server
* Response: "Your submission was successful -- thanks for contributing!"

Actual result:
* add-note.php adds type=hidden fields for GET[sect] and GET[redirect]
* Together with my input, they are sent over POST to the server
* Response: The same page again, but without the form. Message "To add a note, you 
must click on the "Add Note" button" in place of the form.


This is caused by the fact that php.net pages have a <base> tag, set to 
www.php.net and www.php.net is a 301 redirect to php.net.

So the POST request is forwarded as GET, without the POST payload. And worst of 
all, it is a loop (pressing Submit press will loop back, and then the same).

Assuming that www is always a redirect and that <base> is also outputted on other 
pages, this bug will be happening on any POST request, not just add-note.php.

Please fix the <base> tag for php.net to point to php.net, not www.php.net.

PS: What is the purpose of this <base> tag anyway?