Atom API problem: PHP can't deal with Atom-Authenticate headers

[Simon Willison <cs1spw@xxxxxxxxxx>]

Hi all,

I just read Mark's blog entry about the Atom API draft. I understand the 
reasoning behind the custom authentication system, but I can see a major 
problem with it: To my knowledge, PHP does not provide a way of 
accessing custom HTTP headers sent by the user agent (standard headers 
such as ACCEPT_ENCODING, are available via the $_SERVER array). This 
means that PHP implementations of the Atom API will be unable to support 
the recommended authentication method. Since PHP is the most popular 
open source web scripting technology by a very wide margin, this issue 
needs serious consideration.

Thanks,

Simon Willison