How can I access request headers that don't appear in $_SERVER?

Question

I am attempting to create a REST API in PHP and I\'d like to implement an authentication scheme similar to Amazon\'s S3 approach. This involves setting a custom \'Authorizat

Answer 1

There is a fantastic PECL extension that allows for all sorts of HTTP related access. PECL_HTTP and more specifically http://php.net/http and http://php.net/manual/en/function.http-get-request-headers.php.