URL-ready form of the host and port, where the port isn‘t specified if it is the default for the URL scheme.

Complete path, as requested by the client. Take care about CGI path rewriting.

Complete path, as requested by the client, without the env‘s PATH_INFO. This is the path to whatever is "handling" the request.

Recent discussions on how PATH_INFO must be decoded leads me to think this might not work if the path had any URL encoded characters in it.

URL to the script