PKIT_HOSTNAME — Fills in the hostname in the URL.
Returns the hostname in the URL of the page being served. Particulary useful when you have production and development servers and you need to link to a secure page.
Note that if you are running a proxy server in front of the PageKit server, you probably want to use mod_proxy_add_uri.c. PageKit will extract the hostname from the frontend server using the X-Original-URI header that mod_proxy_add_uri sets.