[Zope] Going beyond Client.call

Zopistas, I'm seeking to improve the "How-To: Serve PHP/Perl from Zope". One component of that How-To uses Stafford's tip of using Client.call(). This function essentially provides a simple way to make web requests. The Client.Function class it is based upon, however, allows more complicated requests. In particular, it allows the method of the call to be specified. This is of interest for the How-To because if one wants to embed PHP or Perl within Zope one needs to be able to make "POST", for example. Has someone played around with Client.Function to do this or have any pointers to code that uses Client.Function in this way? Andres Corrada