Newbie Questions

I'm all too new to this SOAP thing. I'm an intermediate PHP developer, and I need some answers. I am tryin to work out exactly how SOAP works, can anyone help me. I'm in the middle of writing a WSDL generator in PHP using DISCO server. I've successfully spit out well formed WSDL and I can read it into a simple PHP SOAP client. But I can't understand the flow of everything. Here's a flow chart of what I got in my head, people correct me please. CLIENT --> request for WSDL (generated in PHP) --> WSDL defines the input/output vars and functions --> a SOAP request sends vars --> PHP processes vars in a function (where do i put these functions??) --> SOAP response sends back result vars I'm using the example below and I can't seem to figure out where the actual PHP functions and intelligence goes. The WSDL defines functions and vars, but where do my functions go, and where can I reference them. http://talks.php.net/show/soap-phpcon-ny2003/70 Any help would be VERY MUCH appreciated. THANKS!! ...Dustin Nantais Aphex Imaging Inc.