Forming XML with WSDL Schema

[illustrationism]

I'm currently manually forming my XML and using cURL to send it to a client's server as part of a web application for validating users.

They've recently asked if I could start "using webservice schema and WSDL to derive requests and responses". But I lack a firm grasp of really how to do that, or even what that really means.

I've read a few things on WSDL (seems over-complicated) and I think I get the basic idea. I may have misunderstandings about it, but here goes. My question is now this: How can I use WSDL to form my XML?

Thanks,
David

[illustrationism]

Yikes. Any help? This is kind of important, so if someone could just even point me to a good tutorial, I'd really appreciate it.

Thanks.

[johanafm]

http://www.w3schools.com/wsdl/default.asp

and specs at http://www.w3.org

[NogDog]

The PHP [man]SOAP[/man] extension provides support for WSDL 1.1. You'll probably mainly be interested in the [man]soapclient[/man] class.

[illustrationism]

Thanks for the replies, guys.