SOAP request using raw XML query


I’ve been trying to get to grips with a SOAP based webservice using
soap4r and have come up against a wall; wsdl2ruby unfortunately
doesn’t support xsd:ID which, of course, is being used in the
webservice I’m trying to consume and thus I can’t use soap4r. So my
question is: can I simply send a raw XML query to the service? I only
want to do really simple stuff with it.

Here’s an example of what I mean (in PHP):
admin – Ernährung umstellen –

(That’s the webservice I’m trying to work with, btw)

Many thanks in advance for any help on this. I guess I’ll have to go
back to PHP on this task if I can’t make any headway.