Despite being a PHP developer for a while, I\'m just now getting my first taste of web services. I was hoping to get a little help, as the book I am using is not much help.
As the provider of the service, the other company should supply you with a WSDL document which describes the service in computer readable terms. Typically they are provided via an url like http://their.service.url/wsdl or similar.
Once you have that you should be able to create a SoapClient
instance to interact with the service.