Sending soap request with an xml as dime attachment

I've got the following issue: I have to create a soap client and server communication. I am implementing the client part and using php. This communication between the server and the client has 4 steps. One of these step i have to send a soap request to the server with an xml, as a dime attachment.

The problem is: I couldn't figure out how to create a soap request with dime attachment. I've found that Pear has a Net_Dime package, but i didn't 开发者_运维知识库found any example or tutorial how to use it.

Any advice warmly welcome.