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Below is anatomy of WSDL document:

<definitions xmlns="http://schemas.xmlsoap.org/wsdl/">
  <types>
    <!-- definition of types used in WSDL-->
  </types>
  
  <message>
    <!--abstract definition of the data being transmitted-->
  </message>
  
  <portType>
    <!-- a set of abstract operations referring to input and output messages  -->
  </portType>
  
  <binding>
    <!-- concrete protocol and data format specs -->
  </binding>
  
  <service>
    <!-- specifies locations and bindings for a service -->
  </service>
</definitions>

The funny thing, you may look simple structure above. May you imagine it will simple and short document. No! It will longer document than you dream! So, I will talk step by step each part of the document.

As result of this practice, we will collaborate with SOAP to generate services. This tutorial must be run at PHP 5.

Next post, we will talk type in more detail. Don't miss it!