To include Schema for complex data types, you must define the data type map in your classes. The key is the data type name and namespace The value is a *structure* that will be mapped into schema. This can be an arbitrarily complex set of array's to define the data object. __typedef['{http://soapinterop.org/xsd}SOAPStruct'] = array( 'varString' => 'string', 'varInt' => 'int', 'varFloat' => 'float' ); $this->__typedef['{http://soapinterop.org/xsd}SOAPStructArray'] = array( array( 'item'=>'{http://soapinterop.org/xsd}SOAPStruct' ) ); ?>]]> ]]>