Should nuSoap server produce a fault if a required element is not provided in the SOAP message?

In a WSDL file there is the following type definition (part of a bigger type):

      <xsd:complexType name="bookingSearchParamsProviderIdType">
        <xsd:all>
          <xsd:element name="values" type="typens:providerIdArray"/>
          <xsd:element name="mode" type="typens:bookingSearchModeType"/>
        </xsd:all>
      </xsd:complexType>

A client is producing a SOAP message that only contains the 'values' element
and does not contain the 'mode' element, i.e. the message does not conform
to the WSDL specification.

Should nuSOAP produce a fault because of the missing element 'mode' or is it
up to me to code the validation in the PHP code for the webservice?

--
Mark Scott
CSUK Solutions Technical Team
Tel: +44 (0)845 6444 185
Email: mark.scott@xxxxxxxxxxxxxxxxxx


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