Nestled type

I try to access a web service (SOAP, WSDL available) using ext/soap. The argument of the SOAP function is quite nestled. Today I've searched the web, but haven't found an example which uses an argument with is more nestled than 1 dimension. The PHP documentation is not complete at this point, so it's undocumentated. My question: What's the general syntax for nestled parameters (or: how must the following $parameters be built?). $return = $soapclient->myFunction ($parameters); An exception from WSDL file to make it more clear: <s:complexType name="GetModifiedOrdersInput"> <s:sequence> <s:element name="QueryRequestHeader" type="que:queryRequestHeader" minOccurs="0"/> <s:element name="FromDate" type="s:dateTime" minOccurs="0"/> <s:element name="ToDate" type="s:dateTime" minOccurs="0"/> <s:element name="OrderQueryOptions" type="que:orderQueryOptions" minOccurs="0"/> </s:sequence> </s:complexType> .... <s:complexType name="queryRequestHeader"> <s:sequence> <s:element name="PartnerCode" type="s:string" minOccurs="0"/> <s:element name="AuthToken" type="que:authToken" minOccurs="0"/> <s:element name="ReplayToken" type="s:string" minOccurs="0"/> <s:element name="UseReplayToken" type="s:boolean" minOccurs="0"/> </s:sequence> </s:complexType> .... <s:complexType name="orderQueryOptions"> <s:sequence> <s:element name="ReturnProductDetail" type="s:boolean" minOccurs="0"/> <s:element name="ReturnContacts" type="s:boolean" minOccurs="0"/> <s:element name="ReturnCertificateInfo" type="s:boolean" minOccurs="0"/> <s:element name="ReturnFulfillment" type="s:boolean" minOccurs="0"/> <s:element name="ReturnCACerts" type="s:boolean" minOccurs="0"/> <s:element name="ReturnOrderAttributes" type="s:boolean" minOccurs="0"/> </s:sequence> </s:complexType> Best Regards, Moritz Augustin Core Networks GmbH