SoapServer can't return a header unless one is sent

Hello, I finally got soap headers to work (yay!), but I can't figure out how to send a header that I didn't receive, since receiving a header seems to be what invokes the magic function. For example, I had a sessionId header. The client makes its first call and doesn't not yet have a session initiated. I want the server to always send a sessionId header, whether it received one or not. Here is a small reproduction. Comment/uncomment the soapenv:Header to see what I am talking about: ***** test.php ***** <?php ini_set("soap.wsdl_cache_enabled", 0); $request = <<<REQUEST <?xml version="1.0" encoding="UTF-8"?><soapenv:Envelope xmlns:soapenv="http://schemas.xmlsoap.org/soap/envelope/" xmlns:xsd="http://www.w3.org/2001/XMLSchema" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"> <!-- <soapenv:Header><ns1:sessionId soapenv:actor="http://schemas.xmlsoap.org/soap/actor/next" soapenv:mustUnderstand="0" xsi:type="soapenc:string" xmlns:ns1="http://xml.apache.org/axis/session" xmlns:soapenc="http://schemas.xmlsoap.org/soap/encoding/">THIS IS CLIENT SESSION!</ns1:sessionId></soapenv:Header> --> <soapenv:Body><ns2:getProduct soapenv:encodingStyle="http://schemas.xmlsoap.org/soap/encoding/" xmlns:ns2="urn:com.plauditdesign.shoppingcart.client#"><productId href="#id0"/></ns2:getProduct><multiRef id="id0" soapenc:root="0" soapenv:encodingStyle="http://schemas.xmlsoap.org/soap/encoding/" xsi:type="xsd:int" xmlns:soapenc="http://schemas.xmlsoap.org/soap/encoding/">236</multiRef></soapenv:Body></soapenv:Envelope> REQUEST; class CatalogFacade { public function sessionId( $id ) { echo "<!-- sessionId! $id -->"; return "FROM SERVER: $id"; } public function getProduct( $id ) { return "PRODUCT $id"; } } $server = new SoapServer( "CatalogFacade.wsdl" ); $server->setClass( "CatalogFacade"); $server->handle( $request ); ?> ***** CatalogFacade.wsdl ***** <?xml version="1.0" encoding="utf-8"?> <definitions name="shoppingcart" xmlns="http://schemas.xmlsoap.org/wsdl/" xmlns:tns="urn:com.plauditdesign.shoppingcart.client#" targetNamespace="urn:com.plauditdesign.shoppingcart.client#" xmlns:wsdl="http://schemas.xmlsoap.org/wsdl/" xmlns:soap="http://schemas.xmlsoap.org/wsdl/soap/" xmlns:soapenc="http://schemas.xmlsoap.org/soap/encoding/" xmlns:xs="http://www.w3.org/2001/XMLSchema" xmlns:axis-session="http://xml.apache.org/axis/session" xmlns:types="urn:com.plauditdesign.shoppingcart.client.types#"> <!-- all datatypes will be imported to namespace types: --> <types>

        <schema xmlns="http://www.w3.org/2001/XMLSchema"
                targetNamespace="http://xml.apache.org/axis/session">
                <element name="sessionId" type="xs:string"/>
        </schema>

</types> <!-- Obviously, the value for @location is wrong! <import namespace="urn:com.plauditdesign.shoppingcart.client#" location='http://www.example.org/schema/sample.xsd'/> -->

        <message name="sessionIdRequest">
                <part name="sessionId" element="axis-session:sessionId"/>
        </message>
        <message name="sessionIdResponse">
                <part name="sessionId" element="axis-session:sessionId"/>
        </message>

<message name="getProduct-request"> <part name="productId" type="xs:int"/> </message> <message name="getProduct-response"> <part name="result" type="xs:string"/> </message> <portType name="catalog-porttype"> <operation name="getProduct" parameterOrder="productId"> <input name="getProduct-request" message="tns:getProduct-request"/> <output name="getProduct-response" message="tns:getProduct-response"/> </operation> </portType> <!-- @type doesn't like tns: --> <binding name="catalog-binding" type="tns:catalog-porttype"> <!-- <soap:binding style="document" transport="http://schemas.xmlsoap.org/soap/http"/> --> <soap:binding style="rpc" transport="http://schemas.xmlsoap.org/soap/http"/> <operation name="getProduct"> <soap:operation soapAction="urn:com.plauditdesign.shoppingcart.client.CatalogFacade#getProduct"/> <input> <soap:body use="encoded" namespace="urn:com.plauditdesign.shoppingcart.client#" encodingStyle="http://schemas.xmlsoap.org/soap/encoding/"/> <soap:header message="tns:sessionIdRequest" part="sessionId" use="encoded" encodingStyle="http://www.w3.org/2003/05/soap-encoding"/> </input> <output> <soap:body use="encoded" namespace="urn:com.plauditdesign.shoppingcart.client#" encodingStyle="http://schemas.xmlsoap.org/soap/encoding/"/> <soap:header message="tns:sessionIdResponse" part="sessionId" use="encoded" encodingStyle="http://www.w3.org/2003/05/soap-encoding"/> </output> </operation> </binding> <service name="catalog"> <!-- @binding doesn't like to be tns: --> <port name="catalog-port" binding="tns:catalog-binding"> <soap:address location="http://admin.plauditdesign.com/zencart/webservice/soap-index.php?server=Catalog"/> </port> </service> </definitions> Thanks! Harlan