NuSoap works but PHP Soap extensions don't?

Hi all, I am trying to access the MSN Search API with SOAP. Passing the same array of parameters to the PHP SOAP Extension and NuSoap produces different results. The PHP SOAP seem to be broken, while NuSoap works. <?php // common code -- the array of search parameters $request = array('Request' => array('AppID' => 'MSN_SEARCH_API_KEY', 'Query' => 'Seinfeld', 'CultureInfo' => 'en-US', 'SafeSearch' => 'Strict', 'Flags' => '', 'Location' => '', 'Requests' => array('SourceRequest' => array('Source' => 'Web', 'Offset' => 0, 'Count' => 50, 'ResultFields' => 'All')))); ?> <?php // 1. PHP 5 Soap extension $soapClient = new SoapClient("http://soap.search.msn.com/webservices.asmx?wsdl"); $return = $soapClient->Search($s); print_r($return); ?> <?php // 2. NuSoap $client = new soapclient("http://soap.search.msn.com/webservices.asmx?wsdl", false); $result = $client->call("Search", $s); print_r($result); ?> Despite passing the same arguments, the 1st returns 10 results while the 2nd returns 50 results as it should. I ran a TCP packet sniffer and noticed the PHP Soap extension isn't sending my request for 50 results. Actually the requests are quite different. Here is what is being sent: PHP SOAP EXTENSION: <?xml version="1.0" encoding="UTF-8"?> <SOAP-ENV:Envelope xmlns:SOAP-ENV="http://schemas.xmlsoap.org/soap/envelope/" xmlns:ns1="http://schemas.microsoft.com/MSNSearch/2005/09/fex"><SOAP-ENV:Body><ns1:Search><ns1:Request><ns1:AppID>MSN_SEARCH_API_KEY</ns1:AppID><ns1:Query>Seinfeld</ns1:Query><ns1:CultureInfo>en-US</ns1:CultureInfo><ns1:SafeSearch>Strict</ns1:SafeSearch><ns1:Flags/

<ns1:Location/><ns1:Requests><ns1:SourceRequest/><ns1:SourceRequest/<ns1:SourceRequest/><ns1:SourceRequest/></ns1:Requests></ns1:Request></ns1:Search></SOAP-ENV:Body></SOAP-ENV:Envelope>

NUSOAP: <?xml version="1.0" encoding="ISO-8859-1"?><SOAP-ENV:Envelope SOAP-ENV:encodingStyle="http://schemas.xmlsoap.org/soap/encoding/" xmlns:SOAP-ENV="http://schemas.xmlsoap.org/soap/envelope/" xmlns:xsd="http://www.w3.org/2001/XMLSchema" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:SOAP-ENC="http://schemas.xmlsoap.org/soap/encoding/"><SOAP-ENV:Body><ns6589:Search xmlns:ns6589="http://tempuri.org"><Request><AppID xsi:type="xsd:string">MSN_SEARCH_API_KEY</AppID><Query xsi:type="xsd:string">Seinfeld</Query><CultureInfo xsi:type="xsd:string">en-US</CultureInfo><SafeSearch xsi:type="xsd:string">Strict</SafeSearch><Flags xsi:type="xsd:string"></Flags><Location xsi:type="xsd:string"></Location><Requests><SourceRequest><Source xsi:type="xsd:string">Web</Source><Offset xsi:type="xsd:int">0</Offset><Count xsi:type="xsd:int">50</Count><ResultFields xsi:type="xsd:string">All</ResultFields></SourceRequest></Requests></Request></ns6589:Search></SOAP-ENV:Body></SOAP-ENV:Envelope> Any idea why these would be so different and why the PHP Soap extension doesn't seem to be working? (I wonder if this is related to Moritz Augustin's question about deeply nested arguments not working.) Thanks, Richard Miller