Php SoapClient via wsdl - why are parameters not being passed?

Question

PHP

https://www.onvif.org/ver10/search.wsdl

$this->client = new SoapClient($this->wsdl, array(
      'trace' => true, 
      'exceptions' => true, 
#			'cache_wsdl' => WSDL_CACHE_NONE,
      'ssl' => array(
        'verify_peer' => false,
        'allow_self_signed' => true
      ),
      'soap_version' => SOAP_1_2,
    ));
    $this->client->__setLocation($service);
    $params = array(
      'Scope' => array(
        'IncludedSources' => array('Token' => ''),
        'Extension'  => array(
          'CameraUuid' => $CameraUuid,
          'StartTime' => $StartTime,
          'StopTime' => $StopTime,
        ),
      ),
      'KeepAliveTime' => $KeepAlive
    );
    return $this->client->FindRecordings($params);

however in wireshark i see body like this

<env:Body>
      <ns2:FindRecordings>
         <ns2:Scope>
            <ns1:IncludedSources>
               <ns1:Token />
            </ns1:IncludedSources>
            <ns1:Extension />
         </ns2:Scope>
         <ns2:KeepAliveTime>PT10S</ns2:KeepAliveTime>
      </ns2:FindRecordings>
   </env:Body>

in a similar case with this wsdl
https://www.onvif.org/ver10/media/wsdl/media.wsdl
, such a line passes parameters to the method without any problems

return $this->client->GetStreamUri(array(
      'StreamSetup' => array(
        'Stream' => $stream_type,
        'Transport'  => array(
          'Protocol' => $protocol,
        ),
      ),
      'ProfileToken' => $profile
    ));

<env:Body>
      <ns2:GetStreamUri>
         <ns2:StreamSetup>
            <ns1:Stream>RTP-Unicast</ns1:Stream>
            <ns1:Transport>
               <ns1:Protocol>TCP</ns1:Protocol>
            </ns1:Transport>
         </ns2:StreamSetup>
         <ns2:ProfileToken>1892abb3d4c0e916b79a2fe02f338069</ns2:ProfileToken>
      </ns2:GetStreamUri>
   </env:Body>

I just can’t understand why in the first case the parameters are not transferred normally, but in the second they are transferred?

Answer 1

Try this part

array(
          'CameraUuid' => $CameraUuid,
          'StartTime' => $StartTime,
          'StopTime' => $StopTime,
        ),

wrap in SoapVar
In general, read about SoapVar. This class will help you explicitly specify the data type
php.net/manual/ru/class.soapvar.php