PHP SOAP客户端无效的actor

I've never worked with SOAP before. I have got everything to work, but I get a PHP warning in the errors log.

Warning:

[05-Nov-2015 11:06:06 UTC] PHP Warning:  SoapHeader::SoapHeader(): 
Invalid actor in
C:\www\srf.cdab.eu\wp-content\themes\mypage\includes\soap.php on line 61

soap.php:61

$objSoapVarWSSEHeader = new SoapHeader($strWSSENS, 'Security',> $objSoapVarHeaderVal, true, NULL);

I've googled and haven't find anything that explains why I get this error. What could be the reason of this problem?

The Actor musst be a URI-String or SOAP_ACTOR_NONE.

$objSoapVarWSSEHeader = new SoapHeader($strWSSENS, 'Security', $objSoapVarHeaderVal, true, SOAP_ACTOR_NONE);

or

$objSoapVarWSSEHeader = new SoapHeader($strWSSENS, 'Security', $objSoapVarHeaderVal, true, 'https://yourdomain/yourservice');