Set the WSDL file location and the SOAP client options

$soap_wsdl = "https://" . $soap_host . ":8880/Api/services/ApiService?wsdl";
    // trace = 1 lets us use getLastRequest and getLastResponse
    // exceptions = 0 uses SoapFault Objects instead of exceptions
    $soap_arry = array("login" => $soap_user, 
                                 "password" => $soap_pw,
                                 "trace" => 1, 
                                 "exceptions" => 0);