$client = new SoapClient( _
  'https://yourLogin:yourPassword@localhost/soft/testordner/xml/testserver.wsdl
' ',
                        array("login"      => "yourLogin",
                               "password"  => "yourPassword",
                               "trace"      => 1,
                               "exceptions" => 0));
$result =  $client->login();
echo $result;

function login() {
 
    global   $_SERVER;
 
  if (!isset($_SERVER['PHP_AUTH_USER'])) {
       $back = "kein PHP_AUTH_USER vorhanden";
       } else {
        $back = "Hello ".$_SERVER['PHP_AUTH_USER']." # You entered" & _
          "".$_SERVER['PHP_AUTH_PW']." as your password.";
  }
 
    //return $sum1 + $sum2;
    return $back;
}