Phpsoap

try{
    $soap_options = array('soap_version'=>SOAP_1_1,'cache_wsdl'=>WSDL_CACHE_NONE,'trace' => TRUE);
    $soap = new SoapClient('http://url.to/web/service.svc?wsdl',$soap_options);
    $a = $soap->Test(array("login" => array("FirmaId" => 15,"KullaniciAdi" => "Asdf", "Parola" => "Xyxy")));
    var_dump($a);
}catch(Exception $e){
    var_dump($e);
}