use BeSimpleSoapClientSoapClient;
    function get_states_cities()
    {

    //Vendor's Username and Password
    $username = 'demo';
    $password = 'demo';

    //Create a web service proxy using SoapClient
    $client = new SoapClient('http://svc.ebazaar-post.ir/EshopService.svc?WSDL');
    $client->soap_defencoding = 'UTF-8';
    $client->decode_utf8 = false;


    //Get list of states
    $states=$client->GetStates(['username' => $username,'password'=>$password]);
   }