In case you need to connect to a soap service without WSDL

soapClientNonWsdl.php

<?php

$client = new SoapClient(
    null,
    [
        'location' => 'http://webservices.oorsprong.org/websamples.countryinfo/CountryInfoService.wso',
        'uri' => 'http://www.oorsprong.org/websamples.countryinfo',
    ]
);

$params = [new SoapParam('Netherlands', 'sCountryName')];

var_dump($client->__soapCall('CountryISOCode', $params));