client.php

<?php
ini_set("soap.wsdl_cache_enabled","0");
defined('DS') ? null : define('DS', DIRECTORY_SEPARATOR);
try {
  $client = new SoapClient(getcwd().DS."helloworld.wsdl", [
                                        'trace'=>true,
                                        'exception'=>true,
                                        'location'=>'http://192.168.0.228/wsdl/helloworld.wsdl',
                                        'uri'=>'http://schemas.xmlsoap.org/wsdl/'
                                    ]);
  $result = $client->answerMe("1");
  print($result);
} catch (SoapFault $exception) {
  echo $exception;
}