Problem in calling RemObjects SOAP services from PHP

hello again, I have downloaded a working example of SOAP and SSL from here ( HTTPS Server) and I can see that is working fine, but again I need to test it with a php client, but I always get this error.
This is my php:

  <?php
    try {
       $soapclient_options = array(); 
       $soapclient_options['local_cert'] = "sample.crt"; 
        $client = new SoapClient("https://192.168.10.6:8099/soap", $soapclient_options);	
    	$params = new stdClass;
    	  $params->A = 1;
    	  $params->B = 3;
    	$response = $client->GetServerTime($params);
        print_r($response);
    }
    catch (SoapFault $exception) {
        echo $exception->getMessage();
    }
    ?>

and I get this error: > SOAP-ERROR: Parsing WSDL: Couldn’t load from ‘https://192.168.10.6:8099/soap’ : failed to load external entity "https://192.168.10.6:8099/soap"
I have enabled openssl in php.ini, do you have any idea of how to ge rid of this error (or a working example with a SOAP Remobjects service and a php client), because I tried all sorts of non-working solutions for the past two days.
Best regards,
Cristian