/**
* stringify to a string
*
* @param Result $result The result will be serialized
* @return string The serialized result
*/
public static function stringify($result)
{
$output = array();
if (!is_null($result->error)) {
$output['error'] = $result->error;
}
if (is_null($result->responses)) {
return json_encode($output);
}
$output['responses'] = array();
foreach ($result->responses as $id => $response) {
$output['responses'][$id] = Response::stringify($response);
}
return json_encode($output);
}
