Scalr\Service\Aws\Client\SoapClient::setApiVersion PHP Метод

    public function setApiVersion($apiVersion)
    {
        if (preg_match('/^(\\d{4})(\\d{2})(\\d{2})$/', $apiVersion, $m)) {
            $apiVersion = $m[1] . '-' . $m[2] . '-' . $m[3];
        } else {
            if (!preg_match('/^[\\d]{4}\\-[\\d]{2}\\-[\\d]{2}$/', $apiVersion)) {
                throw new QueryClientException('Invalid API version ' . $apiVersion . '. ' . 'You should have used following format YYYY-MM-DD.');
            }
        }
        $this->apiVersion = $apiVersion;
    }