Country
The BulkGate\Sms\Country
class is a static class that contains constants with ISO 3166-1 alpha-2 codes.
use BulkGate\Sms\Country;
Use:
echo Country::CZECH_REPUBLIC; // 'CZ'
echo Country::UNITED_KINGDOM; // 'GB'
echo Country::UNITED_STATES; // 'US'
echo Country::FRANCE; // 'FR'
echo Country::AUSTRALIA; // 'AU'
// ... etc