| protected getCountryCodeForValidRegion ( string $regionCode ) : integer | ||
| $regionCode | string | the region that we want to get the country calling code for |
| return | integer | the country calling code for the region denoted by regionCode |
protected function getCountryCodeForValidRegion($regionCode)
{
$metadata = $this->getMetadataForRegion($regionCode);
if ($metadata === null) {
throw new \InvalidArgumentException("Invalid region code: " . $regionCode);
}
return $metadata->getCountryCode();
}