libphonenumber\ShortNumberInfo::loadMetadataFromFile PHP Méthode

    protected function loadMetadataFromFile($filePrefix, $regionCode, $countryCallingCode)
    {
        $isNonGeoRegion = PhoneNumberUtil::REGION_CODE_FOR_NON_GEO_ENTITY === $regionCode;
        $fileName = $filePrefix . '_' . ($isNonGeoRegion ? $countryCallingCode : $regionCode) . '.php';
        if (!is_readable($fileName)) {
            throw new \Exception('missing metadata: ' . $fileName);
        } else {
            $data = (include $fileName);
            $metadata = new PhoneMetadata();
            $metadata->fromArray($data);
            if ($isNonGeoRegion) {
                $this->countryCodeToNonGeographicalMetadataMap[$countryCallingCode] = $metadata;
            } else {
                $this->regionToMetadataMap[$regionCode] = $metadata;
            }
        }
    }