libphonenumber\PhoneNumberUtil::getNumberTypeHelper PHP Méthode

    protected function getNumberTypeHelper($nationalNumber, PhoneMetadata $metadata)
    {
        if (!$this->isNumberMatchingDesc($nationalNumber, $metadata->getGeneralDesc())) {
            return PhoneNumberType::UNKNOWN;
        }
        if ($this->isNumberMatchingDesc($nationalNumber, $metadata->getPremiumRate())) {
            return PhoneNumberType::PREMIUM_RATE;
        }
        if ($this->isNumberMatchingDesc($nationalNumber, $metadata->getTollFree())) {
            return PhoneNumberType::TOLL_FREE;
        }
        if ($this->isNumberMatchingDesc($nationalNumber, $metadata->getSharedCost())) {
            return PhoneNumberType::SHARED_COST;
        }
        if ($this->isNumberMatchingDesc($nationalNumber, $metadata->getVoip())) {
            return PhoneNumberType::VOIP;
        }
        if ($this->isNumberMatchingDesc($nationalNumber, $metadata->getPersonalNumber())) {
            return PhoneNumberType::PERSONAL_NUMBER;
        }
        if ($this->isNumberMatchingDesc($nationalNumber, $metadata->getPager())) {
            return PhoneNumberType::PAGER;
        }
        if ($this->isNumberMatchingDesc($nationalNumber, $metadata->getUan())) {
            return PhoneNumberType::UAN;
        }
        if ($this->isNumberMatchingDesc($nationalNumber, $metadata->getVoicemail())) {
            return PhoneNumberType::VOICEMAIL;
        }
        $isFixedLine = $this->isNumberMatchingDesc($nationalNumber, $metadata->getFixedLine());
        if ($isFixedLine) {
            if ($metadata->isSameMobileAndFixedLinePattern()) {
                return PhoneNumberType::FIXED_LINE_OR_MOBILE;
            } elseif ($this->isNumberMatchingDesc($nationalNumber, $metadata->getMobile())) {
                return PhoneNumberType::FIXED_LINE_OR_MOBILE;
            }
            return PhoneNumberType::FIXED_LINE;
        }
        // Otherwise, test to see if the number is mobile. Only do this if certain that the patterns for
        // mobile and fixed line aren't the same.
        if (!$metadata->isSameMobileAndFixedLinePattern() && $this->isNumberMatchingDesc($nationalNumber, $metadata->getMobile())) {
            return PhoneNumberType::MOBILE;
        }
        return PhoneNumberType::UNKNOWN;
    }