Esempio n. 1
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 /**
  * Note in some regions, the national number can be written in two completely different ways
  * depending on whether it forms part of the NATIONAL format or INTERNATIONAL format. The
  * numberFormat parameter here is used to specify which format to use for those cases. If a
  * carrierCode is specified, this will be inserted into the formatted string to replace $CC.
  * @param string $number
  * @param PhoneMetadata $metadata
  * @param int $numberFormat PhoneNumberFormat
  * @param null|string $carrierCode
  * @return string
  */
 private function formatNsn($number, PhoneMetadata $metadata, $numberFormat, $carrierCode = null)
 {
     $intlNumberFormats = $metadata->intlNumberFormats();
     // When the intlNumberFormats exists, we use that to format national number for the
     // INTERNATIONAL format instead of using the numberDesc.numberFormats.
     $availableFormats = count($intlNumberFormats) == 0 || $numberFormat == PhoneNumberFormat::NATIONAL ? $metadata->numberFormats() : $metadata->intlNumberFormats();
     $formattingPattern = $this->chooseFormattingPatternForNumber($availableFormats, $number);
     return $formattingPattern === null ? $number : $this->formatNsnUsingPattern($number, $formattingPattern, $numberFormat, $carrierCode);
 }