libphonenumber\ShortNumberInfo::getInstance PHP Méthode

    public static function getInstance()
    {
        if (null === static::$instance) {
            static::$instance = new self(RegexBasedMatcher::create());
        }
        return static::$instance;
    }

 public function setUp()
 {
     self::$plusSymbol = pack('H*', 'efbc8b');
     PhoneNumberUtil::resetInstance();
     ShortNumberInfo::resetInstance();
     $this->phoneUtil = PhoneNumberUtil::getInstance(PhoneNumberUtilTest::TEST_META_DATA_FILE_PREFIX, CountryCodeToRegionCodeMapForTesting::$countryCodeToRegionCodeMapForTesting);
     $this->shortInfo = ShortNumberInfo::getInstance();
 }