If you use this library, and want to be notified about important changes, please sign up to * our mailing list. * * NOTE: A lot of methods in this class require Region Code strings. These must be provided using * ISO 3166-1 two-letter country-code format. These should be in upper-case. The list of the codes * can be found here: * http://www.iso.org/iso/country_codes/iso_3166_code_lists/country_names_and_code_elements.htm * * @author Shaopeng Jia * @author Lara Rennie * @see https://code.google.com/p/libphonenumber/ */ class PhoneNumberUtil { /** Flags to use when compiling regular expressions for phone numbers */ const REGEX_FLAGS = 'ui'; //Unicode and case insensitive // The minimum and maximum length of the national significant number. const MIN_LENGTH_FOR_NSN = 2; // The ITU says the maximum length should be 15, but we have found longer numbers in Germany. const MAX_LENGTH_FOR_NSN = 17; // We don't allow input strings for parsing to be longer than 250 chars. This prevents malicious // input from overflowing the regular-expression engine. const MAX_INPUT_STRING_LENGTH = 250; // The maximum length of the country calling code. const MAX_LENGTH_COUNTRY_CODE = 3; const REGION_CODE_FOR_NON_GEO_ENTITY = "001"; const META_DATA_FILE_PREFIX = 'PhoneNumberMetadata'; const TEST_META_DATA_FILE_PREFIX = 'PhoneNumberMetadataForTesting'; // Region-code for the unknown region. const UNKNOWN_REGION = "ZZ"; const NANPA_COUNTRY_CODE = 1; /* * The prefix that needs to be inserted in front of a Colombian landline number when dialed from * a mobile number in Colombia. */ const COLOMBIA_MOBILE_TO_FIXED_LINE_PREFIX = "3"; // The PLUS_SIGN signifies the international prefix. const PLUS_SIGN = '+'; const PLUS_CHARS = '++'; const STAR_SIGN = '*'; const RFC3966_EXTN_PREFIX = ";ext="; const RFC3966_PREFIX = "tel:"; const RFC3966_PHONE_CONTEXT = ";phone-context="; const RFC3966_ISDN_SUBADDRESS = ";isub="; // We use this pattern to check if the phone number has at least three letters in it - if so, then // we treat it as a number where some phone-number digits are represented by letters. const VALID_ALPHA_PHONE_PATTERN = "(?:.*?[A-Za-z]){3}.*"; // We accept alpha characters in phone numbers, ASCII only, upper and lower case. const VALID_ALPHA = "A-Za-z"; // Default extension prefix to use when formatting. This will be put in front of any extension // component of the number, after the main national number is formatted. For example, if you wish // the default extension formatting to be " extn: 3456", then you should specify " extn: " here // as the default extension prefix. This can be overridden by region-specific preferences. const DEFAULT_EXTN_PREFIX = " ext. "; // Regular expression of acceptable punctuation found in phone numbers. This excludes punctuation // found as a leading character only. // This consists of dash characters, white space characters, full stops, slashes, // square brackets, parentheses and tildes. It also includes the letter 'x' as that is found as a // placeholder for carrier information in some phone numbers. Full-width variants are also // present. const VALID_PUNCTUATION = "-x\xE2\x80\x90-\xE2\x80\x95\xE2\x88\x92\xE3\x83\xBC\xEF\xBC\x8D-\xEF\xBC\x8F \xC2\xA0\xC2\xAD\xE2\x80\x8B\xE2\x81\xA0\xE3\x80\x80()\xEF\xBC\x88\xEF\xBC\x89\xEF\xBC\xBB\xEF\xBC\xBD.\\[\\]/~\xE2\x81\x93\xE2\x88\xBC"; const DIGITS = "\\p{Nd}"; // Pattern that makes it easy to distinguish whether a region has a unique international dialing // prefix or not. If a region has a unique international prefix (e.g. 011 in USA), it will be // represented as a string that contains a sequence of ASCII digits. If there are multiple // available international prefixes in a region, they will be represented as a regex string that // always contains character(s) other than ASCII digits. // Note this regex also includes tilde, which signals waiting for the tone. const UNIQUE_INTERNATIONAL_PREFIX = "[\\d]+(?:[~\xE2\x81\x93\xE2\x88\xBC\xEF\xBD\x9E][\\d]+)?"; const NON_DIGITS_PATTERN = "(\\D+)"; // The FIRST_GROUP_PATTERN was originally set to $1 but there are some countries for which the // first group is not used in the national pattern (e.g. Argentina) so the $1 group does not match // correctly. Therefore, we use \d, so that the first group actually used in the pattern will be // matched. const FIRST_GROUP_PATTERN = "(\\$\\d)"; const NP_PATTERN = '\\$NP'; const FG_PATTERN = '\\$FG'; const CC_PATTERN = '\\$CC'; // A pattern that is used to determine if the national prefix formatting rule has the first group // only, i.e., does not start with the national prefix. Note that the pattern explicitly allows // for unbalanced parentheses. const FIRST_GROUP_ONLY_PREFIX_PATTERN = '\\(?\\$1\\)?'; public static $PLUS_CHARS_PATTERN; private static $SEPARATOR_PATTERN; private static $CAPTURING_DIGIT_PATTERN; private static $VALID_START_CHAR_PATTERN = null; private static $SECOND_NUMBER_START_PATTERN = "[\\\\/] *x"; private static $UNWANTED_END_CHAR_PATTERN = "[[\\P{N}&&\\P{L}]&&[^#]]+$"; private static $DIALLABLE_CHAR_MAPPINGS = array(); private static $CAPTURING_EXTN_DIGITS; /** * @var PhoneNumberUtil */ private static $instance = null; /** * Only upper-case variants of alpha characters are stored. * @var array */ private static $ALPHA_MAPPINGS = array( 'A' => '2', 'B' => '2', 'C' => '2', 'D' => '3', 'E' => '3', 'F' => '3', 'G' => '4', 'H' => '4', 'I' => '4', 'J' => '5', 'K' => '5', 'L' => '5', 'M' => '6', 'N' => '6', 'O' => '6', 'P' => '7', 'Q' => '7', 'R' => '7', 'S' => '7', 'T' => '8', 'U' => '8', 'V' => '8', 'W' => '9', 'X' => '9', 'Y' => '9', 'Z' => '9', ); /** * Map of country calling codes that use a mobile token before the area code. One example of when * this is relevant is when determining the length of the national destination code, which should * be the length of the area code plus the length of the mobile token. * @var array */ private static $MOBILE_TOKEN_MAPPINGS; /** * For performance reasons, amalgamate both into one map. * @var array */ private static $ALPHA_PHONE_MAPPINGS; /** * Separate map of all symbols that we wish to retain when formatting alpha numbers. This * includes digits, ASCII letters and number grouping symbols such as "-" and " ". * @var array */ private static $ALL_PLUS_NUMBER_GROUPING_SYMBOLS; /** * Simple ASCII digits map used to populate ALPHA_PHONE_MAPPINGS and * ALL_PLUS_NUMBER_GROUPING_SYMBOLS. * @var array */ private static $asciiDigitMappings = array( '0' => '0', '1' => '1', '2' => '2', '3' => '3', '4' => '4', '5' => '5', '6' => '6', '7' => '7', '8' => '8', '9' => '9', ); /** * Regexp of all possible ways to write extensions, for use when parsing. This will be run as a * case-insensitive regexp match. Wide character versions are also provided after each ASCII * version. * @var String */ private static $EXTN_PATTERNS_FOR_PARSING; private static $EXTN_PATTERN = null; private static $VALID_PHONE_NUMBER_PATTERN; private static $MIN_LENGTH_PHONE_NUMBER_PATTERN; /** * Regular expression of viable phone numbers. This is location independent. Checks we have at * least three leading digits, and only valid punctuation, alpha characters and * digits in the phone number. Does not include extension data. * The symbol 'x' is allowed here as valid punctuation since it is often used as a placeholder for * carrier codes, for example in Brazilian phone numbers. We also allow multiple "+" characters at * the start. * Corresponds to the following: * [digits]{minLengthNsn}| * plus_sign*(([punctuation]|[star])*[digits]){3,}([punctuation]|[star]|[digits]|[alpha])* * * The first reg-ex is to allow short numbers (two digits long) to be parsed if they are entered * as "15" etc, but only if there is no punctuation in them. The second expression restricts the * number of digits to three or more, but then allows them to be in international form, and to * have alpha-characters and punctuation. * * Note VALID_PUNCTUATION starts with a -, so must be the first in the range. * @var string */ private static $VALID_PHONE_NUMBER; private static $numericCharacters = array( "\xef\xbc\x90" => 0, "\xef\xbc\x91" => 1, "\xef\xbc\x92" => 2, "\xef\xbc\x93" => 3, "\xef\xbc\x94" => 4, "\xef\xbc\x95" => 5, "\xef\xbc\x96" => 6, "\xef\xbc\x97" => 7, "\xef\xbc\x98" => 8, "\xef\xbc\x99" => 9, "\xd9\xa0" => 0, "\xd9\xa1" => 1, "\xd9\xa2" => 2, "\xd9\xa3" => 3, "\xd9\xa4" => 4, "\xd9\xa5" => 5, "\xd9\xa6" => 6, "\xd9\xa7" => 7, "\xd9\xa8" => 8, "\xd9\xa9" => 9, "\xdb\xb0" => 0, "\xdb\xb1" => 1, "\xdb\xb2" => 2, "\xdb\xb3" => 3, "\xdb\xb4" => 4, "\xdb\xb5" => 5, "\xdb\xb6" => 6, "\xdb\xb7" => 7, "\xdb\xb8" => 8, "\xdb\xb9" => 9, "\xe1\xa0\x90" => 0, "\xe1\xa0\x91" => 1, "\xe1\xa0\x92" => 2, "\xe1\xa0\x93" => 3, "\xe1\xa0\x94" => 4, "\xe1\xa0\x95" => 5, "\xe1\xa0\x96" => 6, "\xe1\xa0\x97" => 7, "\xe1\xa0\x98" => 8, "\xe1\xa0\x99" => 9, ); /** * The set of county calling codes that map to the non-geo entity region ("001"). * @var array */ private $countryCodesForNonGeographicalRegion = array(); /** * The set of regions the library supports. * @var array */ private $supportedRegions = array(); /** * A mapping from a country calling code to the region codes which denote the region represented * by that country calling code. In the case of multiple regions sharing a calling code, such as * the NANPA regions, the one indicated with "isMainCountryForCode" in the metadata should be * first. * @var array */ private $countryCallingCodeToRegionCodeMap = array(); /** * The set of regions that share country calling code 1. * @var array */ private $nanpaRegions = array(); /** * @var MetadataSourceInterface */ private $metadataSource; /** * This class implements a singleton, so the only constructor is private. * @param MetadataSourceInterface $metadataSource * @param $countryCallingCodeToRegionCodeMap */ private function __construct(MetadataSourceInterface $metadataSource, $countryCallingCodeToRegionCodeMap) { $this->metadataSource = $metadataSource; $this->countryCallingCodeToRegionCodeMap = $countryCallingCodeToRegionCodeMap; $this->init(); self::initCapturingExtnDigits(); self::initExtnPatterns(); self::initExtnPattern(); self::$PLUS_CHARS_PATTERN = "[" . self::PLUS_CHARS . "]+"; self::$SEPARATOR_PATTERN = "[" . self::VALID_PUNCTUATION . "]+"; self::$CAPTURING_DIGIT_PATTERN = "(" . self::DIGITS . ")"; self::$VALID_START_CHAR_PATTERN = "[" . self::PLUS_CHARS . self::DIGITS . "]"; self::$ALPHA_PHONE_MAPPINGS = self::$ALPHA_MAPPINGS + self::$asciiDigitMappings; self::$DIALLABLE_CHAR_MAPPINGS = self::$asciiDigitMappings; self::$DIALLABLE_CHAR_MAPPINGS[self::PLUS_SIGN] = self::PLUS_SIGN; self::$DIALLABLE_CHAR_MAPPINGS['*'] = '*'; self::$ALL_PLUS_NUMBER_GROUPING_SYMBOLS = array(); // Put (lower letter -> upper letter) and (upper letter -> upper letter) mappings. foreach (self::$ALPHA_MAPPINGS as $c => $value) { self::$ALL_PLUS_NUMBER_GROUPING_SYMBOLS[strtolower($c)] = $c; self::$ALL_PLUS_NUMBER_GROUPING_SYMBOLS[$c] = $c; } self::$ALL_PLUS_NUMBER_GROUPING_SYMBOLS += self::$asciiDigitMappings; self::$ALL_PLUS_NUMBER_GROUPING_SYMBOLS["-"] = '-'; self::$ALL_PLUS_NUMBER_GROUPING_SYMBOLS["\xEF\xBC\x8D"] = '-'; self::$ALL_PLUS_NUMBER_GROUPING_SYMBOLS["\xE2\x80\x90"] = '-'; self::$ALL_PLUS_NUMBER_GROUPING_SYMBOLS["\xE2\x80\x91"] = '-'; self::$ALL_PLUS_NUMBER_GROUPING_SYMBOLS["\xE2\x80\x92"] = '-'; self::$ALL_PLUS_NUMBER_GROUPING_SYMBOLS["\xE2\x80\x93"] = '-'; self::$ALL_PLUS_NUMBER_GROUPING_SYMBOLS["\xE2\x80\x94"] = '-'; self::$ALL_PLUS_NUMBER_GROUPING_SYMBOLS["\xE2\x80\x95"] = '-'; self::$ALL_PLUS_NUMBER_GROUPING_SYMBOLS["\xE2\x88\x92"] = '-'; self::$ALL_PLUS_NUMBER_GROUPING_SYMBOLS["/"] = "/"; self::$ALL_PLUS_NUMBER_GROUPING_SYMBOLS["\xEF\xBC\x8F"] = "/"; self::$ALL_PLUS_NUMBER_GROUPING_SYMBOLS[" "] = " "; self::$ALL_PLUS_NUMBER_GROUPING_SYMBOLS["\xE3\x80\x80"] = " "; self::$ALL_PLUS_NUMBER_GROUPING_SYMBOLS["\xE2\x81\xA0"] = " "; self::$ALL_PLUS_NUMBER_GROUPING_SYMBOLS["."] = "."; self::$ALL_PLUS_NUMBER_GROUPING_SYMBOLS["\xEF\xBC\x8E"] = "."; self::$MIN_LENGTH_PHONE_NUMBER_PATTERN = "[" . self::DIGITS . "]{" . self::MIN_LENGTH_FOR_NSN . "}"; self::$VALID_PHONE_NUMBER = "[" . self::PLUS_CHARS . "]*(?:[" . self::VALID_PUNCTUATION . self::STAR_SIGN . "]*[" . self::DIGITS . "]){3,}[" . self::VALID_PUNCTUATION . self::STAR_SIGN . self::VALID_ALPHA . self::DIGITS . "]*"; self::$VALID_PHONE_NUMBER_PATTERN = "%^" . self::$MIN_LENGTH_PHONE_NUMBER_PATTERN . "$|^" . self::$VALID_PHONE_NUMBER . "(?:" . self::$EXTN_PATTERNS_FOR_PARSING . ")?$%" . self::REGEX_FLAGS; self::$UNWANTED_END_CHAR_PATTERN = "[^" . self::DIGITS . self::VALID_ALPHA . "#]+$"; self::$MOBILE_TOKEN_MAPPINGS = array(); self::$MOBILE_TOKEN_MAPPINGS['52'] = "1"; self::$MOBILE_TOKEN_MAPPINGS['54'] = "9"; } /** * Gets a {@link PhoneNumberUtil} instance to carry out international phone number formatting, * parsing, or validation. The instance is loaded with phone number metadata for a number of most * commonly used regions. * *
The {@link PhoneNumberUtil} is implemented as a singleton. Therefore, calling getInstance
     * multiple times will only result in one instance being created.
     *
     * @param string $baseFileLocation
     * @param array|null $countryCallingCodeToRegionCodeMap
     * @param MetadataLoaderInterface|null $metadataLoader
     * @param MetadataSourceInterface|null $metadataSource
     * @return PhoneNumberUtil instance
     */
    public static function getInstance($baseFileLocation = self::META_DATA_FILE_PREFIX, array $countryCallingCodeToRegionCodeMap = null, MetadataLoaderInterface $metadataLoader = null, MetadataSourceInterface $metadataSource = null)
    {
        if (self::$instance === null) {
            if ($countryCallingCodeToRegionCodeMap === null) {
                $countryCallingCodeToRegionCodeMap = CountryCodeToRegionCodeMap::$countryCodeToRegionCodeMap;
            }
            if ($metadataLoader === null) {
                $metadataLoader = new DefaultMetadataLoader();
            }
            if ($metadataSource === null) {
                $metadataSource = new MultiFileMetadataSourceImpl($metadataLoader, __DIR__ . '/data/' . $baseFileLocation);
            }
            self::$instance = new PhoneNumberUtil($metadataSource, $countryCallingCodeToRegionCodeMap);
        }
        return self::$instance;
    }
    private function init()
    {
        foreach ($this->countryCallingCodeToRegionCodeMap as $countryCode => $regionCodes) {
            // We can assume that if the country calling code maps to the non-geo entity region code then
            // that's the only region code it maps to.
            if (count($regionCodes) == 1 && self::REGION_CODE_FOR_NON_GEO_ENTITY === $regionCodes[0]) {
                // This is the subset of all country codes that map to the non-geo entity region code.
                $this->countryCodesForNonGeographicalRegion[] = $countryCode;
            } else {
                // The supported regions set does not include the "001" non-geo entity region code.
                $this->supportedRegions = array_merge($this->supportedRegions, $regionCodes);
            }
        }
        // If the non-geo entity still got added to the set of supported regions it must be because
        // there are entries that list the non-geo entity alongside normal regions (which is wrong).
        // If we discover this, remove the non-geo entity from the set of supported regions and log.
        $idx_region_code_non_geo_entity = array_search(self::REGION_CODE_FOR_NON_GEO_ENTITY, $this->supportedRegions);
        if ($idx_region_code_non_geo_entity !== false) {
            unset($this->supportedRegions[$idx_region_code_non_geo_entity]);
        }
        $this->nanpaRegions = $this->countryCallingCodeToRegionCodeMap[self::NANPA_COUNTRY_CODE];
    }
    private static function initCapturingExtnDigits()
    {
        self::$CAPTURING_EXTN_DIGITS = "(" . self::DIGITS . "{1,7})";
    }
    private static function initExtnPatterns()
    {
        // One-character symbols that can be used to indicate an extension.
        $singleExtnSymbolsForMatching = "x\xEF\xBD\x98#\xEF\xBC\x83~\xEF\xBD\x9E";
        // For parsing, we are slightly more lenient in our interpretation than for matching. Here we
        // allow a "comma" as a possible extension indicator. When matching, this is hardly ever used to
        // indicate this.
        $singleExtnSymbolsForParsing = "," . $singleExtnSymbolsForMatching;
        self::$EXTN_PATTERNS_FOR_PARSING = self::createExtnPattern($singleExtnSymbolsForParsing);
    }
    // The FIRST_GROUP_PATTERN was originally set to $1 but there are some countries for which the
    // first group is not used in the national pattern (e.g. Argentina) so the $1 group does not match
    // correctly.  Therefore, we use \d, so that the first group actually used in the pattern will be
    // matched.
    /**
     * Helper initialiser method to create the regular-expression pattern to match extensions,
     * allowing the one-char extension symbols provided by {@code singleExtnSymbols}.
     * @param string $singleExtnSymbols
     * @return string
     */
    private static function createExtnPattern($singleExtnSymbols)
    {
        // There are three regular expressions here. The first covers RFC 3966 format, where the
        // extension is added using ";ext=". The second more generic one starts with optional white
        // space and ends with an optional full stop (.), followed by zero or more spaces/tabs and then
        // the numbers themselves. The other one covers the special case of American numbers where the
        // extension is written with a hash at the end, such as "- 503#".
        // Note that the only capturing groups should be around the digits that you want to capture as
        // part of the extension, or else parsing will fail!
        // Canonical-equivalence doesn't seem to be an option with Android java, so we allow two options
        // for representing the accented o - the character itself, and one in the unicode decomposed
        // form with the combining acute accent.
        return (self::RFC3966_EXTN_PREFIX . self::$CAPTURING_EXTN_DIGITS . "|" . "[ \xC2\xA0\\t,]*" .
            "(?:e?xt(?:ensi(?:o\xCC\x81?|\xC3\xB3))?n?|(?:\xEF\xBD\x85)?\xEF\xBD\x98\xEF\xBD\x94(?:\xEF\xBD\x8E)?|" .
            "[" . $singleExtnSymbols . "]|int|\xEF\xBD\x89\xEF\xBD\x8E\xEF\xBD\x94|anexo)" .
            "[:\\.\xEF\xBC\x8E]?[ \xC2\xA0\\t,-]*" . self::$CAPTURING_EXTN_DIGITS . "#?|" .
            "[- ]+(" . self::DIGITS . "{1,5})#");
    }
    private static function initExtnPattern()
    {
        self::$EXTN_PATTERN = "/(?:" . self::$EXTN_PATTERNS_FOR_PARSING . ")$/" . self::REGEX_FLAGS;
    }
    /**
     * Used for testing purposes only to reset the PhoneNumberUtil singleton to null.
     */
    public static function resetInstance()
    {
        self::$instance = null;
    }
    /**
     * Converts all alpha characters in a number to their respective digits on a keypad, but retains
     * existing formatting.
     * @param string $number
     * @return string
     */
    public static function convertAlphaCharactersInNumber($number)
    {
        return self::normalizeHelper($number, self::$ALPHA_PHONE_MAPPINGS, false);
    }
    /**
     * Normalizes a string of characters representing a phone number by replacing all characters found
     * in the accompanying map with the values therein, and stripping all other characters if
     * removeNonMatches is true.
     *
     * @param string $number a string of characters representing a phone number
     * @param array $normalizationReplacements a mapping of characters to what they should be replaced by in
     * the normalized version of the phone number
     * @param bool $removeNonMatches indicates whether characters that are not able to be replaced
     * should be stripped from the number. If this is false, they will be left unchanged in the number.
     * @return string the normalized string version of the phone number
     */
    private static function normalizeHelper($number, array $normalizationReplacements, $removeNonMatches)
    {
        $normalizedNumber = "";
        $strLength = mb_strlen($number, 'UTF-8');
        for ($i = 0; $i < $strLength; $i++) {
            $character = mb_substr($number, $i, 1, 'UTF-8');
            if (isset($normalizationReplacements[mb_strtoupper($character, 'UTF-8')])) {
                $normalizedNumber .= $normalizationReplacements[mb_strtoupper($character, 'UTF-8')];
            } else {
                if (!$removeNonMatches) {
                    $normalizedNumber .= $character;
                }
            }
            // If neither of the above are true, we remove this character.
        }
        return $normalizedNumber;
    }
    /**
     * Helper function to check if the national prefix formatting rule has the first group only, i.e.,
     * does not start with the national prefix.
     * @param string $nationalPrefixFormattingRule
     * @return bool
     */
    public static function formattingRuleHasFirstGroupOnly($nationalPrefixFormattingRule)
    {
        $m = preg_match(self::FIRST_GROUP_ONLY_PREFIX_PATTERN, $nationalPrefixFormattingRule);
        return $m > 0;
    }
    /**
     * Convenience method to get a list of what regions the library has metadata for.
     * @return array
     */
    public function getSupportedRegions()
    {
        return $this->supportedRegions;
    }
    /**
     * Convenience method to get a list of what global network calling codes the library has metadata
     * for.
     * @return array
     */
    public function getSupportedGlobalNetworkCallingCodes()
    {
        return $this->countryCodesForNonGeographicalRegion;
    }
    /**
     * Gets the length of the geographical area code from the {@code nationalNumber} field of the
     * PhoneNumber object passed in, so that clients could use it to split a national significant
     * number into geographical area code and subscriber number. It works in such a way that the
     * resultant subscriber number should be diallable, at least on some devices. An example of how
     * this could be used:
     *
     * 
     * $phoneUtil = PhoneNumberUtil::getInstance();
     * $number = $phoneUtil->parse("16502530000", "US");
     * $nationalSignificantNumber = $phoneUtil->getNationalSignificantNumber($number);
     *
     * $areaCodeLength = $phoneUtil->getLengthOfGeographicalAreaCode($number);
     * if ($areaCodeLength > 0)
     * {
     *     $areaCode = substr($nationalSignificantNumber, 0,$areaCodeLength);
     *     $subscriberNumber = substr($nationalSignificantNumber, $areaCodeLength);
     * } else {
     *     $areaCode = "";
     *     $subscriberNumber = $nationalSignificantNumber;
     * }
     * 
     *
     * N.B.: area code is a very ambiguous concept, so the I18N team generally recommends against
     * using it for most purposes, but recommends using the more general {@code nationalNumber}
     * instead. Read the following carefully before deciding to use this method:
     * 
     * $phoneUtil = PhoneNumberUtil::getInstance();
     * $number = $phoneUtil->parse("18002530000", "US");
     * $nationalSignificantNumber = $phoneUtil->getNationalSignificantNumber($number);
     *
     * $nationalDestinationCodeLength = $phoneUtil->getLengthOfNationalDestinationCode($number);
     * if ($nationalDestinationCodeLength > 0) {
     *     $nationalDestinationCode = substr($nationalSignificantNumber, 0, $nationalDestinationCodeLength);
     *     $subscriberNumber = substr($nationalSignificantNumber, $nationalDestinationCodeLength);
     * } else {
     *     $nationalDestinationCode = "";
     *     $subscriberNumber = $nationalSignificantNumber;
     * }
     * 
     *
     * Refer to the unit tests to see the difference between this function and
     * {@link #getLengthOfGeographicalAreaCode}.
     *
     * @param PhoneNumber $number the PhoneNumber object for which clients want to know the length of the NDC.
     * @return int the length of NDC of the PhoneNumber object passed in.
     */
    public function getLengthOfNationalDestinationCode(PhoneNumber $number)
    {
        if ($number->hasExtension()) {
            // We don't want to alter the proto given to us, but we don't want to include the extension
            // when we format it, so we copy it and clear the extension here.
            $copiedProto = new PhoneNumber();
            $copiedProto->mergeFrom($number);
            $copiedProto->clearExtension();
        } else {
            $copiedProto = clone $number;
        }
        $nationalSignificantNumber = $this->format($copiedProto, PhoneNumberFormat::INTERNATIONAL);
        $numberGroups = preg_split('/' . self::NON_DIGITS_PATTERN . '/', $nationalSignificantNumber);
        // The pattern will start with "+COUNTRY_CODE " so the first group will always be the empty
        // string (before the + symbol) and the second group will be the country calling code. The third
        // group will be area code if it is not the last group.
        if (count($numberGroups) <= 3) {
            return 0;
        }
        if ($this->getNumberType($number) == PhoneNumberType::MOBILE) {
            // For example Argentinian mobile numbers, when formatted in the international format, are in
            // the form of +54 9 NDC XXXX.... As a result, we take the length of the third group (NDC) and
            // add the length of the second group (which is the mobile token), which also forms part of
            // the national significant number. This assumes that the mobile token is always formatted
            // separately from the rest of the phone number.
            $mobileToken = self::getCountryMobileToken($number->getCountryCode());
            if ($mobileToken !== "") {
                return mb_strlen($numberGroups[2]) + mb_strlen($numberGroups[3]);
            }
        }
        return mb_strlen($numberGroups[2]);
    }
    /**
     * Formats a phone number in the specified format using default rules. Note that this does not
     * promise to produce a phone number that the user can dial from where they are - although we do
     * format in either 'national' or 'international' format depending on what the client asks for, we
     * do not currently support a more abbreviated format, such as for users in the same "area" who
     * could potentially dial the number without area code. Note that if the phone number has a
     * country calling code of 0 or an otherwise invalid country calling code, we cannot work out
     * which formatting rules to apply so we return the national significant number with no formatting
     * applied.
     *
     * @param PhoneNumber $number the phone number to be formatted
     * @param int $numberFormat the PhoneNumberFormat the phone number should be formatted into
     * @return string the formatted phone number
     */
    public function format(PhoneNumber $number, $numberFormat)
    {
        if ($number->getNationalNumber() == 0 && $number->hasRawInput()) {
            // Unparseable numbers that kept their raw input just use that.
            // This is the only case where a number can be formatted as E164 without a
            // leading '+' symbol (but the original number wasn't parseable anyway).
            // TODO: Consider removing the 'if' above so that unparseable
            // strings without raw input format to the empty string instead of "+00"
            $rawInput = $number->getRawInput();
            if (mb_strlen($rawInput) > 0) {
                return $rawInput;
            }
        }
        $metadata = null;
        $formattedNumber = "";
        $countryCallingCode = $number->getCountryCode();
        $nationalSignificantNumber = $this->getNationalSignificantNumber($number);
        if ($numberFormat == PhoneNumberFormat::E164) {
            // Early exit for E164 case (even if the country calling code is invalid) since no formatting
            // of the national number needs to be applied. Extensions are not formatted.
            $formattedNumber .= $nationalSignificantNumber;
            $this->prefixNumberWithCountryCallingCode($countryCallingCode, PhoneNumberFormat::E164, $formattedNumber);
        } elseif (!$this->hasValidCountryCallingCode($countryCallingCode)) {
            $formattedNumber .= $nationalSignificantNumber;
        } else {
            // Note getRegionCodeForCountryCode() is used because formatting information for regions which
            // share a country calling code is contained by only one region for performance reasons. For
            // example, for NANPA regions it will be contained in the metadata for US.
            $regionCode = $this->getRegionCodeForCountryCode($countryCallingCode);
            // Metadata cannot be null because the country calling code is valid (which means that the
            // region code cannot be ZZ and must be one of our supported region codes).
            $metadata = $this->getMetadataForRegionOrCallingCode($countryCallingCode, $regionCode);
            $formattedNumber .= $this->formatNsn($nationalSignificantNumber, $metadata, $numberFormat);
            $this->prefixNumberWithCountryCallingCode($countryCallingCode, $numberFormat, $formattedNumber);
        }
        $this->maybeAppendFormattedExtension($number, $metadata, $numberFormat, $formattedNumber);
        return $formattedNumber;
    }
    /**
     * A helper function that is used by format and formatByPattern.
     * @param int $countryCallingCode
     * @param int $numberFormat PhoneNumberFormat
     * @param string $formattedNumber
     */
    private function prefixNumberWithCountryCallingCode($countryCallingCode, $numberFormat, &$formattedNumber)
    {
        switch ($numberFormat) {
            case PhoneNumberFormat::E164:
                $formattedNumber = self::PLUS_SIGN . $countryCallingCode . $formattedNumber;
                return;
            case PhoneNumberFormat::INTERNATIONAL:
                $formattedNumber = self::PLUS_SIGN . $countryCallingCode . " " . $formattedNumber;
                return;
            case PhoneNumberFormat::RFC3966:
                $formattedNumber = self::RFC3966_PREFIX . self::PLUS_SIGN . $countryCallingCode . "-" . $formattedNumber;
                return;
            case PhoneNumberFormat::NATIONAL:
            default:
                return;
        }
    }
    /**
     * Helper function to check the country calling code is valid.
     * @param int $countryCallingCode
     * @return bool
     */
    private function hasValidCountryCallingCode($countryCallingCode)
    {
        return isset($this->countryCallingCodeToRegionCodeMap[$countryCallingCode]);
    }
    /**
     * Returns the region code that matches the specific country calling code. In the case of no
     * region code being found, ZZ will be returned. In the case of multiple regions, the one
     * designated in the metadata as the "main" region for this calling code will be returned. If the
     * countryCallingCode entered is valid but doesn't match a specific region (such as in the case of
     * non-geographical calling codes like 800) the value "001" will be returned (corresponding to
     * the value for World in the UN M.49 schema).
     *
     * @param int $countryCallingCode
     * @return string
     */
    public function getRegionCodeForCountryCode($countryCallingCode)
    {
        $regionCodes = isset($this->countryCallingCodeToRegionCodeMap[$countryCallingCode]) ? $this->countryCallingCodeToRegionCodeMap[$countryCallingCode] : null;
        return $regionCodes === null ? self::UNKNOWN_REGION : $regionCodes[0];
    }
    /**
     * 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);
    }
    /**
     * @param NumberFormat[] $availableFormats
     * @param string $nationalNumber
     * @return NumberFormat|null
     */
    public function chooseFormattingPatternForNumber(array $availableFormats, $nationalNumber)
    {
        foreach ($availableFormats as $numFormat) {
            $leadingDigitsPatternMatcher = null;
            $size = $numFormat->leadingDigitsPatternSize();
            // We always use the last leading_digits_pattern, as it is the most detailed.
            if ($size > 0) {
                $leadingDigitsPatternMatcher = new Matcher(
                    $numFormat->getLeadingDigitsPattern($size - 1),
                    $nationalNumber
                );
            }
            if ($size == 0 || $leadingDigitsPatternMatcher->lookingAt()) {
                $m = new Matcher($numFormat->getPattern(), $nationalNumber);
                if ($m->matches() > 0) {
                    return $numFormat;
                }
            }
        }
        return null;
    }
    /**
     * Note that carrierCode is optional - if null or an empty string, no carrier code replacement
     * will take place.
     * @param string $nationalNumber
     * @param NumberFormat $formattingPattern
     * @param int $numberFormat PhoneNumberFormat
     * @param null|string $carrierCode
     * @return string
     */
    private function formatNsnUsingPattern(
        $nationalNumber,
        NumberFormat $formattingPattern,
        $numberFormat,
        $carrierCode = null
    ) {
        $numberFormatRule = $formattingPattern->getFormat();
        $m = new Matcher($formattingPattern->getPattern(), $nationalNumber);
        if ($numberFormat === PhoneNumberFormat::NATIONAL &&
            $carrierCode !== null && mb_strlen($carrierCode) > 0 &&
            mb_strlen($formattingPattern->getDomesticCarrierCodeFormattingRule()) > 0
        ) {
            // Replace the $CC in the formatting rule with the desired carrier code.
            $carrierCodeFormattingRule = $formattingPattern->getDomesticCarrierCodeFormattingRule();
            $ccPatternMatcher = new Matcher(self::CC_PATTERN, $carrierCodeFormattingRule);
            $carrierCodeFormattingRule = $ccPatternMatcher->replaceFirst($carrierCode);
            // Now replace the $FG in the formatting rule with the first group and the carrier code
            // combined in the appropriate way.
            $firstGroupMatcher = new Matcher(self::FIRST_GROUP_PATTERN, $numberFormatRule);
            $numberFormatRule = $firstGroupMatcher->replaceFirst($carrierCodeFormattingRule);
            $formattedNationalNumber = $m->replaceAll($numberFormatRule);
        } else {
            // Use the national prefix formatting rule instead.
            $nationalPrefixFormattingRule = $formattingPattern->getNationalPrefixFormattingRule();
            if ($numberFormat == PhoneNumberFormat::NATIONAL &&
                $nationalPrefixFormattingRule !== null &&
                mb_strlen($nationalPrefixFormattingRule) > 0
            ) {
                $firstGroupMatcher = new Matcher(self::FIRST_GROUP_PATTERN, $numberFormatRule);
                $formattedNationalNumber = $m->replaceAll(
                    $firstGroupMatcher->replaceFirst($nationalPrefixFormattingRule)
                );
            } else {
                $formattedNationalNumber = $m->replaceAll($numberFormatRule);
            }
        }
        if ($numberFormat == PhoneNumberFormat::RFC3966) {
            // Strip any leading punctuation.
            $matcher = new Matcher(self::$SEPARATOR_PATTERN, $formattedNationalNumber);
            if ($matcher->lookingAt()) {
                $formattedNationalNumber = $matcher->replaceFirst("");
            }
            // Replace the rest with a dash between each number group.
            $formattedNationalNumber = $matcher->reset($formattedNationalNumber)->replaceAll("-");
        }
        return $formattedNationalNumber;
    }
    /**
     * Appends the formatted extension of a phone number to formattedNumber, if the phone number had
     * an extension specified.
     *
     * @param PhoneNumber $number
     * @param PhoneMetadata|null $metadata
     * @param int $numberFormat PhoneNumberFormat
     * @param string $formattedNumber
     */
    private function maybeAppendFormattedExtension(PhoneNumber $number, $metadata, $numberFormat, &$formattedNumber)
    {
        if ($number->hasExtension() && mb_strlen($number->getExtension()) > 0) {
            if ($numberFormat === PhoneNumberFormat::RFC3966) {
                $formattedNumber .= self::RFC3966_EXTN_PREFIX . $number->getExtension();
            } else {
                if (!empty($metadata) && $metadata->hasPreferredExtnPrefix()) {
                    $formattedNumber .= $metadata->getPreferredExtnPrefix() . $number->getExtension();
                } else {
                    $formattedNumber .= self::DEFAULT_EXTN_PREFIX . $number->getExtension();
                }
            }
        }
    }
    /**
     * Returns the mobile token for the provided country calling code if it has one, otherwise
     * returns an empty string. A mobile token is a number inserted before the area code when dialing
     * a mobile number from that country from abroad.
     *
     * @param int $countryCallingCode the country calling code for which we want the mobile token
     * @return string the mobile token, as a string, for the given country calling code
     */
    public static function getCountryMobileToken($countryCallingCode)
    {
        if (array_key_exists($countryCallingCode, self::$MOBILE_TOKEN_MAPPINGS)) {
            return self::$MOBILE_TOKEN_MAPPINGS[$countryCallingCode];
        }
        return "";
    }
    /**
     * Checks if the number is a valid vanity (alpha) number such as 800 MICROSOFT. A valid vanity
     * number will start with at least 3 digits and will have three or more alpha characters. This
     * does not do region-specific checks - to work out if this number is actually valid for a region,
     * it should be parsed and methods such as {@link #isPossibleNumberWithReason} and
     * {@link #isValidNumber} should be used.
     *
     * @param string $number the number that needs to be checked
     * @return bool true if the number is a valid vanity number
     */
    public function isAlphaNumber($number)
    {
        if (!$this->isViablePhoneNumber($number)) {
            // Number is too short, or doesn't match the basic phone number pattern.
            return false;
        }
        $this->maybeStripExtension($number);
        return (bool)preg_match('/' . self::VALID_ALPHA_PHONE_PATTERN . '/' . self::REGEX_FLAGS, $number);
    }
    /**
     * Checks to see if the string of characters could possibly be a phone number at all. At the
     * moment, checks to see that the string begins with at least 2 digits, ignoring any punctuation
     * commonly found in phone numbers.
     * This method does not require the number to be normalized in advance - but does assume that
     * leading non-number symbols have been removed, such as by the method extractPossibleNumber.
     *
     * @param string $number to be checked for viability as a phone number
     * @return boolean true if the number could be a phone number of some sort, otherwise false
     */
    public static function isViablePhoneNumber($number)
    {
        if (mb_strlen($number) < self::MIN_LENGTH_FOR_NSN) {
            return false;
        }
        $validPhoneNumberPattern = self::getValidPhoneNumberPattern();
        $m = preg_match($validPhoneNumberPattern, $number);
        return $m > 0;
    }
    /**
     * We append optionally the extension pattern to the end here, as a valid phone number may
     * have an extension prefix appended, followed by 1 or more digits.
     * @return string
     */
    private static function getValidPhoneNumberPattern()
    {
        return self::$VALID_PHONE_NUMBER_PATTERN;
    }
    /**
     * Strips any extension (as in, the part of the number dialled after the call is connected,
     * usually indicated with extn, ext, x or similar) from the end of the number, and returns it.
     *
     * @param string $number the non-normalized telephone number that we wish to strip the extension from
     * @return string the phone extension
     */
    private function maybeStripExtension(&$number)
    {
        $matches = array();
        $find = preg_match(self::$EXTN_PATTERN, $number, $matches, PREG_OFFSET_CAPTURE);
        // If we find a potential extension, and the number preceding this is a viable number, we assume
        // it is an extension.
        if ($find > 0 && $this->isViablePhoneNumber(substr($number, 0, $matches[0][1]))) {
            // The numbers are captured into groups in the regular expression.
            for ($i = 1, $length = count($matches); $i <= $length; $i++) {
                if ($matches[$i][0] != "") {
                    // We go through the capturing groups until we find one that captured some digits. If none
                    // did, then we will return the empty string.
                    $extension = $matches[$i][0];
                    $number = substr($number, 0, $matches[0][1]);
                    return $extension;
                }
            }
        }
        return "";
    }
    /**
     * Parses a string and returns it in proto buffer format. This method differs from {@link #parse}
     * in that it always populates the raw_input field of the protocol buffer with numberToParse as
     * well as the country_code_source field.
     *
     * @param string $numberToParse number that we are attempting to parse. This can contain formatting
     *                                  such as +, ( and -, as well as a phone number extension. It can also
     *                                  be provided in RFC3966 format.
     * @param string $defaultRegion region that we are expecting the number to be from. This is only used
     *                                  if the number being parsed is not written in international format.
     *                                  The country calling code for the number in this case would be stored
     *                                  as that of the default region supplied.
     * @param PhoneNumber $phoneNumber
     * @return PhoneNumber              a phone number proto buffer filled with the parsed number
     */
    public function parseAndKeepRawInput($numberToParse, $defaultRegion, PhoneNumber $phoneNumber = null)
    {
        if ($phoneNumber === null) {
            $phoneNumber = new PhoneNumber();
        }
        $this->parseHelper($numberToParse, $defaultRegion, true, true, $phoneNumber);
        return $phoneNumber;
    }
    /**
     * A helper function to set the values related to leading zeros in a PhoneNumber.
     * @param string $nationalNumber
     * @param PhoneNumber $phoneNumber
     */
    public static function setItalianLeadingZerosForPhoneNumber($nationalNumber, PhoneNumber $phoneNumber)
    {
        if (strlen($nationalNumber) > 1 && substr($nationalNumber, 0, 1) == '0') {
            $phoneNumber->setItalianLeadingZero(true);
            $numberOfLeadingZeros = 1;
            // Note that if the national number is all "0"s, the last "0" is not counted as a leading
            // zero.
            while ($numberOfLeadingZeros < (strlen($nationalNumber) - 1) &&
                substr($nationalNumber, $numberOfLeadingZeros, 1) == '0') {
                $numberOfLeadingZeros++;
            }
            if ($numberOfLeadingZeros != 1) {
                $phoneNumber->setNumberOfLeadingZeros($numberOfLeadingZeros);
            }
        }
    }
    /**
     * Parses a string and fills up the phoneNumber. This method is the same as the public
     * parse() method, with the exception that it allows the default region to be null, for use by
     * isNumberMatch(). checkRegion should be set to false if it is permitted for the default region
     * to be null or unknown ("ZZ").
     * @param string $numberToParse
     * @param string $defaultRegion
     * @param bool $keepRawInput
     * @param bool $checkRegion
     * @param PhoneNumber $phoneNumber
     * @throws NumberParseException
     */
    private function parseHelper($numberToParse, $defaultRegion, $keepRawInput, $checkRegion, PhoneNumber $phoneNumber)
    {
        if ($numberToParse === null) {
            throw new NumberParseException(NumberParseException::NOT_A_NUMBER, "The phone number supplied was null.");
        }
        $numberToParse = trim($numberToParse);
        if (mb_strlen($numberToParse) > self::MAX_INPUT_STRING_LENGTH) {
            throw new NumberParseException(
                NumberParseException::TOO_LONG,
                "The string supplied was too long to parse."
            );
        }
        $nationalNumber = '';
        $this->buildNationalNumberForParsing($numberToParse, $nationalNumber);
        if (!$this->isViablePhoneNumber($nationalNumber)) {
            throw new NumberParseException(
                NumberParseException::NOT_A_NUMBER,
                "The string supplied did not seem to be a phone number."
            );
        }
        // Check the region supplied is valid, or that the extracted number starts with some sort of +
        // sign so the number's region can be determined.
        if ($checkRegion && !$this->checkRegionForParsing($nationalNumber, $defaultRegion)) {
            throw new NumberParseException(
                NumberParseException::INVALID_COUNTRY_CODE,
                "Missing or invalid default region."
            );
        }
        if ($keepRawInput) {
            $phoneNumber->setRawInput($numberToParse);
        }
        // Attempt to parse extension first, since it doesn't require region-specific data and we want
        // to have the non-normalised number here.
        $extension = $this->maybeStripExtension($nationalNumber);
        if (mb_strlen($extension) > 0) {
            $phoneNumber->setExtension($extension);
        }
        $regionMetadata = $this->getMetadataForRegion($defaultRegion);
        // Check to see if the number is given in international format so we know whether this number is
        // from the default region or not.
        $normalizedNationalNumber = "";
        try {
            // TODO: This method should really just take in the string buffer that has already
            // been created, and just remove the prefix, rather than taking in a string and then
            // outputting a string buffer.
            $countryCode = $this->maybeExtractCountryCode(
                $nationalNumber,
                $regionMetadata,
                $normalizedNationalNumber,
                $keepRawInput,
                $phoneNumber
            );
        } catch (NumberParseException $e) {
            $matcher = new Matcher(self::$PLUS_CHARS_PATTERN, $nationalNumber);
            if ($e->getErrorType() == NumberParseException::INVALID_COUNTRY_CODE && $matcher->lookingAt()) {
                // Strip the plus-char, and try again.
                $countryCode = $this->maybeExtractCountryCode(
                    substr($nationalNumber, $matcher->end()),
                    $regionMetadata,
                    $normalizedNationalNumber,
                    $keepRawInput,
                    $phoneNumber
                );
                if ($countryCode == 0) {
                    throw new NumberParseException(
                        NumberParseException::INVALID_COUNTRY_CODE,
                        "Could not interpret numbers after plus-sign."
                    );
                }
            } else {
                throw new NumberParseException($e->getErrorType(), $e->getMessage(), $e);
            }
        }
        if ($countryCode !== 0) {
            $phoneNumberRegion = $this->getRegionCodeForCountryCode($countryCode);
            if ($phoneNumberRegion != $defaultRegion) {
                // Metadata cannot be null because the country calling code is valid.
                $regionMetadata = $this->getMetadataForRegionOrCallingCode($countryCode, $phoneNumberRegion);
            }
        } else {
            // If no extracted country calling code, use the region supplied instead. The national number
            // is just the normalized version of the number we were given to parse.
            $normalizedNationalNumber .= $this->normalize($nationalNumber);
            if ($defaultRegion !== null) {
                $countryCode = $regionMetadata->getCountryCode();
                $phoneNumber->setCountryCode($countryCode);
            } else if ($keepRawInput) {
                $phoneNumber->clearCountryCodeSource();
            }
        }
        if (mb_strlen($normalizedNationalNumber) < self::MIN_LENGTH_FOR_NSN) {
            throw new NumberParseException(
                NumberParseException::TOO_SHORT_NSN,
                "The string supplied is too short to be a phone number."
            );
        }
        if ($regionMetadata !== null) {
            $carrierCode = "";
            $potentialNationalNumber = $normalizedNationalNumber;
            $this->maybeStripNationalPrefixAndCarrierCode($potentialNationalNumber, $regionMetadata, $carrierCode);
            // We require that the NSN remaining after stripping the national prefix and carrier code be
            // of a possible length for the region. Otherwise, we don't do the stripping, since the
            // original number could be a valid short number.
            if (!$this->isShorterThanPossibleNormalNumber($regionMetadata, $potentialNationalNumber)) {
                $normalizedNationalNumber = $potentialNationalNumber;
                if ($keepRawInput) {
                    $phoneNumber->setPreferredDomesticCarrierCode($carrierCode);
                }
            }
        }
        $lengthOfNationalNumber = mb_strlen($normalizedNationalNumber);
        if ($lengthOfNationalNumber < self::MIN_LENGTH_FOR_NSN) {
            throw new NumberParseException(
                NumberParseException::TOO_SHORT_NSN,
                "The string supplied is too short to be a phone number."
            );
        }
        if ($lengthOfNationalNumber > self::MAX_LENGTH_FOR_NSN) {
            throw new NumberParseException(
                NumberParseException::TOO_LONG,
                "The string supplied is too long to be a phone number."
            );
        }
        $this->setItalianLeadingZerosForPhoneNumber($normalizedNationalNumber, $phoneNumber);
        /*
         * We have to store the National Number as a string instead of a "long" as Google do
         *
         * Since PHP doesn't always support 64 bit INTs, this was a float, but that had issues
         * with long numbers.
         *
         * We have to remove the leading zeroes ourself though
         */
        if ((int)$normalizedNationalNumber == 0) {
            $normalizedNationalNumber = "0";
        } else {
            $normalizedNationalNumber = ltrim($normalizedNationalNumber, '0');
        }
        $phoneNumber->setNationalNumber($normalizedNationalNumber);
    }
    /**
     * Converts numberToParse to a form that we can parse and write it to nationalNumber if it is
     * written in RFC3966; otherwise extract a possible number out of it and write to nationalNumber.
     * @param string $numberToParse
     * @param string $nationalNumber
     */
    private function buildNationalNumberForParsing($numberToParse, &$nationalNumber)
    {
        $indexOfPhoneContext = strpos($numberToParse, self::RFC3966_PHONE_CONTEXT);
        if ($indexOfPhoneContext > 0) {
            $phoneContextStart = $indexOfPhoneContext + mb_strlen(self::RFC3966_PHONE_CONTEXT);
            // If the phone context contains a phone number prefix, we need to capture it, whereas domains
            // will be ignored.
            if (substr($numberToParse, $phoneContextStart, 1) == self::PLUS_SIGN) {
                // Additional parameters might follow the phone context. If so, we will remove them here
                // because the parameters after phone context are not important for parsing the
                // phone number.
                $phoneContextEnd = strpos($numberToParse, ';', $phoneContextStart);
                if ($phoneContextEnd > 0) {
                    $nationalNumber .= substr($numberToParse, $phoneContextStart, $phoneContextEnd - $phoneContextStart);
                } else {
                    $nationalNumber .= substr($numberToParse, $phoneContextStart);
                }
            }
            // Now append everything between the "tel:" prefix and the phone-context. This should include
            // the national number, an optional extension or isdn-subaddress component. Note we also
            // handle the case when "tel:" is missing, as we have seen in some of the phone number inputs.
            // In that case, we append everything from the beginning.
            $indexOfRfc3966Prefix = strpos($numberToParse, self::RFC3966_PREFIX);
            $indexOfNationalNumber = ($indexOfRfc3966Prefix !== false) ? $indexOfRfc3966Prefix + strlen(self::RFC3966_PREFIX) : 0;
            $nationalNumber .= substr($numberToParse, $indexOfNationalNumber, ($indexOfPhoneContext - $indexOfNationalNumber));
        } else {
            // Extract a possible number from the string passed in (this strips leading characters that
            // could not be the start of a phone number.)
            $nationalNumber .= $this->extractPossibleNumber($numberToParse);
        }
        // Delete the isdn-subaddress and everything after it if it is present. Note extension won't
        // appear at the same time with isdn-subaddress according to paragraph 5.3 of the RFC3966 spec,
        $indexOfIsdn = strpos($nationalNumber, self::RFC3966_ISDN_SUBADDRESS);
        if ($indexOfIsdn > 0) {
            $nationalNumber = substr($nationalNumber, 0, $indexOfIsdn);
        }
        // If both phone context and isdn-subaddress are absent but other parameters are present, the
        // parameters are left in nationalNumber. This is because we are concerned about deleting
        // content from a potential number string when there is no strong evidence that the number is
        // actually written in RFC3966.
    }
    /**
     * Attempts to extract a possible number from the string passed in. This currently strips all
     * leading characters that cannot be used to start a phone number. Characters that can be used to
     * start a phone number are defined in the VALID_START_CHAR_PATTERN. If none of these characters
     * are found in the number passed in, an empty string is returned. This function also attempts to
     * strip off any alternative extensions or endings if two or more are present, such as in the case
     * of: (530) 583-6985 x302/x2303. The second extension here makes this actually two phone numbers,
     * (530) 583-6985 x302 and (530) 583-6985 x2303. We remove the second extension so that the first
     * number is parsed correctly.
     *
     * @param int $number the string that might contain a phone number
     * @return string the number, stripped of any non-phone-number prefix (such as "Tel:") or an empty
     *                string if no character used to start phone numbers (such as + or any digit) is
     *                found in the number
     */
    public static function extractPossibleNumber($number)
    {
        $matches = array();
        $match = preg_match('/' . self::$VALID_START_CHAR_PATTERN . '/ui', $number, $matches, PREG_OFFSET_CAPTURE);
        if ($match > 0) {
            $number = substr($number, $matches[0][1]);
            // Remove trailing non-alpha non-numerical characters.
            $trailingCharsMatcher = new Matcher(self::$UNWANTED_END_CHAR_PATTERN, $number);
            if ($trailingCharsMatcher->find() && $trailingCharsMatcher->start() > 0) {
                $number = substr($number, 0, $trailingCharsMatcher->start());
            }
            // Check for extra numbers at the end.
            $match = preg_match('%' . self::$SECOND_NUMBER_START_PATTERN . '%', $number, $matches, PREG_OFFSET_CAPTURE);
            if ($match > 0) {
                $number = substr($number, 0, $matches[0][1]);
            }
            return $number;
        } else {
            return "";
        }
    }
    /**
     * Checks to see that the region code used is valid, or if it is not valid, that the number to
     * parse starts with a + symbol so that we can attempt to infer the region from the number.
     * Returns false if it cannot use the region provided and the region cannot be inferred.
     * @param string $numberToParse
     * @param string $defaultRegion
     * @return bool
     */
    private function checkRegionForParsing($numberToParse, $defaultRegion)
    {
        if (!$this->isValidRegionCode($defaultRegion)) {
            // If the number is null or empty, we can't infer the region.
            $plusCharsPatternMatcher = new Matcher(self::$PLUS_CHARS_PATTERN, $numberToParse);
            if ($numberToParse === null || mb_strlen($numberToParse) == 0 || !$plusCharsPatternMatcher->lookingAt()) {
                return false;
            }
        }
        return true;
    }
    /**
     * Tries to extract a country calling code from a number. This method will return zero if no
     * country calling code is considered to be present. Country calling codes are extracted in the
     * following ways:
     * Use {@link #formatNationalNumberWithCarrierCode} instead if the carrier code passed in * should take precedence over the number's {@code preferredDomesticCarrierCode} when formatting. * * @param PhoneNumber $number the phone number to be formatted * @param string $fallbackCarrierCode the carrier selection code to be used, if none is found in the * phone number itself * @return string the formatted phone number in national format for dialing using the number's * {@code preferredDomesticCarrierCode}, or the {@code fallbackCarrierCode} passed in if * none is found */ public function formatNationalNumberWithPreferredCarrierCode(PhoneNumber $number, $fallbackCarrierCode) { return $this->formatNationalNumberWithCarrierCode( $number, $number->hasPreferredDomesticCarrierCode() ? $number->getPreferredDomesticCarrierCode() : $fallbackCarrierCode ); } /** * Returns true if the number can be dialled from outside the region, or unknown. If the number * can only be dialled from within the region, returns false. Does not check the number is a valid * number. * TODO: Make this method public when we have enough metadata to make it worthwhile. * * @param PhoneNumber $number the phone-number for which we want to know whether it is diallable from outside the region * @return bool */ public function canBeInternationallyDialled(PhoneNumber $number) { $metadata = $this->getMetadataForRegion($this->getRegionCodeForNumber($number)); if ($metadata === null) { // Note numbers belonging to non-geographical entities (e.g. +800 numbers) are always // internationally diallable, and will be caught here. return true; } $nationalSignificantNumber = $this->getNationalSignificantNumber($number); return !$this->isNumberMatchingDesc($nationalSignificantNumber, $metadata->getNoInternationalDialling()); } /** * Normalizes a string of characters representing a phone number. This strips all characters which * are not diallable on a mobile phone keypad (including all non-ASCII digits). * * @param string $number a string of characters representing a phone number * @return string the normalized string version of the phone number */ public static function normalizeDiallableCharsOnly($number) { return self::normalizeHelper($number, self::$DIALLABLE_CHAR_MAPPINGS, true /* remove non matches */); } /** * Formats a phone number for out-of-country dialing purposes. * * Note that in this version, if the number was entered originally using alpha characters and * this version of the number is stored in raw_input, this representation of the number will be * used rather than the digit representation. Grouping information, as specified by characters * such as "-" and " ", will be retained. * *
Caveats:
*If the number itself has a country calling code of zero or an otherwise invalid country * calling code, then we return the number with no formatting applied. * *
Note this function takes care of the case for calling inside of NANPA and between Russia and * Kazakhstan (who share the same country calling code). In those cases, no international prefix * is used. For regions which have multiple international prefixes, the number in its * INTERNATIONAL format will be returned instead. * * @param PhoneNumber $number the phone number to be formatted * @param string $regionCallingFrom the region where the call is being placed * @return string the formatted phone number */ public function formatOutOfCountryCallingNumber(PhoneNumber $number, $regionCallingFrom) { if (!$this->isValidRegionCode($regionCallingFrom)) { return $this->format($number, PhoneNumberFormat::INTERNATIONAL); } $countryCallingCode = $number->getCountryCode(); $nationalSignificantNumber = $this->getNationalSignificantNumber($number); if (!$this->hasValidCountryCallingCode($countryCallingCode)) { return $nationalSignificantNumber; } if ($countryCallingCode == self::NANPA_COUNTRY_CODE) { if ($this->isNANPACountry($regionCallingFrom)) { // For NANPA regions, return the national format for these regions but prefix it with the // country calling code. return $countryCallingCode . " " . $this->format($number, PhoneNumberFormat::NATIONAL); } } else if ($countryCallingCode == $this->getCountryCodeForValidRegion($regionCallingFrom)) { // If regions share a country calling code, the country calling code need not be dialled. // This also applies when dialling within a region, so this if clause covers both these cases. // Technically this is the case for dialling from La Reunion to other overseas departments of // France (French Guiana, Martinique, Guadeloupe), but not vice versa - so we don't cover this // edge case for now and for those cases return the version including country calling code. // Details here: http://www.petitfute.com/voyage/225-info-pratiques-reunion return $this->format($number, PhoneNumberFormat::NATIONAL); } // Metadata cannot be null because we checked 'isValidRegionCode()' above. $metadataForRegionCallingFrom = $this->getMetadataForRegion($regionCallingFrom); $internationalPrefix = $metadataForRegionCallingFrom->getInternationalPrefix(); // For regions that have multiple international prefixes, the international format of the // number is returned, unless there is a preferred international prefix. $internationalPrefixForFormatting = ""; $uniqueInternationalPrefixMatcher = new Matcher(self::UNIQUE_INTERNATIONAL_PREFIX, $internationalPrefix); if ($uniqueInternationalPrefixMatcher->matches()) { $internationalPrefixForFormatting = $internationalPrefix; } else if ($metadataForRegionCallingFrom->hasPreferredInternationalPrefix()) { $internationalPrefixForFormatting = $metadataForRegionCallingFrom->getPreferredInternationalPrefix(); } $regionCode = $this->getRegionCodeForCountryCode($countryCallingCode); // Metadata cannot be null because the country calling code is valid. $metadataForRegion = $this->getMetadataForRegionOrCallingCode($countryCallingCode, $regionCode); $formattedNationalNumber = $this->formatNsn( $nationalSignificantNumber, $metadataForRegion, PhoneNumberFormat::INTERNATIONAL ); $formattedNumber = $formattedNationalNumber; $this->maybeAppendFormattedExtension( $number, $metadataForRegion, PhoneNumberFormat::INTERNATIONAL, $formattedNumber ); if (mb_strlen($internationalPrefixForFormatting) > 0) { $formattedNumber = $internationalPrefixForFormatting . " " . $countryCallingCode . " " . $formattedNumber; } else { $this->prefixNumberWithCountryCallingCode( $countryCallingCode, PhoneNumberFormat::INTERNATIONAL, $formattedNumber ); } return $formattedNumber; } /** * Checks if this is a region under the North American Numbering Plan Administration (NANPA). * @param string $regionCode * @return boolean true if regionCode is one of the regions under NANPA */ public function isNANPACountry($regionCode) { return in_array($regionCode, $this->nanpaRegions); } /** * Formats a phone number using the original phone number format that the number is parsed from. * The original format is embedded in the country_code_source field of the PhoneNumber object * passed in. If such information is missing, the number will be formatted into the NATIONAL * format by default. When the number contains a leading zero and this is unexpected for this * country, or we don't have a formatting pattern for the number, the method returns the raw input * when it is available. * * Note this method guarantees no digit will be inserted, removed or modified as a result of * formatting. * * @param PhoneNumber $number the phone number that needs to be formatted in its original number format * @param string $regionCallingFrom the region whose IDD needs to be prefixed if the original number * has one * @return string the formatted phone number in its original number format */ public function formatInOriginalFormat(PhoneNumber $number, $regionCallingFrom) { if ($number->hasRawInput() && ($this->hasUnexpectedItalianLeadingZero($number) || !$this->hasFormattingPatternForNumber($number)) ) { // We check if we have the formatting pattern because without that, we might format the number // as a group without national prefix. return $number->getRawInput(); } if (!$number->hasCountryCodeSource()) { return $this->format($number, PhoneNumberFormat::NATIONAL); } switch ($number->getCountryCodeSource()) { case CountryCodeSource::FROM_NUMBER_WITH_PLUS_SIGN: $formattedNumber = $this->format($number, PhoneNumberFormat::INTERNATIONAL); break; case CountryCodeSource::FROM_NUMBER_WITH_IDD: $formattedNumber = $this->formatOutOfCountryCallingNumber($number, $regionCallingFrom); break; case CountryCodeSource::FROM_NUMBER_WITHOUT_PLUS_SIGN: $formattedNumber = substr($this->format($number, PhoneNumberFormat::INTERNATIONAL), 1); break; case CountryCodeSource::FROM_DEFAULT_COUNTRY: // Fall-through to default case. default: $regionCode = $this->getRegionCodeForCountryCode($number->getCountryCode()); // We strip non-digits from the NDD here, and from the raw input later, so that we can // compare them easily. $nationalPrefix = $this->getNddPrefixForRegion($regionCode, true /* strip non-digits */); $nationalFormat = $this->format($number, PhoneNumberFormat::NATIONAL); if ($nationalPrefix === null || mb_strlen($nationalPrefix) == 0) { // If the region doesn't have a national prefix at all, we can safely return the national // format without worrying about a national prefix being added. $formattedNumber = $nationalFormat; break; } // Otherwise, we check if the original number was entered with a national prefix. if ($this->rawInputContainsNationalPrefix( $number->getRawInput(), $nationalPrefix, $regionCode ) ) { // If so, we can safely return the national format. $formattedNumber = $nationalFormat; break; } // Metadata cannot be null here because getNddPrefixForRegion() (above) returns null if // there is no metadata for the region. $metadata = $this->getMetadataForRegion($regionCode); $nationalNumber = $this->getNationalSignificantNumber($number); $formatRule = $this->chooseFormattingPatternForNumber($metadata->numberFormats(), $nationalNumber); // The format rule could still be null here if the national number was 0 and there was no // raw input (this should not be possible for numbers generated by the phonenumber library // as they would also not have a country calling code and we would have exited earlier). if ($formatRule === null) { $formattedNumber = $nationalFormat; break; } // When the format we apply to this number doesn't contain national prefix, we can just // return the national format. // TODO: Refactor the code below with the code in isNationalPrefixPresentIfRequired. $candidateNationalPrefixRule = $formatRule->getNationalPrefixFormattingRule(); // We assume that the first-group symbol will never be _before_ the national prefix. $indexOfFirstGroup = strpos($candidateNationalPrefixRule, '$1'); if ($indexOfFirstGroup <= 0) { $formattedNumber = $nationalFormat; break; } $candidateNationalPrefixRule = substr($candidateNationalPrefixRule, 0, $indexOfFirstGroup); $candidateNationalPrefixRule = $this->normalizeDigitsOnly($candidateNationalPrefixRule); if (mb_strlen($candidateNationalPrefixRule) == 0) { // National prefix not used when formatting this number. $formattedNumber = $nationalFormat; break; } // Otherwise, we need to remove the national prefix from our output. $numFormatCopy = new NumberFormat(); $numFormatCopy->mergeFrom($formatRule); $numFormatCopy->clearNationalPrefixFormattingRule(); $numberFormats = array(); $numberFormats[] = $numFormatCopy; $formattedNumber = $this->formatByPattern($number, PhoneNumberFormat::NATIONAL, $numberFormats); break; } $rawInput = $number->getRawInput(); // If no digit is inserted/removed/modified as a result of our formatting, we return the // formatted phone number; otherwise we return the raw input the user entered. if ($formattedNumber !== null && mb_strlen($rawInput) > 0) { $normalizedFormattedNumber = $this->normalizeDiallableCharsOnly($formattedNumber); $normalizedRawInput = $this->normalizeDiallableCharsOnly($rawInput); if ($normalizedFormattedNumber != $normalizedRawInput) { $formattedNumber = $rawInput; } } return $formattedNumber; } /** * Returns true if a number is from a region whose national significant number couldn't contain a * leading zero, but has the italian_leading_zero field set to true. * @param PhoneNumber $number * @return bool */ private function hasUnexpectedItalianLeadingZero(PhoneNumber $number) { return $number->isItalianLeadingZero() && !$this->isLeadingZeroPossible($number->getCountryCode()); } /** * Checks whether the country calling code is from a region whose national significant number * could contain a leading zero. An example of such a region is Italy. Returns false if no * metadata for the country is found. * @param int $countryCallingCode * @return bool */ public function isLeadingZeroPossible($countryCallingCode) { $mainMetadataForCallingCode = $this->getMetadataForRegionOrCallingCode( $countryCallingCode, $this->getRegionCodeForCountryCode($countryCallingCode) ); if ($mainMetadataForCallingCode === null) { return false; } return (bool)$mainMetadataForCallingCode->isLeadingZeroPossible(); } /** * @param PhoneNumber $number * @return bool */ private function hasFormattingPatternForNumber(PhoneNumber $number) { $countryCallingCode = $number->getCountryCode(); $phoneNumberRegion = $this->getRegionCodeForCountryCode($countryCallingCode); $metadata = $this->getMetadataForRegionOrCallingCode($countryCallingCode, $phoneNumberRegion); if ($metadata === null) { return false; } $nationalNumber = $this->getNationalSignificantNumber($number); $formatRule = $this->chooseFormattingPatternForNumber($metadata->numberFormats(), $nationalNumber); return $formatRule !== null; } /** * Returns the national dialling prefix for a specific region. For example, this would be 1 for * the United States, and 0 for New Zealand. Set stripNonDigits to true to strip symbols like "~" * (which indicates a wait for a dialling tone) from the prefix returned. If no national prefix is * present, we return null. * *
Warning: Do not use this method for do-your-own formatting - for some regions, the * national dialling prefix is used only for certain types of numbers. Use the library's * formatting functions to prefix the national prefix when required. * * @param string $regionCode the region that we want to get the dialling prefix for * @param boolean $stripNonDigits true to strip non-digits from the national dialling prefix * @return string the dialling prefix for the region denoted by regionCode */ public function getNddPrefixForRegion($regionCode, $stripNonDigits) { $metadata = $this->getMetadataForRegion($regionCode); if ($metadata === null) { return null; } $nationalPrefix = $metadata->getNationalPrefix(); // If no national prefix was found, we return null. if (mb_strlen($nationalPrefix) == 0) { return null; } if ($stripNonDigits) { // Note: if any other non-numeric symbols are ever used in national prefixes, these would have // to be removed here as well. $nationalPrefix = str_replace("~", "", $nationalPrefix); } return $nationalPrefix; } /** * Check if rawInput, which is assumed to be in the national format, has a national prefix. The * national prefix is assumed to be in digits-only form. * @param string $rawInput * @param string $nationalPrefix * @param string $regionCode * @return bool */ private function rawInputContainsNationalPrefix($rawInput, $nationalPrefix, $regionCode) { $normalizedNationalNumber = $this->normalizeDigitsOnly($rawInput); if (strpos($normalizedNationalNumber, $nationalPrefix) === 0) { try { // Some Japanese numbers (e.g. 00777123) might be mistaken to contain the national prefix // when written without it (e.g. 0777123) if we just do prefix matching. To tackle that, we // check the validity of the number if the assumed national prefix is removed (777123 won't // be valid in Japan). return $this->isValidNumber( $this->parse(substr($normalizedNationalNumber, mb_strlen($nationalPrefix)), $regionCode) ); } catch (NumberParseException $e) { return false; } } return false; } /** * Tests whether a phone number matches a valid pattern. Note this doesn't verify the number * is actually in use, which is impossible to tell by just looking at a number itself. * * @param PhoneNumber $number the phone number that we want to validate * @return boolean that indicates whether the number is of a valid pattern */ public function isValidNumber(PhoneNumber $number) { $regionCode = $this->getRegionCodeForNumber($number); return $this->isValidNumberForRegion($number, $regionCode); } /** * Tests whether a phone number is valid for a certain region. Note this doesn't verify the number * is actually in use, which is impossible to tell by just looking at a number itself. If the * country calling code is not the same as the country calling code for the region, this * immediately exits with false. After this, the specific number pattern rules for the region are * examined. This is useful for determining for example whether a particular number is valid for * Canada, rather than just a valid NANPA number. * Warning: In most cases, you want to use {@link #isValidNumber} instead. For example, this * method will mark numbers from British Crown dependencies such as the Isle of Man as invalid for * the region "GB" (United Kingdom), since it has its own region code, "IM", which may be * undesirable. * * @param PhoneNumber $number the phone number that we want to validate * @param string $regionCode the region that we want to validate the phone number for * @return boolean that indicates whether the number is of a valid pattern */ public function isValidNumberForRegion(PhoneNumber $number, $regionCode) { $countryCode = $number->getCountryCode(); $metadata = $this->getMetadataForRegionOrCallingCode($countryCode, $regionCode); if (($metadata === null) || (self::REGION_CODE_FOR_NON_GEO_ENTITY !== $regionCode && $countryCode !== $this->getCountryCodeForValidRegion($regionCode)) ) { // Either the region code was invalid, or the country calling code for this number does not // match that of the region code. return false; } $nationalSignificantNumber = $this->getNationalSignificantNumber($number); return $this->getNumberTypeHelper($nationalSignificantNumber, $metadata) != PhoneNumberType::UNKNOWN; } /** * Parses a string and returns it in proto buffer format. This method will throw a * {@link NumberParseException} if the number is not considered to be * a possible number. Note that validation of whether the number is actually a valid number for a * particular region is not performed. This can be done separately with {@link #isValidNumber}. * * @param string $numberToParse number that we are attempting to parse. This can contain formatting * such as +, ( and -, as well as a phone number extension. * @param string $defaultRegion region that we are expecting the number to be from. This is only used * if the number being parsed is not written in international format. * The country_code for the number in this case would be stored as that * of the default region supplied. If the number is guaranteed to * start with a '+' followed by the country calling code, then * "ZZ" or null can be supplied. * @param PhoneNumber|null $phoneNumber * @param bool $keepRawInput * @return PhoneNumber a phone number proto buffer filled with the parsed number * @throws NumberParseException if the string is not considered to be a viable phone number or if * no default region was supplied and the number is not in * international format (does not start with +) */ public function parse($numberToParse, $defaultRegion, PhoneNumber $phoneNumber = null, $keepRawInput = false) { if ($phoneNumber === null) { $phoneNumber = new PhoneNumber(); } $this->parseHelper($numberToParse, $defaultRegion, $keepRawInput, true, $phoneNumber); return $phoneNumber; } /** * Formats a phone number in the specified format using client-defined formatting rules. Note that * if the phone number has a country calling code of zero or an otherwise invalid country calling * code, we cannot work out things like whether there should be a national prefix applied, or how * to format extensions, so we return the national significant number with no formatting applied. * * @param PhoneNumber $number the phone number to be formatted * @param int $numberFormat the format the phone number should be formatted into * @param array $userDefinedFormats formatting rules specified by clients * @return String the formatted phone number */ public function formatByPattern(PhoneNumber $number, $numberFormat, array $userDefinedFormats) { $countryCallingCode = $number->getCountryCode(); $nationalSignificantNumber = $this->getNationalSignificantNumber($number); if (!$this->hasValidCountryCallingCode($countryCallingCode)) { return $nationalSignificantNumber; } // Note getRegionCodeForCountryCode() is used because formatting information for regions which // share a country calling code is contained by only one region for performance reasons. For // example, for NANPA regions it will be contained in the metadata for US. $regionCode = $this->getRegionCodeForCountryCode($countryCallingCode); // Metadata cannot be null because the country calling code is valid $metadata = $this->getMetadataForRegionOrCallingCode($countryCallingCode, $regionCode); $formattedNumber = ""; $formattingPattern = $this->chooseFormattingPatternForNumber($userDefinedFormats, $nationalSignificantNumber); if ($formattingPattern === null) { // If no pattern above is matched, we format the number as a whole. $formattedNumber .= $nationalSignificantNumber; } else { $numFormatCopy = new NumberFormat(); // Before we do a replacement of the national prefix pattern $NP with the national prefix, we // need to copy the rule so that subsequent replacements for different numbers have the // appropriate national prefix. $numFormatCopy->mergeFrom($formattingPattern); $nationalPrefixFormattingRule = $formattingPattern->getNationalPrefixFormattingRule(); if (mb_strlen($nationalPrefixFormattingRule) > 0) { $nationalPrefix = $metadata->getNationalPrefix(); if (mb_strlen($nationalPrefix) > 0) { // Replace $NP with national prefix and $FG with the first group ($1). $npPatternMatcher = new Matcher(self::NP_PATTERN, $nationalPrefixFormattingRule); $nationalPrefixFormattingRule = $npPatternMatcher->replaceFirst($nationalPrefix); $fgPatternMatcher = new Matcher(self::FG_PATTERN, $nationalPrefixFormattingRule); $nationalPrefixFormattingRule = $fgPatternMatcher->replaceFirst("\\$1"); $numFormatCopy->setNationalPrefixFormattingRule($nationalPrefixFormattingRule); } else { // We don't want to have a rule for how to format the national prefix if there isn't one. $numFormatCopy->clearNationalPrefixFormattingRule(); } } $formattedNumber .= $this->formatNsnUsingPattern($nationalSignificantNumber, $numFormatCopy, $numberFormat); } $this->maybeAppendFormattedExtension($number, $metadata, $numberFormat, $formattedNumber); $this->prefixNumberWithCountryCallingCode($countryCallingCode, $numberFormat, $formattedNumber); return $formattedNumber; } /** * Gets a valid number for the specified region. * * @param string regionCode the region for which an example number is needed * @return PhoneNumber a valid fixed-line number for the specified region. Returns null when the metadata * does not contain such information, or the region 001 is passed in. For 001 (representing * non-geographical numbers), call {@link #getExampleNumberForNonGeoEntity} instead. */ public function getExampleNumber($regionCode) { return $this->getExampleNumberForType($regionCode, PhoneNumberType::FIXED_LINE); } /** * Gets a valid number for the specified region and number type. * * @param string $regionCode the region for which an example number is needed * @param int $type the PhoneNumberType of number that is needed * @return PhoneNumber a valid number for the specified region and type. Returns null when the metadata * does not contain such information or if an invalid region or region 001 was entered. * For 001 (representing non-geographical numbers), call * {@link #getExampleNumberForNonGeoEntity} instead. */ public function getExampleNumberForType($regionCode, $type) { // Check the region code is valid. if (!$this->isValidRegionCode($regionCode)) { return null; } $desc = $this->getNumberDescByType($this->getMetadataForRegion($regionCode), $type); try { if ($desc->hasExampleNumber()) { return $this->parse($desc->getExampleNumber(), $regionCode); } } catch (NumberParseException $e) { } return null; } /** * @param PhoneMetadata $metadata * @param int $type PhoneNumberType * @return PhoneNumberDesc */ private function getNumberDescByType(PhoneMetadata $metadata, $type) { switch ($type) { case PhoneNumberType::PREMIUM_RATE: return $metadata->getPremiumRate(); case PhoneNumberType::TOLL_FREE: return $metadata->getTollFree(); case PhoneNumberType::MOBILE: return $metadata->getMobile(); case PhoneNumberType::FIXED_LINE: case PhoneNumberType::FIXED_LINE_OR_MOBILE: return $metadata->getFixedLine(); case PhoneNumberType::SHARED_COST: return $metadata->getSharedCost(); case PhoneNumberType::VOIP: return $metadata->getVoip(); case PhoneNumberType::PERSONAL_NUMBER: return $metadata->getPersonalNumber(); case PhoneNumberType::PAGER: return $metadata->getPager(); case PhoneNumberType::UAN: return $metadata->getUan(); case PhoneNumberType::VOICEMAIL: return $metadata->getVoicemail(); default: return $metadata->getGeneralDesc(); } } /** * Gets a valid number for the specified country calling code for a non-geographical entity. * * @param int $countryCallingCode the country calling code for a non-geographical entity * @return PhoneNumber a valid number for the non-geographical entity. Returns null when the metadata * does not contain such information, or the country calling code passed in does not belong * to a non-geographical entity. */ public function getExampleNumberForNonGeoEntity($countryCallingCode) { $metadata = $this->getMetadataForNonGeographicalRegion($countryCallingCode); if ($metadata !== null) { $desc = $metadata->getGeneralDesc(); try { if ($desc->hasExampleNumber()) { return $this->parse("+" . $countryCallingCode . $desc->getExampleNumber(), "ZZ"); } } catch (NumberParseException $e) { } } return null; } /** * Takes two phone numbers and compares them for equality. * *
Returns EXACT_MATCH if the country_code, NSN, presence of a leading zero * for Italian numbers and any extension present are the same. Returns NSN_MATCH * if either or both has no region specified, and the NSNs and extensions are * the same. Returns SHORT_NSN_MATCH if either or both has no region specified, * or the region specified is the same, and one NSN could be a shorter version * of the other number. This includes the case where one has an extension * specified, and the other does not. Returns NO_MATCH otherwise. For example, * the numbers +1 345 657 1234 and 657 1234 are a SHORT_NSN_MATCH. The numbers * +1 345 657 1234 and 345 657 are a NO_MATCH. * * @param $firstNumberIn PhoneNumber|string First number to compare. If it is a * string it can contain formatting, and can have country calling code specified * with + at the start. * @param $secondNumberIn PhoneNumber|string Second number to compare. If it is a * string it can contain formatting, and can have country calling code specified * with + at the start. * @throws \InvalidArgumentException * @return int {MatchType} NOT_A_NUMBER, NO_MATCH, */ public function isNumberMatch($firstNumberIn, $secondNumberIn) { if (is_string($firstNumberIn) && is_string($secondNumberIn)) { try { $firstNumberAsProto = $this->parse($firstNumberIn, self::UNKNOWN_REGION); return $this->isNumberMatch($firstNumberAsProto, $secondNumberIn); } catch (NumberParseException $e) { if ($e->getErrorType() === NumberParseException::INVALID_COUNTRY_CODE) { try { $secondNumberAsProto = $this->parse($secondNumberIn, self::UNKNOWN_REGION); return $this->isNumberMatch($secondNumberAsProto, $firstNumberIn); } catch (NumberParseException $e2) { if ($e2->getErrorType() === NumberParseException::INVALID_COUNTRY_CODE) { try { $firstNumberProto = new PhoneNumber(); $secondNumberProto = new PhoneNumber(); $this->parseHelper($firstNumberIn, null, false, false, $firstNumberProto); $this->parseHelper($secondNumberIn, null, false, false, $secondNumberProto); return $this->isNumberMatch($firstNumberProto, $secondNumberProto); } catch (NumberParseException $e3) { // Fall through and return MatchType::NOT_A_NUMBER } } } } } return MatchType::NOT_A_NUMBER; } if ($firstNumberIn instanceof PhoneNumber && is_string($secondNumberIn)) { // First see if the second number has an implicit country calling code, by attempting to parse // it. try { $secondNumberAsProto = $this->parse($secondNumberIn, self::UNKNOWN_REGION); return $this->isNumberMatch($firstNumberIn, $secondNumberAsProto); } catch (NumberParseException $e) { if ($e->getErrorType() === NumberParseException::INVALID_COUNTRY_CODE) { // The second number has no country calling code. EXACT_MATCH is no longer possible. // We parse it as if the region was the same as that for the first number, and if // EXACT_MATCH is returned, we replace this with NSN_MATCH. $firstNumberRegion = $this->getRegionCodeForCountryCode($firstNumberIn->getCountryCode()); try { if ($firstNumberRegion != self::UNKNOWN_REGION) { $secondNumberWithFirstNumberRegion = $this->parse($secondNumberIn, $firstNumberRegion); $match = $this->isNumberMatch($firstNumberIn, $secondNumberWithFirstNumberRegion); if ($match === MatchType::EXACT_MATCH) { return MatchType::NSN_MATCH; } return $match; } else { // If the first number didn't have a valid country calling code, then we parse the // second number without one as well. $secondNumberProto = new PhoneNumber(); $this->parseHelper($secondNumberIn, null, false, false, $secondNumberProto); return $this->isNumberMatch($firstNumberIn, $secondNumberProto); } } catch (NumberParseException $e2) { // Fall-through to return NOT_A_NUMBER. } } } } if ($firstNumberIn instanceof PhoneNumber && $secondNumberIn instanceof PhoneNumber) { // Make copies of the phone number so that the numbers passed in are not edited. $firstNumber = new PhoneNumber(); $firstNumber->mergeFrom($firstNumberIn); $secondNumber = new PhoneNumber(); $secondNumber->mergeFrom($secondNumberIn); // First clear raw_input, country_code_source and preferred_domestic_carrier_code fields and any // empty-string extensions so that we can use the proto-buffer equality method. $firstNumber->clearRawInput(); $firstNumber->clearCountryCodeSource(); $firstNumber->clearPreferredDomesticCarrierCode(); $secondNumber->clearRawInput(); $secondNumber->clearCountryCodeSource(); $secondNumber->clearPreferredDomesticCarrierCode(); if ($firstNumber->hasExtension() && mb_strlen($firstNumber->getExtension()) === 0) { $firstNumber->clearExtension(); } if ($secondNumber->hasExtension() && mb_strlen($secondNumber->getExtension()) === 0) { $secondNumber->clearExtension(); } // Early exit if both had extensions and these are different. if ($firstNumber->hasExtension() && $secondNumber->hasExtension() && $firstNumber->getExtension() != $secondNumber->getExtension() ) { return MatchType::NO_MATCH; } $firstNumberCountryCode = $firstNumber->getCountryCode(); $secondNumberCountryCode = $secondNumber->getCountryCode(); // Both had country_code specified. if ($firstNumberCountryCode != 0 && $secondNumberCountryCode != 0) { if ($firstNumber->equals($secondNumber)) { return MatchType::EXACT_MATCH; } elseif ($firstNumberCountryCode == $secondNumberCountryCode && $this->isNationalNumberSuffixOfTheOther($firstNumber, $secondNumber) ) { // A SHORT_NSN_MATCH occurs if there is a difference because of the presence or absence of // an 'Italian leading zero', the presence or absence of an extension, or one NSN being a // shorter variant of the other. return MatchType::SHORT_NSN_MATCH; } // This is not a match. return MatchType::NO_MATCH; } // Checks cases where one or both country_code fields were not specified. To make equality // checks easier, we first set the country_code fields to be equal. $firstNumber->setCountryCode($secondNumberCountryCode); // If all else was the same, then this is an NSN_MATCH. if ($firstNumber->equals($secondNumber)) { return MatchType::NSN_MATCH; } if ($this->isNationalNumberSuffixOfTheOther($firstNumber, $secondNumber)) { return MatchType::SHORT_NSN_MATCH; } return MatchType::NO_MATCH; } return MatchType::NOT_A_NUMBER; } /** * Returns true when one national number is the suffix of the other or both are the same. * @param PhoneNumber $firstNumber * @param PhoneNumber $secondNumber * @return bool */ private function isNationalNumberSuffixOfTheOther(PhoneNumber $firstNumber, PhoneNumber $secondNumber) { $firstNumberNationalNumber = trim((string)$firstNumber->getNationalNumber()); $secondNumberNationalNumber = trim((string)$secondNumber->getNationalNumber()); return $this->stringEndsWithString($firstNumberNationalNumber, $secondNumberNationalNumber) || $this->stringEndsWithString($secondNumberNationalNumber, $firstNumberNationalNumber); } private function stringEndsWithString($hayStack, $needle) { $revNeedle = strrev($needle); $revHayStack = strrev($hayStack); return strpos($revHayStack, $revNeedle) === 0; } /** * Returns true if the supplied region supports mobile number portability. Returns false for * invalid, unknown or regions that don't support mobile number portability. * * @param string $regionCode the region for which we want to know whether it supports mobile number * portability or not. * @return bool */ public function isMobileNumberPortableRegion($regionCode) { $metadata = $this->getMetadataForRegion($regionCode); if ($metadata === null) { return false; } return $metadata->isMobileNumberPortableRegion(); } /** * Check whether a phone number is a possible number given a number in the form of a string, and * the region where the number could be dialed from. It provides a more lenient check than * {@link #isValidNumber}. See {@link #isPossibleNumber(PhoneNumber)} for details. * *
This method first parses the number, then invokes {@link #isPossibleNumber(PhoneNumber)} * with the resultant PhoneNumber object. * * @param PhoneNumber|string $number the number that needs to be checked, in the form of a string * @param string $regionDialingFrom the region that we are expecting the number to be dialed from. * Note this is different from the region where the number belongs. For example, the number * +1 650 253 0000 is a number that belongs to US. When written in this form, it can be * dialed from any region. When it is written as 00 1 650 253 0000, it can be dialed from any * region which uses an international dialling prefix of 00. When it is written as * 650 253 0000, it can only be dialed from within the US, and when written as 253 0000, it * can only be dialed from within a smaller area in the US (Mountain View, CA, to be more * specific). * @return boolean true if the number is possible */ public function isPossibleNumber($number, $regionDialingFrom = null) { if ($regionDialingFrom !== null && is_string($number)) { try { return $this->isPossibleNumberWithReason( $this->parse($number, $regionDialingFrom) ) === ValidationResult::IS_POSSIBLE; } catch (NumberParseException $e) { return false; } } else { return $this->isPossibleNumberWithReason($number) === ValidationResult::IS_POSSIBLE; } } /** * Check whether a phone number is a possible number. It provides a more lenient check than * {@link #isValidNumber} in the following sense: *