ShortNumberInfo::getExpectedCost() - Code Metrics - Inspection of "Merge pull request #238 from giggsey/upstream-8.9...." - giggsey/libphonenumber-for-php - Measure and Improve Code Quality continuously with Scrutinizer

Passed
Push — master ( 1fe033...85608f )

by Joshua
created 2018-03-14 17:00 UTC
ShortNumberInfo::getExpectedCost() D

↳ Parent: ShortNumberInfo
Complexity

Conditions	9
Paths	9
Size

Total Lines	31
Code Lines	21
Duplication

Lines	0
Ratio	0 %
Code Coverage

Tests	3
CRAP Score	9
Importance

Changes
Metric	Value
cc	9
eloc	21
nc	9
nop	1
dl	0
loc	31
ccs	3
cts	3
cp	1
crap	9
rs	4.909
c	0
b	0
f	0
<?php
/**
 * Methods for getting information about short phone numbers, such as short codes and emergency
 * numbers. Note that most commercial short numbers are not handled here, but by the
 * {@link PhoneNumberUtil}.
 *
 * @author Shaopeng Jia
 * @author David Yonge-Mallo
 * @since 5.8
 */

namespace libphonenumber;

class ShortNumberInfo
{
    const META_DATA_FILE_PREFIX = 'ShortNumberMetadata';
    /**
     * @var ShortNumberInfo
     */
    protected static $instance = null;
    /**
     * @var MatcherAPIInterface
     */
    protected $matcherAPI;
    protected $currentFilePrefix;
    protected $regionToMetadataMap = array();
    protected $countryCallingCodeToRegionCodeMap = array();
    protected $countryCodeToNonGeographicalMetadataMap = array();
    protected static $regionsWhereEmergencyNumbersMustBeExact = array(
        'BR',
        'CL',
        'NI',
    );

    protected function __construct(MatcherAPIInterface $matcherAPI)
    {
        $this->matcherAPI = $matcherAPI;

        // TODO: Create ShortNumberInfo for a given map
        $this->countryCallingCodeToRegionCodeMap = CountryCodeToRegionCodeMap::$countryCodeToRegionCodeMap;

        $this->currentFilePrefix = dirname(__FILE__) . '/data/' . static::META_DATA_FILE_PREFIX;

        // Initialise PhoneNumberUtil to make sure regex's are setup correctly
        PhoneNumberUtil::getInstance();
    }

    /**
     * Returns the singleton instance of ShortNumberInfo
     *
     * @return \libphonenumber\ShortNumberInfo
     */
    public static function getInstance()
    {
        if (null === static::$instance) {
            static::$instance = new self(RegexBasedMatcher::create());
        }

        return static::$instance;
    }

    public static function resetInstance()
    {
        static::$instance = null;
    }

    /**
     * Returns a list with teh region codes that match the specific country calling code. For
     * non-geographical country calling codes, the region code 001 is returned. Also, in the case
     * of no region code being found, an empty list is returned.
     *
     * @param int $countryCallingCode
     * @return array
     */
    protected function getRegionCodesForCountryCode($countryCallingCode)
    {
        if (!array_key_exists($countryCallingCode, $this->countryCallingCodeToRegionCodeMap)) {
            $regionCodes = null;
        } else {
            $regionCodes = $this->countryCallingCodeToRegionCodeMap[$countryCallingCode];
        }

        return ($regionCodes === null) ? array() : $regionCodes;
    }

    /**
     * Helper method to check that the country calling code of the number matches the region it's
     * being dialed from.
     * @param PhoneNumber $number
     * @param string $regionDialingFrom
     * @return bool
     */
    protected function regionDialingFromMatchesNumber(PhoneNumber $number, $regionDialingFrom)
    {
        $regionCodes = $this->getRegionCodesForCountryCode($number->getCountryCode());

        return in_array($regionDialingFrom, $regionCodes);
    }

    public function getSupportedRegions()
    {
        return ShortNumbersRegionCodeSet::$shortNumbersRegionCodeSet;
    }

    /**
     * Gets a valid short number for the specified region.
     *
     * @param $regionCode String the region for which an example short number is needed
     * @return string a valid short number for the specified region. Returns an empty string when the
     *      metadata does not contain such information.
     */
    public function getExampleShortNumber($regionCode)
    {
        $phoneMetadata = $this->getMetadataForRegion($regionCode);
        if ($phoneMetadata === null) {
            return "";
        }

        /** @var PhoneNumberDesc $desc */
        $desc = $phoneMetadata->getShortCode();
        if ($desc !== null && $desc->hasExampleNumber()) {
            return $desc->getExampleNumber();
        }
        return "";
    }

    /**
     * @param $regionCode
     * @return PhoneMetadata|null
     */
    public function getMetadataForRegion($regionCode)
    {
        if (!in_array($regionCode, ShortNumbersRegionCodeSet::$shortNumbersRegionCodeSet)) {
            return null;
        }

        if (!isset($this->regionToMetadataMap[$regionCode])) {
            // The regionCode here will be valid and won't be '001', so we don't need to worry about
            // what to pass in for the country calling code.
            $this->loadMetadataFromFile($this->currentFilePrefix, $regionCode, 0);
        }

        return isset($this->regionToMetadataMap[$regionCode]) ? $this->regionToMetadataMap[$regionCode] : null;
    }

    protected function loadMetadataFromFile($filePrefix, $regionCode, $countryCallingCode)
    {
        $isNonGeoRegion = PhoneNumberUtil::REGION_CODE_FOR_NON_GEO_ENTITY === $regionCode;
        $fileName = $filePrefix . '_' . ($isNonGeoRegion ? $countryCallingCode : $regionCode) . '.php';
        if (!is_readable($fileName)) {
            throw new \Exception('missing metadata: ' . $fileName);
        }

        $metadataLoader = new DefaultMetadataLoader();
        $data = $metadataLoader->loadMetadata($fileName);

        $metadata = new PhoneMetadata();
        $metadata->fromArray($data);
        if ($isNonGeoRegion) {
            $this->countryCodeToNonGeographicalMetadataMap[$countryCallingCode] = $metadata;
        } else {
            $this->regionToMetadataMap[$regionCode] = $metadata;
        }
    }

    /**
     *  Gets a valid short number for the specified cost category.
     *
     * @param string $regionCode the region for which an example short number is needed
     * @param int $cost the cost category of number that is needed
     * @return string a valid short number for the specified region and cost category. Returns an empty string
     * when the metadata does not contain such information, or the cost is UNKNOWN_COST.
     */
    public function getExampleShortNumberForCost($regionCode, $cost)
    {
        $phoneMetadata = $this->getMetadataForRegion($regionCode);
        if ($phoneMetadata === null) {
            return "";
        }

        /** @var PhoneNumberDesc $desc */
        $desc = null;
        switch ($cost) {
            case ShortNumberCost::TOLL_FREE:
                $desc = $phoneMetadata->getTollFree();
                break;
            case ShortNumberCost::STANDARD_RATE:
                $desc = $phoneMetadata->getStandardRate();
                break;
            case ShortNumberCost::PREMIUM_RATE:
                $desc = $phoneMetadata->getPremiumRate();
                break;
            default:
                // UNKNOWN_COST numbers are computed by the process of elimination from the other cost categories
                break;
        }

        if ($desc !== null && $desc->hasExampleNumber()) {
            return $desc->getExampleNumber();
        }

        return "";
    }

    /**
     * Returns true if the given number, exactly as dialed, might be used to connect to an emergency
     * service in the given region.
     * <p>
     * This method accepts a string, rather than a PhoneNumber, because it needs to distinguish
     * cases such as "+1 911" and "911", where the former may not connect to an emergency service in
     * all cases but the latter would. This method takes into account cases where the number might
     * contain formatting, or might have additional digits appended (when it is okay to do that in
     * the specified region).
     *
     * @param string $number the phone number to test
     * @param string $regionCode the region where the phone number if being dialled
     * @return boolean whether the number might be used to connect to an emergency service in the given region
     */
    public function connectsToEmergencyNumber($number, $regionCode)
    {
        return $this->matchesEmergencyNumberHelper($number, $regionCode, true /* allows prefix match */);
    }

    /**
     * @param string $number
     * @param string $regionCode
     * @param bool $allowPrefixMatch
     * @return bool
     */
    protected function matchesEmergencyNumberHelper($number, $regionCode, $allowPrefixMatch)
    {
        $number = PhoneNumberUtil::extractPossibleNumber($number);
        $number = PhoneNumberUtil::extractPossibleNumber(/** @scrutinizer ignore-type */ $number);
        $matcher = new Matcher(PhoneNumberUtil::$PLUS_CHARS_PATTERN, $number);
        if ($matcher->lookingAt()) {
            // Returns false if the number starts with a plus sign. We don't believe dialing the country
            // code before emergency numbers (e.g. +1911) works, but later, if that proves to work, we can
            // add additional logic here to handle it.
            return false;
        }

        $metadata = $this->getMetadataForRegion($regionCode);
        if ($metadata === null || !$metadata->hasEmergency()) {
            return false;
        }

        $normalizedNumber = PhoneNumberUtil::normalizeDigitsOnly($number);
        $emergencyDesc = $metadata->getEmergency();

        $allowPrefixMatchForRegion = ($allowPrefixMatch
            && !in_array($regionCode, static::$regionsWhereEmergencyNumbersMustBeExact)
        );

        return $this->matcherAPI->matchNationalNumber($normalizedNumber, $emergencyDesc, $allowPrefixMatchForRegion);
    }

    /**
     * Given a valid short number, determines whether it is carrier-specific (however, nothing is
     * implied about its validity). Carrier-specific numbers may connect to a different end-point, or
     * not connect at all, depending on the user's carrier. If it is important that the number is
     * valid, then its validity must first be checked using {@link #isValidShortNumber} or
     * {@link #isValidShortNumberForRegion}.
     *
     * @param PhoneNumber $number the valid short number to check
     * @return boolean whether the short number is carrier-specific, assuming the input was a valid short
     *     number
     */
    public function isCarrierSpecific(PhoneNumber $number)
    {
        $regionCodes = $this->getRegionCodesForCountryCode($number->getCountryCode());
        $regionCode = $this->getRegionCodeForShortNumberFromRegionList($number, $regionCodes);
        $nationalNumber = $this->getNationalSignificantNumber($number);
        $phoneMetadata = $this->getMetadataForRegion($regionCode);

        return ($phoneMetadata !== null) && ($this->matchesPossibleNumberAndNationalNumber(
            $nationalNumber,
            $phoneMetadata->getCarrierSpecific()
        ));
    }

    /**
     * Given a valid short number, determines whether it is carrier-specific when dialed from the
     * given region (however, nothing is implied about its validity). Carrier-specific numbers may
     * connect to a different end-point, or not connect at all, depending on the user's carrier. If
     * it is important that the number is valid, then its validity must first be checked using
     * {@link #isValidShortNumber} or {@link #isValidShortNumberForRegion}. Returns false if the
     * number doesn't match the region provided.
     * @param PhoneNumber $number The valid short number to check
     * @param string $regionDialingFrom The region from which the number is dialed
     * @return bool Whether the short number is carrier-specific in the provided region, assuming the
     *      input was a valid short number
     */
    public function isCarrierSpecificForRegion(PhoneNumber $number, $regionDialingFrom)
    {
        if (!$this->regionDialingFromMatchesNumber($number, $regionDialingFrom)) {
            return false;
        }

        $nationalNumber = $this->getNationalSignificantNumber($number);
        $phoneMetadata = $this->getMetadataForRegion($regionDialingFrom);

        return ($phoneMetadata !== null)
            && ($this->matchesPossibleNumberAndNationalNumber($nationalNumber, $phoneMetadata->getCarrierSpecific()));
    }

    /**
     * Given a valid short number, determines whether it is an SMS service (however, nothing is
     * implied about its validity). An SMS service is where the primary or only intended usage is to
     * receive and/or send text messages (SMSs). This includes MMS as MMS numbers downgrade to SMS if
     * the other party isn't MMS-capable. If it is important that the number is valid, then its
     * validity must first be checked using {@link #isValidShortNumber} or {@link
     * #isValidShortNumberForRegion}. Returns false if the number doesn't match the region provided.
     *
     * @param PhoneNumber $number The valid short number to check
     * @param string $regionDialingFrom The region from which the number is dialed
     * @return bool Whether the short number is an SMS service in the provided region, assuming the input
     *  was a valid short number.
     */
    public function isSmsServiceForRegion(PhoneNumber $number, $regionDialingFrom)
    {
        if (!$this->regionDialingFromMatchesNumber($number, $regionDialingFrom)) {
            return false;
        }

        $phoneMetadata = $this->getMetadataForRegion($regionDialingFrom);

        return ($phoneMetadata !== null)
            && $this->matchesPossibleNumberAndNationalNumber(
                $this->getNationalSignificantNumber($number),
                $phoneMetadata->getSmsServices()
            );
    }

    /**
     * Helper method to get the region code for a given phone number, from a list of possible region
     * codes. If the list contains more than one region, the first region for which the number is
     * valid is returned.
     *
     * @param PhoneNumber $number
     * @param $regionCodes
     * @return String|null Region Code (or null if none are found)
     */
    protected function getRegionCodeForShortNumberFromRegionList(PhoneNumber $number, $regionCodes)
    {
        if (count($regionCodes) == 0) {
            return null;
        } elseif (count($regionCodes) == 1) {
            return $regionCodes[0];
        }

        $nationalNumber = $this->getNationalSignificantNumber($number);

        foreach ($regionCodes as $regionCode) {
            $phoneMetadata = $this->getMetadataForRegion($regionCode);
            if ($phoneMetadata !== null
                && $this->matchesPossibleNumberAndNationalNumber($nationalNumber, $phoneMetadata->getShortCode())
            ) {
                // The number is valid for this region.
                return $regionCode;
            }
        }
        return null;
    }

    /**
     * Check whether a short number is a possible number. If a country calling code is shared by
     * multiple regions, this returns true if it's possible in any of them. This provides a more
     * lenient check than {@link #isValidShortNumber}. See {@link
     * #IsPossibleShortNumberForRegion(PhoneNumber, String)} for details.
     *
     * @param $number PhoneNumber the short number to check
     * @return boolean whether the number is a possible short number
     */
    public function isPossibleShortNumber(PhoneNumber $number)
    {
        $regionCodes = $this->getRegionCodesForCountryCode($number->getCountryCode());
        $shortNumberLength = strlen($this->getNationalSignificantNumber($number));

        foreach ($regionCodes as $region) {
            $phoneMetadata = $this->getMetadataForRegion($region);

            if ($phoneMetadata === null) {
                continue;
            }

            if (in_array($shortNumberLength, $phoneMetadata->getGeneralDesc()->getPossibleLength())) {
                return true;
            }
        }

        return false;
    }

    /**
     * Check whether a short number is a possible number when dialled from a region, given the number
     * in the form of a string, and the region where the number is dialled from. This provides a more
     * lenient check than {@link #isValidShortNumber}.
     *
     * @param PhoneNumber $shortNumber The short number to check
     * @param string $regionDialingFrom Region dialing From
     * @return boolean whether the number is a possible short number
     */
    public function isPossibleShortNumberForRegion(PhoneNumber $shortNumber, $regionDialingFrom)
    {
        if (!$this->regionDialingFromMatchesNumber($shortNumber, $regionDialingFrom)) {
            return false;
        }

        $phoneMetadata = $this->getMetadataForRegion($regionDialingFrom);

        if ($phoneMetadata === null) {
            return false;
        }

        $numberLength = strlen($this->getNationalSignificantNumber($shortNumber));
        return in_array($numberLength, $phoneMetadata->getGeneralDesc()->getPossibleLength());
    }

    /**
     * Tests whether a short number matches a valid pattern. If a country calling code is shared by
     * multiple regions, this returns true if it's valid in any of them. Note that this doesn't verify
     * the number is actually in use, which is impossible to tell by just looking at the number
     * itself. See {@link #isValidShortNumberForRegion(PhoneNumber, String)} for details.
     *
     * @param $number PhoneNumber the short number for which we want to test the validity
     * @return boolean whether the short number matches a valid pattern
     */
    public function isValidShortNumber(PhoneNumber $number)
    {
        $regionCodes = $this->getRegionCodesForCountryCode($number->getCountryCode());
        $regionCode = $this->getRegionCodeForShortNumberFromRegionList($number, $regionCodes);
        if (count($regionCodes) > 1 && $regionCode !== null) {
            // If a matching region had been found for the phone number from among two or more regions,
            // then we have already implicitly verified its validity for that region.
            return true;
        }

        return $this->isValidShortNumberForRegion($number, $regionCode);
    }

    /**
     * Tests whether a short number matches a valid pattern in a region. Note that this doesn't verify
     * the number is actually in use, which is impossible to tell by just looking at the number
     * itself.
     *
     * @param PhoneNumber $number The Short number for which we want to test the validity
     * @param string $regionDialingFrom the region from which the number is dialed
     * @return boolean whether the short number matches a valid pattern
     */
    public function isValidShortNumberForRegion(PhoneNumber $number, $regionDialingFrom)
    {
        if (!$this->regionDialingFromMatchesNumber($number, $regionDialingFrom)) {
            return false;
        }
        $phoneMetadata = $this->getMetadataForRegion($regionDialingFrom);

        if ($phoneMetadata === null) {
            return false;
        }

        $shortNumber = $this->getNationalSignificantNumber($number);

        $generalDesc = $phoneMetadata->getGeneralDesc();

        if (!$this->matchesPossibleNumberAndNationalNumber($shortNumber, $generalDesc)) {
            return false;
        }

        $shortNumberDesc = $phoneMetadata->getShortCode();

        return $this->matchesPossibleNumberAndNationalNumber($shortNumber, $shortNumberDesc);
    }

    /**
     * Gets the expected cost category of a short number  when dialled from a region (however, nothing is
     * implied about its validity). If it is important that the number is valid, then its validity
     * must first be checked using {@link isValidShortNumberForRegion}. Note that emergency numbers
     * are always considered toll-free.
     * Example usage:
     * <pre>{@code
     * $shortInfo = ShortNumberInfo::getInstance();
     * $shortNumber = PhoneNumberUtil::parse("110", "US);
     * $regionCode = "FR";
     * if ($shortInfo->isValidShortNumberForRegion($shortNumber, $regionCode)) {
     *     $cost = $shortInfo->getExpectedCostForRegion($shortNumber, $regionCode);
     *    // Do something with the cost information here.
     * }}</pre>
     *
     * @param PhoneNumber $number the short number for which we want to know the expected cost category,
     *     as a string
     * @param string $regionDialingFrom the region from which the number is dialed
     * @return int the expected cost category for that region of the short number. Returns UNKNOWN_COST if
     *     the number does not match a cost category. Note that an invalid number may match any cost
     *     category.
     */
    public function getExpectedCostForRegion(PhoneNumber $number, $regionDialingFrom)
    {
        if (!$this->regionDialingFromMatchesNumber($number, $regionDialingFrom)) {
            return ShortNumberCost::UNKNOWN_COST;
        }
        // Note that regionDialingFrom may be null, in which case phoneMetadata will also be null.
        $phoneMetadata = $this->getMetadataForRegion($regionDialingFrom);
        if ($phoneMetadata === null) {
            return ShortNumberCost::UNKNOWN_COST;
        }

        $shortNumber = $this->getNationalSignificantNumber($number);

        // The possible lengths are not present for a particular sub-type if they match the general
        // description; for this reason, we check the possible lengths against the general description
        // first to allow an early exit if possible.
        if (!in_array(strlen($shortNumber), $phoneMetadata->getGeneralDesc()->getPossibleLength())) {
            return ShortNumberCost::UNKNOWN_COST;
        }

        // The cost categories are tested in order of decreasing expense, since if for some reason the
        // patterns overlap the most expensive matching cost category should be returned.
        if ($this->matchesPossibleNumberAndNationalNumber($shortNumber, $phoneMetadata->getPremiumRate())) {
            return ShortNumberCost::PREMIUM_RATE;
        }

        if ($this->matchesPossibleNumberAndNationalNumber($shortNumber, $phoneMetadata->getStandardRate())) {
            return ShortNumberCost::STANDARD_RATE;
        }

        if ($this->matchesPossibleNumberAndNationalNumber($shortNumber, $phoneMetadata->getTollFree())) {
            return ShortNumberCost::TOLL_FREE;
        }

        if ($this->isEmergencyNumber($shortNumber, $regionDialingFrom)) {
            // Emergency numbers are implicitly toll-free.
            return ShortNumberCost::TOLL_FREE;
        }

        return ShortNumberCost::UNKNOWN_COST;
    }

    /**
     * Gets the expected cost category of a short number (however, nothing is implied about its
     * validity). If the country calling code is unique to a region, this method behaves exactly the
     * same as {@link #getExpectedCostForRegion(PhoneNumber, String)}. However, if the country calling
     * code is shared by multiple regions, then it returns the highest cost in the sequence
     * PREMIUM_RATE, UNKNOWN_COST, STANDARD_RATE, TOLL_FREE. The reason for the position of
     * UNKNOWN_COST in this order is that if a number is UNKNOWN_COST in one region but STANDARD_RATE
     * or TOLL_FREE in another, its expected cost cannot be estimated as one of the latter since it
     * might be a PREMIUM_RATE number.
     *
     * <p>
     * For example, if a number is STANDARD_RATE in the US, but TOLL_FREE in Canada, the expected
     * cost returned by this method will be STANDARD_RATE, since the NANPA countries share the same
     * country calling code.
     * </p>
     *
     * Note: If the region from which the number is dialed is known, it is highly preferable to call
     * {@link #getExpectedCostForRegion(PhoneNumber, String)} instead.
     *
     * @param PhoneNumber $number the short number for which we want to know the expected cost category
     * @return int the highest expected cost category of the short number in the region(s) with the given
     *     country calling code
     */
    public function getExpectedCost(PhoneNumber $number)
    {
        $regionCodes = $this->getRegionCodesForCountryCode($number->getCountryCode());
        if (count($regionCodes) == 0) {
            return ShortNumberCost::UNKNOWN_COST;
        }
        if (count($regionCodes) == 1) {
            return $this->getExpectedCostForRegion($number, $regionCodes[0]);
        }
        $cost = ShortNumberCost::TOLL_FREE;
        foreach ($regionCodes as $regionCode) {
            $costForRegion = $this->getExpectedCostForRegion($number, $regionCode);
            switch ($costForRegion) {
                case ShortNumberCost::PREMIUM_RATE:
                    return ShortNumberCost::PREMIUM_RATE;

                case ShortNumberCost::UNKNOWN_COST:
                    $cost = ShortNumberCost::UNKNOWN_COST;
                    break;

                case ShortNumberCost::STANDARD_RATE:
                    if ($cost != ShortNumberCost::UNKNOWN_COST) {
                        $cost = ShortNumberCost::STANDARD_RATE;
                    }
                    break;
                case ShortNumberCost::TOLL_FREE:
                    // Do nothing
                    break;
            }
        }
        return $cost;
    }

    /**
     * Returns true if the given number exactly matches an emergency service number in the given
     * region.
     * <p>
     * This method takes into account cases where the number might contain formatting, but doesn't
     * allow additional digits to be appended. Note that {@code isEmergencyNumber(number, region)}
     * implies {@code connectsToEmergencyNumber(number, region)}.
     *
     * @param string $number the phone number to test
     * @param string $regionCode the region where the phone number is being dialled
     * @return boolean whether the number exactly matches an emergency services number in the given region
     */
    public function isEmergencyNumber($number, $regionCode)
    {
        return $this->matchesEmergencyNumberHelper($number, $regionCode, false /* doesn't allow prefix match */);
    }

    /**
     * Gets the national significant number of the a phone number. Note a national significant number
     * doesn't contain a national prefix or any formatting.
     * <p>
     * This is a temporary duplicate of the {@code getNationalSignificantNumber} method from
     * {@code PhoneNumberUtil}. Ultimately a canonical static version should exist in a separate
     * utility class (to prevent {@code ShortNumberInfo} needing to depend on PhoneNumberUtil).
     *
     * @param PhoneNumber $number the phone number for which the national significant number is needed
     * @return string the national significant number of the PhoneNumber object passed in
     */
    protected function getNationalSignificantNumber(PhoneNumber $number)
    {
        // If leading zero(s) have been set, we prefix this now. Note this is not a national prefix.
        $nationalNumber = '';
        if ($number->isItalianLeadingZero()) {
            $zeros = str_repeat('0', $number->getNumberOfLeadingZeros());
            $nationalNumber .= $zeros;
        }

        $nationalNumber .= $number->getNationalNumber();

        return $nationalNumber;
    }

    /**
     * TODO: Once we have benchmarked ShortnumberInfo, consider if it is worth keeping
     * this performance optimization.
     * @param string $number
     * @param PhoneNumberDesc $numberDesc
     * @return bool
     */
    protected function matchesPossibleNumberAndNationalNumber($number, PhoneNumberDesc $numberDesc)
    {
        if (count($numberDesc->getPossibleLength()) > 0 && !in_array(strlen($number), $numberDesc->getPossibleLength())) {
            return false;
        }

        return $this->matcherAPI->matchNationalNumber($number, $numberDesc, false);
    }
}

giggsey / libphonenumber-for-php

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ShortNumberInfo::getExpectedCost() D

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