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PK       ! ŽÜƒž´  ´    Iban.phpnu &1i„        <?php

namespace Faker\Calculator;

class Iban
{
    /**
     * Generates IBAN Checksum
     *
     * @param string $iban
     * @return string Checksum (numeric string)
     */
    public static function checksum($iban)
    {
        // Move first four digits to end and set checksum to '00'
        $checkString = substr($iban, 4) . substr($iban, 0, 2) . '00';

        // Replace all letters with their number equivalents
        $checkString = preg_replace_callback('/[A-Z]/', array('self','alphaToNumberCallback'), $checkString);

        // Perform mod 97 and subtract from 98
        $checksum = 98 - self::mod97($checkString);

        return str_pad($checksum, 2, '0', STR_PAD_LEFT);
    }

    /**
     * @param string $match
     *
     * @return int
     */
    private static function alphaToNumberCallback($match)
    {
        return self::alphaToNumber($match[0]);
    }

    /**
     * Converts letter to number
     *
     * @param string $char
     * @return int
     */
    public static function alphaToNumber($char)
    {
        return ord($char) - 55;
    }

    /**
     * Calculates mod97 on a numeric string
     *
     * @param string $number Numeric string
     * @return int
     */
    public static function mod97($number)
    {
        $checksum = (int)$number[0];
        for ($i = 1, $size = strlen($number); $i < $size; $i++) {
            $checksum = (10 * $checksum + (int) $number[$i]) % 97;
        }
        return $checksum;
    }

    /**
     * Checks whether an IBAN has a valid checksum
     *
     * @param string $iban
     * @return boolean
     */
    public static function isValid($iban)
    {
        return self::checksum($iban) === substr($iban, 2, 2);
    }
}
PK       ! ÿ¯{×`  `    TCNo.phpnu &1i„        <?php

namespace Faker\Calculator;

use InvalidArgumentException;

class TCNo
{
    /**
     * Generates Turkish Identity Number Checksum
     * Gets first 9 digit as prefix and calcuates checksums
     *
     * https://en.wikipedia.org/wiki/Turkish_Identification_Number
     *
     * @param string $identityPrefix
     * @return string Checksum (two digit)
     */
    public static function checksum($identityPrefix)
    {
        if (strlen((string)$identityPrefix) !== 9) {
            throw new InvalidArgumentException('Argument should be an integer and should be 9 digits.');
        }

        $oddSum = 0;
        $evenSum = 0;

        $identityArray = array_map('intval', str_split($identityPrefix)); // Creates array from int
        foreach ($identityArray as $index => $digit) {
            if ($index % 2 == 0) {
                $evenSum += $digit;
            } else {
                $oddSum += $digit;
            }
        }

        $tenthDigit = (7 * $evenSum - $oddSum) % 10;
        $eleventhDigit = ($evenSum + $oddSum + $tenthDigit) % 10;

        return $tenthDigit . $eleventhDigit;
    }

    /**
     * Checks whether an TCNo has a valid checksum
     *
     * @param string $tcNo
     * @return boolean
     */
    public static function isValid($tcNo)
    {
        return self::checksum(substr($tcNo, 0, -2)) === substr($tcNo, -2, 2);
    }
}
PK       ! »œLgã  ã    Luhn.phpnu &1i„        <?php

namespace Faker\Calculator;

use InvalidArgumentException;

/**
 * Utility class for generating and validating Luhn numbers.
 *
 * Luhn algorithm is used to validate credit card numbers, IMEI numbers, and
 * National Provider Identifier numbers.
 *
 * @see http://en.wikipedia.org/wiki/Luhn_algorithm
 */
class Luhn
{
    /**
     * @param string $number
     * @return int
     */
    private static function checksum($number)
    {
        $number = (string) $number;
        $length = strlen($number);
        $sum = 0;
        for ($i = $length - 1; $i >= 0; $i -= 2) {
            $sum += $number{$i};
        }
        for ($i = $length - 2; $i >= 0; $i -= 2) {
            $sum += array_sum(str_split($number{$i} * 2));
        }

        return $sum % 10;
    }

    /**
     * @param $partialNumber
     * @return string
     */
    public static function computeCheckDigit($partialNumber)
    {
        $checkDigit = self::checksum($partialNumber . '0');
        if ($checkDigit === 0) {
            return 0;
        }

        return (string) (10 - $checkDigit);
    }

    /**
     * Checks whether a number (partial number + check digit) is Luhn compliant
     *
     * @param string $number
     * @return bool
     */
    public static function isValid($number)
    {
        return self::checksum($number) === 0;
    }

    /**
     * Generate a Luhn compliant number.
     *
     * @param string $partialValue
     *
     * @return string
     */
    public static function generateLuhnNumber($partialValue)
    {
        if (!preg_match('/^\d+$/', $partialValue)) {
            throw new InvalidArgumentException('Argument should be an integer.');
        }
        return $partialValue . Luhn::computeCheckDigit($partialValue);
    }
}
PK       ! Í9I      Inn.phpnu &1i„        <?php
namespace Faker\Calculator;

class Inn
{
    /**
     * Generates INN Checksum
     *
     * https://ru.wikipedia.org/wiki/%D0%98%D0%B4%D0%B5%D0%BD%D1%82%D0%B8%D1%84%D0%B8%D0%BA%D0%B0%D1%86%D0%B8%D0%BE%D0%BD%D0%BD%D1%8B%D0%B9_%D0%BD%D0%BE%D0%BC%D0%B5%D1%80_%D0%BD%D0%B0%D0%BB%D0%BE%D0%B3%D0%BE%D0%BF%D0%BB%D0%B0%D1%82%D0%B5%D0%BB%D1%8C%D1%89%D0%B8%D0%BA%D0%B0
     *
     * @param string $inn
     * @return string Checksum (one digit)
     */
    public static function checksum($inn)
    {
        $multipliers = array(1 => 2, 2 => 4, 3 => 10, 4 => 3, 5 => 5, 6 => 9, 7 => 4, 8 => 6, 9 => 8);
        $sum = 0;
        for ($i = 1; $i <= 9; $i++) {
            $sum += intval(substr($inn, $i-1, 1)) * $multipliers[$i];
        }
        return strval(($sum % 11) % 10);
    }

    /**
     * Checks whether an INN has a valid checksum
     *
     * @param string $inn
     * @return boolean
     */
    public static function isValid($inn)
    {
        return self::checksum(substr($inn, 0, -1)) === substr($inn, -1, 1);
    }
}
PK         ! ŽÜƒž´  ´                  Iban.phpnu &1i„        PK         ! ÿ¯{×`  `              ì  TCNo.phpnu &1i„        PK         ! »œLgã  ã              „  Luhn.phpnu &1i„        PK         ! Í9I                Ÿ  Inn.phpnu &1i„        PK  