Online PHP editor | rfc for q7tlZ

@ 2024-10-01T23:41:14Z

<?php

class NIP
{
    private const WEIGHTS          = [6, 5, 7, 2, 3, 4, 5, 6, 7];
    private const NIP_MODULO       = 11;
    private const INVALID_CHECKSUM = 10;

    public static function validate(string $nip): bool
    {
        $value = preg_replace('/[\s-]/', '', $nip);

        if ('0000000000' === $value || !preg_match('/^\d{10}$/', $value)) {
            return false;
        }

        $checkSum = self::getChecksum($value);

        if (self::INVALID_CHECKSUM === $checkSum || $checkSum !== ((int) (substr($value, -1)))) {
            return false;
        }

        return true;
    }

    private static function getChecksum(string $nip): int
    {
        $sum = 0;

        foreach (self::WEIGHTS as $key => $weight) {
            $sum += $weight * ((int) $nip[$key]);
        }

        return $sum % self::NIP_MODULO;
    }
}

$nip_numbers = array(
    "1234567890",
    "5366239267",
    "1071206063",
    "1160045242",
    "8123035307",
    "5361869035",
    "9322423343",
    "1191232175",
    "1079704010",
    "1560650337"
);

$c = new NIP();
foreach ($nip_numbers as $a) {
    var_dump($c->validate($a));
}

Output for git.master_jit, git.master: bool(false) bool(true) bool(true) bool(true) bool(true) bool(true) bool(true) bool(true) bool(true) bool(true)

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2020-03-21 RFC: Is_Literal - declined
2020-12-04 Enumerations - included in PHP 8.1
2018-06-15 Typed Properties v2 - implemented in PHP 7.4
2016-08-12 Object typehint - included in PHP 7.2
2016-08-14 Arrow functions - withdrawn
2016-05-29 array_change_keys() - withdrawn
2016-04-19 Lexical scope support for anonymous classes - suspended
2016-04-17 Functional Interfaces - declined
2016-03-16 Typed Properties - superseded in favor of Typed Properties 2.0
2015-08-27 Callable Prototypes - declined
2015-05-01 Short Closures - declined / withdrawn in favor of Arrow Functions
2015-02-18 Scalar type hints v5 - included in PHP 7
2015-02-14 Union Types - declined
2013-09-22 Anonymous classes - included in PHP 7

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