samlittler/luhn-mod-16

A PHP library for calculating Luhn Mod 16 checksums as used by Royal Mail and others

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pkg:composer/samlittler/luhn-mod-16

v2.0.0 2022-05-25 09:47 UTC

This package is auto-updated.

Last update: 2025-09-25 17:02:44 UTC


README

A library for calculating Luhn Mod 16 checksums in PHP. Especially useful for those dealing with Royal Mail labels.

Installation

Download with composer by using:

composer require samlittler/luhn-mod-16

Usage

Usage is simple.

$checksum = \LuhnMod16\LuhnMod16::calculate($your_test_value);