PHPackages lloricode/check-digit - PHPackages - PHPackages [Skip to content](#main-content)[PHPackages](/)[Directory](/)[Categories](/categories)[Trending](/trending)[Leaderboard](/leaderboard)[Changelog](/changelog)[Analyze](/analyze)[Collections](/collections)[Log in](/login)[Sign up](/register) 1. [Directory](/) 2. / 3. [Utility & Helpers](/categories/utility) 4. / 5. lloricode/check-digit ActiveLibrary[Utility & Helpers](/categories/utility) lloricode/check-digit ===================== v4.0.0(8mo ago)1105.7k↓45.2%1MITPHPPHP ^8.3CI passing Since Sep 2Pushed 2mo ago1 watchersCompare [ Source](https://github.com/lloricode/check-digit)[ Packagist](https://packagist.org/packages/lloricode/check-digit)[ Docs](https://github.com/lloricode/check-digit)[ Fund](https://www.paypal.me/lloricode)[ Patreon](https://www.patreon.com/lloricode)[ RSS](/packages/lloricode-check-digit/feed)WikiDiscussions main Synced 1mo ago READMEChangelog (10)Dependencies (6)Versions (15)Used By (1) Check Digit =========== [](#check-digit) [![Latest Version on Packagist](https://camo.githubusercontent.com/25c6a13fe5abec53f61283e55b2652aca28bbb9972fb3e24eb39efbd3e1e5f28/68747470733a2f2f696d672e736869656c64732e696f2f7061636b61676973742f762f6c6c6f7269636f64652f636865636b2d64696769742e7376673f7374796c653d666c61742d737175617265)](https://packagist.org/packages/lloricode/check-digit)[![Tests](https://github.com/lloricode/check-digit/actions/workflows/run-tests.yml/badge.svg)](https://github.com/lloricode/check-digit/actions/workflows/run-tests.yml)[![Total Downloads](https://camo.githubusercontent.com/fe693bc1cb159851d2c5c2252b26107429ce99a6a43787e8fb41f791986db998/68747470733a2f2f696d672e736869656c64732e696f2f7061636b61676973742f64742f6c6c6f7269636f64652f636865636b2d64696769742e7376673f7374796c653d666c61742d737175617265)](https://packagist.org/packages/lloricode/check-digit)[![codecov](https://camo.githubusercontent.com/1dfb322830763842ff8150bdbfcb2ffc3a0c7b818cd2a7aa7649fadcd80c607f/68747470733a2f2f636f6465636f762e696f2f67682f6c6c6f7269636f64652f636865636b2d64696769742f67726170682f62616467652e7376673f746f6b656e3d513731553732364a5349)](https://codecov.io/gh/lloricode/check-digit) Check digit formula base on , and tested by Installation ------------ [](#installation) You can install the package via composer: ``` composer require lloricode/check-digit ``` Usage ----- [](#usage) ``` // Sample usage in testing // tests/Feature/GenerateTest.php use Lloricode\CheckDigit\Enums\Format; use Lloricode\CheckDigit\Generator; # base in https://www.gs1.org/services/check-digit-calculator assertSame(2, Generator::new(9638527, Format::GTIN_8)->getCheckDigit()); assertSame(4, Generator::new(3216549, Format::GTIN_8)->getCheckDigit()); assertSame(2, Generator::new(91739456321, Format::GTIN_12)->getCheckDigit()); assertSame(8, Generator::new(74185245963, Format::GTIN_12)->getCheckDigit()); assertSame(3, Generator::new(629104150021, Format::GTIN_13)->getCheckDigit()); assertSame(6, Generator::new(123456789876, Format::GTIN_13)->getCheckDigit()); assertSame(6, Generator::new(7539514528423, Format::GTIN_14)->getCheckDigit()); assertSame(5, Generator::new(8563251459762, Format::GTIN_14)->getCheckDigit()); assertSame(0, Generator::new(7896541230123456, Format::GSIN)->getCheckDigit()); assertSame(3, Generator::new(7658485040650456, Format::GSIN)->getCheckDigit()); assertSame(6, Generator::new(95135623050123698, Format::SSCC)->getCheckDigit()); assertSame(7, Generator::new(87643802105978513, Format::SSCC)->getCheckDigit()); // get generated value assertSame('876438021059785137', Generator::new(87643802105978513, Format::SSCC)->getValue()); // starts with zero assertSame(7, Generator::new('0012345', Format::GTIN_8)->getCheckDigit()); assertSame(5, Generator::new('00123456789', Format::GTIN_12)->getCheckDigit()); assertSame(5, Generator::new('001234567890', Format::GTIN_13)->getCheckDigit()); assertSame(2, Generator::new('0012345678901', Format::GTIN_14)->getCheckDigit()); assertSame(3, Generator::new('0012345678901234', Format::GSIN)->getCheckDigit()); assertSame(2, Generator::new('00123456789012345', Format::SSCC)->getCheckDigit()); ``` Testing ------- [](#testing) ``` vendor/bin/pest ``` Changelog --------- [](#changelog) Please see [CHANGELOG](CHANGELOG.md) for more information on what has changed recently. Contributing ------------ [](#contributing) Please see [CONTRIBUTING](.github/CONTRIBUTING.md) for details. Security -------- [](#security) If you discover any security related issues, please email instead of using the issue tracker. Credits ------- [](#credits) - [Lloric Mayuga Garcia](https://github.com/lloricode) - [All Contributors](../../contributors) License ------- [](#license) The MIT License (MIT). Please see [License File](LICENSE.md) for more information. ### Health Score 54 — FairBetter than 97% of packages Maintenance75 Regular maintenance activity Popularity33 Limited adoption so far Community13 Small or concentrated contributor base Maturity77 Established project with proven stability Bus Factor1 Top contributor holds 87.6% of commits — single point of failure How is this calculated?**Maintenance (25%)** — Last commit recency, latest release date, and issue-to-star ratio. Uses a 2-year decay window. **Popularity (30%)** — Total and monthly downloads, GitHub stars, and forks. Logarithmic scaling prevents top-heavy scores. **Community (15%)** — Contributors, dependents, forks, watchers, and maintainers. Measures real ecosystem engagement. **Maturity (30%)** — Project age, version count, PHP version support, and release stability. ### Release Activity Cadence Every ~152 days Recently: every ~253 days Total 13 Last Release 261d ago Major Versions v1.1.0 → v2.0.02022-11-24 v2.1.0 → v3.0.02023-10-09 v3.0.1 → v4.0.02025-08-31 PHP version history (5 changes)v1.0.0PHP ^7.4 v1.0.5PHP ^7.4|^8.0 v1.1.0PHP ^8.0 v2.0.0PHP ^8.1 v4.0.0PHP ^8.3 ### Community Maintainers ![](https://www.gravatar.com/avatar/1cdb70b3c1af4426f87d055490f2337dae57cb3bd884b013c5c068f8ee24fab1?d=identicon)[lloricode](/maintainers/lloricode) --- Top Contributors [![lloricode](https://avatars.githubusercontent.com/u/8251344?v=4)](https://github.com/lloricode "lloricode (113 commits)")[![dependabot[bot]](https://avatars.githubusercontent.com/in/29110?v=4)](https://github.com/dependabot[bot] "dependabot[bot] (14 commits)")[![bernardofm](https://avatars.githubusercontent.com/u/26308295?v=4)](https://github.com/bernardofm "bernardofm (2 commits)") --- Tags calculatorcheck-digithacktoberfestphplloricodecheck-digit ### Code Quality TestsPest Static AnalysisPHPStan, Rector Code StyleLaravel Pint Type Coverage Yes ### Embed Badge ![Health badge](/badges/lloricode-check-digit/health.svg) ``` [![Health](https://phpackages.com/badges/lloricode-check-digit/health.svg)](https://phpackages.com/packages/lloricode-check-digit) ``` ### Alternatives [hyperf/crontab A crontab component for Hyperf. 131.6M62](/packages/hyperf-crontab) PHPackages © 2026 [Directory](/)[Categories](/categories)[Trending](/trending)[Changelog](/changelog)[Analyze](/analyze)