samlittler/upc

A checksum calculator for the UPC check digit method

UPC Checksum Calculator

A PHP library for calculating UPC (Universal Product Code) checksum digits., _(*1)

Installation

Download and install this library using composer:, _(*2)

composer require samlittler/upc

Alternatively, download this repository as a ZIP and include the src/UPC.php file in your project., _(*3)

Usage

Usage is simple, _(*4)

$your_product_code = '03600024145';
$checksum = \SamLittler\UPC\UPC::calculate($your_product_code); // returns 7