Real GTIN Validator

A GTIN is a string of digits that uniquely identifies a trade item (a product that is bought and sold). A GTIN is globally unique, meaning that no two products in the world share the same GTIN.

This library provides a straightforward way by which a number can be determined to be a valid GTIN or suspected of being invalid in some way.

Installation

via Composer

$ composer require real-digital/gtin-validator

via GitHub

$ git clone https://github.com/real-digital/gtin-validator.git

Usage

<?php

use Real\Validator\Gtin;

// create a valid GTIN
$value = '4006381333931';
$gtin = Gtin\Factory::create($value);


// handle errors
$value = 'any invalid value';
try {
    $gtin = Gtin\Factory::create($value);
} catch (Gtin\NonNormalizable $e) {
    // ...
}


// check whether GTIN is valid
$value = '4006381333931';
$isValid = Gtin\Factory::isValid($value);

GTIN interface overview

Each created GTIN implements a common interface. This is a complete list of its methods:

Method	Type	Functionality
`checkDigit()`	integer	Retrieve the rightmost digit called the "Check Digit"
`indicator()`	integer	Retrieve the "Indicator" component
`key()`	string	Retrieve GTIN value having a length corresponding to its variation
`length()`	integer	Retrieve length of the variation
`origin()`	string	Retrieve an origin value used for GTIN creation
`padded()`	string	Retrieve key padded to 14 digits
`prefix()`	string	Retrieve GS1 Prefix
`variation()`	string	Retrieve variation name

Testing

$ composer tests

License

Real GTIN Validator is licensed under The Apache License 2.0. Please see LICENSE for details.

Changelog

Please see CHANGELOG for more information.