This package provides few functions that calculate EAN13 digits and checksum digit. It does not generate barcode images (and it will stay that way). You can use this package to generate barcode image using calculated value.

It uses https://github.com/ronanguilloux/IsoCodes to validate generated codes. checkdigit function was taken from here: https://edmondscommerce.github.io/php/barcode/ean13-barcode-check-digit-with-php.html

I hope this package helps you.

generate code

use function Newride\EAN13\create;

create('123'); // 0000000001236

generate check digit only

use function Newride\EAN13\checkdigit;

checkdigit('123'); // 6