1. Go to this page and download the library: Download nicebooks/isbn library. Choose the download type require.
2. Extract the ZIP file and open the index.php.
3. Add this code to the index.php.
<?php
require_once('vendor/autoload.php');
/* Start to develop here. Best regards https://php-download.com/ */
nicebooks / isbn example snippets
use Nicebooks\Isbn\Isbn;
$isbn = Isbn::of('123456789X'); // will return an instance of Isbn10
$isbn = Isbn::of('9781234567897'); // will return an instance of Isbn13
Isbn10::of('123456789X'); // equivalent to Isbn::of('123456789X')->to10();
Isbn13::of('9781234567897'); // equivalent to Isbn::of('9781234567897')->to13();