1. Go to this page and download the library: Download gobline/registrar 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/ */
gobline / registrar example snippets
$container = new Gobline\Container();
$registrar = new Gobline\Registrar\Registrar($container, 'dev');
$registrar->register(getcwd().'/config/services.php');