1. Go to this page and download the library: Download attargah/admin-bar 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/ */
attargah / admin-bar example snippets
use Attargah\AdminBar\AdminBarPlugin;
->plugins([AdminBarPlugin::make()])