1. Go to this page and download the library: Download userwebdevelop/yii2-rbac 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/ */
use \userwebdevelop\yii2Rbac\traits\ModuleMiddleware;
\userwebdevelop\yii2Rbac\widgets\RBACSidebar::widget([
// urls
['label' => 'Роли', 'icon' => 'users', 'url' => ['/role']], // Также нужно добавить ссылку на роли
]);