1. Go to this page and download the library: Download alnv/catalog-manager-bundle 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/ */
alnv / catalog-manager-bundle example snippets
php
<div class="cm-refrence-list block">
foreach ($this->entities as $arrEntity):