1. Go to this page and download the library: Download bigboxwc/wp-template-loader 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/ */
bigboxwc / wp-template-loader example snippets
( new \BigBoxWC\WP_Template_Loader\Loader() )::watch();