1. Go to this page and download the library: Download blesta/h2o 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/ */
blesta / h2o example snippets
$h2o = new h2o('templates/index.html');
echo $h2o->render(array('name'=>'Peter Jackson'));