1. Go to this page and download the library: Download openlss/lib-config 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 the clone keyword to actually copy the object (this is optional)
$inst = clone Config::_get();
//load up a new temporary config
Config::setConfig($newconfig);
//restore the old config
Config::$inst = clone $inst; unset($inst);