Elgg-Lorea-Hydra/engine/handlers/cache_handler.php

<?php
/**
 * Cache handler.
 *
 * External access to cached CSS and JavaScript views. The cached file URLS
 * should be of the form: cache/<ts>/<viewtype>/<name/of/view> where
 * ts is an identifier that is updated every time the cache is flushed.
 * The simplest way to maintain a unique identifier is to use the lastcache
 * timestamp in Elgg's config object.
 *
 * @see elgg_register_simplecache_view()
 *
 * @package Elgg.Core
 * @subpackage Cache
 */

// we need to load a few Elgg classes, but this is much lighter than /vendor/autoload.php
spl_autoload_register(function ($class) {
	$file = dirname(__DIR__) . '/classes/' . strtr(ltrim($class, '\\'), '_\\', '//') . '.php';
	is_readable($file) && (require $file);
});

require_once dirname(dirname(__FILE__)) . '/settings.php';
/* @var \stdClass $CONFIG */

// dataroot must have trailing slash
// @todo need a lib with core functions that have no depedencies
if (isset($CONFIG->dataroot)) {
	$CONFIG->dataroot = rtrim($CONFIG->dataroot, DIRECTORY_SEPARATOR) . DIRECTORY_SEPARATOR;
}

$handler = new \Elgg\CacheHandler($CONFIG);

$handler->handleRequest($_GET, $_SERVER);