S3Browser::enableCaching PHP Method

    public function enableCaching($dir, $duration)
    {
        $this->cacheDir = $dir;
        $this->cacheDuration = $duration;
    }

<?php

define('ROOT_DIR', dirname(__FILE__));
require ROOT_DIR . '/include/S3Browser.php';
// Load config
$configFile = ROOT_DIR . '/config.php';
if (!file_exists($configFile)) {
    die('config.php is missing. See config-sample.php');
}
$config = (include $configFile);
if (!$config['bucket-name'] || !$config['s3-access-key'] || !$config['s3-secret-key']) {
    die('Please set bucket-name, s3-access-key, and s3-secret-key in' . ' config.php');
}
if (!$config['s3-ssl']) {
    $config['s3-ssl'] = true;
}
if (!$config['s3-endpoint']) {
    $config['s3-endpoint'] = 's3.amazonaws.com';
}
$s3b = new S3Browser($config['bucket-name'], $config['s3-access-key'], $config['s3-secret-key'], $config['s3-ssl'], $config['s3-endpoint']);
$s3b->enableCaching($config['cache-dir'], $config['cache-time']);
// Get current directory from URL
$dir = str_replace($config['base-path'], '', $_SERVER['REQUEST_URI']);
$dir = urldecode($dir);
$files = $s3b->getFiles($dir);
if ($files === null) {
    die('Unable to load bucket: ' . $config['bucket-name']);
}
include ROOT_DIR . '/themes/' . $config['theme'] . '/index.tpl.php';