Wordpress/Redis

composer.json

{
    "require": {
        "predis/predis": "dev-master"
    }
}

index-with-redis.php

<?php

require 'vendor/autoload.php';

Predis\Autoloader::register();
$client = new Predis\Client();

$set = '';
$key = md5($_SERVER['REQUEST_URI']);

$compoundKey = $set . $key;

if ($data = $client->get($compoundKey)) {
    echo $data;
} else {
    ob_start();
    /**
     * Front to the WordPress application. This file doesn't do anything, but loads
     * wp-blog-header.php which does and tells WordPress to load the theme.
     *
     * @package WordPress
     */

    /**
     * Tells WordPress to load the WordPress theme and output it.
     *
     * @var bool
     */
    define('WP_USE_THEMES', true);

    /** Loads the WordPress Environment and Template */
    require( dirname( __FILE__ ) . '/wp-blog-header.php' );

    $data = ob_get_flush();
    ob_end_clean();

    $client->set($compoundKey, $data);
    $client->expire($compoundKey, 86400);
}

install.sh

sudo apt-get install redis-server