index.php

<?php
/**
 * 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);

$s = empty($_SERVER['HTTPS']) ? '' : ($_SERVER['HTTPS'] == 'on') ? 's' : '';
$port = ($_SERVER['SERVER_PORT'] == '80') ? '' : (":".$_SERVER['SERVER_PORT']);
$url = "http$s://" . $_SERVER['HTTP_HOST'] . $port;
define('WP_HOME', $url);
define('WP_SITEURL', $url);
unset($s, $port, $url);

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