WordPress/wp-settings.php

<?php
// Turn register globals off
function unregister_GLOBALS() {
	if ( !ini_get('register_globals') )
		return;

	if ( isset($_REQUEST['GLOBALS']) )
		die('GLOBALS overwrite attempt detected');

	// Variables that shouldn't be unset
	$noUnset = array('GLOBALS', '_GET', '_POST', '_COOKIE', '_REQUEST', '_SERVER', '_ENV', '_FILES', 'table_prefix');
	
	$input = array_merge($_GET, $_POST, $_COOKIE, $_SERVER, $_ENV, $_FILES, isset($_SESSION) && is_array($_SESSION) ? $_SESSION : array());
	foreach ( $input as $k => $v ) 
		if ( !in_array($k, $noUnset) && isset($GLOBALS[$k]) )
			unset($GLOBALS[$k]);
}

unregister_GLOBALS(); 

$HTTP_USER_AGENT = getenv('HTTP_USER_AGENT');
unset( $wp_filter, $cache_userdata, $cache_lastcommentmodified, $cache_lastpostdate, $cache_settings, $category_cache, $cache_categories );

if ( ! isset($blog_id) )
	$blog_id = 1;

// Fix for IIS, which doesn't set REQUEST_URI
if ( empty( $_SERVER['REQUEST_URI'] ) ) {
	$_SERVER['REQUEST_URI'] = $_SERVER['SCRIPT_NAME']; // Does this work under CGI?
	
	// Append the query string if it exists and isn't null
	if (isset($_SERVER['QUERY_STRING']) && !empty($_SERVER['QUERY_STRING'])) {
		$_SERVER['REQUEST_URI'] .= '?' . $_SERVER['QUERY_STRING'];
	}
}

// Fix for PHP as CGI hosts that set SCRIPT_FILENAME to something ending in php.cgi for all requests
if ( strpos($_SERVER['SCRIPT_FILENAME'], 'php.cgi') == strlen($_SERVER['SCRIPT_FILENAME']) - 7 )
	$_SERVER['SCRIPT_FILENAME'] = $_SERVER['PATH_TRANSLATED'];

// Fix for PHP as CGI hosts that set PATH_INFO to PHP_SELF value
if ( $_SERVER['PATH_INFO'] == $_SERVER['PHP_SELF'] )
	unset($_SERVER['PATH_INFO']);

if ( !(phpversion() >= '4.1') )
	die( 'Your server is running PHP version ' . phpversion() . ' but WordPress requires at least 4.1' );

if ( !extension_loaded('mysql') )
	die( 'Your PHP installation appears to be missing the MySQL which is required for WordPress.' );

function timer_start() {
	global $timestart;
	$mtime = explode(' ', microtime() );
	$mtime = $mtime[1] + $mtime[0];
	$timestart = $mtime;
	return true;
}
timer_start();

// Change to E_ALL for development/debugging
error_reporting(E_ALL ^ E_NOTICE);

// For an advanced caching plugin to use, static because you would only want one
if ( defined('WP_CACHE') )
	require (ABSPATH . 'wp-content/advanced-cache.php');

define('WPINC', 'wp-includes');
require_once (ABSPATH . WPINC . '/wp-db.php');

// Table names
$wpdb->posts            = $table_prefix . 'posts';
$wpdb->users            = $table_prefix . 'users';
$wpdb->categories       = $table_prefix . 'categories';
$wpdb->post2cat         = $table_prefix . 'post2cat';
$wpdb->comments         = $table_prefix . 'comments';
$wpdb->links            = $table_prefix . 'links';
$wpdb->linkcategories   = $table_prefix . 'linkcategories';
$wpdb->options          = $table_prefix . 'options';
$wpdb->postmeta         = $table_prefix . 'postmeta';
$wpdb->usermeta         = $table_prefix . 'usermeta';

$wpdb->prefix           = $table_prefix;

if ( defined('CUSTOM_USER_TABLE') )
	$wpdb->users = CUSTOM_USER_TABLE;
if ( defined('CUSTOM_USER_META_TABLE') )
	$wpdb->usermeta = CUSTOM_USER_META_TABLE;

// We're going to need to keep this around for a few months even though we're not using it internally

$tableposts = $wpdb->posts;
$tableusers = $wpdb->users;
$tablecategories = $wpdb->categories;
$tablepost2cat = $wpdb->post2cat;
$tablecomments = $wpdb->comments;
$tablelinks = $wpdb->links;
$tablelinkcategories = $wpdb->linkcategories;
$tableoptions = $wpdb->options;
$tablepostmeta = $wpdb->postmeta;

if ( file_exists(ABSPATH . 'wp-content/object-cache.php') )
	require (ABSPATH . 'wp-content/object-cache.php');
else
	require (ABSPATH . WPINC . '/cache.php');

// For now, disable persistent caching by default.  To enable, comment out
// the following line.
define('DISABLE_CACHE', true);

wp_cache_init();

$wp_filters = array();

require (ABSPATH . WPINC . '/functions.php');
require (ABSPATH . WPINC . '/default-filters.php');
require_once (ABSPATH . WPINC . '/wp-l10n.php');

$wpdb->hide_errors();
$db_check = $wpdb->get_var("SELECT option_value FROM $wpdb->options WHERE option_name = 'siteurl'");
if ( !$db_check && (!strstr($_SERVER['PHP_SELF'], 'install.php') && !defined('WP_INSTALLING')) ) {
	if ( strstr($_SERVER['PHP_SELF'], 'wp-admin') )
		$link = 'install.php';
	else
		$link = 'wp-admin/install.php';
	die(sprintf(__("It doesn't look like you've installed WP yet. Try running <a href='%s'>install.php</a>."), $link));
}
$wpdb->show_errors();

require (ABSPATH . WPINC . '/functions-formatting.php');
require (ABSPATH . WPINC . '/functions-post.php');
require (ABSPATH . WPINC . '/capabilities.php');
require (ABSPATH . WPINC . '/classes.php');
require (ABSPATH . WPINC . '/template-functions-general.php');
require (ABSPATH . WPINC . '/template-functions-links.php');
require (ABSPATH . WPINC . '/template-functions-author.php');
require (ABSPATH . WPINC . '/template-functions-post.php');
require (ABSPATH . WPINC . '/template-functions-category.php');
require (ABSPATH . WPINC . '/comment-functions.php');
require (ABSPATH . WPINC . '/feed-functions.php');
require (ABSPATH . WPINC . '/links.php');
require (ABSPATH . WPINC . '/kses.php');
require (ABSPATH . WPINC . '/version.php');

if (!strstr($_SERVER['PHP_SELF'], 'install.php')) :
    // Used to guarantee unique hash cookies
    $cookiehash = md5(get_settings('siteurl')); // Remove in 1.4
	define('COOKIEHASH', $cookiehash); 
endif;

if ( !defined('USER_COOKIE') )
	define('USER_COOKIE', 'wordpressuser_'. COOKIEHASH);
if ( !defined('PASS_COOKIE') )
	define('PASS_COOKIE', 'wordpresspass_'. COOKIEHASH);
if ( !defined('COOKIEPATH') )
	define('COOKIEPATH', preg_replace('|https?://[^/]+|i', '', get_settings('home') . '/' ) );
if ( !defined('SITECOOKIEPATH') )
	define('SITECOOKIEPATH', preg_replace('|https?://[^/]+|i', '', get_settings('siteurl') . '/' ) );
if ( !defined('COOKIE_DOMAIN') )
	define('COOKIE_DOMAIN', false);

require (ABSPATH . WPINC . '/vars.php');

do_action('core_files_loaded');

// Check for hacks file if the option is enabled
if (get_settings('hack_file')) {
	if (file_exists(ABSPATH . '/my-hacks.php'))
		require(ABSPATH . '/my-hacks.php');
}

if ( get_settings('active_plugins') ) {
	$current_plugins = get_settings('active_plugins');
	if ( is_array($current_plugins) ) {
		foreach ($current_plugins as $plugin) {
			if ('' != $plugin && file_exists(ABSPATH . 'wp-content/plugins/' . $plugin))
				include_once(ABSPATH . 'wp-content/plugins/' . $plugin);
		}
	}
}

require (ABSPATH . WPINC . '/pluggable-functions.php');

if ( defined('WP_CACHE') && function_exists('wp_cache_postload') )
	wp_cache_postload();

do_action('plugins_loaded');

// If already slashed, strip.
if ( get_magic_quotes_gpc() ) {
	$_GET    = stripslashes_deep($_GET   );
	$_POST   = stripslashes_deep($_POST  );
	$_COOKIE = stripslashes_deep($_COOKIE);
	$_SERVER = stripslashes_deep($_SERVER);
}

// Escape with wpdb.
$_GET    = add_magic_quotes($_GET   );
$_POST   = add_magic_quotes($_POST  );
$_COOKIE = add_magic_quotes($_COOKIE);
$_SERVER = add_magic_quotes($_SERVER);

$wp_query = new WP_Query();
$wp_rewrite = new WP_Rewrite();
$wp = new WP();
$wp_roles = new WP_Roles();

define('TEMPLATEPATH', get_template_directory());

// Load the default text localization domain.
load_default_textdomain();

// Pull in locale data after loading text domain.
require_once(ABSPATH . WPINC . '/locale.php');

// Load functions for active theme.
if ( file_exists(TEMPLATEPATH . "/functions.php") )
	include(TEMPLATEPATH . "/functions.php");

function shutdown_action_hook() {
	wp_cache_close();
	do_action('shutdown');
}
register_shutdown_function('shutdown_action_hook');

// Everything is loaded and initialized.
do_action('init');
?>