Pre-Wordpress bootstrapping file which removes any development or staging domains from finalized output. Relies on an environment constant WP_ENVIRONMENT. Wordpress's index.php should be renamed to wordpress.php.

gistfile1.php

<?php

// Application bootstrap

// Start buffering output. We'll do some work on it later.
ob_start();

// Bootstrap Wordpress
// PHP 5.2 is still in use, so we cannot use __DIR__
require dirname(__FILE__).'/wordpress.php';

if (WP_ENVIRONMENT === 'production')
{
	$find = array(

		'example.dev',
		'staging.example.com',

	);
	
	// Rewrite dev/preview URLs in final output
	echo str_ireplace($find, 'example.com', ob_get_clean());
}

else
{
	ob_end_flush();
}