Custom Concrete5 config file

site.php

<?php defined('C5_EXECUTE') or die(_("Access Denied."));
$hosts = array(
  'production' => 'production.com',
  'staging' => 'staging.com',
  'local' => 'local.dev'
);
if ($_SERVER['HTTP_HOST'] == $hosts['local']) {
  define('DB_SERVER', '127.0.0.1');
  define('DB_USERNAME', 'root');
  define('DB_PASSWORD', '');
  define('DB_DATABASE', 'db');
} else if ($_SERVER['HTTP_HOST'] == $hosts['staging']) {
  define('DB_SERVER', 'staging_server');
  define('DB_USERNAME', 'staging_username');
  define('DB_PASSWORD', 'staging_password');
  define('DB_DATABASE', 'staging_db');
} else {
  define('DB_SERVER', 'production_server');
  define('DB_USERNAME', 'production_username');
  define('DB_PASSWORD', 'production_password');
  define('DB_DATABASE', 'production_db');
}

define('PASSWORD_SALT', '');
define("URL_REWRITING_ALL", true);
define('ENABLE_NEWSFLOW_OVERLAY', false);