wp-config-prod-dev.php

<?php
// Database settings

switch($_SERVER['SERVER_NAME']) {

// Local Environment

case 'localhost':

define('DB_NAME', 'db_name');

define('DB_USER', 'db_user');

define('DB_PASSWORD', 'db_password');

define('DB_HOST', 'localhost');

break;

// Production environment

case 'www.domain.com':

case 'domain.com':

define('DB_NAME', 'db_name');

define('DB_USER', 'db_user');

define('DB_PASSWORD', 'db_password');

define('DB_HOST', 'localhost');

break;

}
?>