Wordpress multiple environments config

wp-config.default.php

<?php
/**
 * Default config settings
 *
 * Enter any WordPress config settings that are nonspecific to any environment
 * in this file.
 */


/** Database Charset to use in creating database tables. */
define('DB_CHARSET', 'utf8');

/** The Database Collate type. Don't change this if in doubt. */
define('DB_COLLATE', '');

/**#@+
 * Authentication Unique Keys and Salts.
 *
 * Change these to different unique phrases!
 * You can generate these using the {@link https://api.wordpress.org/secret-key/1.1/salt/ WordPress.org secret-key service}
 * You can change these at any point in time to invalidate all existing cookies. This will force all users to have to log in again.
 *
 * @since 2.6.0
 */
define('AUTH_KEY',         '');
define('SECURE_AUTH_KEY',  '');
define('LOGGED_IN_KEY',    '');
define('NONCE_KEY',        '');
define('AUTH_SALT',        '');
define('SECURE_AUTH_SALT', '');
define('LOGGED_IN_SALT',   '');
define('NONCE_SALT',       '');

/**#@-*/


/**
 * WordPress Localized Language, defaults to English.
 *
 * Change this to localize WordPress. A corresponding MO file for the chosen
 * language must be installed to wp-content/languages. For example, install
 * de_DE.mo to wp-content/languages and set WPLANG to 'de_DE' to enable German
 * language support.
 */
define('WPLANG', 'nl_NL');

wp-config.env.php

<?php
/**
 * Setup environments
 *
 * Set environment based on the current server hostname, this is stored
 * in the $hostname variable
 *
 * You can define the current environment via:
 *     define('WP_ENV', 'production');
 *
 * @package    Studio 24 WordPress Multi-Environment Config
 * @version    1.0
 * @author     Studio 24 Ltd  <info@studio24.net>
 */


// Set environment based on hostname
switch ($hostname) {

    case 'localenvironment.local':
        define('WP_ENV', 'local');
        break;

    case 'stagingenvironment.com':
        define('WP_ENV', 'staging');
        break;

    default:
        define('WP_ENV', 'production');
}

wp-config.local.php

<?php
/**
 * Development environment config settings
 *
 * Enter any WordPress config settings that are specific to this environment
 * in this file.
 *
 * @package    Studio 24 WordPress Multi-Environment Config
 * @version    1.0
 * @author     Studio 24 Ltd  <info@studio24.net>
 */


// ** MySQL settings - You can get this info from your web host ** //
/** The name of the database for WordPress */
define('DB_NAME', 'name_database');

/** MySQL database username */
define('DB_USER', 'root');

/** MySQL database password */
define('DB_PASSWORD', 'root');

/** MySQL hostname */
define('DB_HOST', 'localhost');

$table_prefix  = 'wp_';


/**
 * For developers: WordPress debugging mode.
 *
 * Change this to true to enable the display of notices during development.
 * It is strongly recommended that plugin and theme developers use WP_DEBUG
 * in their development environments.
 */
define('WP_DEBUG', false);

wp-config.php

<?php
/**
 * The base configurations of the WordPress.
 *
 * This file has the following configurations: MySQL settings, Table Prefix,
 * Secret Keys, WordPress Language, and ABSPATH. You can find more information
 * by visiting {@link http://codex.wordpress.org/Editing_wp-config.php Editing
 * wp-config.php} Codex page. You can get the MySQL settings from your web host.
 *
 * This file is used by the wp-config.php creation script during the
 * installation. You don't have to use the web site, you can just copy this file
 * to "wp-config.php" and fill in the values.
 *
 * @package WordPress
 */


/**
 * WordPress Multi-Environment Config
 *
 * Loads config file based on current environment, environment can be set
 * in either the environment variable 'WP_ENV' or can be set based on the
 * server hostname.
 *
 * This also overrides the option_home and option_siteurl settings in the
 * WordPress database to ensure site URLs are correct between environments.
 *
 * Common environment names are as follows, though you can use what you wish:
 *
 *   production
 *   staging
 *   development
 *
 * For each environment a config file must exist named wp-config.{environment}.php
 * with any settings specific to that environment. For example a development
 * environment would use the config file: wp-config.development.php
 *
 * Default settings that are common to all environments can exist in wp-config.default.php
 *
 * @package    Studio 24 WordPress Multi-Environment Config
 * @version    1.0
 * @author     Studio 24 Ltd  <info@studio24.net>
 */


define( 'WP_MAX_MEMORY_LIMIT', '1024M' );


// Try environment variable 'WP_ENV'
if (getenv('WP_ENV') !== false) {
    // Filter non-alphabetical characters for security
    define('WP_ENV', preg_replace('/[^a-z]/', '', getenv('WP_ENV')));
}

// Define site host
if (isset($_SERVER['X_FORWARDED_HOST']) && !empty($_SERVER['X_FORWARDED_HOST'])) {
    $hostname = $_SERVER['X_FORWARDED_HOST'];
} else {
    $hostname = $_SERVER['HTTP_HOST'];
}

// Try server hostname
if (!defined('WP_ENV')) {
    // Set environment based on hostname
    include 'wp-config.env.php';
}

// Are we in SSL mode?
if (!empty($_SERVER['HTTPS']) && $_SERVER['HTTPS'] != 'off') {
    $protocol = 'https://';
} else {
    $protocol = 'http://';
}

// Load default config
include 'wp-config.default.php';

// Load config file for current environment
include 'wp-config.' . WP_ENV . '.php';

// Define WordPress Site URLs if not already set in config files
if (!defined('WP_SITEURL')) {
    define('WP_SITEURL', $protocol . rtrim($hostname, '/'));
}
if (!defined('WP_HOME')) {
    define('WP_HOME', $protocol . rtrim($hostname, '/'));
}

// define('UPLOADS', '_webdata');

// Clean up
unset($hostname, $protocol);

/** End of WordPress Multi-Environment Config **/


/* That's all, stop editing! Happy blogging. */

/** Absolute path to the WordPress directory. */
if ( !defined('ABSPATH') )
	define('ABSPATH', dirname(__FILE__) . '/');

/** Sets up WordPress vars and included files. */
require_once(ABSPATH . 'wp-settings.php');

wp-config.production.php

<?php
/**
 * Production environment config settings
 *
 * Enter any WordPress config settings that are specific to this environment
 * in this file.
 *
 * @package    Studio 24 WordPress Multi-Environment Config
 * @version    1.0
 * @author     Studio 24 Ltd  <info@studio24.net>
 */


// ** MySQL settings - You can get this info from your web host ** //
/** The name of the database for WordPress */
define('DB_NAME', 'name_database');

/** MySQL database username */
define('DB_USER', 'username_database');

/** MySQL database password */
define('DB_PASSWORD', 'password_database');

/** MySQL hostname */
define('DB_HOST', 'localhost');

$table_prefix  = 'wp_';


/**
 * For developers: WordPress debugging mode.
 *
 * Change this to true to enable the display of notices during development.
 * It is strongly recommended that plugin and theme developers use WP_DEBUG
 * in their development environments.
 */
define('WP_DEBUG', false);

wp-config.staging.php

<?php
/**
 * Staging environment config settings
 *
 * Enter any WordPress config settings that are specific to this environment
 * in this file.
 *
 * @package    Studio 24 WordPress Multi-Environment Config
 * @version    1.0
 * @author     Studio 24 Ltd  <info@studio24.net>
 */


// ** MySQL settings - You can get this info from your web host ** //
/** The name of the database for WordPress */
define('DB_NAME', 'name_database');

/** MySQL database username */
define('DB_USER', 'username_database');

/** MySQL database password */
define('DB_PASSWORD', 'password_database');

/** MySQL hostname */
define('DB_HOST', 'localhost');


/**
 * For developers: WordPress debugging mode.
 *
 * Change this to true to enable the display of notices during development.
 * It is strongly recommended that plugin and theme developers use WP_DEBUG
 * in their development environments.
 */
define('WP_DEBUG', false);