A portable wp-config.php for developing WordPress locally

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
 */
 
if (in_array($_SERVER['REMOTE_ADDR'], array('127.0.0.1', '::1', '0:0:0:0:0:0:0:1'))) {
 
    /** We're accessing WordPress from localhost, which means this is our dev setup */
    define('WP_ENV', 'development');
} else {
    define('WP_ENV', 'production');
}
 
/**
 * 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);
 
if(WP_ENV == 'development') {
 
	/** Development domain goes here */
	define('WP_SITEURL', 'http://localhost/example');
	define('WP_HOME', 'http://localhost/example');
 
	/** We're working locally, so use the dev database details */
 
	define('DB_NAME', 'database_name_here');
	define('DB_USER', 'username_here');
	define('DB_PASSWORD', 'password_here');
	define('DB_HOST', 'localhost');
	define('DB_CHARSET', 'utf8');
	define('DB_COLLATE', '');
 
        if(WP_DEBUG == true) {
 
            /** Display errors on-screen */
            define('WP_DEBUG_DISPLAY', true);
 
            /** Log errors to debug.log in /wp-content as well, for reference */
            define('WP_DEBUG_LOG', true);
        }
}
elseif(WP_ENV == 'production') {
 
	/** Live domain goes here */
	
	define('WP_SITEURL', 'http://example.com');
	define('WP_HOME', 'http://example.com'); 
 	define('FTP_USER', 'username'); // Your FTP username
	define('FTP_PASS', 'password'); // Your FTP password
	define('FTP_HOST', 'ftp.example.com:21'); // Your FTP URL:Your FTP port
 
	/** Live database details */
 
	define('DB_NAME', 'database_name_here');
	define('DB_USER', 'username_here');
	define('DB_PASSWORD', 'password_here');
	define('DB_HOST', 'localhost');
	define('DB_CHARSET', 'utf8');
	define('DB_COLLATE', '');        
	
	/** Disable file editing through WP Admin */
	define( 'DISALLOW_FILE_EDIT', true );
 
        if(WP_DEBUG == true) {
 
            /** Don't display WP errors */
            define('WP_DEBUG_DISPLAY', false);
 
            /** Log errors to debug.log in /wp-content instead */
            define('WP_DEBUG_LOG', true);
 
            /** Suppress PHP errors, which are normally turned on by WP_DEBUG */
            @ini_set('display_errors',0);         
        }
}
 
 
/**#@+
 * 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',         'put your unique phrase here');
define('SECURE_AUTH_KEY',  'put your unique phrase here');
define('LOGGED_IN_KEY',    'put your unique phrase here');
define('NONCE_KEY',        'put your unique phrase here');
define('AUTH_SALT',        'put your unique phrase here');
define('SECURE_AUTH_SALT', 'put your unique phrase here');
define('LOGGED_IN_SALT',   'put your unique phrase here');
define('NONCE_SALT',       'put your unique phrase here');
 
/**#@-*/
 
/**
 * WordPress Database Table prefix.
 *
 * You can have multiple installations in one database if you give each a unique
 * prefix. Only numbers, letters, and underscores please!
 */
$table_prefix  = 'wp_';
 
/**
 * 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', '');
 
/* 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');