example using .env with MSM

Author: intoeetive

docs/advanced-usage/env-support.md

@@ -50,7 +50,67 @@ $config['save_tmpl_files'] = 'y';
 $config['base_url'] = $_ENV['BASE_URL'];
 $config['site_url'] = $config['base_url'];
 
-$config['app_version'] = '7.0.0-rc.1';
+$config['app_version'] = '7.2.0';
+$config['encryption_key'] = 'bb748b72de235352315122d00';
+$config['session_crypt_key'] = '985796e4444444563463e2c80242';
+
+$config['database'] = array(
+	'expressionengine' => array(
+		'hostname' => $_ENV['DB_HOSTNAME'],
+		'database' => $_ENV['DB_DATABASE'],
+		'username' => $_ENV['DB_USERNAME'],
+		'password' => $_ENV['DB_PASSWORD'],
+		'dbprefix' => 'exp_',
+		'char_set' => 'utf8mb4',
+		'dbcollat' => 'utf8mb4_unicode_ci',
+		'port'     => $_ENV['DB_PORT'],
+	),
+);
+$config['show_ee_news'] = 'y';
+
+// EOF
+```
+
+## MSM Example
+
+If your ExpressionEngine installation is hosting multiple sites, you can specify different values for MSM sites configuiration by using site short name as prefix.
+
+Th site short name can be accessed in the code using `$GLOBALS['assign_to_config']['site_name']` variable.
+
+The below example demonstrates this approach, assuming you have 2 MSM sites with short names of `default_site` and `second_site`
+
+```
+# .env.php
+
+# SITE-SPECIFIC SETTINGS
+
+default_site.BASE_PATH=/home/sites/mysite.test/
+default_site.BASE_URL=http://mysite.test/
+
+second_site.BASE_PATH=/home/sites/anothersite.test/
+second_site.BASE_URL=http://anothersite.test/
+
+# DATABASE SETTINGS
+# # # # # # # # # # # #
+DB_HOSTNAME=db
+DB_DATABASE=db
+DB_USERNAME=db
+DB_PASSWORD=db
+DB_PORT=3306
+```
+
+```
+// system/user/config.php
+<?php  if ( ! defined('BASEPATH')) exit('No direct script access allowed');
+
+$config['save_tmpl_files'] = 'y';
+
+$config['base_path'] = $_ENV[$GLOBALS['assign_to_config']['site_name'] . '.' . 'BASE_PATH'];
+$config['base_url'] = $_ENV[$GLOBALS['assign_to_config']['site_name'] . '.' . 'BASE_URL'];
+
+$config['site_url'] = $config['base_url'];
+
+$config['app_version'] = '7.2.0';
 $config['encryption_key'] = 'bb748b72de235352315122d00';
 $config['session_crypt_key'] = '985796e4444444563463e2c80242';