Configure Yii2 Advanced on single domain with multiple backends - .htaccess

Question

From: http://www.yiiframework.com/wiki/799/yii2-app-advanced-on-single-domain-apache-nginx/#hh2
It works but I have created another backend.
This is the .htaccess configuration that I have:
RewriteEngine On
# End the processing, if a rewrite already occurred
RewriteRule ^(frontend|backend2)/web/ - [L]
RewriteRule ^(frontend|backend)/web/ - [L]
# Handle the case of backend, skip ([S=1]) the following rule, if current matched
RewriteRule ^backend(/(.*))?$ backend/web/$2 [S=1]
RewriteRule ^backend2(/(.*))?$ backend2/web/$3 [S=2]
# handle the case of frontend
RewriteRule .* frontend/web/$0
# Uncomment the following, if you want speaking URL
#RewriteCond %{REQUEST_FILENAME} !-f
#RewriteCond %{REQUEST_FILENAME} !-d
#RewriteRule ^([^/]+/web)/.*$ $1/index.php
Final frontend URL: http:// example.com/ -> OK.
Final backend URL: http:// example.com/backend -> Error 404.
Final another backend URL: http:// example.com/backend2 -> OK.

Answer 1

You need to edit your .htaccess according to this:
RewriteEngine On
# End the processing, if a rewrite already occurred
RewriteRule ^(frontend|backend|backend2)/web/ - [L]
# Handle the case of backend, skip ([S=2]) two following rules, if current matched
RewriteRule ^backend(/(.*))?$ backend/web/$2 [S=2]
# Handle the case of backend2, skip ([S=1]) the following rule, if current matched
RewriteRule ^backend2(/(.*))?$ backend2/web/$2 [S=1]
# handle the case of frontend
RewriteRule .* frontend/web/$0
# Uncomment the following, if you want speaking URL
#RewriteCond %{REQUEST_FILENAME} !-f
#RewriteCond %{REQUEST_FILENAME} !-d
#RewriteRule ^([^/]+/web)/.*$ $1/index.php
You need to edit backend2/config/main.php:
....
'components' => [
....
'request'=>[
'baseUrl'=>'/backend2',
],
'urlManager'=>[
'scriptUrl'=>'/backend2/index.php',
],
// use the following, if you want to enable speaking URL for the backend
// 'urlManager' => [
// 'enablePrettyUrl' => true,
// 'showScriptName' => false,
// ],
],
Also, you need to create environments/dev/backend2 and environments/prod/backend2 folders with appropriate content and fix all namespaces and paths to backend2.