Redirect subdomain to CakePHP action
.htaccess, apache, cakephp, mod-rewrite, php
Solution
What you're asking (change the domain name in URL but don't let browser see URL change) is not achievable under normal scenario. However to make it possible you have enable `mod_proxy` in your Apache and restart it. Once that is done use following code in your site root .htaccess:
RewriteCond %{HTTP_HOST} ^([^.]+)\.myserver\.com$ [NC]
RewriteRule !^m/ http://myserver.com/m/sites/%1%{REQUEST_URI} [NC,L,P]
Problem
Background I have a CakePHP application that lives in `/m/`. I want to write a root-level `.htaccess` file which will redirect "subdomains" for the site as parameters to actions. For example: I want to write a rewrite rule which will result in redirects like this - - `http://mysite.myserver.com` → `http://myserver.com/m/mysite/` - `http://mysite.myserver.com/home` → `http://myserver.com/m/mysite/home` - `http://mysite.myserver.com/foo/bar?baz=true` → `http://myserver.com/m/mysite/foo/bar?baz=true` Ideally, this redirect should be invisible to users (I don't want to use a 301, because I don't want to change the URL). Here's my current attempt: ``` <IfModule mod_rewrite.c> Options +FollowSymLinks RewriteEngine on RewriteCond %{HTTP_HOST} ^(.*)\.myserver\.com$ [NC] RewriteRule ^(.*)$ http://myserver.com/m/%1/$1 [L] </IfModule> ``` As far as I can tell, the main issue is with `$_SERVER['REQUEST_URI']`: - If I browse to `http://myserver.com/m/mysite/home` directly, `$_SERVER['REQUEST_URI'] = /m/mysite/home`. - If I browse to `http://mysite.myserver.com/home` using the `.htaccess` file above, `$_SERVER['REQUEST_URI'] = /home`. The Issue Because of the issues with `$_SERVER['REQUEST_URI']`, my routes aren't parsing correctly: it's trying to take the user to `/home` rather than `/m/mysite/home` as desired. How can I change my rewrite rule to make this work properly? Is there another way to accomplish this?