virtual subdomain with htaccess

[eluser]Jelmer[/eluser]
While they don't address your problem specificly they find a way to map subdomains to a specific function of a specific controller. You want to map subdomains to corresponding controller, which is quite similar.

If your current domain works as a wildcard every subdomain should be handled exactly like the domain (if not, look at the instructions from the 2nd url).

The point of the username as URL is that everything works from the document root which is called on every subdomain and doesn't need "physical" directories to work. Important from the second URL are the instruction about the base_url:

Code:

$config['base_url'] = "http://".$_SERVER["HTTP_HOST"];

And the first URL learns you to define a constant that contains the subdomain. After which you can change the default_route in the routes.php by testing for the contents of the constant. And you could have each subdomain handled by different controllers this way. I prefer to set the constants in the main index.php instead of a config - but that's probably not considered good practice.

For example (with constant SUBDOMAIN set):

Code:

if (SUBDOMAIN == '' OR SUBDOMAIN == 'www')
    $route['default_controller'] = "site";
else
    $route['default_controller'] = SUBDOMAIN;