Clean urls cannot get function id in CodeIgniter

I am using CodeIgniter in my project and I need to clean the url. I use this htaccess:

RewriteEngine On
RewriteCond $0 !^(index\.php|images|captcha|css|js|robots\.txt)
RewriteRule ^.*$ index.php [L]

The url redirect is working fine. If I use localhost/example/controll/ this works fine, if I have an controll as controller, but if I need to pass a value to the control开发者_C百科ler like localhost/example/controll/how-to-design/ it says 404 not found. Do I need to get the how-to design in controll class and process it?

the URL localhost/example/controll/how-to-design translates to a controller called controll and a method called how-to-design

CI will be looking for a method called how-to-design, which presumably doesn't exist.

If you want to pass that parameter to controll the URL needs to be:

controll/index/how-to-design

function index($param)
{ 
   echo $param; // echoes how-to-design
}

you can probably fix this with routing or by using index in your URI.

You can't by default in CodeIgniter pass parameters to the controller index function - in your example CI would be looking for a method called 'how-to-design' (which in itself is impossible, as dashes are not permitted in PHP function naming conventions).

You can use the special _remap method in your controller to manually handle the routing - http://codeigniter.com/user_guide/general/controllers.html#remapping - or you could set up some manual routes in config/routes.php

write a new function and define custom routes for it in routes.php if you want to achieve it.