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I was developing in XAMPP environment on my local machine, and everything is fine. I can access my controller like this:

localhost/myproject/index.php/catalog/home/get

catalog is the sub folder under controllers.

However, after I uploaded my project to the server. I should be able to access my page by the following url:

http://www.example.com/index.php/catalog/home/index

but this gives me a 404 page.

The only url works is the default page I defined in the route.php file:

$route['default_controller'] = 'welcome';

In the config.php, I set my base_url to be http://www.example.com/

All my controllers' first letter are capitalized and I'm using CI 3.1X. My server is a linux which uses nginx instead of apache. I tried to modify or delete my .htaccess file, but it doesn't solve my problem.

I'm not looking for an exact answer, I would like to know how to debug my code in this situation.

Here is an example of one of my controllers: