Fixing CodeIgniter Default Controller in Subdirectory - PHP Troubleshooting

If you are using CodeIgniter and have a default controller set up in a subdirectory, you may have encountered issues with the controller not being found. This can be a frustrating problem, but fortunately, there is a simple solution.

The first step is to make sure that the subdirectory is properly configured in your CodeIgniter installation. This can be done by editing the routes.php file in the application/config directory. Add a route for your subdirectory and specify the default controller for that directory.

Once you have configured the routes, you should also check the naming conventions for your default controller. By default, CodeIgniter expects the controller name to be capitalized and end with the word "Controller". For example, if your default controller is "home", the file should be named Home.php and the class defined within should be class Home extends CI_Controller.

If your controller is still not being found, ensure that the file is located in the correct subdirectory and that the file name and class name are spelled correctly.

In summary, to fix the CodeIgniter default controller issue in a subdirectory, make sure that your routes are properly configured, follow the correct naming conventions for your default controller, and ensure that the file is located in the correct directory with the correct spelling. By following these steps, you should be able to troubleshoot and resolve any issues with your CodeIgniter installation.