Route with parameter laravel 5.2

Question

I was descriped routes.php as

Route::get('/{id}', 'HomeController@index');

And I want to use HomeController without parameter too. How to do it?

Update: if url without parameter, I also want to use HomeController to display homepage, if url with parameter I want to display some data using controller.

Answer 1

You want to use optional parameters :

Route::get('/{id?}', 'HomeController@index');

Occasionally you may need to specify a route parameter, but make the presence of that route parameter optional. You may do so by placing a ? mark after the parameter name.

Answer 2

Your id will be passed as a param to the controller function

public function index($id) {
echo $id;

}

if you want to use it without params you will need a optional parameter

Route::get('/{id?}', 'HomeController@index');

change your controller function to

public function index($id = 0) {
    if ($id > 0 ) {
    echo $id;
    } else {
     echo "display all";
    }
    }