Regular Expression Constraints

Route::get('/user/{name}', function ($name) { // })->where('name', '[A-Za-z]+'); Route::get('/user/{id}', function ($id) { // })->where('id', '[0-9]+'); Route::get('/user/{id}/{name}', function ($id, $name) { // })->where(['id' => '[0-9]+', 'name' => '[a-z]+']);