laravel controller example function that gets all category by name

Example 1: how to create controller in laravel

Simple controller:
php artisan make:controller nameOfController  
  
Want to create controller in a folder? use it like this:
php artisan make:controller NameOfFolder/nameOfController  
  
Resource Controller:This controller will create all CRUD methods
php artisan make:controller nameOfController --resource

Example 2: use resource in laravel 8

php artisan make:controller PhotoController --resource --model=Photo