php__symfony__book/config/routes.yaml

#index:
#    path: /
#    controller: App\Controller\DefaultController::index
#
#index:
#  path: /
#  controller: App\Controller\DefaultController::index
#
#hello:
#  path: /hello/{name}
#  controller: App\Controller\DefaultController::hello
#
#hello-json:
#  path: /json/{name}
#  controller: App\Controller\DefaultController::helloJson
#