View file phpBB3/config/default/container/services_http.yml

services:
    http_kernel:
        class: Symfony\Component\HttpKernel\HttpKernel
        arguments:
            - '@dispatcher'
            - '@controller.resolver'
            - '@request_stack'

    # WARNING: The Symfony request does not escape the input and should be used very carefully
    #           prefer the phpbb request (service @request) as possible
    symfony_request:
        class: phpbb\symfony_request
        arguments:
            - '@request'

    request_stack:
        class: Symfony\Component\HttpFoundation\RequestStack

    request:
        class: phpbb\request\request
        arguments:
            - null
            - '%core.disable_super_globals%'