phpbb\controller\helper::url()
has been removed.instead you should use
phpbb\controller\helper::route()
now.This allows admins to change the routes, without editing any other files then the routing.yml
The parameters are almost the same, except the first one.
Instead of the URL, you inject the name of the route.
The second parameter is required to be an array.
For examples you can have a look at the test file:
https://github.com/phpbb/phpbb/blob/dev ... st.php#L53