Re: Union `&` operator

Hey Eugene, On Sat, Nov 7, 2020 at 4:13 PM Eugene Sidelnyk <zsidelnik@gmail.com> wrote: > ```php > function foo(A & B & E $object) { > // some work > > var_dump($object); > } > ``` > Fully support this for parameter, property and return types: already making good use of intersection types since a few years. As for when to allow them: as others have suggested in this thread, keep it simple for now, and only allow intersection of class/interface references. If you want to raise an RFC, special care has to be taken for the variance in inheritance semantics. Greets, Marco Pivetta http://twitter.com/Ocramius http://ocramius.github.com/