Re: [Concept] Flip relative function lookup order (global, then local)

> > > > > > A third option, which I haven't seen come up on the list yet, is > > that > > unqualified functions that are PHP built-ins are treated as global, > > and > > using a function having the same name as a built-in, in a namespace > > scope, requires a fully qualified name to override the built-in. > > > > It seems that if someone is writing array_key_exists() or > > similar > > they probably mean the built-in function, and in the rare cases > > where > > they do mean \foo\array_key_exists(), they can write it > > explicitly. > > > > Functions that are *not* on the built-in function list could > > default to > > the local namespace. > > I was actually thinking of doing something like this for function > autoloading, where extensions could register global functions that > bypass the autoloader and go straight to global if it isn't defined > in the local namespace already. I decided not to even bring it up > because it felt controversial (it would effectively be global first, > except for user functions). Though, it might be a nice compromise? > > — Rob I think we are all trying to achieve the same thing here. There's different ways to go about it, each with pros and cons, but I think we need to think through how all the parts fit together, because I think if we can reach consensus, then several RFCs become compatible with each other. A change to how function namespace lookup works would affect function auto-loading, and it may even make it simpler, depending on the other options that we end up going with.