Re: $ref =& $this;

Lukas Smith wrote:

I think that eZ is an example of a company that shows its willing to take a risk in betting their money on PHP6 only, because they are producing a product that will then simply be on a cleaner basis for its customers. Other companies in much more controlled environments would be able to take a step like this much more easily. I know I would much more happily embrace a cleaned up PHP6 compared to a somewhat BC PHP5.

fwiw, I'd second that. 5 & 5.1 do put out a lot of warnings and notices about bad coding style which were accepted in php4. It'd make sense to go down this route and say "ok, this is a major version release. Lots of stuff will need to be re-tested to make sure it all works properly". Of course, the key thing here would be making sure that you could run php4.x/5.x alongside a php6 install so that people can easily test things without risk of breaking existing apps still on the same server.