> Could you clarify on a use-case for changing the semantics of `mixed`?
For example storage which does not allow to store null. Like simple cache which treats null as "miss", so it is not able to cache null as value. Obviously it is not a deal breaker and use case is quite rare anyway, but this is just example when mixed type-hint may work as actual type-hint, not just replacement for PHPDoc or equivalent of... nothing. Regards, Robert Korulczyk -- PHP Internals - PHP Runtime Development Mailing List To unsubscribe, visit: http://www.php.net/unsub.php
