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Subject: [RFC][Discussion] Consistent callables
From: danack@basereality.com (Dan Ackroyd)

Hi,

I'd like to introduce an RFC to cleanup the behaviour of callables and
related functions in PHP.

https://wiki.php.net/rfc/consistent_callables

Note, this RFC targets PHP 8, with soft deprecations in PHP 7.3 and
deprecation notices in 7.last. This means there is a lot of time for
reading and thinking about the RFC.

One piece of feedback I've had from informal discussions is that the
BC break for one part is too big even for a major release number. I'd
like to get other people's opinion on the RFC before possibly
modifying it.

Additionally modifying the signature of is_callable() might not be the
best path. Again, looking forward to getting the opinion of other
people.

cheers
Dan
Ack