On 18/02/2020 14:00, Nikita Popov wrote:
Principally in favor of this change, I do think that ++ and -- should
behave consistently if nothing else. We might want to consider giving
the same treatment to false/true as well, which should be interpreted
as 0/1. That is $foo++ / $foo-- should behave the same ways as
$foo+=1, $foo-=1 for null, true, false. It seems odd to single out
only "null" here.
Additionally I would suggest a notice when trying to increment arrays,
resources and objects, rather than just silently doing nothing. As
long as it's just a notice, this should have minimal BC implications.
Thanks. That seems a reasonably modest expansion, without getting into
the deeper questions of string increments or fatal errors.
For the record, the reason I singled out null is that it's the only type
where ++ and -- behave differently from each other.
With booleans, there is at least a consistency between those two
operators, even though it's consistently weird. There's definitely a
strong case for making them match +=1 and -=1 though.
Regards,
--
Rowan Tommins (né Collins)
[IMSoP]
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