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Date: Fri, 12 Jun 2020 09:52:23 +0100
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To: PHP internals <internals@lists.php.net>
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Subject: Re: [PHP-DEV] Revisiting proposal for addition of `get_class_constants()`
From: rowan.collins@gmail.com (Rowan Tommins)

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On Fri, 12 Jun 2020 at 05:32, Troy McCabe <troy.mccabe@gmail.com> wrote:

>
> > You do mention performance as a benefit, but it's not immediately
> obvious to me which use-cases are bottlenecked by class constant reflection.
>
> Enum implementations are the big case for this.
>


I've also used it in the past for generating exception messages, because
the base Exception class requires $code to be int, so given a value of
1011, I wanted to map back to a constant like "MyException::TYPE_FOO".

If the concern is that we will end up with too many of these as global
functions, might there be value in a "lightweight reflection" API, which
gave access to things like this without the full power or performance cost
of Reflection?

Regards,
-- 
Rowan Tommins
[IMSoP]

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