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Date: Fri, 04 Nov 2022 09:05:39 +0000
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Subject: Re: [PHP-DEV] ARRAY_UNIQUE_IDENTICAL option
From: rowan.collins@gmail.com (Rowan Tommins)

On 3 November 2022 18:53:40 GMT, someniatko <someniatko@gmail=2Ecom> wrote:
>You will have to memorize yet another PHP quirk, or be able to build a
>logical chain:
>- enums are non-comparable by default
>- enums have no default string value (if not baked by a string)
>- array_unique internally sorts an array
>- default flag for array_unique compares the string representations of it=
s items
>- thus it won't work for enums in a general case


Actually, I think this is already the case for "normal" objects - I had no=
 idea that array_unique used a string cast to compare objects, so am very s=
urprised that it will not consider objects of completely different classes =
unique, if they happen to have the same string value: https://3v4l=2Eorg/UG=
CvB

Making backed enums work with their backing value would be equally confusi=
ng to me - Day::MONDAY and Month::JANUARY might both be backed by a 1, but =
they are certainly distinct values=2E I'd much rather get an error that mad=
e me check the manual and find a flag than have one of them silently discar=
ded=2E

Regards,

--=20
Rowan Tommins
[IMSoP]