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Date: Wed, 16 Jan 2019 21:48:20 -0800
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Subject: Re: [PHP-DEV] [RFC] Reflection for references
From: smalyshev@gmail.com (Stanislav Malyshev)

Hi!

> I'd like to propose the addition of a ReflectionReference class, as
> described in the following RFC:
> https://wiki.php.net/rfc/reference_reflection

Do I understand correctly that the main use case here is to know if two
variables (treating this term expansively) point, by reference, to the
same zval/location? If so, I'd probably prefer a function that gives
answer to exactly this question.

Currently proposed API sounds a bit weird to me - why it's only
constructed from array element? It looks like a strange limitation.

Additionally, I'm not sure I understand whether there's a case for
"knowing whether array element is a reference to something" without it
being the use case above (i.e. comparing two things). I have no idea
what VarCloner does so it would be useful to have some clarity there.

> The TL;DR is that some libraries need a way to detect references and
> determine whether two references are the same. They previously used an ugly

Is this the same case or two different cases? Also, why do they need to
do it - what they are doing with this information afterwards?

-- 
Stas Malyshev
smalyshev@gmail.com