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Dear internals,
It's my pleasure to submit this new RFC to yours.
Please have a look and let me know:
https://wiki.php.net/rfc/exists-magic-method
TL;DR: I'm proposing a new opt-in magic method:
public function __exists(string $name): bool;
It'd let userland tell "set to null" apart from "missing" on objects, it'd
restore
isset() <=> ?? equivalence on magic properties, and it'd fixe GH-12695 as a
corollary. It's forward-compatible as a regular method on PHP <= 8.5
(probeable
via method_exists()), and would be magic on 8.6+.
Cheers,
Nicolas