[GIT-PULLS] [php-src] PR #22736: Implement declare(strict_namespace=1) to disable global name fallback

[email protected] (pmjones)
Newsgroups php.git-pulls
Message-ID <[email protected]> 
Pull Request: https://github.com/php/php-src/pull/22736
Author: pmjones

This introduces a file-scoped `declare` that disables the global fallback on function and constant names. Unqualified functions and constants in a namespace resolve to the current namespace only when `strict_namespace=1`. The special constants `true`/`false`/`null` still resolve correctly.

This is a compile-time change only; no VM, JIT, or runtime changes.

RFC forthcoming.
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