feat: allow built-in PHP functions and constants in ReferenceUsedNamesOnly configuration #11
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Summary
This PR updates the ReferenceUsedNamesOnly sniff configuration to prevent importing PHP
built-in functions and constants while keeping strict importing rules for namespaced symbols.
Changes
Why
The previous configuration caused PHPCS and PHPCBF to auto-insert
use functionstatementsfor built-in functions like array_map() and implode(). This added noise and did not match
common PHP coding style.
Impact