PHP 8.2 RFC: Deprecate dynamic properties

Deprecate dynamic properties
PHP 8.2
Under Discussion

Deprecate dynamic properties

TypeImprovement
Version PHP 8.2

When writing to a property that has not been declared, PHP will silently create a dynamic property instead. In modern code, this is rarely done intentionally. This RFC proposes to deprecate and later remove the creation of dynamic properties. stdClass and __get/__set are not affected by this change.

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