https://javascript.info/weakmap-weakset?utm_campaign=thisweekinreact&utm_medium=email&utm_source=Revue%20newsletter
weakmap
https://www.educative.io/courses/php-8-programming-tips-tricks-and-best-practices/using-weak-references-to-improve-efficiency
Learn how PHP 8's weak references and WeakMap improve memory management by allowing efficient handling of large objects in long-running applications.
weak referencesusingweakmapenhancephp