Hey Internals, I'm new here. I've been wondering / working on adding final properties into PHP lang.
This work started once I had the time to read the "Core Java for Impateient" by Cay S. Horstmann and found it very usefull to have final properties like Java. Those properties differ than `const` because they can be set at runtime - but only once in their lifetime. Such properties could be very usefull in Singletons, ValueObjects etc. impl like: class Money { public final $amount; public final $currency; public function __constructor($amount, $currency) { $this->amount = $amount; $this->currency = $currency; } } In above example there is even no need for getter because those properties are immutable through the final keyword, it means those properties cannot change their references just like in Java https://en.wikipedia.org/wiki/Final_(Java) I've already started some impl on own fork https://github.com/php/php-src/compare/master...brzuchal:final-properties I've got some basics in C programming, don't know yet if I can impl it complex. I was wondering if it is usefull in yours opinion or is it only my impression. I can provide an RFC if it sounds usefull and if I get Wiki karma Thanks -- Michał Brzuchalski (aka brzuchal)