Re: 'Uninitialized' creates a lot of cluttering

> Le 13 févr. 2023 à 13:12, Robert Landers <landers.robert@gmail.com> a écrit : > > I hope we can all agree that null is the absence of a value. > Now we > currently have two different meanings of "absence of a value" which is > super annoying sometimes. > Although null is often used with that semantics in mind, from a technical point of view, it is definitely not the same thing as “absence of a value”. For example: ```php function dump_answer($answer = 42) { var_dump($answer); } // null dump_answer(null); // NULL // absence of value dump_answer(); // int(42) ``` Or: ```php $a = [ 'foo' => null ]; // has value null var_dump(array_key_exists('foo', $a)); // true // is absent var_dump(array_key_exists('bar', $a)); // false ``` —Claude