I also don't like the
? for
nullable. Just stick with PHP
convention and do:
class Foo {
public Bar $bar = NULL;
}
There is no such PHP convention. The PHP convention is *not restrict type*
(+"loosely typed" addons).
So NULL is automatically allowed.
For properties, yes, but the idea it stems from is type-hints. Given
the following type-hint, passing a null is not allowed:
class Foo {
function bar(Bar $bar) {}
}
Whereas in the following NULL is allowed:
class Foo {
function bar(Bar $bar = NULL) {}
}
This is what I mean by the PHP convention for allowing NULL.