> On Sep 8, 2021, at 4:59 PM, Rowan Tommins <[email protected]> wrote:
>> I assume we would also disallow dynamic properties in anonymous classes too,
>> right? After all, they are just statically declared classes that the
>> developer do not assign a name.
>
> The difference I see is that stdClass/DynamicObject allows you to add or
> remove properties from an object *after it has been created*. I think a lot
> of use cases don't actually need that, and would benefit from error messages
> when doing so accidentally.
The concern is *not* were they are not needed, but instead where they *are*
needed. Such as when loading JSON from a source that does not ensure the
schema is 100% stable over time.
That's also why I was hoping some of those complaining about deprecating
stdClass would explain explain their use-cases as they may know of use-cases we
are not considering.
> You mentioned short-hand syntaxes like this:
>
>> $obj = {
>> foo: 1,
>> bar: "hello",
>> baz: true,
>> };
>
> I would love for that, or some other short-hand, to be equivalent to this:
>
> $obj = new class(foo: 1, bar: "hello", baz: true) {
> public $foo;
> public $bar;
> public $baz;
> public function __construct($foo, $bar, $baz) {
> $this->foo = $foo;
> $this->bar = $bar;
> $this->baz = $baz;
> }
> }
>
> That is, an anonymous class, with exactly those three properties. If you
> *also* want to be able to define extra properties after it's created, you
> could opt into that using whatever mechanism a named class would (parent
> class, trait, attribute, etc; see other thread).
Exactly!
Actually the same functionality for named classes is something I have wanted
since literally the very first day I starting using PHP so I wouldn't have to
run userland code that loops through an array that runs for so many object
instantiations. I have to believe it would be more performant if in C. (Reasons
I do that? Loading from JSON, XML and/or SQL.). We've need either a magic
method or ability to pass a close for name translations and short circuiting.
That functionality is the primary reason I almost always use a base class; it
would be nice to get rid of that requirement.
> Similarly, the objects created by json_decode or PDO_FETCH_OBJECT only need
> the *initial* properties to be dynamic, not to allow properties to be added
> later.
How do you define "initial?"
-Mike
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