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Date: Sun, 18 Aug 2019 11:59:20 +0200
Message-ID: <CAG9XoMQsgkGDBt2vNYnMePykURWSwfFtYqHo4qrV8TzZnZ6HiQ@mail.gmail.com>
To: PHP Internals <internals@lists.php.net>
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Subject: get_class_vars() and typed properties
From: benjamin.morel@gmail.com (Benjamin Morel)

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Hi Internals, I just noticed the following behaviour:

    class A {
        public int $a;
        public ?int $b;
        public ?int $c =3D null;
    }

    $a =3D new A;

    var_export(get_object_vars($a));
    var_export(get_class_vars('A'));

Result:

    array (
        'c' =3D> NULL,
      )
    array (
      'a' =3D> NULL,
      'b' =3D> NULL,
      'c' =3D> NULL,
    )

Is this discrepancy expected? IMO get_object_vars() does the right thing
and does not include uninitialized properties in the result array.

OTOH, get_class_vars() returns null when the property is uninitialized,
which I think is confusing (especially when null is not a valid value for
the property), and I feel like this does not respect the documented
contract: "get_class_vars =E2=80=94 Get the default properties of the class=
" when
null is *not* the default value.

I did not file a bug yet as I wanted to gather some feedback first.
Thank you.

=E2=80=94 Benjamin

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