The following (https://3v4l.org/A2Tp6) is ok, it simply returns false:
$x = 1;
$x instanceof \stdClass;
The following (https://3v4l.org/IdSBu) gives a fatal error:
1 instanceof \stdclass;
t think this behavior is inconsistent, and we should consider changing it.
There are two options, but only one is BC.
- Let 1 instanceof \stdClass return false, instead of crashing. -> seems BC
- Let $x instanceof \stdClass crash, if $x is not an object. -> BC break.
So it seems the first would the option we should take.
This is also what hhvm does, according to https://3v4l.org/IdSBu.
