Best way to create an empty object in JSON with PHP?

Question

To create an empty JSON object I do usually use:

json_encode((object) null);

casting null to an object works, but is there any other prefer

Answer 1

I always do (Object)[];, like:

$json = (Object)[]; // [] could also be array()

... play around with it in PHP ...

$json = json_encode($json);

... now it's real JSON ...