Thank you for your suggestions. I added two remaining modes and I think it's complete now.
I changed the names to `PHP_ROUND_CEILING` and `PHP_ROUND_FLOOR` to be consisted with rounding modes in number_format() function. I'm not sure about `PHP_TOWARD_ZERO` and 'PHP_AWAY_FROM_ZERO` as in there it's `ROUND_DOWN` and `ROUND_UP`, which I also find too vague. However, I could find names UP and DOWN in other documentations. And sadly it refers to away from zero and toward zero, so there is big mismatch in existing naming. https://developer.apple.com/documentation/foundation/numberformatter/roundingmode/down https://docs.oracle.com/en/java/javase/20/docs/api/java.base/java/math/RoundingMode.html Kind regards, Jorg <https://developer.apple.com/documentation/foundation/numberformatter/roundingmode/down>
