Better handling of floats with json_encode

[tgeene]

Description

When using the function json_encode it will sometime lose all precision on floats being used as values. It would be nice if a new constant was added that handled similar to JSON_BIGINT_AS_STRING such as JSON_FLOAT_AS_STRING. I recommend this solution as I don't know if simply maintain precision would be possible given the underlying code of PHP.

[cmb69]

Well, you can set serialize_precision to some arbitrary large value, and this gives "more" precision: https://3v4l.org/cFLQcK. However, I don't see the point being precise about numbers which are just approximations.

[tgeene]

The problem I am trying to fixe is when submitting something like 0.46 as a value into json_encode and converts it to 0.460000000000000019984014443252817727625370025634765625. I am willing to be wrong here, but I think updating ini just to run this function seems like overkill.

[mvorisek]

serialize_precision should be set to -1 (default) which implies full precision but minimal length

I belive this issue can be closed.

[tgeene]

My team and I will look into potential ramifications of setting this ini option to -1, but I agree this does handle the problem in question.