php json_encode display with number not correct from array

Question

This is my array

$data['myarray'] = ["1" => 1.2, "10" => 0.911, "50" => 0.811, "100" => 0.37];

if using json_encode it will display like json_encode($data['myarray']

{"1":{"1":1.2,"10":0.91100000000000003,"50":0.81100000000000005,"100":0.37}}

I don't understand why my var has change to other number

This the Output for 7.1.25 - 7.3.0 `{"1":1.2,"10":0.911,"50":0.811,"100":0.37}`, Demo : https://3v4l.org/Es4IP#output — A l w a y s S u n n y, Jan 06 '19 at 16:12
Yes, I have tested in https://ideone.com/bIqFDR working normal. I have upgrade to 7.26 but same issue. I don't known what's error — Thoman, Jan 06 '19 at 16:13

score 0 · Accepted Answer · answered Jan 06 '19 at 18:10

0

add this config

ini_set('serialize_precision', 14); ini_set('precision', 14); This is issue from php 7.1

answered Jan 06 '19 at 18:10

Thoman

1 Answers1