3v4l.org

run code in 300+ PHP versions simultaneously
<?php $data = '{"22":{"applied_discount_amount":13,"base_applied_discount_amount":13},"24":{"applied_discount_amount":35.1,"base_applied_discount_amount":35.1}}'; $di = json_decode($data, true); print_r(array_keys($di));
Output for 8.3.0 - 8.3.30, 8.4.1 - 8.4.18, 8.5.0 - 8.5.3
Array ( [0] => 22 [1] => 24 )

preferences:
53.6 ms | 406 KiB | 5 Q