3v4l.org

run code in 200+ php & hhvm versions
Bugs & Features
<?php $array = [0 => 'fire', 1 => 'flood']; echo (json_encode($array));
based on A0t4N
Output for 5.6.0 - 5.6.30, hhvm-3.15.4, 7.0.0 - 7.2.6
["fire","flood"]