3v4l.org

run code in 200+ php & hhvm versions
Bugs & Features
<?php $array =['fire']; print_r(json_encode($array));
based on mV4ad
Output for 5.6.0 - 5.6.38, hhvm-3.15.4 - 3.22.0, 7.0.0 - 7.3.0rc4
["fire"]