3v4l.org

run code in 200+ php & hhvm versions
Bugs & Features
<?php $array = [123, 456, 789]; print_r(json_encode($array));
based on SqVhq
Output for 5.6.30, hhvm-3.18.5 - 3.22.0, 7.0.30 - 7.3.0alpha1
[123,456,789]