3v4l.org

run code in 200+ php & hhvm versions
Bugs & Features
<?php echo json_encode([1,2,3], JSON_FORCE_OBJECT);
based on E150U
Output for 5.6.0 - 5.6.30, hhvm-3.15.4, 7.0.0 - 7.3.0rc3
{"0":1,"1":2,"2":3}