3v4l.org

run code in 200+ php & hhvm versions
Bugs & Features
<?php #array_flip([1,2,3,4,5,6,7,8,9,0]); array_fill_keys([1,2,3,4,5,6,7,8,9,0],true);
based on XfLh8
Output for 5.6.0 - 5.6.30, hhvm-3.12.14 - 3.17.3, 7.0.0 - 7.3.0alpha1