3v4l.org

run code in 200+ php & hhvm versions
Bugs & Features
<?php $b = 3; $x = [ 2 <=['-']=> $b]; var_dump($x);
based on DfHL8
Output for 5.6.0 - 5.6.30, hhvm-3.18.5 - 3.22.0, 7.1.0 - 7.3.0beta1
array(1) { [1]=> int(3) }