3v4l.org

run code in 150+ php & hhvm versions
Bugs & Features
<?php $array = array("all","half","abc",1); $array2 = array(); $array2[$array] = 54; ?>
Output for 4.3.0 - 5.6.28, hhvm-3.12.0, 7.0.0 - 7.1.0
Warning: Illegal offset type in /in/VrvZO on line 5
Output for hhvm-3.10.0
Warning: Illegal offset type in /in/VrvZO on line 8