3v4l.org

run code in 150+ php & hhvm versions
Bugs & Features
<?php $array = array ('3' => 'a', '1b' => 'b', 'c', 'd'); echo $array[1];
Output for 5.3.0 - 5.6.28, 7.0.0 - 7.1.0
Notice: Undefined offset: 1 in /in/XPKi3 on line 3
Output for hhvm-3.10.0 - 3.12.0
Notice: Undefined index: 1 in /in/XPKi3 on line 3
Output for 4.3.0 - 5.2.17
Notice: Undefined offset: 1 in /in/XPKi3 on line 3