3v4l.org

run code in 150+ php & hhvm versions
Bugs & Features
<?php $color = array(4 => 'white', 6 => 'green', 11=> 'red'); echo $color[0];
Output for 5.3.0 - 7.1.0
Notice: Undefined offset: 0 in /in/C0HAc on line 4
Output for 4.3.0 - 5.2.17
Notice: Undefined offset: 0 in /in/C0HAc on line 4