3v4l.org

run code in 150+ php & hhvm versions
Bugs & Features
<?php $v = array(5, 2, 5, 15, 51); $i = 0; while ($v[$i]) { echo $v[$i]; $i++; }
Output for 5.3.0 - 5.6.28, 7.0.0 - 7.1.0
5251551 Notice: Undefined offset: 5 in /in/PIPpU on line 4
Output for hhvm-3.10.0 - 3.13.2
5251551 Notice: Undefined index: 5 in /in/PIPpU on line 4
Output for 4.3.0 - 5.2.17
5251551 Notice: Undefined offset: 5 in /in/PIPpU on line 4