3v4l.org

run code in 150+ php & hhvm versions
Bugs & Features
<?php $a = array('1','3'); echo count($a); $c = count($a) - 1; echo $a[$c];
based on j2aK0
Output for 4.3.0 - 5.6.28, hhvm-3.10.0 - 3.12.0, 7.0.0 - 7.1.0
23