3v4l.org

run code in 150+ php & hhvm versions
Bugs & Features
<?php $str = 'str1nk'; $size = strlen($str); echo $size; exit; for($i = $size; $i <= 0; $i--) echo $str{$i};
based on 8vmCh
Output for 4.3.0 - 5.6.28, hhvm-3.10.0 - 3.12.0, 7.0.0 - 7.1.0
6