3v4l.org

run code in 150+ php & hhvm versions
Bugs & Features
<?php for($i=0;$i<100000;$i++) $tmp = substr('hi', 0, 1);
Output for 4.3.0 - 5.6.28, hhvm-3.10.0 - 3.12.0, 7.0.0 - 7.1.0