3v4l.org

run code in 150+ php & hhvm versions
Bugs & Features
<?php $string = "some string"; var_dump(substr($string, -3, 3));
Output for 4.3.0 - 5.6.28, hhvm-3.12.0, 7.0.0 - 7.1.0
string(3) "ing"
Output for hhvm-3.10.0

Process exited with code 153.