3v4l.org

run code in 150+ php & hhvm versions
Bugs & Features
<?php $var = 'last'; $var[strlen($var) - 1] = '';
Output for 7.1.0
Warning: Cannot assign an empty string to a string offset in /in/TfdV8 on line 4
Output for 4.3.0 - 5.6.28, hhvm-3.10.0 - 3.12.0, 7.0.0 - 7.0.14