3v4l.org

run code in 200+ php & hhvm versions
Bugs & Features
<?php $foo = 'Fuck it'; $foo = substr_replace($foo, 'S', 0, 1); echo $foo;
based on dtk3c
Output for 5.6.0 - 5.6.30, hhvm-3.15.4, 7.0.0 - 7.3.0rc3
Suck it