3v4l.org

run code in 150+ php & hhvm versions
Bugs & Features
<?php similar_text('testingblah','t',$t); echo $t;
Output for 4.3.0 - 5.6.28, 7.0.0 - 7.1.0
16.666666666667
Output for hhvm-3.12.0
16.666666030884
Output for hhvm-3.10.0

Process exited with code 153.