3v4l.org

run code in 200+ php & hhvm versions
Bugs & Features
<?php print "a";
Output for 5.3.0 - 5.6.30, hhvm-3.10.1 - 3.15.4, 7.0.0 - 7.2.0
a
Output for hhvm-3.17.3

Process exited with code 137.