3v4l.org

run code in 200+ php & hhvm versions
Bugs & Features
<?php echo(is_numeric('4')); ?>
based on WP8MP
Output for 5.6.0 - 5.6.38, hhvm-3.17.3 - 3.22.0, 7.0.0 - 7.3.0rc4
1
Output for hhvm-3.12.14 - 3.15.4

Process exited with code 137.