3v4l.org

run code in 200+ php & hhvm versions
Bugs & Features
<?php if ($foo): ?> <meta property="foo" url="<?= $url; ?>"> <?php else: ?> <p>something else</p> <?php endif; ?>
Output for 5.6.0 - 5.6.30, hhvm-3.18.5 - 3.21.3, 7.0.0 - 7.3.0rc2
Notice: Undefined variable: foo in /in/nFSl7 on line 1 <p>something else</p>
Output for hhvm-3.22.0

Process exited with code 137.