3v4l.org

run code in 150+ php & hhvm versions
Bugs & Features
<?php echo hexdec('F'), '<br/>'; echo hexdec('10'), '<br/>'; echo hexdec('11'), '<br/>';
based on JDU4Z
Output for 4.3.0 - 5.6.28, hhvm-3.12.0, 7.0.0 - 7.1.0
15<br/>16<br/>17<br/>
Output for hhvm-3.10.0

Process exited with code 153.