3v4l.org

run code in 150+ php & hhvm versions
Bugs & Features
<?php $userfile_name = null; $value = explode(".", $userfile_name); $file_ext = strtolower(array_pop($value)); echo $file_ext; ?>
Output for 4.3.0 - 5.6.28, hhvm-3.10.0 - 3.12.0, 7.0.0 - 7.1.0