run code in 200+ php & hhvm versions
Bugs & Features
<?php $c = ''; $f = ''; $l = '1'; $fullName = !empty($f) && !empty($l); if (empty($c) && !$fullName) { echo 'error'; } else { echo 'good'; }
based on O6uvp

Here you find the average performance (time & memory) of each version. A grayed out version indicates it didn't complete successfully (based on exit-code).
Note: hhvm uses a JIT which only kicks in after a few runs. Since we run scripts only once, hhvm always runs slower.

VersionSystem time (s)User time (s)Memory (MiB)