run code in 200+ php & hhvm versions
Bugs & Features
<?php months = {"January", "February", "March", "April", "May", "june", "July", "August", "September", "October", "November", "December"}; for (i=0; i < 12; i++) { echo date('F', strtotime(months[i])); } ?>

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)