run code in 200+ php & hhvm versions
Bugs & Features
<?php usort($2dArray, function($a, $b) { return strnatcmp($a["username"], $b["username"]); });
based on AHgkN

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)