run code in 200+ php & hhvm versions
Bugs & Features
<?php $count = 138; $interval = floor($count / 5); $images = range(1, $count, $interval); $pattern = '{' . implode(',', $images) . '}'; print_r();
based on h4B5G

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)