run code in 200+ php & hhvm versions
Bugs & Features
<?php $a = true; $b = true; $c = false; if($a == ($b && $c == 0)){ echo 1; }else{ echo 2; }
based on ZdnCc

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)