run code in 200+ php & hhvm versions
Bugs & Features
<?php for($i = 0xC4-3; $i <= 0xC4+3; ++$i){ for($k = 0; $k <= 0xff; ++$k){ $z = "%".sprintf("%02x", $i)."%".sprintf("%02x", $k); $x = mb_strtolower(urldecode($z)); echo $z." => ".$x."\n"; if($x=="i"){ echo $z." => ".$x." - find\n"; } } }
based on r7EMg

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)