run code in 200+ php & hhvm versions
Bugs & Features
<?php function makeRandomPath($dir, $ext) { do { $path = $dir."/".genRandomString().".".$ext; } while(file_exists($path)); return $path; } echo makeRandomPath(); function makeRandomPathFromFilename($dir, $fn) { $ext = pathinfo($fn, PATHINFO_EXTENSION); return makeRandomPath($dir, $ext); } echo makeRandomPathFromFilename();
based on XsZ3D

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)