run code in 200+ php & hhvm versions
Bugs & Features
<?php class Foo { private $bar; private $file; public __construct($fileName) { $this->bar = 'foobar'; $this->file = $fileName; } // Some more code hereā€¦ public __toString() { return file_get_contents($this->file); } } ?>

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)