run code in 200+ php & hhvm versions
Bugs & Features
<?php class Person { public static $name; public static function setName($name) { $self::name = $name; } } class Student extends Person { public static function showName() { echo $self::name; } } $person = new Person(); $person::setName("Daan"); $student = new Student(); $student::setName('Daan'); $student::showName();

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)