run code in 200+ php & hhvm versions
Bugs & Features
<?php class A { const MA_CONST = 1; public function get1() { return self::MA_CONST; } public function get2() { return static::MA_CONST; } } class B extends A { const MA_CONST = 2; } $o = new B(); var_dump($o->get1()); var_dump($o->get2()); var_dump(B::MA_CONST);

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)