3v4l.org

run code in 300+ PHP versions simultaneously
<?php error_reporting(E_ALL | E_STRICT); abstract class a { public static $hoge; public static function aa() { static::$hoge = new static; } } class b extends a { } b::aa(); var_dump(a::$hoge, b::$hoge);

preferences:
33.96 ms | 402 KiB | 5 Q