3v4l.org

run code in 300+ PHP versions simultaneously
<?php class Foo { public static $baz; } class Bar extends Foo { public static $baz; } Foo::$baz = '2'; Bar::$baz = '1'; var_dump(Foo::$baz, Bar::$baz);
Output for 8.1.32, 8.2.0 - 8.2.29, 8.3.0 - 8.3.27, 8.4.1 - 8.4.14
string(1) "2" string(1) "1"
preferences:
62.35 ms | 406 KiB | 5 Q