3v4l.org

run code in 300+ PHP versions simultaneously
<?php class Foo { public int $prop = 0; public const HOGE = 'hoge'; } class Bar extends Foo { public int $prop = 10; public const HOGE = 'hoge_revised'; public function dump() { var_dump($this->prop); var_dump(self::HOGE); } } (new Bar)->dump();

preferences:
25.02 ms | 404 KiB | 5 Q