3v4l.org

run code in 300+ PHP versions simultaneously
<?php class A { public function __construct() { } public static function init() { $instance = new static(); $instance->doStuff(); } protected function doStuff() { echo get_class($this); } } class B extends A { } B::init();
Output for 7.2.0 - 7.2.34, 7.3.0 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30, 8.1.0 - 8.1.34, 8.2.0 - 8.2.30, 8.3.0 - 8.3.30, 8.4.1 - 8.4.17, 8.5.0 - 8.5.2
B

preferences:
53.12 ms | 407 KiB | 5 Q