3v4l.org

run code in 500+ PHP versions simultaneously
<?php declare(strict_types = 1); class Dvach { public function allou (): void { echo $this->childProp; } } class Mailach extends Dvach { protected int $childProp = 100500; } $o = new Mailach(); $o->allou();
Output for 8.1.0 - 8.1.34, 8.2.0 - 8.2.31, 8.3.0 - 8.3.31, 8.4.1 - 8.4.22, 8.5.0 - 8.5.7
100500

preferences:
72.22 ms | 1008 KiB | 4 Q