3v4l.org

run code in 300+ PHP versions simultaneously
<?php interface bird { function setKind(string $type); function getKind(); function getLocation(); function setLocation(location $location); function flyTo(location $location); function setMelody(string $melody); function singMelody(); // вывод зависит от kind function killBird(); function cloneBird(int $count); }
Output for 5.5.0 - 5.5.38, 5.6.0 - 5.6.40, 7.0.0 - 7.0.33, 7.1.0 - 7.1.33, 7.2.0 - 7.2.33, 7.3.0 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30, 8.1.0 - 8.1.28, 8.2.0 - 8.2.18, 8.3.0 - 8.3.7
preferences:
191.02 ms | 404 KiB | 330 Q