3v4l.org

run code in 500+ PHP versions simultaneously
<?php class CarCollection {} class CarService { public function getCars(&$collection) { $collection = new CarCollection("foo"); } } $service = new CarService(); $collection = new StdClass; echo get_class($collection) . PHP_EOL; $service->getCars($collection); echo get_class($collection) . PHP_EOL;
Output for 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 - 8.1.34, 8.2.0 - 8.2.31, 8.3.0 - 8.3.31, 8.4.1 - 8.4.22, 8.5.0 - 8.5.7
stdClass CarCollection
preferences:
109.54 ms | 1969 KiB | 4 Q