3v4l.org

run code in 300+ PHP versions simultaneously
<?php class HelloWorld { public int $aaa = 5; /** * @return HelloWorld|null */ public function get(): ?HelloWorld { return null; } public function sayHello(): int { return $this->get()->aaa ?? 6; } } (new HelloWorld())->sayHello();
Output for 7.4.0 - 7.4.33, 8.0.1 - 8.0.30, 8.1.0 - 8.1.34, 8.2.0 - 8.2.30, 8.3.0 - 8.3.30, 8.4.1 - 8.4.18, 8.5.0 - 8.5.3

preferences:
47.97 ms | 1236 KiB | 4 Q