3v4l.org

run code in 300+ PHP versions simultaneously
<?php //declare(strict_types=1); function foo(int $num) { echo ($num . PHP_EOL); } foo('42');
Output for 7.3.0 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30, 8.1.0 - 8.1.27, 8.2.0 - 8.2.17, 8.3.0 - 8.3.4
42

preferences:
170.19 ms | 402 KiB | 146 Q