3v4l.org

run code in 300+ PHP versions simultaneously
<?php class ParentClass { public function __construct($a, $b, $c, $d = null) { print 'Parent: ' . $a . $b . $c . PHP_EOL; } } class ChildClass extends ParentClass { public function __construct(...$args) { parent::__construct(...$args); } } $child = new ChildClass(1, 2, 3);
Output for 5.6.0 - 5.6.40, 7.0.0 - 7.0.33, 7.1.0 - 7.1.33, 7.2.0 - 7.2.34, 7.3.0 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30, 8.1.0 - 8.1.31, 8.2.0 - 8.2.26, 8.3.0 - 8.3.15, 8.4.1 - 8.4.2
Parent: 123
preferences:
82.24 ms | 408 KiB | 5 Q