3v4l.org

run code in 300+ PHP versions simultaneously
<?php error_reporting(E_ALL); class Fluent { public function __construct($a = null) { // New signature. } } class ChildFluent extends Fluent { public function __construct($a = [], $b = 'strng'){ // Old signature. } } $child = new ChildFluent;
Output for 7.0.0 - 7.0.20, 7.1.0 - 7.1.20, 7.2.0 - 7.2.33, 7.3.16 - 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

preferences:
146.76 ms | 403 KiB | 170 Q