3v4l.org

run code in 200+ php & hhvm versions
Bugs & Features
<?php error_reporting(E_ALL); class Fluent { public function __construct($a = null) { // New signature. } } class ChildFluent extends Fluent { public function __construct($a = []){ // Old signature. } }
Output for 5.6.0 - 5.6.30, hhvm-3.15.4, 7.0.0 - 7.2.0