3v4l.org

run code in 200+ php & hhvm versions
Bugs & Features
<?php class Foo { function Foo(){} }; $a = null; $f = new Foo($a = 123); var_dump($a);
Output for 7.0.0 - 7.2.6
Deprecated: Methods with the same name as their class will not be constructors in a future version of PHP; Foo has a deprecated constructor in /in/64TDb on line 2 int(123)
Output for 4.3.0 - 5.6.28
int(123)