3v4l.org

run code in 200+ php & hhvm versions
Bugs & Features
<?php function add(int $a, int $b) { return $a + $b; } echo(add(3, 5));
Output for 7.0.0 - 7.2.0
8
Output for 5.3.20 - 5.6.28
Catchable fatal error: Argument 1 passed to add() must be an instance of int, integer given, called in /in/9qoKC on line 6 and defined in /in/9qoKC on line 3
Process exited with code 255.