3v4l.org

run code in 200+ php & hhvm versions
Bugs & Features
<?php function add(int $a, int $b) { return $a + $b; } $a = 5; $b = 3; settype($a, "integer"); settype($b, "integer"); echo(add($a, $b));
based on PeXtf
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/s2PYc on line 10 and defined in /in/s2PYc on line 3
Process exited with code 255.