3v4l.org

run code in 200+ php & hhvm versions
Bugs & Features
<?php function a(int $a = null) { var_dump($a); } a(1); a(null);
based on Pr0ci
Output for 7.0.0 - 7.3.0beta1
int(1) NULL
Output for 5.6.0 - 5.6.28
Catchable fatal error: Argument 1 passed to a() must be an instance of int, integer given, called in /in/3mnPP on line 8 and defined in /in/3mnPP on line 3
Process exited with code 255.