3v4l.org

run code in 200+ php & hhvm versions
Bugs & Features
<?php declare(strict_types=1); function hello(int $v = null){ var_dump($v); } hello(); hello(1); hello(null);
based on a4VLR
Output for 7.0.0 - 7.2.0
NULL int(1) NULL
Output for 5.3.18 - 5.6.28
Warning: Unsupported declare 'strict_types' in /in/WBpLb on line 2 NULL Catchable fatal error: Argument 1 passed to hello() must be an instance of int, integer given, called in /in/WBpLb on line 8 and defined in /in/WBpLb on line 4
Process exited with code 255.