3v4l.org

run code in 200+ php & hhvm versions
Bugs & Features
<?php function foo($a, array $b = null, array $c = null) { var_dump(func_get_args()); } foo(1, [], []); foo(1); foo(1, null, null);
Output for 5.6.0 - 5.6.30, hhvm-3.18.5 - 3.22.0, 7.0.0 - 7.3.0beta1
array(3) { [0]=> int(1) [1]=> array(0) { } [2]=> array(0) { } } array(1) { [0]=> int(1) } array(3) { [0]=> int(1) [1]=> NULL [2]=> NULL }