3v4l.org

run code in 200+ php & hhvm versions
Bugs & Features
<?php class Test { public function testa(array $a = NULL) { var_dump($a); } } $a = new Test(); $a->testa();
based on 2utDF
Output for 5.6.0 - 5.6.30, hhvm-3.15.4, 7.0.0 - 7.3.1
NULL