3v4l.org

run code in 200+ php & hhvm versions
Bugs & Features
<?php $a = new stdClass(); var_dump(is_null($a->a));
Output for 5.2.6 - 7.2.0
Notice: Undefined property: stdClass::$a in /in/oRlWX on line 3 bool(true)
Output for 5.0.0 - 5.2.5
Notice: Undefined property: stdClass::$a in /in/oRlWX on line 3 bool(true)
Output for 4.3.0 - 4.4.9
Notice: Undefined property: a in /in/oRlWX on line 3 bool(true)