3v4l.org

run code in 200+ php & hhvm versions
Bugs & Features
<?php $arr = array(); var_dump($arr["lol"]++,$arr["lol"]);
Output for 5.3.0 - 7.2.0
Notice: Undefined index: lol in /in/CsDJi on line 5 NULL int(1)
Output for 4.3.0 - 5.2.17
Notice: Undefined index: lol in /in/CsDJi on line 5 NULL int(1)