3v4l.org

run code in 200+ php & hhvm versions
Bugs & Features
<?php $res = "a:1:{s:7:\"'allow'\";s:1:\"1\";}"; $res = unserialize($res); echo $res['allow'];
Output for 5.3.0 - 7.2.0
Notice: Undefined index: allow in /in/bJf8o on line 5
Output for 4.3.0 - 5.2.17
Notice: Undefined index: allow in /in/bJf8o on line 5