3v4l.org

run code in 150+ php & hhvm versions
Bugs & Features
<?php error_reporting(E_ALL | E_STRICT); $foo = array(); unset($foo['foo']['bar']);
Output for 5.0.0 - 7.1.0
Output for 4.3.0 - 4.4.9
<br /> <b>Notice</b>: Undefined index: foo in <b>/in/1M82v</b> on line <b>6</b><br />