3v4l.org

run code in 150+ php & hhvm versions
Bugs & Features
<?php $arr = array(1 => 'huhu'); var_dump(isset($arr[false]), $arr[false]);
Output for 5.5.0 - 5.6.28, 7.0.0 - 7.1.0
Notice: Undefined offset: 0 in /in/v0CMo on line 3 bool(false) NULL
Output for hhvm-3.10.0 - 3.12.0
Notice: Undefined index: in /in/v0CMo on line 3 bool(false) NULL
Output for 4.3.0 - 5.4.45
bool(false) NULL