3v4l.org

run code in 200+ php & hhvm versions
Bugs & Features
<?php $array = array(); $foo = $array['foo'] || 'default';
Output for 5.3.0 - 7.2.0
Notice: Undefined index: foo in /in/s3CiT on line 4
Output for 4.3.0 - 5.2.17
Notice: Undefined index: foo in /in/s3CiT on line 4