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run code in 200+ php & hhvm versions
Bugs & Features
<?php $arr = array(); echo $arr["hi"];
Output for 5.3.0 - 5.6.38, hhvm-3.10.1 - 3.15.4, hhvm-3.18.4 - 3.21.3, 7.0.0 - 7.2.11
Notice: Undefined index: hi in /in/IAm9d on line 4
Output for hhvm-3.17.3, hhvm-3.22.0
Notice: Undefined index: hi in /in/IAm9d on line -1
Output for 4.3.0 - 5.2.17
Notice: Undefined index: hi in /in/IAm9d on line 4