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run code in 150+ php & hhvm versions
Bugs & Features
<?php $a = "72"; if(isset($a[3])) echo "YES"; else echo "NO";
Output for 4.3.3 - 5.6.28, hhvm-3.10.0 - 3.12.0, 7.0.0 - 7.1.0
NO
Output for 4.3.0 - 4.3.2
Notice: Uninitialized string offset: 3 in /in/NMsII on line 4 NO