3v4l.org

run code in 200+ php & hhvm versions
Bugs & Features
<?php $a = array(1=>'a', 2=>'b', 3=>'c'); echo $a[2][3];
Output for 5.2.10 - 7.2.0
Notice: Uninitialized string offset: 3 in /in/BGcE2 on line 3
Output for 4.3.0 - 5.2.9
Notice: Uninitialized string offset: 3 in /in/BGcE2 on line 3