3v4l.org

run code in 150+ php & hhvm versions
Bugs & Features
<?php $c[]='1'; $c[]='2'; $a= "-1"; $b= (int)$a; echo $c[$b];
Output for 5.3.0 - 7.1.0
Notice: Undefined offset: -1 in /in/q4Yed on line 6
Output for 4.3.0 - 5.2.17
Notice: Undefined offset: -1 in /in/q4Yed on line 6