3v4l.org

run code in 150+ php & hhvm versions
Bugs & Features
<?php $resolution=array($res1=>array(728,210),$res2=>array(720,300)); $res=array($res1=>array(728,210),$res2=>array(720,300)); echo $res[$res1];
based on Z5NqX
Output for 5.4.0 - 5.6.28, 7.0.0 - 7.1.0
Notice: Undefined variable: res1 in /in/rZG55 on line 2 Notice: Undefined variable: res2 in /in/rZG55 on line 2 Notice: Undefined variable: res1 in /in/rZG55 on line 3 Notice: Undefined variable: res2 in /in/rZG55 on line 3 Notice: Undefined variable: res1 in /in/rZG55 on line 4 Notice: Array to string conversion in /in/rZG55 on line 4 Array
Output for hhvm-3.10.0 - 3.12.0
Notice: Undefined variable: res1 in /in/rZG55 on line 2 Notice: Undefined variable: res2 in /in/rZG55 on line 2 Notice: Undefined variable: res1 in /in/rZG55 on line 3 Notice: Undefined variable: res2 in /in/rZG55 on line 3 Notice: Array to string conversion in /in/rZG55 on line 4 Array
Output for 5.0.4 - 5.3.29
Notice: Undefined variable: res1 in /in/rZG55 on line 2 Notice: Undefined variable: res2 in /in/rZG55 on line 2 Notice: Undefined variable: res1 in /in/rZG55 on line 3 Notice: Undefined variable: res2 in /in/rZG55 on line 3 Notice: Undefined variable: res1 in /in/rZG55 on line 4 Array
Output for 4.3.0 - 5.0.3
Notice: Undefined variable: res1 in /in/rZG55 on line 2 Notice: Undefined variable: res2 in /in/rZG55 on line 2 Notice: Undefined variable: res1 in /in/rZG55 on line 3 Notice: Undefined variable: res2 in /in/rZG55 on line 3 Notice: Undefined variable: res1 in /in/rZG55 on line 4 Array