3v4l.org

run code in 150+ php & hhvm versions
Bugs & Features
<?php $a = 'foo'; $b = 'bar'; $c = 'qux'; $d = $foo . $bar . $qux;
based on 91Ge0
Output for 5.0.4 - 5.0.5, 7.0.0 - 7.1.0
Notice: Undefined variable: foo in /in/GZbdk on line 6 Notice: Undefined variable: bar in /in/GZbdk on line 6 Notice: Undefined variable: qux in /in/GZbdk on line 6
Output for 5.1.0 - 5.6.28, hhvm-3.10.0 - 3.12.0
Notice: Undefined variable: bar in /in/GZbdk on line 6 Notice: Undefined variable: foo in /in/GZbdk on line 6 Notice: Undefined variable: qux in /in/GZbdk on line 6
Output for 4.3.0 - 5.0.3
Notice: Undefined variable: foo in /in/GZbdk on line 6 Notice: Undefined variable: bar in /in/GZbdk on line 6 Notice: Undefined variable: qux in /in/GZbdk on line 6