3v4l.org

run code in 150+ php & hhvm versions
Bugs & Features
<?php $foo = 1; if($foo) { echo $bar; } /*/ if ($bar) { echo $foo; } // */
Output for 5.0.4 - 5.6.28, hhvm-3.10.0 - 3.13.2, 7.0.0 - 7.1.0
Notice: Undefined variable: bar in /in/7stup on line 5
Output for 4.3.0 - 5.0.3
Notice: Undefined variable: bar in /in/7stup on line 5