3v4l.org

run code in 150+ php & hhvm versions
Bugs & Features
<?php if(isset($a)) { echo 'foo'; } if($a) { echo 'bar'; }
Output for 5.0.4 - 7.1.0
Notice: Undefined variable: a in /in/tT8lI on line 7
Output for 4.3.0 - 5.0.3
Notice: Undefined variable: a in /in/tT8lI on line 7