3v4l.org

run code in 200+ php & hhvm versions
Bugs & Features
<?php $a=false; echo $a?"a":b;
Output for 7.2.0 - 7.2.6
Warning: Use of undefined constant b - assumed 'b' (this will throw an Error in a future version of PHP) in /in/Xf3fJ on line 4 b
Output for 4.3.0 - 7.1.20
Notice: Use of undefined constant b - assumed 'b' in /in/Xf3fJ on line 4 b