3v4l.org

run code in 200+ php & hhvm versions
Bugs & Features
<?php var_dump($foo ?: $bar ?: null);
based on 35tvL
Output for 5.6.0 - 5.6.30, hhvm-3.12.14 - 3.17.3, 7.0.0 - 7.2.6
Notice: Undefined variable: foo in /in/fPnsU on line 3 Notice: Undefined variable: bar in /in/fPnsU on line 3 NULL