3v4l.org

run code in 150+ php & hhvm versions
Bugs & Features
<?php // Everything you enter here will be executed by our servers. Try it! var_dump(!!$err);
Output for 5.0.4 - 7.1.0
Notice: Undefined variable: err in /in/2vZDk on line 3 bool(false)
Output for 4.3.0 - 5.0.3
Notice: Undefined variable: err in /in/2vZDk on line 3 bool(false)