3v4l.org

run code in 200+ php & hhvm versions
Bugs & Features
<?php class foo { static $bar; } foo::$bar = function () { echo "Hello World"; }; (foo::$bar)();
based on 3dkOP
Output for 7.0.0 - 7.2.0
Hello World
Output for 5.4.0 - 5.6.28
Parse error: syntax error, unexpected '(' in /in/ghNUc on line 4
Process exited with code 255.