3v4l.org

run code in 200+ php & hhvm versions
Bugs & Features
<?php function foo() { return function() { echo 'Hello, World!'; }; } foo()();
based on 56sYq
Output for hhvm-3.18.5 - 3.22.0, 7.0.30 - 7.3.0beta1
Hello, World!
Output for 5.6.30
Parse error: syntax error, unexpected '(' in /in/eh5Nl on line 11
Process exited with code 255.