Online PHP editor | output for mhc82

<?php function struct(string $name, array $class) { $class = json_encode($class); define($name, $class); } function create($class) { $object = (array) json_decode($class); return $object; } function call(array &$class, string $member, ...$args) { if(!isset($class[$member])) exit($member.' is not a member of the class.'); else { if(!isset($args[0])) call_user_func([$class, $member], $class); else call_user_func([$class, $member], $class, $args); } } $obj = [ 'foo' => function (&$this) { echo('Hello World!'); } ] call($obj, 'foo');