Function as array value

Question

I can\'t seem to find anything of this, and was wondering if it\'s possible to store a function or function reference as a value for an array element. For e.g.

Answer 1

Yes, you can:

$array = array(
    'func' => function($var) { return $var * 2; },
);
var_dump($array['func'](2));

This does, of course, require PHP anonymous function support, which arrived with PHP version 5.3.0. This is going to leave you with quite unreadable code though.