How do I immediately execute an anonymous function in PHP?

Question

In JavaScript, you can define anonymous functions that are executed immediately:

(function () { /* do something */ })()

Can you do somethin

Answer 1

I tried it out this way, but it's more verbose than the top answer by using any operator (or function) that allows you to define the function first:

    $value = $hack == ($hack = function(){
            // just a hack way of executing an anonymous function
            return array(0, 1, 2, 3);                
    }) ? $hack() : $hack();