Call PHP anonymous function that is an object property. More information: http://eric.tumblr.com/post/72481137519/call-php-closure-that-is-an-object-property

invoke.php

$person = (object) array(
	"name" => "Eric",
	"location" => "SF",
	"sayHello" => function () {
		return "Hello!";
	}
);

// does not work with anonymous functions in PHP
var_dump($person->sayHello());

// this works but is ugly
$sayHello = $person->sayHello;
var_dump($sayHello());

// this works as a one-liner but is still ugly
var_dump(call_user_func($person->sayHello));

// this works as a one-liner too... still ugly
var_dump($person->sayHello->__invoke());