<?php

class Closures
{

    public static function create($methodName)
    {
        return function($thing) use ($methodName) {
            return $thing->{$methodName}();
        };
    }
}

class Thing
{

    public function __construct($value)
    {
        $this->value = $value;
    }

    public function getSomething()
    {
        return $this->value;
    }
}


$things = [new Thing(1), new Thing(2), new Thing (3)];

print_r(array_map(Closures::create('getSomething'), $things));