<?php
interface iNamed {}
class Person implements iNamed {}
class Dog implements iNamed {}

$create_name = function (string $first_name, string $second_name) {
    $this->first_name = $first_name;
    $this->second_name = $second_name;
    return $this;
};

$create_person = $create_name->bindTo(new Person);
$create_dog = $create_name->bindTo(new Dog);


$harry = $create_dog('harry', 'smith');
$max = $create_person('max', 'power');


$full_name = function (iNamed $nameable) {
    return $nameable->first_name . ' ' . $nameable->second_name;
};

var_dump($full_name($max));