<?php

class Customer {
    private $_name;
    private $_rentals = [];

    public function __construct($name) {
        $this->_name = $name ?? "Guest";
    }

    public function addRental(Rental $arg) {
        $this->_rentals[] = $arg;
    }

    public function getName() {
        return $this->_name;
    }
}

?>