Dima Pozdnyakov

class City
{
    private $name;
    private $people = [];

    public function setName($vaule)
    {
        $this->name = $vaule;
    }

    public function getName()
    {
        return $this->name;
    }

    public function addPerson($person)
    {
        $this->people = $person;
    }

    public function getPeople()
    {
        $result = [];

        foreach ($this->people as $person) {
            $result[] = $person->getName();

        }
        
        return $result;
    }
}


class Person
{
    private $name;

    public function setName($vaule)
    {
        $this->name = $vaule;
    }

    public function getName()
    {
        return $this->name;
    }

}

$person = new Person();
$person->setName('Misha');


$person2 = new Person();
$person2->setName('Misha2');


$person3 = new Person();
$person3->setName('Misha3');


$Moscow = new City();
$Moscow->setName('Moscow');
echo $Moscow->getName() . '<br>';
$Moscow->addPerson([$person, $person2, $person3]);
print_r($Moscow->getPeople());

$("#FormControlSelectSize").append(`<option>${$("input").val()}</option>`);