将值从数组传递给对象？ - PHP

class Person {
    public $name;
    public $age;
}

$array = array(
    'name' => 'John Doe',
    'age' => 30
);

$person = new Person();
extract($array, EXTR_OVERWRITE);
$person->name = $name;
$person->age = $age;

class Calculator {
    public function add($a, $b) {
        return $a + $b;
    }

    public function multiply($a, $b) {
        return $a * $b;
    }
}

$array = array(
    'add' => array(1, 2),
    'multiply' => array(3, 4)
);

$calculator = new Calculator();

foreach ($array as $method => $args) {
    $result = call_user_func_array(array($calculator, $method), $args);
    echo "Result of $method: $result\n";
}