PHP类属性可以等于另一个类属性吗？

class MyClass {
    public $property1;
    public $property2;

    public function __construct($value1, $value2) {
        $this->property1 = $value1;
        $this->property2 = $value2;
    }
}

$obj = new MyClass("value1", "value2");

class MyClass {
    public $property1;
    public $property2;

    public function setProperties($value1, $value2) {
        $this->property1 = $value1;
        $this->property2 = $value2;
    }
}

$obj = new MyClass();
$obj->setProperties("value1", "value2");