Objects as function arguments

[Fargoth]

Is it possible to pass an object as an argument in a function? I have two classes and one class has a method which needs to be passed an instance of the other class for example:

class A {
    var name;
}

class B {
    function something($obj) {
        echo($obj->name);
    }
}

$a = new A;
$b = new B;
$a->name="testing";
$b->something($a);

This won't work.

[bernouli]

class A {
    var $name;
}

class B {
    function something(&$obj) {
        echo($obj->name);
    }
}

$a = new A;
$b = new B;
$a->name="testing";
$b->something($a);