Manipulating Class variables

Hi guys,

Hope someone can give me a hand here. Let's imagine we have a class like this one:

class myClass() {
    var $msg = "Hello world";

    function someFunction() {
        // do some random stuff here and then...
        $this->msg = $new_msg; // ... change var $msg to what we got in this function...
    }

    function yetAnotherFunction() {
        echo $this->msg;
    }
}

$t = new myClass();
$t->someFunction();
$t->yetAnotherFunction(); // this outputs "Hello world", when it should be the new message

PHP:

... any ideas? What I'm I doing wrong?

UPDATE:

Nevermind. Found out what was wrong and fixed it.

 

Because your code looks just fine.