Arrays in Classes

I'm quite new at object-oriented programming in PHP. Here's what I want to do. I want to create a class of objects called "lists". The properties I want to have for list objects include:

        owner of the list
        number of items in the list
        the list itself

Each item in the list, of course, has several properties of their own: the date the item was added, the name of the item, and a link to the item. I figured that the list would be contained in an array of associative arrays... such as,

        item[0]["item"]="Palm Pilot"
        item[0]["dateAdded"]="2001-03-18"
        item[0]["link"]="http://www.palm.com"

The lists will be built from a database which contains information about users and the lists that they maintain. The database part I have down pat. Properties of the list objects can be retrieved like this, of course...

        $myList=new List($userID);
        $num=$myList->numItems;
        $name=$myList->listOwner;

What I'm wondering is, can I do something like this:

        for($i=0;$i<$num;$i++)
        $itemList[$i]["item"]=$myList->item[$i]["item"];

If so, how???