HELP! regarding variable scope in a library I created

[eluser]danmontgomery[/eluser]

Code:

class Llib {
    var $myArray = array();

    function set_item($item, $value) {
        $this->myArray[$item] = $value;
    }

    function get_item($item) {
        return $this->myArray[$item];
    }
}

// ...

$this->load->library('llib');
$this->llib->set_item('foo','bar');
echo $this->llib->get_item('foo'); // bar