issue with inheriting private property from abstract class in php5rc3

if anyone can, would you please explain why the below code does what it does? I would expect $this->test in TestInstance to refer to the inherited $test from Test. Using php5RC3. Thanks. <?php abstract class Test {

    private $test;
    abstract public function addToTest($i);

} class TestInstance extends Test {

    public function __construct() {
        $this->test = 0;
    }

    public function addToTest($i) {
        $this->test += $i;
    }

} $t = new TestInstance(); $t->addToTest(3); var_dump($t); // test var SHOULD be private echo "private test (shouldn't be able to access it directly, but i can): ".$t->test."\n\n"; /* output ------------------------------- object(TestInstance)#1 (2) { ["test:private"]=> NULL ["test"]=> int(3) } private test (shouldn't be able to access it directly, but i can): 3 */ ?>