pal

<?phpclass Foo {    function __construct()    {        $this->bar = new Bar($this);    }    function __destruct()    {        unset($this->bar);    }}class Bar {    function _construct($foo = null)    {        $this->foo = $foo;    }}while (true) {    $foo = new Foo();    $foo->__destruct();    unset($foo);    echo number_format(memory_get_usage()) . "\\n";}?>