public function _unlikeImg($id)
{
$mem = new Memcache();
$mem->connect("127.0.0.1", 11211);
$like = $mem->get("f_" . $_SESSION['USERID']);
$like[$id] = NULL;
$mem->set("f_" . $_SESSION['USERID'], $like, 0, 0);
$recommender = recommender::getInstance();
$recommender->set_rating($_SESSION['USERID'], $id, 0);
echo json_encode("true");
$this->model->Del_By_ImageId($id);
$img = new image();
$img->removefromfavor($id);
}
public function _test()
{
$recommender = recommender::getInstance();
$recommender->auto_test();
}