    public function deleteItem(){
        $login_user = $this->checkLogin();
        $this->checkAdmin();
        $item_id = I("item_id/d");
        $return = D("Item")->soft_delete_item($item_id);
        if (!$return) {
            $this->sendError(10101);
        }else{
            $this->sendResult($return);
        }
    }
The web application does not, or can not, sufficiently verify whether a well-formed, valid, consistent request was intentionally provided by the user who submitted the request.