function check_sign_parameters()
{
if ($this->parameters["nonce_str"] == null || $this->parameters["mch_billno"] == null || $this->parameters["mch_id"] == null || $this->parameters["wxappid"] == null || $this->parameters["send_name"] == null || $this->parameters["re_openid"] == null || $this->parameters["total_amount"] == null || $this->parameters["total_num"] == null || $this->parameters["wishing"] == null || $this->parameters["client_ip"] == null || $this->parameters["act_name"] == null || $this->parameters["remark"] == null) {
return false;
}
return true;
}