PHP generate order number

 function createOrderNo()
    {
    
        try {
    

            $order_no =
                date('d')
                . random_int(0, 9)
                . date('m')
                . random_int(0, 9)
                . date('y')
                . random_int(0, 9)
                . date('i')
                . random_int(0, 9)
                . date('H')
                . random_int(0, 9)
                . date('s')
                . random_int(0, 9);

            $msg = 'success';
        } catch (\Exception $e) {
    
            $order_no = '';
            $msg      = $e->getMessage();
        }
        if (empty($order_no)) {
    
            new  Exception($msg);
        }

        return $order_no;
    }