Php 更新查询代码点火器消息

我正在运行更新查询以更新图书馆中的图书记录。现在的问题是，如何在更新成功后打印成功消息而不是更新成功
更新后，它将在空白页上重定向

我的模型是

function update_book($data, $id)
{
  $this->load->database();
  $this->db->where("id", $id);
  $query =$this->db->update("books", $data);

  if ($this->db->affected_rows() > 0)
  {
    $response = array(
           'message' => "User edited successfully",
           'status' => true
           );
  }
  else
    $response = array(
         'message' => "There is nothing to update",
         'status' => false
        );

  return $response;
}

控制器为：

public function edit_info()
{
  $id = $this->input->post('id');
  $book_name = $this->input->post('book_name');
  $book_author = $this->input->post('book_author');
  $book_publisher = $this->input->post('book_publisher');
  $book_pages = $this->input->post('book_pages');
  $book_price = $this->input->post('book_price');
  $book_stock = $this->input->post('book_stock');

  $book_data = array(  
            'id'=>$id,
            'book_name'=>$book_name,
            'book_author'=>$book_author,
            'book_publisher'=>$book_publisher,
            'book_pages'=>$book_pages,
            'book_price'=>$book_price,
            'book_stock'=>$book_stock
          );

  $this->load->model('Book');
  $result = $this->Book->update_book($book_data, $id);

  if(in_array(1, $result))
  {
    $this->session->set_flash-data('MSG', 'Book Record Updated!!');
  }
  else
  {
    echo "FALSE";
  }
}

像这样试试

型号

function update_book($data, $id)
{
  $this->load->database();
  $this->db->where("id", $id)
  return $this->db->update("books", $data);
}

控制器

 $this->load->model('Book');
 $result = $this->Book->update_book($book_data, $id);
 if($result){

     $response = array(
       'message' => "User edited successfully",
       'status' => true
       );
  }else{

     $response = array(
     'message' => "There is nothing to update",
     'status' => false
    );
  }

---

在重定向blank页面

echo$this->session->flashdata（'MSG'）
请告诉我们您的错误，您的问题不清楚
if($result['status'] == true){
    echo $result['message'];
    $this->session->set_flashdata('MSG', 'Book Record Updated!!');
}
else{
    echo $result['message'];
}