在上传文件夹中存储图像时出错

Question

我的控制器主页.php

    <?php  
    defined('BASEPATH') OR exit('No direct script access allowed');  

    class Home extends CI_Controller {  

        public function __construct() 
        {
            parent::__construct();

            //load database libray manually
            $this->load->database();

            //load Model
            $this->load->model('Contact_model');

            // load form and url helpers
            $this->load->helper(array('form', 'url'));

            // load form_validation library
            $this->load->library('form_validation');
        }

         public function Latest_news()
        {  
            $this->form_validation->set_rules('first_content', 'First content', 'required');
            $this->form_validation->set_rules('second_content', 'Second content', 'required');
            $config['upload_path']   = './uploads/'; 
            $config['allowed_types'] = 'gif|jpg|png'; 
            $this->load->library('upload', $config);
            if (($this->form_validation->run() == FALSE )&&(!$this->upload->do_upload('filename')))
            {
                $this->load->view('Latest_news'); 
            }
            else
            {
                //insert
                $data = array();
                $data['first_content']=$this->input->post('first_content');
                $data['second_content']=$this->input->post('second_content');
                $data['filename']=$this->input->post('filename');  
                //Transfering data to Model
                $this->Contact_model->latest_news($data);
                //Redirecting to success page
                redirect(site_url('Home/Latest_news'));
            }
        }
    ?>

我的模型 Contact_model.php

    <?php
        class Contact_model extends CI_Model 
        {
            function latest_news($data)
            {
            //saving records
            $this->db->insert('latest_news', $data); 
            }

        }   
    ?>

Latest_news.php

    <?php echo form_open(); ?>
        <div style="padding-top:10%; padding-left:30%">
            <div>
                <textarea name="first_content" rows="4" cols="50"></textarea>
                <span><?php echo form_error("first_content");?></span>
            </div><br>
            <div>
                <textarea name="second_content" rows="4" cols="50"></textarea>
                <span><?php echo form_error("second_content");?></span>
            </div><br>
            <div>
                <input type="file" name="filename">
                <span><?php echo form_error("filename");?></span>
            </div><br>
          <button type="submit" class="btn btn-default">Submit</button>
        </div>
    </form>

我正在尝试将图像上传到数据库中并将该图像存储在一个名为上传的文件夹中，下面是我尝试使用的代码，图像名称存储在数据库中但它没有存储在文件夹中，我不知道我哪里出错了请任何人看看我的代码并给我打电话

Answer 1

希望对您有所帮助：

将FCPATH 用于您的$config 中的upload_path

你的Latest_news 方法应该是这样的：

public function Latest_news()
{  
    $this->form_validation->set_rules('first_content', 'First content', 'required');
    $this->form_validation->set_rules('second_content', 'Second content', 'required');

    if ($this->form_validation->run())
    {
        $config['upload_path']   = FCPATH.'uploads/'; 
        $config['allowed_types'] = 'gif|jpg|png'; 
        $this->load->library('upload', $config);

        if ( $this->upload->do_upload('filename') )
        {
            print_r($this->upload->data());die; 
            $data['first_content'] = $this->input->post('first_content');
            $data['second_content'] = $this->input->post('second_content');
            $data['filename'] = $this->upload->data('file_name');  

            //Transfering data to Model
            $this->Contact_model->latest_news($data);
            //Redirecting to success page
            redirect(site_url('Home/Latest_news'));     
        }
        else
        {
            $error = array('error' => $this->upload->display_errors());
            print_r($error);die;
        }
    }
    else
    {
          $this->load->view('Latest_news'); 

    }
} 

使用form_open_multipart() 而不是form_open()

你的表格应该是这样的：

 <?php echo form_open_multipart('Home/Latest_news'); ?>
        <div style="padding-top:10%; padding-left:30%">
            <div>
                <textarea name="first_content" rows="4" cols="50"></textarea>
                <span><?php echo form_error("first_content");?></span>
            </div><br>
            <div>
                <textarea name="second_content" rows="4" cols="50"></textarea>
                <span><?php echo form_error("second_content");?></span>
            </div><br>
            <div>
                <input type="file" name="filename">
                <span><?php echo form_error("filename");?></span>
            </div><br>
          <button type="submit" class="btn btn-default">Submit</button>
        </div>
    </form>

更多：https://www.codeigniter.com/user_guide/libraries/file_uploading.html