在代码中点燃多个图像更新

Question

我在代码点火器中上传多个图像相同的代码用于更新多个图像但在更新时我更改名称我不更改图像然后单击确定按钮名称是更新但图像丢失但我更改了仅更新的图像..为什么？

我的控制器

 function update_products() 
     { 
    $id = $this->input->post('id');
    $this->load->library('upload');
    $dataInfo = array();
    $files = $_FILES;
    $cpt = count($_FILES['userfile']['name']);
    for($i=0; $i<$cpt; $i++)
    {           
        $_FILES['userfile']['name']= $files['userfile']['name'][$i];
        $_FILES['userfile']['type']= $files['userfile']['type'][$i];
        $_FILES['userfile']['tmp_name']= $files['userfile']['tmp_name'][$i];
        $_FILES['userfile']['error']= $files['userfile']['error'][$i];
        $_FILES['userfile']['size']= $files['userfile']['size'][$i];    

        $this->upload->initialize($this->set_upload_options());
        $this->upload->do_upload();
       
           $dataInfo[] = $this->upload->data();

    }
   $data = array(
        
         'name' => $this->input->post('name'),
         'prod_image' => $dataInfo[0]['file_name'],
          'prod_image1' => $dataInfo[1]['file_name'],
          'prod_image2' => $dataInfo[2]['file_name'],
         'upadted_time' => date('Y-m-d H:i:s')  
      );
   
    $stock = array(
     'discount' => $this->input->post('discount'),
    );
                 $this->db->where('prod_id', $id);
                $this->db->update('tbl_products', $data);
             $this->db->where('prods_id', $id);
             $this->db->update('otc_product_discount', $stock);
        
                 $this->session->set_flashdata('msg','<div class="alert alert-success text-center">You are Successfully updated!</div>');
      redirect('index.php/admin/display_product_list');
                 
  }         
    }  

我的看法

 <label for="type">Product Image</label>
<img src="<?php echo base_url("./resources/images/products/");  if($row->prod_image) echo $row->prod_image; else echo "no-img.jpg"; ?>" alt="" height="50" width="50"/>
<input type="file" id="med_img" class="file_upload"  name="userfile[]" value="<?php  echo $row->prod_image; ?>" /> 

<label for="type">Product Image2</label>
<img src="<?php echo base_url("./resources/images/products/");  if($row->prod_image1) echo $row->prod_image1; else echo "no-img.jpg"; ?>" alt="" height="50" width="50"/>
<input type="file" id="med_img" class="file_upload"  name="userfile[]" value="<?php  echo $row->prod_image1; ?>" />
<label for="type">Product Image3</label>
<img src="<?php echo base_url("./resources/images/products/");  if($row->prod_image2) echo $row->prod_image2; else echo "no-img.jpg"; ?>" alt="" height="50" width="50"/>
                  <input type="file" id="med_img" class="file_upload"  name="userfile[]" value="<?php  echo $row->prod_image2; ?>" />
            

上传功能是

private function set_upload_options()
{   
    //upload an image options
    $config = array();
    $config['upload_path'] = './resources/images/products/';
    $config['allowed_types'] = 'gif|jpg|png';
    $config['max_size']      = '0';
    $config['overwrite']     = FALSE;

    return $config;
}

Answer 1

我认为需要像这样在您的控制器中单独上传。

function update_products() 
{ 
    $id = $this->input->post('id');
    $this->load->library('upload');
    $this->upload->initialize($this->set_upload_options());

    $data = array();

    if($this->upload->do_upload('userfile')) {   
        $dataInfo = $this->upload->data();
        $data['prod_image'] = $dataInfo['file_name'];
    }

    if($this->upload->do_upload('userfile1')) {   
        $dataInfo = $this->upload->data();
        $data['prod_image1'] = $dataInfo['file_name'];
    }

    if($this->upload->do_upload('userfile2')) {   
        $dataInfo = $this->upload->data();
        $data['prod_image2'] = $dataInfo['file_name'];
    }   

    $data['name'] = $this->input->post('name'),
    $data['upadted_time'] = date('Y-m-d H:i:s')  

    $stock = array(
    'discount' => $this->input->post('discount'),
    );

    $this->db->where('prod_id', $id);
    $this->db->update('tbl_products', $data);

    $this->db->where('prods_id', $id);
    $this->db->update('otc_product_discount', $stock);

    $this->session->set_flashdata('msg','<div class="alert alert-success text-center">You are Successfully updated!</div>');
    redirect('index.php/admin/display_product_list');
} 

更改FIlE输入字段名称userfileuserfile1和userfile2如下：

<input type="file" id="med_img" class="file_upload"  name="userfile"/>
<input type="file" id="med_img" class="file_upload"  name="userfile1"/>
<input type="file" id="med_img" class="file_upload"  name="userfile2"/>