如何在codeigniter中上传2个单独的图像

Posted 2023-05-08

【中文标题】如何在codeigniter中上传2个单独的图像

【英文标题】：How to upload 2 separate images in codeigniter

【发布时间】：2016-07-27 21:22:39

【问题描述】：

我想分别上传 2 张图片。我有一个条件，我需要上传文件，有时需要上传文件，有时只需要图像，我需要使用单独的按钮来区分图像和文件。

我的代码是

<form action="http://localhost/cod_login/club/test2" enctype="multipart/form-data" method="post" accept-charset="utf-8">
  <input type="file" name="userfile" size="20">
  <input type="file" name="userfile" size="20">
  <input type="submit" name="submit" value="upload">
</form>

这是控制器

function ddoo_upload()
    $config['upload_path'] = './uploads/';
    $config['allowed_types'] = 'gif|jpg|png';
    $config['max_size'] = '100';
    $config['max_width']  = '1024';
    $config['max_height']  = '768';

    $this->load->library('upload', $config);

    if ( ! $this->upload->do_upload()) 
        $error = array('error' => $this->upload->display_errors());
        $this->load->view('upload_form', $error);
     else 
        $data = array('upload_data' => $this->upload->data());
        $this->load->view('upload_success', $data);
    

【问题讨论】：

可以只使用一个文件上传按钮，在按钮中添加multiple="multiple"属性，区分服务器端的文件类型。

不，我需要两个按钮，而不是我们客户要求的一个

你可以看看这个answer，根据文件类型上传。

【参考方案1】：

如果你想要两个不同的文件按钮，你需要给他们不同的名字。

<form action="" enctype="multipart/form-data" method="post" accept-charset="utf-8">
<input type="file" name="userfile1" size="20">
<input type="file" name="userfile2" size="20">
<input type="submit" name="submit" value="upload">

你必须修改你的函数ddoo_upload()，如下所示 :-

  function ddoo_upload($filename)
    $config['upload_path'] = './uploads/';
    $config['allowed_types'] = 'gif|jpg|png';
    $config['max_size'] = '100';
    $config['max_width']  = '1024';
    $config['max_height']  = '768';

    $this->load->library('upload', $config);
    if ( ! $this->upload->do_upload($filename)) 
        $error = array('error' => $this->upload->display_errors());
    return false;
    // $this->load->view('upload_form', $error);
     else 
    $data = array('upload_data' => $this->upload->data());
    return true;
    //$this->load->view('upload_success', $data);
    

注意：-我们将$filename 作为变量传递，而不是使用它来上传不同的文件。

现在在表单动作重定向的控制器中，您需要编写以下代码。

  if ($this->input->post('submit'))
    if (isset($_FILES['userfile1']) && $_FILES['userfile1']['name'] != '')
        $file1 = $this->ddoo_upload('userfile1');
    
        
    if (isset($_FILES['userfile2']) && $_FILES['userfile2']['name'] != '')
        $file2 = $this->ddoo_upload('userfile2');
       

【参考方案2】：

<form action="http://localhost/cod_login/club/test2" enctype="multipart/form-data" method="post" accept-charset="utf-8">


<input type="file" name="userfile" size="20" multiple="">
<input type="submit" name="submit" value="upload">
</form>

【讨论】：

先生，我需要两个按钮而不是一个

需要单独上传图片

一键上传单张图片，其他多张图片..对吧？

【参考方案3】：

这是我在codeigniter中申请上传两张图片的控制器代码

公共函数索引（）

if($this->input->post('Submit'))

//-----------Image File Section Start Here -----------//

 $config['upload_path'] = './uploads/';   // Directory 
$config['allowed_types'] = 'jpg|jpeg|bmp|png';  //type of images allowed
$config['max_size'] = '30720';   //Max Size
$config['encrypt_name'] = TRUE;   // For unique image name at a time

$this->load->library('upload', $config);  //File Uploading library
$this->upload->do_upload('userfile');  // input name which have to upload 
$video_upload=$this->upload->data();   //variable which store the path

//--------------End of Image File  Section------------------------//



//---------Thumbnail Image Upload Section Start Here -----------//

$config2['upload_path'] = './thumb/';   // Directory 
$config2['allowed_types'] = 'jpg|jpeg|bmp|png'; //type of images allowed
$config2['max_size'] = '30720';   //Max Size
$config2['encrypt_name'] = TRUE;   // For unique image name at a time


$this->upload->initialize($config2); //we can not use upload library again and again it will not initialize again and again so thats why i have used initialize 
$this->upload->do_upload('txt_thumb');  // File Name
$thumbnail_upload=$this->upload->data(); // store the name of the file 

//--------End of Thumbnail Upload Section-----------//



    $date=date("d-m-Y");  // Store current date in variable 

   // Here the database query to insert

    $data = array(
    'parent_id'=> $this->input->post('txt_parent'),
    'cat_id' => $this->input->post('txt_category'),
    'title'=> $this->input->post('txt_title'),
    'status' => $this->input->post('txt_status'),
    'featured' => $thumbnail_upload['file_name'],
    'image' => $video_upload['file_name'],
    'time'=>$date
    );

       $sql_ins= $this->Insimage->insertimage($data);
       if($sql_ins)
       
           $data['Success'] = "Image has been succesfully inserted!!";
       

此代码肯定可以上传 2 张图片 享受！！！！ :-)

【参考方案4】：

1- 在你的控制器中创建 image_uploader

function image_uploader($filename)
  $config['upload_path'] = './assets/uploads/setting/';
  $config['allowed_types'] = 'gif|jpg|png';
  $config['max_size'] = '100';
  $config['max_width']  = '2000';
  $config['max_height']  = '2000';
  $this->load->library('upload', $config);
  if ( ! $this->upload->do_upload($filename)) 
  $error = array('error' => $this->upload->display_errors());
   else 
  $data_foto = $this->upload->data();
  return $data_foto['file_name'];

如果上传成功，此函数返回图片文件名

2- 在其他函数中调用 image_uploader（视图中的表单操作）

public function slideroneupload() 
  $this->site_security->_make_sure_is_admin();
  $data = $this->input->post();
  $sliderimage = $this->image_uploader('image');
  $thumbimage = $this->image_uploader('thumb');

  // save all data to database 
  .
  .
  .