2个Codeigniter文件批量上传控制器写法例子

例子一：

    /**
     * 多文件上传
     * 
     * @author Dream <dream@shanjing-inc.com>
     */
    public function multiple_uploads() {
      //载入所需类库
      $this->load->library('upload');

      //配置上传参数
      $upload_config = array(
          'upload_path'  => '',
          'allowed_types' => 'jpg|png|gif',
          'max_size'   => '500',
          'max_width'   => '1024',
          'max_height'  => '768',
      );
      $this->upload->initialize($upload_config);

      //循环处理上传文件
      foreach ($_FILES as $key => $value) {
        if (!empty($key['name'])) {
          if ($this->upload->do_upload($key)) {
            //上传成功
            print_r($this->upload->data());
          } else {
            //上传失败
            echo $this->upload->display_errors();
          }
        }
      }
    }

例子二：

    function upload() {
        $config['upload_path'] = './uploads/'; 
        /*这里的uploads是相对于index.php的,也就是入口文件,这个千万不要弄错哦!
        否则就会报错"The upload path does not appear to be valid."; 
        */
        $config['allowed_types'] = 'gif|jpg|png';
        /*我试着去上传其它类型的文件,这里一定要注意顺序! 
        A problem was encountered while attempting to move the uploaded file to the final destination.
        这个错误一般是上传文件的文件名不能是中文名,这个很郁闷!还未解决,大家可以用其它方法,重新改一下文件名就可以解决了! 
        $config['allowed_types'] = 'zip|gz|png|gif|jpg';(正确)
        $config['allowed_types'] = 'png|gif|jpg|zip|gz';(错误)
        */
        $config['max_size'] = '1024';
        $config['max_width'] = '1024';
        $config['max_height'] = '768';

        $config['file_name'] = time(); //文件名不使用原始名
        $this->load->library('upload', $config);
        if(!$this->upload->do_upload()) {
            echo $this->upload->display_errors();
        }else{

           $data['upload_data']=$this->upload->data(); //文件的一些信息
           $img=$data['upload_data']['file_name']; //取得文件名

           echo $img."<br>";

           foreach($data['upload_data'] as $item => $value){
           echo $item.":".$value."<br>";

          }

        }
    }