codeigniter

Question

我在成功上传文件时遇到错误。 html输入文件就像

<input type="file" name="userfile[]" >
    <input type="file" name="userfile[]" >

我的控制器功能包含

$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();
            }

            if(!$this->upload->do_upload('userfile[0]')&&!$this->upload->do_upload('userfile[1]'))
            { 
                $data['message'] = $this->upload->display_errors(); 
                $this->parser->parse('view_fileUploading',$data);
            }
            else
            {
                $data['message'] = "Success"; 
                $this->parser->parse('view_fileUploading',$data);
            } 

和

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


        return $config;
    }

在我的图片文件夹中，我成功上传了所有上传图片，但我也收到了错误，例如“您没有选择要上传的文件”

我想我的

  

如果（$这 - ＆GT;！upload-＆GT; do_upload（ 'userfile的[0]'）及;＆安培;！$这 - ＆GT; upload-＆GT; do_upload（ 'userfile的1'））

无法正常使用

我怎样才能正确获得成功的消息？