csv文件在本地上传但在codeigniter中不在线

Question

我的csv文件在本地上传很完美但是当我在我的网站上传它然后不上传以下是我的上传功能

function upload_title()
{
    if(isset($_POST['upload_titles'])) // check if submit button is clicked
    {
        $config['upload_path'] = 'uploads/title/';
        $config['allowed_types'] = 'csv';
        $config['max_size'] = '5000';
        $config['overwrite']  = TRUE;
        $config['encrypt_name']  = TRUE;
        $config['remove_spaces']  = TRUE;

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

        $this->upload->do_upload();
        $temp = $this->upload->data('userfile');
        $article_titlelist = $temp['file_name'];



        if($this->upload->do_upload())
        {
            $this->load->library('csvreader');
            $result =   $this->csvreader->parse_file('./uploads/title/'.$article_titlelist);

            foreach($result as $val)
            {
                $articletitle = $val['title'];
                $title_category = $val['category'];
                $mDate = date('Y-m-d H:i:s');
                $data = array(
                        'article_title' => $articletitle,
                        'title_category' => $title_category,
                        'article_cdate' => $mDate,
                        'article_mdate' => $mDate
                        );
                $this->article_model->addtitle($data);
            }
            redirect('admin/article/title_listing');
        }
    }
    $error = array('error' => $this->upload->display_errors());
    $data['page_title'] = 'Article Title';
    $data['content'] = $this->load->view('admin/add_title', $error, true);
    $this->load->view('admin/template', $data);     
}

我已经在网上查看它没有进入do_upload状态