我无法通过CodeIgniter上传markdown文件

Question

I don't know how to set the allowed_types, and the markdown file suffix is .md. It always says:

The filetype you are attempting to upload is not allowed.

English is not my native language, so I hope this makes sense. My code:

public function do_upload()
{
  $config['upload_path']      = './blog/';
  $config['allowed_types']    = '';      //file's tye
  $config['max_size']     = 50;     
  $config['max_width']        = 1024;
  $config['max_height']       = 768;
  $this->load->library('upload', $config);

  if ( ! $this->upload->do_upload('userfile'))
  {
    $error = array('error' => $this->upload->display_errors());

    $this->load->view('houtai_view', $error);
  }
  else
  {
    $data = array('upload_data' => $this->upload->data());

    //$this->load->view('upload_success', $data);
  }
}

Answer 1

You just need to allowed_types in your $config array

$config['allowed_types'] = 'md';

If you want to allow all kinds of files than you can use * like:

$config['allowed_types'] = '*';

File Uploading Class