Copying multiple images from a remote server

[eluser]Unknown[/eluser]
This is my first code snippet therefore constructive criticism is very welcome!

I'm just starting to work with affiliate product feeds and I wanted product images to be served locally rather than being served by an external site. So, with the help of the cURL library, as created by Phil Sturgeon (https://github.com/philsturgeon/codeigniter-curl), I knocked up the following in 10 minutes to grab each image in a feed and store a local copy with the same filename.

Code:

function import_photos()
{
  $this->load->helper('file');
  
  $this->db->select('*');
  $this->db->from('tmp');
  
  $query = $this->db->get();

  
   if ($query->num_rows() > 0)
    {
     foreach($query->result() as $row)
     {
      $results =  $row->photo;
      $img = $this->curl->simple_get($results);
      $filename = basename($results);
      
      // The path is relative to your main site index.php file
      if ( ! write_file("./images/incomming/" . $filename, $img))
      {
       echo 'Unable to write file: ' . $filename;
      }      
     }
    }
   else
   {
    echo 'No photos found';
   }
}

The code assumes that you have a table called tmp with a field called photo that contains the urls of each image. The images directory must be writeable and the cURL library is autoloaded in autoload.php