Download file only when click on link in foreach loop

Why uri_segment()?

PHP Code:

public function downloads($id)
{

$this->db->where('attachment_id',$id);
$query = $this->db->get('attachments');
If ($query->num_rows() == 0) {
   Return false;
}

$attachment = $query->row();
$path = $attachment->path;  //assuming path end with a /
$file = $attachment->file_name;  

Force_download($path . $file, NULL);
}
//no exit needed 


In your view, replace the '<a>...</a>' part with:

PHP Code:

<?php echo anchor('preview/downloads/' . $attachment['id'], $attachment['file_name');?>

Don't include the file name in the url. A file name may contain spaces or other characters that are not allowed in url's. Fetch the file name (and path) from the database.
The anchor helper function accepts 2 or 3 parameters.
1 = the link to the controller/method (the function will convert this the actual url)
2 = the text to click on (can be an image)
3 = string with additional attributes, like class, title, style etc.