I have set up codeigniter to upload small files < 2MB and that works fine. But I am having trouble uploading large files 20MB >

   function stage1()
    {
    ini_set('upload_max_filesize', '200M');
    ini_set('post_max_size', '200M');                               
    ini_set('max_input_time', 3000);                                
    ini_set('max_execution_time', 3000);

    $config['upload_path'] = './temp/';
    $config['allowed_types'] = 'zip';

    $this->load->library('upload', $config);
    $this->upload->initialize($config);                             
    if(!$this->upload->do_upload('userfile'))                       
    {
      $error = array('error' => $this->upload->display_errors());   
      $this->load->view('upload_form', $error);                     
    }
    else
    {
      $data = array('upload_data' => $this->upload->data());        
      //do stuff
    }
  } 

I am not sure what is wrong with the above code. I overrode the php.ini to accept larger files and to take more time executing the script but it still returns the same error:

You did not select a file to upload.

Again, this works with small files but not large ones.

EDIT: Turns out my server provider has limited file uploads so there is no solution besides to FTP the file in.

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