$p01_PersonalPhoth  = $_FILES['userfile']['name'];

   $config['upload_path']  = './uploadFiles/';
   $config['allowed_types'] = 'gif|jpg|png|jpeg';
   $config['file_name']  = $this->input->post('p01_id')."_".uniqid();
   $config['remove_spaces'] = true;  
   $config['max_size']   = '100';
   $config['max_width']   = '1024';
   $config['max_height']   = '768';
  
   $this->load->library('upload', $config);
   
   $this->upload->do_upload( $config['file_name'] );