function widget($args, $instance){
  extract($args);
  $title = apply_filters('widget_title', empty($instance['title']) ? 'Choose a service' : $instance['title']);
  $lineOne = empty($instance['username']) ? '' : $instance['username'];
  $lineTwo = empty($instance['password']) ? '' : $instance['password'];

  # Before the widget

  echo $before_widget; // etc...

$url = "http://www.nhs.uk/NHSCWS/Services/ServicesSearch.aspx?user=".[USERNAME]."&pwd=".[PASSWORD]."&q=".$_POST['PostCode']."&type=".$_POST['ServiceType']."";

$dummy = new My_Widget_Class();
 $settings = $dummy->get_settings();

$settings[3]

SELECT *
FROM `wp_options`
WHERE `option_name`
REGEXP '^widget_'
LIMIT 0 , 30

<?php echo get_option('your_widget_option_name'); ?>

<?php add_option("my_widget_option_name", 'option_value'); ?>

<?php $option_val = get_option("my_widget_option_name"); ?>

$dummy = new My_Widget_Class();
$settings = $dummy->get_settings();
$settings = reset($settings);