/**
* include_file Used by view to include sub-views
*
* Example:
*
* view.php
* <code>
* <html>
* <body>
* body content
* <?php $this->include_file('footer.php') ?>
* </body>
* </html>
* </code>
*
* @param string $file
* @return void
*/
protected function include_file($file)
{
$v = new View($file);
$v->render($this->data);
$this->data = $v->get_data();
}
