Render Partial in Controller

gistfile1.php

$sm              = $this->getServiceLocator();
$view            = new ViewModel(array('foo' => 'bar'));
$view->setTemplate('foo/bar');

$resolver        = $sm->get('ViewManager')->getResolver();
$renderer        = new PhpRenderer();
$renderer->setResolver($resolver);

$html            = $renderer->render($view);