How Can I Write Zend Framework URLs That Have Anchor Tags In The Body?

<?= $this->url(array(
    'controller'=>'my.controller',
    'action'=>'my.action',
    'anchor'=>'#myanchor'
));

class My_View_Helper_Url extends Zend_View_Helper_Url
{
    public function url(array $urlOptions = array(), $name = null, $reset = false, $encode = true)
    {
    	if (isset($urlOptions['anchor']) && !empty($urlOptions['anchor']))
    	{
    		$anchor = $urlOptions['anchor'];
    		unset($urlOptions['anchor']);
    	}
    	else
    	{
    		$anchor = '';
    	}

        return parent::url($urlOptions, $name, $reset, $encode).$anchor;
    }
}

<?= $this->url(array(
    'controller'=>'my.controller',
    'action'=>'my.action',
    'anchor'=>'#myanchor'
));

class My_View_Helper_Url extends Zend_View_Helper_Url
{
    public function url(array $urlOptions  = array(), $name   = null,
                              $reset       = false,   $encode = true,
                              $fragment_id = null)
    {
        $uri = parent::url($urlOptions, $name, $reset, $encode);

        if(!is_null($fragment_id)) {
            $uri .= "#$fragment_id";
        }

        return $uri;
    }
}