Zend framework 如何使用Zend_提要在图像中添加宽度和高度（Zend_提要：：importArray）

我正在使用zend_feed生成提要，下面是代码，它工作正常，但我还需要添加一些关于图像的更多信息

$feedData = array(
            'title' => $feed->feedParams['title'],
            'description' => $feed->feedParams['description'],
            'link' => $feed->getSiteUrl() . $feed->feedParams['link'],
            'charset' => $feed->feedParams['charset'],
             'url' => $feed->getSiteUrl() . $feed->feedParams['image'],
            'ttl' => $feed->feedParams['ttl'],
            'entries' => $feed->getFeedContent()
        );
$feed = Zend_Feed::importArray($feedData, 'rss');

结果是

<image>
  <url>http://local.here/assets/img/icons/feed.png</url>
  <title><![CDATA[here Uutiset]]></title>
  <link>http://local.here/uutiset</link>
</image>

---

但是它不工作，你能告诉我怎么做吗？

看起来可选的宽度和高度参数没有映射到Zend_Feed_Rss中

摘自

if (!empty($array->image)) {
            $image = $this->_element->createElement('image');
            $url = $this->_element->createElement('url', $array->image);
            $image->appendChild($url);
            $imagetitle = $this->_element->createElement('title');
            $imagetitle->appendChild($this->_element->createCDATASection($array->title));
            $image->appendChild($imagetitle);
            $imagelink = $this->_element->createElement('link', $array->link);
            $image->appendChild($imagelink);

            $channel->appendChild($image);

$feedData = array(
            'title' => $feed->feedParams['title'],
            'description' => $feed->feedParams['description'],
            'link' => $feed->getSiteUrl() . $feed->feedParams['link'],
            'charset' => $feed->feedParams['charset'],
            'image' => array(
                'url' => $feed->getSiteUrl() . $feed->feedParams['image'],
                'width' => 120,
                'hight' => 130
            ),
            'ttl' => $feed->feedParams['ttl'],
            'entries' => $feed->getFeedContent()
        );
$feed = Zend_Feed::importArray($feedData, 'rss');

if (!empty($array->image)) {
            $image = $this->_element->createElement('image');
            $url = $this->_element->createElement('url', $array->image);
            $image->appendChild($url);
            $imagetitle = $this->_element->createElement('title');
            $imagetitle->appendChild($this->_element->createCDATASection($array->title));
            $image->appendChild($imagetitle);
            $imagelink = $this->_element->createElement('link', $array->link);
            $image->appendChild($imagelink);

            $channel->appendChild($image);