Question

这是一个初学者的问题（对不起）;我使用simplexml_load_string（）php函数来解析RSS提要，我的代码如下所示：

<?php

$url    = "http://www.zdnet.com/blog/rss.xml";
$xml    = file_get_contents($url);
$feed   = simplexml_load_string($xml);

foreach($feed->channel as $channel) {
    echo "Link : " . $channel->link . "<P>";
    echo "Image URL : " . $channel->image->url . "<P>";
}

foreach($feed->channel->item as $item) {
    echo "<HR><P>";
    echo "Link : " . $item->link . "<P>";
    echo "Title : " . $item->title . "<P>";
    echo "Description : " . $item->description . "<P>";
    echo "Date : " . $item->pubDate . "<P>";
}

?>

哪个工作正常，但XML文件有一些看起来像这样的标签：

<media:credit role="author">
<![CDATA[ James Kendrick ]]>
</media:credit>

<media:text type="html">
<![CDATA[
<figure class="alignRight"><a href="/i/story/70/00/034218/kindle-iphone-2.jpg" target="_blank">     
<img title="kindle-iphone-2" alt="kindle-iphone-2" src="http://cdn-static.zdnet.com/1.jpg"> 
height="237" width="200"></a><figcaption>(I
]]>

<![CDATA[
mage: James Kendrick/ ZDNet)</figcaption></figure> <p>Regular readers know I am a tablet guy
]]>
</media:text>

如何解析这些标签？

由于

Answer 1

要访问具有名称空间的节点，在这种情况下可以使用->children()：

$url = "http://www.zdnet.com/blog/rss.xml";
$feed = simplexml_load_file($url, null, LIBXML_NOCDATA);

foreach($feed->channel->item as $item) {
    echo "<HR><P>";
    echo "Link : " . $item->link . "<P>";
    echo "Title : " . $item->title . "<P>";
    echo "Description : " . $item->description . "<P>";
    echo "Date : " . $item->pubDate . "<P>";

    $media = $item->children('media', 'http://search.yahoo.com/mrss/'); // medias
    // then just loop the children
    // foreach($media as $m) {}
    $s = $item->children('s', 'http://www.zdnet.com/search'); // ss
}

PHP解析器使用simplexml_load_string（）

1 个答案: