PHP对RSS提要中的iTunes标签的访问 [英] PHP access to iTunes tags in an RSS feed

问题描述

我需要使用PHP来访问RSS feed中的iTunes标签.我以前使用过simplepie进行播客feed，但是我不确定如何使用它来获取iTunes标签.有没有办法使用simplepie做到这一点，还是有更好的办法?

I need to get access to the iTunes tags in an RSS feed using PHP. I've used simplepie before for podcast feeds, but I'm not sure how to get the iTunes tags using it. Is there a way to use simplepie to do it or is there a better way?

好吧，我尝试了简单XML.

Okay I tried Simple XML.

所有这些(下面的代码)似乎有效

All this (the code below) seems to work

$feed = simplexml_load_file('http://sbhosting.com/feed/');
$channel = $feed->channel;
$channel_itunes = $channel->children('http://www.itunes.com/dtds/podcast-1.0.dtd');
$summary = $channel_itunes->summary;
$subtitle = $channel_itunes->subtitle;
$category = $channel_itunes->category;
$owner = $channel_itunes->owner->name;

现在，我需要获取iTunes类别.似乎以几种方式表示. 在这种情况下，我得到以下XML:

Now I need to get the itunes categories. The seem to be represented in several ways. In this case I get the follow XML:

<itunes:category text="Technology"/>
<itunes:category text="Technology">
  <itunes:category text="Software How-To"/>
</itunes:category> 

我希望能够获得类似以下内容的类别:

I would expect to be able to get the category with something like this:

$category_text = $channel_itunes->category['text'];

但这似乎不起作用.

我已经看到了其他方式来表示我真的不知道该获得谁的类别.

I've seen other ways to represent the category that I really don't know who to get.

例如:

技术 商业 教育

Technology Business Education

这是媒体事物还是iTunes事物，还是两者兼而有之?

Is this a media thing or a itunes thing or both?

感谢您的帮助. G

推荐答案

此代码对我有用:

//$pie is a SimplePie object
$iTunesCategories=$pie->get_channel_tags(SIMPLEPIE_NAMESPACE_ITUNES,'category');
if ($iTunesCategories) {
  foreach ($iTunesCategories as $iTunesCategory) {
    $category=$iTunesCategory['attribs']['']['text'];
    $subcat=$iTunesCategory['child']["http://www.itunes.com/dtds/podcast-1.0.dtd"]['category'][0]['attribs']['']['text'];
    if ($subcat) {
      $category.=":$subcat";
    }
    //do something with $category
  }
}

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