15.2.  导入Feeds

<?php
// 从数组导入 feed 
$atomFeedFromArray = Zend_Feed::importArray($array);

// 下面一行和上面相同；缺省地 Zend_Feed_Atom 实例被返回
$atomFeedFromArray = Zend_Feed::importArray($array, 'atom');

// 从数组导入 rss feed 
$rssFeedFromArray = Zend_Feed::importArray($array, 'rss');
            

数组格式必须和这个结构一致：

<?php
array(
      'title'       => 'title of the feed', //required
      'link'        => 'canonical url to the feed', //required
      'lastUpdate'  => 'timestamp of the update date', // optional
      'published'   => 'timestamp of the publication date', //optional
      'charset'     => 'charset of the textual data', // required
      'description' => 'short description of the feed', //optional
      'author'      => 'author/publisher of the feed', //optional
      'email'       => 'email of the author', //optional
      'webmaster'   => 'email address for person responsible for technical issues' // optional, ignored if atom is used
      'copyright'   => 'copyright notice', //optional
      'image'       => 'url to image', //optional
      'generator'   => 'generator', // optional
      'language'    => 'language the feed is written in', // optional
      'ttl'         => 'how long in minutes a feed can be cached before refreshing', // optional, ignored if atom is used
      'rating'      => 'The PICS rating for the channel.', // optional, ignored if atom is used
      'cloud'       => array(
                             'domain'            => 'domain of the cloud, e.g. rpc.sys.com' // required
                             'port'              => 'port to connect to' // optional, default to 80
                             'path'              => 'path of the cloud, e.g. /RPC2' //required
                             'registerProcedure' => 'procedure to call, e.g. myCloud.rssPleaseNotify' // required
                             'protocol'          => 'protocol to use, e.g. soap or xml-rpc' // required
                             ), // a cloud to be notified of updates // optional, ignored if atom is used
      'textInput'   => array(
                             'title'       => 'the label of the Submit button in the text input area' // required,
                             'description' => 'explains the text input area' // required
                             'name'        => 'the name of the text object in the text input area' // required
                             'link'        => 'the URL of the CGI script that processes text input requests' // required
                             ) // a text input box that can be displayed with the feed // optional, ignored if atom is used
      'skipHours'   => array(
                             'hour in 24 format', // e.g 13 (1pm)
                             // up to 24 rows whose value is a number between 0 and 23
                             ) // Hint telling aggregators which hours they can skip // optional, ignored if atom is used
      'skipDays '   => array(
                             'a day to skip', // e.g Monday
                             // up to 7 rows whose value is a Monday, Tuesday, Wednesday, Thursday, Friday, Saturday or Sunday
                             ) // Hint telling aggregators which days they can skip // optional, ignored if atom is used
      'itunes'      => array(
                             'author'       => 'Artist column' // optional, default to the main author value
                             'owner'        => array(
                                                     'name' => 'name of the owner' // optional, default to main author value
                                                     'email' => 'email of the owner' // optional, default to main email value
                                                     ) // Owner of the podcast // optional
                             'image'        => 'album/podcast art' // optional, default to the main image value
                             'subtitle'     => 'short description' // optional, default to the main description value
                             'summary'      => 'longer description' // optional, default to the main description value
                             'block'        => 'Prevent an episode from appearing (yes|no)' // optional
                             'category'     => array(
                                                     array('main' => 'main category', // required
                                                           'sub'  => 'sub category' // optional
                                                           ),
                                                     // up to 3 rows
                                                     ) // 'Category column and in iTunes Music Store Browse' // required
                             'explicit'     => 'parental advisory graphic (yes|no|clean)' // optional
                             'keywords'     => 'a comma separated list of 12 keywords maximum' // optional
                             'new-feed-url' => 'used to inform iTunes of new feed URL location' // optional
                             ) // Itunes extension data // optional, ignored if atom is used
      'entries'     => array(
                             array(
                                   'title'        => 'title of the feed entry', //required
                                   'link'         => 'url to a feed entry', //required
                                   'description'  => 'short version of a feed entry', // only text, no html, required
                                   'guid'         => 'id of the article, if not given link value will used', //optional
                                   'content'      => 'long version', // can contain html, optional
                                   'lastUpdate'   => 'timestamp of the publication date', // optional
                                   'comments'     => 'comments page of the feed entry', // optional
                                   'commentRss'   => 'the feed url of the associated comments', // optional
                                   'source'       => array(
                                                           'title' => 'title of the original source' // required,
                                                           'url' => 'url of the original source' // required
                                                           ) // original source of the feed entry // optional
                                   'category'     => array(
                                                           array(
                                                                 'term' => 'first category label' // required,
                                                                 'scheme' => 'url that identifies a categorization scheme' // optional
                                                                 ),
                                                           array(
                                                                 //data for the second category and so on
                                                                 )
                                                           ) // list of the attached categories // optional
                                   'enclosure'    => array(
                                                           array(
                                                                 'url' => 'url of the linked enclosure' // required
                                                                 'type' => 'mime type of the enclosure' // optional
                                                                 'length' => 'length of the linked content in octets' // optional
                                                                 ),
                                                           array(
                                                                 //data for the second enclosure and so on
                                                                 )
                                                           ) // list of the enclosures of the feed entry // optional
                                   ),
                             array(
                                   //data for the second entry and so on
                                   )
                             )
       );
            

References:

你可以从任何实现 Zend_Feed_Builder_Interface 的数据源创建 Zeed_Feed 实例，只需要实现 getHeader() 和 getEntries() 方法来和 Zend_Feed::importBuilder() 一起使用你的对象。作为一个简单的参考实现，你可以使用 Zend_Feed_Builder 它在构造器里带有一个数组，执行一些校验，然后可以在 importBuilder() 方法中使用。getHeader() 方法必须返回 Zend_Feed_Builder_Header 的实例， getEntries() 必须返回 Zend_Feed_Builder_Entry 实例的数组。

	注意
	Zend_Feed_Builder 作为具体实现来实现它的用法，（我们）鼓励用户写自己的类来实现 Zend_Feed_Builder_Interface。

Zend_Feed::importBuilder() 用法的例子：

<?php
// 从定制的 builder 源导入 feed 
$atomFeedFromArray = Zend_Feed::importBuilder(new Zend_Feed_Builder($array));

// 和上面一样，缺省地 Zend_Feed_Atom 实例被返回
$atomFeedFromArray = Zend_Feed::importArray(new Zend_Feed_Builder($array), 'atom');

// 从定制的 builder 数组导入 rss feed 
$rssFeedFromArray = Zend_Feed::importArray(new Zend_Feed_Builder($array), 'rss');
            

为了 dump Zend_Feed_Abstract 实例的内容，使用 send() 或 saveXml() 方法。

<?php
assert($feed instanceof Zend_Feed_Abstract);

// dump feed 到标准输出
print $feed->saveXML();

// 发送 http 头和 dump the feed
$feed->send();