Retrieving Feeds from Web Pages | Zend_Feed Programmer's Reference Guide | Consuming an Atom Feed
# Consuming an RSS Feed Reading an RSS feed is as simple as instantiating a Zend_Feed_Rss object with the URL of the feed: $channel = new Zend_Feed_Rss('http://rss.example.com/channelName'); If any errors occur fetching the feed, a Zend_Feed_Exception will be thrown. Once you have a feed object, you can access any of the standard RSS "channel" properties directly on the object: echo $channel->title(); Note the function syntax. Zend_Feed uses a convention of treating properties as XML object if they are requested with variable "getter" syntax ($obj->property) and as strings if they are access with method syntax ($obj->property()). This enables access to the full text of any individual node while still allowing full access to all children. If channel properties have attributes, they are accessible using PHP's array syntax: echo $channel->category['domain']; Since XML attributes cannot have children, method syntax is not necessary for accessing attribute values. Most commonly you'll want to loop through the feed and do something with its entries. Zend_Feed_Abstract implements PHP's Iterator interface, so printing all titles of articles in a channel is just a matter of: foreach ($channel as $item) { echo $item->title() . "\n"; } If you are not familiar with RSS, here are the standard elements you can expect to be available in an RSS channel and in individual RSS items (entries). Required channel elements: title - The name of the channel link - The URL of the web site corresponding to the channel description - A sentence or several describing the channel Common optional channel elements: pubDate - The publication date of this set of content, in RFC 822 date format language - The language the channel is written in category - One or more (specified by multiple tags) categories the channel belongs to RSS <item> elements do not have any strictly required elements. However, either title or description must be present. Common item elements: title - The title of the item link - The URL of the item description - A synopsis of the item author - The author's email address category - One more categories that the item belongs to comments - URL of comments relating to this item pubDate - The date the item was published, in RFC 822 date format In your code you can always test to see if an element is non-empty with: if ($item->propname()) { // ... proceed. } If you use $item->propname instead, you will always get an empty object which will evaluate to `TRUE`, so your check will fail. For further information, the official RSS 2.0 specification is available at: » http://blogs.law.harvard.edu/tech/rss
Retrieving Feeds from Web Pages | Zend_Feed Programmer's Reference Guide | Consuming an Atom Feed