Stuart Ford

RSSCreateFeed()

November 3rd, 2009 Leave a comment Go to comments

Creates XML to form an RSS feed. Remember to set # the content type before calling.

function RSSCreateFeed($title,$description,$link,$editor,$feedlink,$items) {
	
	# @purpose	Creates XML to form an RSS feed. Remember to set the content type before calling.
	
	# @param	$title		Title of feed.
	# @param	$description	Description of feed.
	# @param	$link		General link to parent website.
	# @param	$editor		Managing editor (name and/or e-mail address (in brackets if name also used)).
	# @param	$feedlink	URL of feed to be rendered.
	# @param	$items		Array of RSS items. Each element is an associative array containing the following fields: timestamp, category, title, description, link, author. Note that the item's content is passed in "description".
	
	# @returns	True, or false if no items were passed.
	
	# @changelog	01/06/2009	sbf	Function created (incomplete).
	# @changelog	19/06/2009	sbf	Function completed.
	# @changelog	19/06/2009	sbf	Validation bugfixes.
	
	# @docend

# check input
	if (!$items || count($items) == 0) {
		return false;
	}

# XML header
	print "<?xml version=\"1.0\" encoding=\"UTF-8\"?>\n";

?>
	
	<rss xmlns:atom='http://www.w3.org/2005/Atom' xmlns:openSearch='http://a9.com/-/spec/opensearchrss/1.0/' xmlns:georss='http://www.georss.org/georss' version='2.0'>
		
		<channel>
			
			<lastBuildDate><?= strftime("%a, %d %b %Y %H:%M:%S +0000",time()); ?></lastBuildDate>
			<title><?= $title; ?></title>
			<description><?= $description; ?></description>
			<link><?= $link; ?></link>
			<managingEditor><?= $editor; ?></managingEditor>
			<generator>RSSCreateFeed</generator>
			<openSearch:totalResults><?= count($items); ?></openSearch:totalResults>
			<openSearch:startIndex>1</openSearch:startIndex>
			<openSearch:itemsPerPage><?= count($items); ?></openSearch:itemsPerPage>
			<atom:link href="<?= $feedlink; ?>" rel="self" type="application/rss+xml"/>
		
		<? foreach ($items as $item) { ?>
			
			<item>
				<guid isPermaLink='false'><?= md5("{$title}{$item['timestamp']}{$item['title']}"); ?></guid>
				<pubDate><?= strftime("%a, %d %b %Y %H:%M:%S +0000",$item["timestamp"]); ?></pubDate>
				<atom:updated><?= strftime("%Y-%m-%dT%H:%M:%S.0+00:00",$item["timestamp"]); ?></atom:updated>
				<category domain='http://www.blogger.com/atom/ns#'><?= $item["category"]; ?></category>
				<title><?= $item["title"]; ?></title>
				<description><?= $item["description"]; ?></description>
				<link><?= $item["link"]; ?></link>
				<author><?= $item["author"]; ?></author>
				<thr:total xmlns:thr='http://purl.org/syndication/thread/1.0'>0</thr:total>
			</item>
			
		<? } ?>
			
		</channel>
		
	</rss>
	
	<?
	
	# return true
	return true;
	
}

Comments (1) Trackbacks (0) Leave a comment Trackback

DG

February 5th, 2010 at 10:23 | #1

Reply | Quote

Seen http://framework.zend.com/manual/en/zend.feed.writer.html ? I’d guess it would sanitise output (e.g. $item['title'] ) for you magically…

(Of course you may dislike the Zend Framework, or not want the dependency with it…)

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