RSS feed aggregator/combiner in PHP with Magpie RSS (v2)

I have recently upgraded the code to combine multiple RSS feeds, for the original version see this post.

To install, extract the following zip file to a directory where you want your combined feeds to be displayed, I use t.com/combinedfeed as xxxxx.com/feed is already used by WordPress.

Edit index.php for your site, and make sure the temp directory has write permissions (mod 755). That should be it. Enjoy.

t RSS feed aggregator v2.zip

Thanks to Magpie RSS and Feedcreator.

<?php
$TMP_ROOT = "temp/"; //a atempory folder for storing the cached feeds, need to have write access (mod755)
$DOMAIN_NAME = "https://mectile.com/";
$SITE_TITLE = "blog feeds";
$SITE_DESRIPTION = "A collection of xxxxx's blog feeds";
$SITE_AUTHOR = "xxxx";

$FEEDS_ARRAY  = array( //the collection of urls linking to individual feeds
"http://xxxxxx.com/feed/",
"http://xxxxxx.com/feed",
"http://xxxxxx.com/feed/"
);

$MAX_ITEMS = 10;
$SHOW_FULL_FEED = FALSE;

//stop editing from here onwards

define('MAGPIE_DIR', '');
define('MAGPIE_CACHE_DIR', $TMP_ROOT);

//include magpie rss http://magpierss.sourceforge.net/
@require_once(MAGPIE_DIR.'rss_fetch.inc');

//include universal feed creator http://sourceforge.net/projects/feedcreator/
@include(MAGPIE_DIR.'feedcreator.class.php');

//create the basic rss feed
$rss = new UniversalFeedCreator();
$rss->useCached();
$rss->title = $SITE_TITLE;
$rss->description = $SITE_DESRIPTION;
$rss->link = $DOMAIN_NAME;
$rss->syndicationURL = curPageURL();

//get all items is all feeds
$total_temp = 0; //temp total number of posts in all rss feeds
foreach ($FEEDS_ARRAY as $single_url) {
$array_temp[$single_url]['page_title'] = url_grab_title($single_url); //grab the page title

$rss_temp = fetch_rss($single_url);
$items = array_slice($rss_temp->items, 0, $MAX_ITEMS);
$array_temp[$single_url]['rss_data'] = $items;
$total_temp += count($items);

$array_temp[$single_url]['rss_pointer'] = 0;

preg_match('@^(?:http://)?([^/]+)@i', $single_url, $matches);
$array_temp[$single_url]['site_url'] = $matches[0];
}

while ($total_temp <> 0 && $MAX_ITEMS > 0){// loop while there are remaining posts to process
$date_timestamp_temp = 0; //initialise to 0
foreach ($FEEDS_ARRAY as $single_url) {
$this_date_timestamp = $array_temp[$single_url]['rss_data'][$array_temp[$single_url]['rss_pointer']]['date_timestamp']; //get the date stamp of this post
if ($this_date_timestamp > $date_timestamp_temp) { //if this date stamp is the newest, save where it came from
$date_timestamp_temp = $this_date_timestamp; //update with this date stamp
$temp_url = $single_url; //save the url feed
$pointer_temp = $array_temp[$single_url]['rss_pointer']; //save the item number
}
}

$total_temp --; //decrement total remaining posts to process
$MAX_ITEMS --; //decrement number of posts to display
$array_temp[$temp_url]['rss_pointer'] ++; //increment post index of used post rss

//get the saved item
$item = $array_temp[$temp_url]['rss_data'][$pointer_temp];

//create the new item
$item_new = new FeedItem();

//add all the copied basics
$item_new->title = $item['title'];
$item_new->link = $item['link'];
$item_new->date = $item['pubdate'];
$item_new->author = $item['author'];
$item_new->source = $temp_url;

//to show full feed or blurb
if ($SHOW_FULL_FEED) {
$item_new->description = $item['content']['encoded'].'<p>Copyright © <a href="'.$array_temp[$temp_url]['site_url'].'">'.$array_temp[$temp_url]['page_title'].'</a>. All Rights Reserved.</p>';
} else {
$item_new->description = $item['description']       .'<p>Copyright © <a href="'.$array_temp[$temp_url]['site_url'].'">'.$array_temp[$temp_url]['page_title'].'</a>. All Rights Reserved.</p>';
}

$rss->addItem($item_new);
}

// a quick function the grab a pages title
function url_grab_title($rss_url) {
$contents = file_get_contents($rss_url, TRUE, NULL, 0, 3072);
$contents = preg_replace("/(\n|\r)/", '', $contents);
preg_match('/<title>(.*?)<\/title>/i', $contents, $matches);
return $matches[1];
}

//get page url (for syndication), source http://www.webcheatsheet.com/PHP/get_current_page_url.php
function curPageURL() {
$pageURL = 'http';
if ($_SERVER["HTTPS"] == "on") {$pageURL .= "s";}
$pageURL .= "://";
if ($_SERVER["SERVER_PORT"] != "80") {
$pageURL .= $_SERVER["SERVER_NAME"].":".$_SERVER["SERVER_PORT"].$_SERVER["REQUEST_URI"];
} else {
$pageURL .= $_SERVER["SERVER_NAME"].$_SERVER["REQUEST_URI"];
}
return $pageURL;
}

// get your news items from other feed and display back
$rss->saveFeed("RSS2.0", $TMP_ROOT."feed.xml");
?>