Differences

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--- rss:combine_multiple_rss_feeds [2016/10/09 13:28] – created peter
+++ rss:combine_multiple_rss_feeds [2020/07/15 09:30] (current) – external edit 127.0.0.1
@@ Line 88: / Line 88: @@
     $xml = NULL;
 }
+</code>
+===== Another way =====
+<code php>
+<?php
+class Feed_Amalgamator
+{
+    public $urls = array();
+    public $data = array();
+    public function addFeeds( array $feeds )
+    {
+        $this->urls = array_merge( $this->urls, array_values($feeds) );
+    }
+    public function grabRss()
+    {
+        foreach ( $this->urls as $feed )
+        {
+            $data = @new SimpleXMLElement( $feed, 0, true );
+            if ( !$data )
+                throw new Exception( 'Could not load: ' . $feed );
+            foreach ( $data->channel->item as $item )
+            {
+                $this->data[] = $item;
+            }
+        }
+    }
+    public function amalgamate()
+    {
+        shuffle( $this->data );
+        $temp = array();
+        foreach ( $this->data as $item )
+        {
+            if ( !in_array($item->link, $this->links($temp)) )
+            {
+                $temp[] = $item;
+            }
+        }
+        $this->data = $temp;
+        shuffle( $this->data );
+    }
+    private function links( array $items )
+    {
+        $links = array();
+        foreach ( $items as $item )
+        {
+            $links[] = $item->link;
+        }
+        return $links;
+    }
+}
+/********* Example *********/
+$urls = array( 'http://newsrss.bbc.co.uk/rss/sportonline_uk_edition/football/teams/m/man_city/rss.xml', 'http://newsrss.bbc.co.uk/rss/sportonline_uk_edition/football/teams/l/liverpool/rss.xml' );
+try
+{
+    $feeds = new Feed_Amalgamator;
+    $feeds->addFeeds( $urls );
+    $feeds->grabRss();
+    $feeds->amalgamate();
+}
+catch ( exception $e )
+{
+    die( $e->getMessage() );
+}
+foreach ( $feeds->data as $item ) :
+extract( (array) $item );
+?>
+<h2><a href="<?php echo $link; ?>"><?php echo $title; ?></a></h2>
+<p><?php echo $description; ?></p>
+<p><em><?php echo $pubDate; ?></em></p>
+<?php endforeach; ?>
+</code>
+===== Another Way =====
+<code php>
+<?php
+// Set the feed URLs here
+$feeds = array(
+    //'http://www.example.org/feed1.rss',
+    //'http://www.example.org/feed2.rss',
+    'http://newsrss.bbc.co.uk/rss/sportonline_uk_edition/football/teams/m/man_city/rss.xml',
+    'http://newsrss.bbc.co.uk/rss/sportonline_uk_edition/football/teams/l/liverpool/rss.xml',
+    // etc.
+);
+// Get all feed entries
+$entries = array();
+foreach ($feeds as $feed) {
+    $xml = simplexml_load_file($feed);
+    $entries = array_merge($entries, $xml->xpath('/rss//item'));
+}
+// Sort feed entries by pubDate (ascending)
+usort($entries, function ($x, $y) {
+    //return strtotime($x->pubDate) - strtotime($y->pubDate);
+    return strtotime($y->pubDate) - strtotime($x->pubDate);
+});
+print_r($entries);
+?>
+</code>
+===== Another way =====
+With 4 lines, I import a rss to an array.
+<code php>
+$feed = implode(file('http://yourdomains.com/feed.rss'));
+$xml = simplexml_load_string($feed);
+$json = json_encode($xml);
+$array = json_decode($json,TRUE);
+</code>
+Try also changing 1st line for one of these...
+<code php>
+$feed = file_get_contents('http://yourdomains.com/feed.rss');
+$feed = json_decode(json_encode(simplexml_load_file('news.google.com‌/?output=rss')), true);
+</code>
+For a more complex solution
+<code php>
+$feed = new DOMDocument();
+ $feed->load('file.rss');
+ $json = array();
+ $json['title'] = $feed->getElementsByTagName('channel')->item(0)->getElementsByTagName('title')->item(0)->firstChild->nodeValue;
+ $json['description'] = $feed->getElementsByTagName('channel')->item(0)->getElementsByTagName('description')->item(0)->firstChild->nodeValue;
+ $json['link'] = $feed->getElementsByTagName('channel')->item(0)->getElementsByTagName('link')->item(0)->firstChild->nodeValue;
+ $items = $feed->getElementsByTagName('channel')->item(0)->getElementsByTagName('item');
+ $json['item'] = array();
+ $i = 0;
+ foreach($items as $key => $item) {
+ $title = $item->getElementsByTagName('title')->item(0)->firstChild->nodeValue;
+ $description = $item->getElementsByTagName('description')->item(0)->firstChild->nodeValue;
+ $pubDate = $item->getElementsByTagName('pubDate')->item(0)->firstChild->nodeValue;
+ $guid = $item->getElementsByTagName('guid')->item(0)->firstChild->nodeValue;
+ $json['item'][$key]['title'] = $title;
+ $json['item'][$key]['description'] = $description;
+ $json['item'][$key]['pubdate'] = $pubDate;
+ $json['item'][$key]['guid'] = $guid;
+ }
+echo json_encode($json);
 </code>