<?php
$RSS_Content = array();
function RSS_Tags($item, $type)
{
		$y = array();
		$tnl = $item->getElementsByTagName("title");
		$tnl = $tnl->item(0);
		$title = $tnl->firstChild->textContent;
		$tnl = $item->getElementsByTagName("link");
		$tnl = $tnl->item(0);
		$link = $tnl->firstChild->textContent;
		$y["title"] = $title;
		$y["link"] = $link;
		$y["type"] = $type;
		
		return $y;
}
function RSS_Channel($channel)
{
	global $RSS_Content;
	$items = $channel->getElementsByTagName("item");
	
	// Processing channel
	
	$y = RSS_Tags($channel, 0);		// get description of channel, type 0
	array_push($RSS_Content, $y);
	
	// Processing articles
	
	foreach($items as $item)
	{
		$y = RSS_Tags($item, 1);	// get description of article, type 1
		array_push($RSS_Content, $y);
	}
}
function RSS_Retrieve($url)
{
	global $RSS_Content;
	$doc  = new DOMDocument();
	$doc->load($url);
	$channels = $doc->getElementsByTagName("channel");
	
	$RSS_Content = array();
	
	foreach($channels as $channel)
	{
		 RSS_Channel($channel);
	}
	
}
function RSS_RetrieveLinks($url)
{
	global $RSS_Content;
	$doc  = new DOMDocument();
	$doc->load($url);
	$channels = $doc->getElementsByTagName("channel");
	
	$RSS_Content = array();
	
	foreach($channels as $channel)
	{
		$items = $channel->getElementsByTagName("item");
		foreach($items as $item)
		{
			$y = RSS_Tags($item, 1);	// get description of article, type 1
			array_push($RSS_Content, $y);
		}
		 
	}
}
function RSS_Links($url, $size = 15)
{
	global $RSS_Content;
	$page = "<ul>";
	RSS_RetrieveLinks($url);
	if($size > 0)
		$recents = array_slice($RSS_Content, 0, $size + 1);
	foreach($recents as $article)
	{
		$type = $article["type"];
		if($type == 0) continue;
		$title = $article["title"];
		$link = $article["link"];
		$page .= "<li><a href=\"$link\">$title</a></li>\n";			
	}
	$page .="</ul>\n";
	return $page;
	
}
function RSS_Display($url, $size = 15, $site = 0)
{
	global $RSS_Content;
	$opened = false;
	$page = "";
	$site = (intval($site) == 0) ? 1 : 0;
	RSS_Retrieve($url);
	if($size > 0)
		$recents = array_slice($RSS_Content, $site, $size + 1 - $site);
	foreach($recents as $article)
	{
		$type = $article["type"];
		if($type == 0)
		{
			if($opened == true)
			{
				$page .="</ul>\n";
				$opened = false;
			}
			$page .="<b>";
		}
		else
		{
			if($opened == false) 
			{
				$page .= "<ul align='right'>\n";
				$opened = true;
			}
		}
		$title = $article["title"];
		$link = $article["link"];
				$page .= "<li><a href=\"$link\" target='_blank'>$title</a>";
	
		$page .= "</li>\n";			
		
		if($type==0)
		{
			$page .="</b><br />";
		}
	}
	if($opened == true)
	{	
		$page .="</ul>\n";
	}
	return $page."\n";
	
}
?>