rss-reader php script?!?!

<?php
// #############################################################################
ShowFeed("http://www.chip.de/rss/rss_downloads.xml");
// #############################################################################


function ShowFeed($RssFeedFile) {
	$XmlRoot = ParseXmlFile($RssFeedFile);
	if ($XmlRoot) {
		if (strtolower($XmlRoot->name) == "rss") {
			ShowFeed_RSS($XmlRoot);
		} else if (strtolower($XmlRoot->name) == "rdf:rdf") {
			ShowFeed_RDF($XmlRoot);
		} else if (strtolower($XmlRoot->name) == "smf:xml-feed") {
			ShowFeed_SMFXMLFEED($XmlRoot, "http://www.your-smf-forum.tld/", "Forumstitel", "Your SMF...");
		}
	}
}
// #############################################################################


function ShowFeed_RSS($XmlRoot) {
	$title = GetFirstChildContentByPath($XmlRoot, "channel/title");
	$link = GetFirstChildContentByPath($XmlRoot, "channel/link");
	$desc = GetFirstChildContentByPath($XmlRoot, "channel/description");


	echo "<h2><a href=\"$link\">$title</a></h2>\n";
	echo "


$desc</p>\n";


	$nodelist = GetChildrenByPathAndName($XmlRoot, "channel", "item");
	if (!$nodelist) return 0;
	foreach ($nodelist as $nl) {
		$title = GetFirstChildContentByName($nl, "title");
		$link = GetFirstChildContentByName($nl, "link");
		$desc = GetFirstChildContentByName($nl, "description");
		$creator = GetFirstChildContentByName($nl, "author");
		if (!$creator) $creator = GetFirstChildContentByName($nl, "dc:creator");
		$pubdate = GetFirstChildContentByName($nl, "pubDate");
		if (!$pubdate) $pubdate = GetFirstChildContentByName($nl, "dc:date");
		if ($pubdate) $pubdate = strtotime($pubdate);
		if ($pubdate) $pubdate = strftime("%d.%m.%Y %H:%M:%S", $pubdate);
		$out = $creator;
		if ( ($creator != "") && ($pubdate != "") ) $out .= " @ ";
		$out .= $pubdate;
		if ($out != "") $out = " [size=8]($out)[/size]";


		echo "\n";
		echo "


<a href=\"$link\"><h1>$title</h1></a>$out
[i]$desc[/i]</p>\n";
	}
	echo "
\n";
}
// #############################################################################


function ShowFeed_RDF($XmlRoot) {
	$title = GetFirstChildContentByPath($XmlRoot, "channel/title");
	$link = GetFirstChildContentByPath($XmlRoot, "channel/link");
	$desc = GetFirstChildContentByPath($XmlRoot, "channel/description");


	echo "<h2><a href=\"$link\">$title</a></h2>\n";
	echo "


$desc</p>\n";


	$nodelist = $XmlRoot->children;
	if (!$nodelist) return 0;
	foreach ($nodelist as $nl) {
		$title = GetFirstChildContentByName($nl, "title");
		$link = GetFirstChildContentByName($nl, "link");
		$desc = GetFirstChildContentByName($nl, "description");
		$creator = GetFirstChildContentByName($nl, "author");
		$creator = GetFirstChildContentByName($nl, "dc:creator");
		$pubdate = GetFirstChildContentByName($nl, "pubDate");
		if (!$pubdate) $pubdate = GetFirstChildContentByName($nl, "dc:date");
		if ($pubdate != "") $pubdate = strtotime($pubdate);
		$pubdate = strftime("%d.%m.%Y", $pubdate);
		$out = $creator;
		if ( ($creator != "") && ($pubdate != "") ) $out .= " @ ";
		$out .= $pubdate;
		if ($out != "") $out = " [size=8]($out)[/size]";


		echo "<hr>\n";
		echo "


<a href=\"$link\">[b]$title[/b]</a>$out
<blockquote>[size=8]$desc[/size]</blockquote></p>\n";
	}
	echo "<hr>\n";
}
// #############################################################################


function ShowFeed_SMFXMLFEED($XmlRoot, $Link, $Title, $Desc) {
	echo "<h2><a href=\"$Link\">$Title</a></h2>\n";
	echo "


$Desc</p>\n";


	$nodelist = $XmlRoot->children;
	if (!$nodelist) return 0;
	foreach ($nodelist as $nl) {
		$title = GetFirstChildContentByName($nl, "subject");
		$link = GetFirstChildContentByPath($nl, "link");
		$desc = GetFirstChildContentByName($nl, "body");
		$poster = GetFirstChildContentByPath($nl, "poster/name");
		$posterlink = GetFirstChildContentByPath($nl, "poster/link");
		if ( ($poster != "") && ($posterlink != "") ) $poster = "<a href=\"$posterlink\">$poster</a>";
		$pubdate = GetFirstChildContentByName($nl, "time");
		$out = $poster;
		if ( ($poster != "") && ($pubdate != "") ) $out .= " @ ";
		$out .= $pubdate;
		if ($out != "") $out = " [size=8]($out)[/size]";


		echo "<hr>\n";
		echo "


<a href=\"$link\">[b]$title[/b]</a>$out
<blockquote>[size=8]$desc[/size]</blockquote></p>\n";
	}
	echo "<hr>\n";
}
// #############################################################################


function GetAttribByName($XmlNode, $sName, $bCase = False) {
	if (!$bCase) $sName = strtolower($sName);
	if (!$bCase) $aAttributes = array_change_key_case($XmlNode->attributes, CASE_LOWER);
	return $aAttributes[$sName];
}
// #############################################################################


function GetChildrenByPathAndName($XmlRoot, $sPath, $sName, $bCase = False) {
	$aPath = GetPath($sPath);
	$oRes = array();
	$oNode = $XmlRoot;
	foreach ($aPath as $p) {
		$oNode = GetFirstChildByName($oNode, $p);
		if (!$oNode) return False;
	}
	foreach ($oNode->children as $c) {
		if ($bCase) {
			if (strcmp($c->name, $sName) == 0) $oRes[count($oRes)] = $c;
		} else {
			if (strcasecmp($c->name, $sName) == 0) $oRes[count($oRes)] = $c;
		}
	}
	return $oRes;
}
// #############################################################################


function GetChildrenByPath($XmlRoot, $sPath, $bCase = False) {
	$aPath = GetPath($sPath);
	$oNode = $XmlRoot;
	foreach ($aPath as $p) {
	$oNode = GetFirstChildByName($oNode, $p, $bCase);
		if (!$oNode) return False;
	}
	return $oNode->children;
}
// #############################################################################


function GetFirstChildContentByPath($XmlRoot, $sPath, $bCase = False) {
	$oNode = GetFirstChildByPath($XmlRoot, $sPath, $bCase);
	if ($oNode) return $oNode->content; else return "";
}
// #############################################################################


function GetFirstChildByPath($XmlRoot, $sPath, $bCase = False) {
	$aPath = GetPath($sPath);
	$oNode = $XmlRoot;
	foreach ($aPath as $p) {
		$oNode = GetFirstChildByName($oNode, $p, $bCase);
		if (!$oNode) return False;
	}
	return $oNode;
}
// #############################################################################


function GetFirstChildContentByName($oParent, $sName, $bCase = False) {
	$oNode = GetFirstChildByName($oParent, $sName, $bCase);
	if ($oNode) return $oNode->content; else return "";
}
// #############################################################################


function GetFirstChildByName($oParent, $sName, $bCase = False) {
	if (count($oParent->children) < 1) return 0;
	if ($bCase) $sName = strtolower($sName);
	foreach ($oParent->children as $c) {
		if ($bCase) {
			if (strcmp($c->name, $sName) == 0) return $c;
		} else {
			if (strcasecmp($c->name, $sName) == 0) return $c;
		}
	}
	return False;
}
// #############################################################################


function GetPath($sPath, $iMax = 32) {
	return split("/", $sPath, $iMax);
}
// #############################################################################


class XmlElement {
	var $name;
	var $attributes;
	var $content;
	var $children;
};
// #############################################################################


function ParseXmlFile($sFileName) {
	$handle = @fopen($sFileName, "rb");
	$xml = '';
	if (!$handle) return False;
	while (!feof($handle)) {
		$xml .= fread($handle, 4096);
	}
	fclose($handle);


	$parser = xml_parser_create();
	xml_parser_set_option($parser, XML_OPTION_CASE_FOLDING, 0);
	xml_parser_set_option($parser, XML_OPTION_SKIP_WHITE, 1);
	xml_parser_set_option($parser, XML_OPTION_TARGET_ENCODING, "ISO-8859-1");
	xml_parse_into_struct($parser, $xml, $tags);
	xml_parser_free($parser);


	$elements = array();
	$stack = array();
	foreach ($tags as $tag) {
		$index = count($elements);
		if ( ($tag['type'] == "complete") || ($tag['type'] == "open") ) {
			$elements[$index] = new XmlElement;
			if (isset($tag['tag'])) $elements[$index]->name = $tag['tag'];
			if (isset($tag['attributes'])) $elements[$index]->attributes = $tag['attributes'];
			if (isset($tag['value'])) $elements[$index]->content = $tag['value'];
			if ($tag['type'] == "open") {
			$elements[$index]->children = array();
			$stack[count($stack)] = &$elements;
			$elements = &$elements[$index]->children;
		}
	}
		if ($tag['type'] == "close") {
			$elements = &$stack[count($stack) - 1];
			unset($stack[count($stack) - 1]);
		}
	}
	return $elements[0];
}
// #############################################################################
?>