I am trying to test out an rss feed script, but when I try to goto the link I receive the following error:

XML error: no element found at line 1

Here is the rss.php script:<?php

// Include the file that does all the work
include("rssreader.php");

// This is the URL to the actual RSS feed. Change this value
// if you want to show a different feed.
$url="http://securityfocus.com/rss/news.xml";

// Create an instance of the rssFeed object, passing it
// the URL of the feed
$rss=new rssFeed($url);

// If there was an error getting the data
if($rss->error){
// Show the error
print "<h4>Error:</h4>\n<p><strong>$rss->error</strong></p>";
}else{

// Otherwise, we have the data, so we call the parse method
$rss->parse();

// The showHeading can accept a paramater that will be used
// as the tag to wrap the heading. In this case, we're wrapping
// the title in an <h1> tag
$rss->showHeading("h4");

// Display the image if there is one
$rss->showImage("left");

// If the RSS feed provides a link
if($rss->link){
// Display it
print "<p>Provided courtesy of:<br>\n";
$rss->showLink();
}

// Display the description
$rss->showDescription();

// Show the news stories
$rss->showStories();
}
?>


And the rssreader.php <?php

// Generic container for the complete RSS feed
class rssFeed{
var $title="";
var $copyright="";
var $description="";
var $image;
var $stories=array();
var $url="";
var $xml="";
var $link="";
var $error="";
var $maxstories=0;

// public methods
function parse(){
$parser=xml_parser_create();
xml_set_element_handler($parser, "startElement", "endElement");
xml_set_character_data_handler($parser, "characterData");
xml_parse($parser, $this->xml, true)
or die(sprintf("XML error: %s at line %d",
xml_error_string(xml_get_error_code($parser)),
xml_get_current_line_number($parser)));
xml_parser_free($parser);
}

function showHeading($tag=""){
$tag=$tag?$tag:"h1";
if($this->title)
print "<$tag>$this->title</$tag>\n";
}

function showImage($align=""){
$this->image->show($align);
}

function showLink(){
if($this->link)
print "<a href=\"$this->link\">$this->link</a>\n";
}
function showDescription(){
if($this->description)
print "<p>$this->description</p>\n";
}

function showStories(){
echo "<dl>\n";
$n=0;
foreach($this->stories as $story){
$n++;
if ($this->maxstories && $n>$this->maxstories)
break;
$story->show();
}
echo "</dl>\n";
}

// Methods used internally
// Constructor: Expects one string parameter that is the URI of the RSS feed
function rssFeed($uri=''){
$this->image=new rssImage();
if($uri){
$this->url=$uri;
$this->getFeed();
} else {
$this->error="No URL for RSS feed";
}
}

// Retrieves the XML from the RSS supplier
function getFeed(){
// if we have a URL
if ($this->url){
if (extension_loaded('curl')) {
$this->xml=$this->getRemoteFile($this->url);
}
}
}

function getRemoteFile($url){
$s=new gwSocket();
if($s->getUrl($url)){
if(is_array($s->headers)){
$h=array_change_key_case($s->headers, CASE_LOWER);
if($s->error) // failed to connect with host
$buffer=$this->errorReturn($s->error);
elseif(preg_match("/404/",$h['status'])) // page not found
$buffer=$this->errorReturn("Page Not Found");
elseif(preg_match("/xml/i",$h['content-type'])) // got XML back
$buffer=$s->page;
else // got a page, but wrong content type
$buffer=$this->errorReturn("The server did not return XML. The content type returned was ".$h['content-type']);
} else {
$buffer=$this->errorReturn("An unknown error occurred.");
}
}else{
$buffer=$this->errorReturn("An unknown error occurred.");
}
return $buffer;
}

function errorReturn($error){
$retVal="<?xml version=\"1.0\" ?>\n".
"<rss version=\"2.0\">\n".
"\t<channel>\n".
"\t\t<title>Failed to Get RSS Data</title>\n".
"\t\t<description>An error was ecnountered attempting to get the RSS data: $error</description>\n".
"\t\t<pubdate>".date("D, d F Y H:i:s T")."</pubdate>\n".
"\t\t<lastbuilddate>".date("D, d F Y H:i:s T")."</lastbuilddate>\n".
"\t</channel>\n".
"</rss>\n";
return $retVal;
}

function addStory($o){
if(is_object($o))
$this->stories[]=$o;
else
$this->error="Type mismatach: expected object";
}

}

class rssImage{
var $title="";
var $url="";
var $link="";
var $width=0;
var $height=0;

function show($align=""){
if($this->url){
if($this->link)
print "<a href=\"$this->link\">";
print "<img src=\"$this->url\" style=\"border:none;\"";
if($this->title)
print " alt=\"$this->title\"";
if($this->width)
print " width=\"$this->width\" height=\"$this->height\"";
if($align)
print " align=\"$align\"";
print ">";
if($this->link)
print "</a>";
}
}
}

class newsStory{
var $title="";
var $link="";
var $description="";
var $pubdate="";

function show(){
if($this->title){
if($this->link){
echo "<dt><a href=\"$this->link\">$this->title</a></dt>\n";
}elseif($this->title){
echo "<dt>$this->title</a></dt>\n";
}
echo "<dd>";
if($this->pubdate)
echo "<i>$this->pubdate</i> - ";
if($this->description)
echo "$this->description";
echo "</dd>\n";
}
}
}


class gwSocket{
var $Name="gwSocket";
var $Version="0.1";
var $userAgent="Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.0)";
var $headers;
var $page="";
var $result="";
var $redirects=0;
var $maxRedirects=3;
var $error="";

function getUrl( $url ) {
$retVal="";
$url_parsed = parse_url($url);
$scheme = $url_parsed["scheme"];
$host = $url_parsed["host"];
$port = $url_parsed["port"]?$url_parsed["port"]:"80";
$user = $url_parsed["user"];
$pass = $url_parsed["pass"];
$path = $url_parsed["path"]?$url_parsed["path"]:"/";
$query = $url_parsed["query"];
$anchor = $url_parsed["fragment"];

if (!empty($host)){

// attempt to open the socket
if($fp = fsockopen($host, $port, $errno, $errstr, 2)){

$path .= $query?"?$query":"";
$path .= $anchor?"$anchor":"";

// this is the request we send to the host
$out = "GET $path ".
"HTTP/1.0\r\n".
"Host: $host\r\n".
"Connection: Close\r\n".
"User-Agent: $this->userAgent\r\n";
if($user)
$out .= "Authorization: Basic ".
base64_encode("$user:$pass")."\r\n";
$out .= "\r\n";

fputs($fp, $out);
while (!feof($fp)) {
$retVal.=fgets($fp, 128);
}
fclose($fp);
} else {
$this->error="Failed to make connection to host.";//$errstr;
}
$this->result=$retVal;
$this->headers=$this->parseHeaders(trim(substr($retVal,0,strpos($retVal,"\r\n\r\n"))));
$this->page=trim(stristr($retVal,"\r\n\r\n"))."\n";
if(isset($this->headers['Location'])){
$this->redirects++;
if($this->redirects<$this->maxRedirects){
$location=$this->headers['Location'];
$this->headers=array();
$this->result="";
$this->page="";
$this->getUrl($location);
}
}
}
return (!$retVal="");
}

function parseHeaders($s){
$h=preg_split("/[\r\n]/",$s);
foreach($h as $i){
$i=trim($i);
if(strstr($i,":")){
list($k,$v)=explode(":",$i);
$hdr[$k]=substr(stristr($i,":"),2);
}else{
if(strlen($i)>3)
$hdr[]=$i;
}
}
if(isset($hdr[0])){
$hdr['Status']=$hdr[0];
unset($hdr[0]);
}
return $hdr;
}

}

/*
end of classes - global functions follow
*/

function startElement($parser, $name, $attrs) {
global $insideitem, $tag, $isimage;
$tag = $name;
if($name=="IMAGE")
$isimage=true;
if ($name == "ITEM") {
$insideitem = true;
}
}

function endElement($parser, $name) {
global $insideitem, $title, $description, $link, $pubdate, $stories, $rss, $globaldata, $isimage;
$globaldata=trim($globaldata);
// if we're finishing a news item
if ($name == "ITEM") {
// create a new news story object
$story=new newsStory();
// assign the title, link, description and publication date
$story->title=trim($title);
$story->link=trim($link);
$story->description=trim($description);
$story->pubdate=trim($pubdate);
// add it to our array of stories
$rss->addStory($story);
// reset our global variables
$title = "";
$description = "";
$link = "";
$pubdate = "";
$insideitem = false;
} else {
switch($name){
case "TITLE":
if(!$isimage)
if(!$insideitem)
$rss->title=$globaldata;
break;
case "LINK":
if(!$insideitem)
$rss->link=$globaldata;
break;
case "COPYRIGHT":
if(!$insideitem)
$rss->copyright=$globaldata;
break;
case "DESCRIPTION":
if(!$insideitem)
$rss->description=$globaldata;
break;
}
}
if($isimage){
switch($name){
case "TITLE": $rss->image->title=$globaldata;break;
case "URL": $rss->image->url=$globaldata;break;
case "LINK": $rss->image->link=$globaldata;break;
case "WIDTH": $rss->image->width=$globaldata;break;
case "HEIGHT": $rss->image->height=$globaldata;break;
}
}
if($name=="IMAGE")
$isimage=false;
$globaldata="";
}

function characterData($parser, $data) {
global $insideitem, $tag, $title, $description, $link, $pubdate, $globaldata;
if ($insideitem) {
switch ($tag) {
case "TITLE":
$title .= $data;
break;
case "DESCRIPTION":
$description .= $data;
break;
case "LINK":
$link .= $data;
break;
case "PUBDATE":
case "DC:DATE":
$pubdate .= $data;
break;
}
} else {
$globaldata.=$data;
}
}

?>

Any help would be greatly appreciated.

I dont know much abt xml_parse - but it seems it doesnt work sometimes.

<pre>
<?php
$url = "http://securityfocus.com/rss/news.xml";
$contents = file_get_contents($url);
preg_match_all("/<item>(.*?)<\/item>/is", $contents, $item_matches);
while (list($item_key, $item_val) = each($item_matches[1]))
{
$item_val = preg_replace("/<!\[CDATA\[(.*?)\]\]/is", "\$1", $item_val);

if (preg_match("/<title>(.*?)<\/title>/is", $item_val, $matches))
$News['title'][$item_key] = $matches[1];
else
$News['title'][$item_key] = "";

if (preg_match("/<link>(.*?)<\/link>/is", $item_val, $matches))
$News['link'][$item_key] = $matches[1];
else
$News['link'][$item_key] = "";

if (preg_match("/<description>(.*?)<\/description>/is", $item_val, $matches))
$News['description'][$item_key] = $matches[1];
else
$News['description'][$item_key] = "";

$News['description'][$item_key] = strip_tags($News['description'][$item_key]);

if (preg_match("/<pubDate>(.*?)<\/pubDate>/is", $item_val, $matches))
$News['pubDate'][$item_key] = $matches[1];
else
$News['pubDate'][$item_key] = "";
}
print_r($News);
?>

I tried your code, but receive the following:

Warning: preg_match_all(): Unknown modifier 't' in /home/chris/public_html/rss2.php on line 4

Warning: Variable passed to each() is not an array or object in /home/chris/public_html/rss2.php on line 5

<pre>
<?php
$url = "http://securityfocus.com/rss/news.xml";
$contents = file_get_contents($url);
preg_match_all("/<item>(.*?)<\/item>/is", $contents, $item_matches);
while (list($item_key, $item_val) = each($item_matches[1]))
{
$item_val = preg_replace("/<!\[CDATA\[(.*?)\]\]/is", "\$1", $item_val);

if (preg_match("/<title>(.*?)<\/title>/is", $item_val, $matches))
$News['title'][$item_key] = $matches[1];
else
$News['title'][$item_key] = "";

if (preg_match("/<link>(.*?)<\/link>/is", $item_val, $matches))
$News['link'][$item_key] = $matches[1];
else
$News['link'][$item_key] = "";

if (preg_match("/<description>(.*?)<\/description>/is", $item_val, $matches))
$News['description'][$item_key] = $matches[1];
else
$News['description'][$item_key] = "";

$News['description'][$item_key] = strip_tags($News['description'][$item_key]);

if (preg_match("/<pubDate>(.*?)<\/pubDate>/is", $item_val, $matches))
$News['pubDate'][$item_key] = $matches[1];
else
$News['pubDate'][$item_key] = "";
}
print_r($News);
?>

For some reason in th php tags (enclosed by [ ])
<title>(.*?)<\/title>
is getting converted to
<title>(.*?)</title>
See the difference ? The backslash \ is getting ripped off !

Ahh, I see that now, thanks!