Обрезка rss

<?php

/*
Created by Global Syndication's RSS Parser
http://www.globalsyndication.com/rss-parser
*/

set_time_limit(0);

$file = "http://news.google.com/?ned=us&topic=po&output=rss";

$rss_channel = array();
$currently_writing = "";
$main = "";
$item_counter = 0;

function startElement($parser, $name, $attrs) {
global $rss_channel, $currently_writing, $main;
switch($name) {
case "RSS":
case "RDF:RDF":
case "ITEMS":
$currently_writing = "";
break;
case "CHANNEL":
$main = "CHANNEL";
break;
case "IMAGE":
$main = "IMAGE";
$rss_channel["IMAGE"] = array();
break;
case "ITEM":
$main = "ITEMS";
break;
default:
$currently_writing = $name;
break;
}
}

function endElement($parser, $name) {
global $rss_channel, $currently_writing, $item_counter;
$currently_writing = "";
if ($name == "ITEM") {
$item_counter++;
}
}

function characterData($parser, $data) {
global $rss_channel, $currently_writing, $main, $item_counter;
if ($currently_writing != "") {
switch($main) {
case "CHANNEL":
if (isset($rss_channel[$currently_writing])) {
$rss_channel[$currently_writing] .= $data;
} else {
$rss_channel[$currently_writing] = $data;
}
break;
case "IMAGE":
if (isset($rss_channel[$main][$currently_writing])) {
$rss_channel[$main][$currently_writing] .= $data;
} else {
$rss_channel[$main][$currently_writing] = $data;
}
break;
case "ITEMS":
if (isset($rss_channel[$main][$item_counter][$currently_writing])) {
$rss_channel[$main][$item_counter][$currently_writing] .= $data;
} else {
$rss_channel[$main][$item_counter][$currently_writing] = $data;
}
break;
}
}
}

$xml_parser = xml_parser_create();
xml_set_element_handler($xml_parser, "startElement", "endElement");
xml_set_character_data_handler($xml_parser, "characterData");
if (!($fp = fopen($file, "r"))) {
die("could not open XML input");
}

while ($data = fread($fp, 4096)) {
if (!xml_parse($xml_parser, $data, feof($fp))) {
die(sprintf("XML error: %s at line %d",
xml_error_string(xml_get_error_code($xml_parser)),
xml_get_current_line_number($xml_parser)));
}
}
xml_parser_free($xml_parser);

// output HTML
// print ("<div class=\"channelname\">" . $rss_channel["TITLE"] . "</div>");

if (isset($rss_channel["ITEMS"])) {
if (count($rss_channel["ITEMS"]) > 0) {
for($i = 0;$i < count($rss_channel["ITEMS"]);$i++) {
if (isset($rss_channel["ITEMS"][$i]["LINK"])) {
print ("\n<div class=\"itemtitle\"><a href=\"" . "go.php?url=" . $rss_channel["ITEMS"][$i]["LINK"] . "\">" . $rss_channel["ITEMS"][$i]["TITLE"] . "</a></div>");
} else {
print ("\n<div class=\"itemtitle\">" . $rss_channel["ITEMS"][$i]["TITLE"] . "</div>");
}
print ("<div class=\"itemdescription\">" . $rss_channel["ITEMS"][$i]["DESCRIPTION"] . "</div><br />"); }
} else {
print ("<b>There are no articles in this feed.</b>");
}
}

?>