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<?php
///
/// Simple RSS parser that returns titles and links only
///
class RSSParser {
var $_insideitem = false;
var $_tag = "";
var $_title = "";
var $_link = "";
var $_items = array();
var $_filter;
var $_url = '';
var $_xml_parser;
var $_success = false;
function RSSParser($url, $filter=array()) {
$this->_url = $url;
$this->_filter = $filter;
$this->_xml_parser = xml_parser_create();
xml_set_object($this->_xml_parser, $this);
xml_set_element_handler($this->_xml_parser, "startElement", "endElement");
xml_set_character_data_handler($this->_xml_parser, "characterData");
$fp = @fopen($url,'r');
if (!$fp) return;
while ($data = fread($fp, 4096)) {
if (!xml_parse($this->_xml_parser, $data, feof($fp))) return;
}
fclose($fp);
xml_parser_free($this->_xml_parser);
$this->_success = true;
}
function success() {
return $this->_success;
}
function getItems() {
if (!$this->_success) return null;
return $this->_items;
}
function startElement($parser, $tagName, $attrs) {
if ($this->_insideitem) {
$this->_tag = $tagName;
} elseif ($tagName == "ITEM") {
$this->_insideitem = true;
}
}
function endElement($parser, $tagName) {
if ($tagName == "ITEM") {
// Filter
$include = 1;
foreach ($this->_filter as $filt) {
if (preg_match($filt, $this->_link)) {
$include = 0;
break;
}
}
if ($include == 1) {
$this->_items[] = array('link'=>htmlspecialchars(trim($this->_link)), 'title'=>htmlspecialchars(trim($this->_title)),'date'=>$this->formatDate($this->_date));
}
$this->_title = "";
$this->_link = "";
$this->_date = "";
$this->_insideitem = false;
}
}
function formatDate($d) {
return strftime("%Y-%m-%d", strtotime($d));
}
function characterData($parser, $data) {
if ($this->_insideitem) {
switch ($this->_tag) {
case "TITLE":
$this->_title .= $data;
break;
case "LINK":
$this->_link .= $data;
break;
case "PUBDATE":
$this->_date .= $data;
break;
}
}
}
}
?>
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