A powerful RSS parser which parses not only the minimum requirements of a feed but also, author, copyright, most of the Dublin Core tags, ENT(Easy News Topic), rvw, images, and enclosures. visit http://deecodameeko.com/code.

By : deecodameeko

<?

/******************************************************************************************************************
*Date: October 21, 2004
*Author: Dan Cochran
*
*Description: This will gather all basic information contained in a rss feed. Along with basic functionality,
* the RSSParser will also parse most commonly used Dublin Core tags along with enlcosure attributes,
* Well-Fomed comments RSS tag, image, and rvw tags. It will also recover ENT(Easy News Topic) tags as well.
* Please see the example at the bottom to see how to use the class. and most importantly , have fun!
*
*email me with question or comments/bugs @ dan@deecodameeko.com
*
*URL: http://deecodameeko.com/code
*
*//sample implementation the class
*
*$rs = new RSSParser(); //create a new instance
*$rs->parse($url_or_filename, $rs);
*$rss['channel'] = $rs->get_channel();
*$rss['items'] = $rs->get_items();
*$rss['image'] = $rs->get_image();
*$rss['rvws'] = $rs->get_rvw();
*$rss['ratings'] = $rs->get_rating();
*$rss['textinput'] = $rs->get_textinput();
*
*print_r($rss["channel"]);
*print_r($rss["items"]);*/
*
*Disclaimer:
*Copyright (C) 2005 Dan Cochran
*
*This program is free software; you can redistribute it and/or
*modify it under the terms of the GNU General Public License
*as published by the Free Software Foundation; either version 2
*of the License, or (at your option) any later version.
*
*This program is distributed in the hope that it will be useful,
*but WITHOUT ANY WARRANTY; without even the implied warranty of
*MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
*GNU General Public License for more details.
*
*You should have received a copy of the GNU General Public License
*along with this program; if not, write to the Free Software
*Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
******************************************************************************************************************/


class RSSParser{

var $insideitem = false;
var $insideimage = false;
var $insidervw = false;
var $insiderating = false;
var $insidetext = false;
var $url = "";
var $enclosure = '';
var $ent = array();

var $cTitle, $cLink, $cDesc, $cLanguage, $cCopyright, $cManageEditor, $cWebmaster, $cLastBuild, $cRating, $cDocs, $cCategory, $cGenerator, $cPubDate;
var $imTitle, $imUrl, $imLink, $imWidth, $imHeight;
var $iTitle, $iLink, $iDesc, $iAuthor, $iComments, $iEnclosure, $iGuid, $iPudDate, $iSource, $iCloud;
var $iCategory = array();
var $rvLink;
var $dcIdentifier, $dcType, $dcTitle, $dcCreator, $dcPublisher, $dcDate, $dcmin, $dcmax, $dcvalue, $dcContributor, $dcFormat,
$dcSubject, $dcSource, $dcLanguage, $dcRelation, $dcCoverage, $dcRights, $dcDescription;
var $contenEncoded, $wfwComment;
var $tTitle, $tLink, $tDesc, $tName;
var $i; //counter
var $result;

function parse($url, $rss_parser){

$xml_parser = xml_parser_create();
//$rss_parser = new RSSParser();
xml_set_object($xml_parser,&$rss_parser);
xml_set_element_handler($xml_parser, "startElement", "endElement");
xml_set_character_data_handler($xml_parser, "characterData");
if($fp = fopen($url,"r")){

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

fclose($fp);
xml_parser_free($xml_parser);
}
else{
echo "error, could not open $url\n";
}
}

function get_channel(){
return($GLOBALS['channel']);
}

function get_items(){
return($GLOBALS['items']);
}

function get_image(){
if(isset($GLOBALS['image'])){
return($GLOBALS['image']);
}
}

function get_rvw(){
if(isset($GLOBALS['rvw'])){
return($GLOBALS['rvw']);
}
}

function get_rating(){
if(isset($GLOBALS['rating'])){
return($GLOBALS['rating']);
}
}

function get_textinput(){
if(isset($GLOBALS['textinput'])){
return($GLOBALS['textinput']);
}
}

function startElement($parser, $tagName, $attrs) {

$this->tag = $tagName;

if($tagName == "ITEM") {
$this->insideitem = true;
}elseif($tagName == "IMAGE") {
$this->insideimage = true;
}elseif($tagName == "RVW:ITEM"){
$this->insidervw = true;
}elseif ($tagName == "RVW:RATING"){
$this->insiderating = true;
}elseif($tagName == 'TEXTINPUT'){
$this->insidetext = true;
}

if($tagName == "ENCLOSURE") {
$this->enclosure = $attrs;
}elseif ($tagName == 'ENT:TOPIC'){
$this->ent = $attrs;
}
elseif($tagName == 'ENT:CLOUD'){
$this->iCloud = $attrs;
}
}

function characterData($parser, $data) {
if ($this->insideitem) {
switch ($this->tag) {
case "TITLE":
$this->iTitle .= $data;
$this->i++;
break;
case "DESCRIPTION":
$this->iDesc .= $data;
break;
case "LINK":
$this->iLink .= $data;
break;
case "AUTHOR":
$this->iAuthor .= $data;
break;
case "CATEGORY":
$this->iCategory[] .= $data;
break;
case "COMMENTS":
$this->iComments .= $data;
break;
case "PUBDATE":
$this->iPudDate .= $data;
break;
case "SOURCE":
$this->iSource .= $data;
break;
case "GUID":
$this->iGuid .= $data;
break;
case "DC:CONTRIBUTOR":
$this->dcContributor .= $data;
break;
case "DC:FORMAT":
$this->dcFormat .= $data;
break;
case "DC:RELATION":
$this->dcRelation .= $data;
break;
case "DC:COVERAGE":
$this->dcCoverage .= $data;
break;
case "DC:IDENTIFIER":
$this->dcIdentifier .= $data;
break;
case "DC:TYPE":
$this->dcType .= $data;
break;
case "DC:TITLE":
$this->dcTitle .= $data;
break;
case "DC:CREATOR":
$this->dcCreator .= $data;
break;
case "DC:PUBLISHER":
$this->dcPublisher .= $data;
break;
case "DC:DATE":
$this->dcDate .= $data;
break;
case "DC:SUBJECT":
$this->dcSubject .= $data;
break;
case "DC:SOURCE":
$this->dcSource .= $data;
break;
case "DC:LANGUAGE":
$this->dcLanguage .= $data;
break;
case "DC:RIGHTS":
$this->dcRights .= $data;
break;
case "DC:DESCRIPTION":
$this->dcDescription .= $data;
break;
case "CONTENT:ENCODED":
$this->contenEncoded .= $data;
break;
case "WFW:COMMENTRSS":
$this->wfwComment .= $data;
break;
}

}
if($this->insideimage){
switch ($this->tag) {
case "TITLE":
$this->imTitle .= $data;
break;
case "URL":
$this->imUrl .= $data;
break;
case "LINK":
$this->imLink .= $data;
break;
case "WIDTH":
$this->imWidth .= $data;
break;
case "HEIGHT":
$this->imHeight .= $data;
break;
}
}
if($this->insidervw){
switch ($this->tag) {
case "RVW:LINK":
$this->rvLink .= $data;
break;
}
}
if($this->insiderating){
switch ($this->tag) {
case "RVW:MINIMUM":
$this->rvmin .= $data;
break;
case "RVW:MAXIMUM":
$this->rvmax .= $data;
break;
case "RVW:VALUE":
$this->rvvalue .= $data;
break;
}
}
if($this->insidetext){
switch ($this->tag) {
case "TITLE":
$this->tTitle .= $data;
break;
case "DESCRIPTION":
$this->tDesc .= $data;
break;
case "LINK":
$this->tLink .= $data;
break;
case "NAME":
$this->tName .= $data;
break;
}
}
if(!$this->insideitem && ! $this->insidervw && !$this->insiderating && !$this->insidetext && !$this->insideimage){
switch ($this->tag) {
case "TITLE":
$this->cTitle .= $data;
break;
case "LINK":
$this->cLink .= $data;
break;
case "DESCRIPTION":
$this->cDesc .= $data;
break;
case "LANGUAGE":
$this->cLanguage .= $data;
break;
case "COPYRIGHT":
$this->cCopyright .= $data;
break;
case "MANAGINGEDITOR":
$this->cManageEditor .= $data;
break;
case "WEBMASTER":
$this->cWebmaster .= $data;
break;
case "LASTBUILDDATE":
$this->cLastBuild .= $data;
case "GENERATOR":
$this->cGenerator .= $data;
break;
case "RATING":
$this->cRating .= $data;
break;
case "DOCS":
$this->cDocs .= $data;
break;
case "CATEGORY":
$this->cCategory .= $data;
break;
case "PUBDATE":
$this->cPubDate .= $data;
}

}
}

function endElement($parser, $tagName) {


if ($tagName == "ITEM") {

$this->result['item']["title"] = $this->iTitle;
$this->result['item']["description"] = $this->iDesc;
$this->result['item']["link"] = $this->iLink;
$this->result['item']["author"] = $this->iAuthor;
$this->result['item']['category'] = $this->iCategory;
$this->result['item']['comments'] = $this->iComments;
$this->result['item']['pubdate'] = $this->iPudDate;
$this->result['item']["source"] = $this->iSource;
$this->result['item']['enclosure'] = $this->enclosure;
$this->result['item']['guid'] = $this->iGuid;
$this->result['item']['ent'] = $this->ent;
$this->result['item']['cloud'] = $this->iCloud;
$this->result['item']['dc:identifier'] = $this->dcIdentifier;
$this->result['item']['dc:type'] = $this->dcType;
$this->result['item']['dc:title'] = $this->dcTitle;
$this->result['item']['dc:creator'] = $this->dcCreator;
$this->result['item']['dc:publisher'] = $this->dcPublisher;
$this->result['item']['dc:date'] = $this->dcDate;
$this->result['item']['dc:contributor'] = $this->dcContributor;
$this->result['item']['dc:format'] = $this->dcFormat;
$this->result['item']['dc:source'] = $this->dcSource;
$this->result['item']['dc:language'] = $this->dcLanguage;
$this->result['item']['dc:relation'] = $this->dcRelation;
$this->result['item']['dc:coverage'] = $this->dcCoverage;
$this->result['item']['dc:rights'] = $this->dcRights;
$this->result['item']['dc:desc'] = $this->dcDescription;
$this->result['item']['dc:subject'] = $this->dcSubject;
$this->result['item']['content:encoded'] = $this->contenEncoded;
$this->result['item']['wfw'] = $this->wfwComment;

$GLOBALS['items'][] = $this->result['item'];
$this->iTitle = "";
$this->iDesc = "";
$this->iLink = "";
$this->iAuthor = "";
$this->iCategory = array();
$this->iComments = '';
$this->iPudDate = "";
$this->iSource = "";
$this->enclosure = "";
$this->guid = "";
$this->iGuid = '';
$this->ent = array();
$this->iCloud = array();
$this->dcLink = "";
$this->dcIdentifier = "";
$this->dcType = "";
$this->dcTitle = "";
$this->dcCreator = "";
$this->dcPublisher = "";
$this->dcDate = "";
$this->dcContributor = "";
$this->dcFormat = "";
$this->dcSource = "";
$this->dcLanguage = "";
$this->dcRelation = "";
$this->dcCoverage = "";
$this->dcRights = "";
$this->dcDescription = "";
$this->dcSubject = "";
$this->contenEncoded = "";
$this->wfwComment = "";
$this->insideitem = false;
}
if ($tagName == 'IMAGE'){

$this->result['image']['title'] = $this->imTitle;
$this->result['image']['url'] = $this->imUrl;
$this->result['image']['link'] = $this->imLink;
$this->result['image']['width'] = $this->imWidth;
$this->result['image']['height'] = $this->imHeight;


$GLOBALS['image'] = $this->result['image'];
$this->imTitle = "";
$this->imUrl = "";
$this->imLink = "";
$this->imWidth = "";
$this->imHeight = "";
$this->insideimage = false;

}
if ($tagName == 'RVW:ITEM'){

$this->result['rvw']['link'] = $this->rvLink;

$GLOBALS['rvw'][$i] = $this->result['rvw'];
$this->insidervw = false;
}
if ($tagName == 'RVW:RATING'){

$this->result['rating']['min'] = $this->rvmin;
$this->result['rating']['max'] = $this->rvmax;
$this->result['rating']['value'] = $this->rvvalue;

$GLOBALS['rating'][$i] = $this->result['rating'];
$this->rvmin = "";
$this->rvmax = "";
$this->rvvalue = "";
$this->insiderating = false;
}
if($tagName == 'CHANNEL'){
$this->result['channel']['title'] = $this->cTitle;
$this->result['channel']['link'] = $this->cLink;
$this->result['channel']['desc'] = $this->cDesc;
$this->result['channel']['lang'] = $this->cLanguage;
$this->result['channel']['copy'] = $this->cCopyright;
$this->result['channel']['editor'] = $this->cManageEditor;
$this->result['channel']['webmaster'] = $this->cWebmaster;
$this->result['channel']['lastbuild'] = $this->cLastBuild;
$this->result['channel']["generator"] = $this->cGenerator;
$this->result['channel']['rating'] = $this->cRating;
$this->result['channel']['docs'] = $this->cDocs;
$this->result['channel']['category'][] = $this->cCategory;
$this->result['channel']['pubDate'] = $this->cPubDate;

$GLOBALS['channel'] = $this->result['channel'];
$this->cTitle = '';
$this->cLink = '';
$this->cDesc = '';
$this->cLanguage = '';
$this->cCopyright = '';
$this->cManageEditor = '';
$this->cWebmaster = '';
$this->cLastBuild = '';
$this->cGenerator = '';
$this->cRating = '';
$this->cDocs = '';
$this->cPubDate = '';
}
if ($tagName == 'TEXTINPUT'){

$this->result['textinput']['title'] = $this->tTitle;
$this->result['textinput']['name'] = $this->tName;
$this->result['textinput']['link'] = $this->tLink;
$this->result['textinput']['description'] = $this->tDesc;

$GLOBALS['textinput'] = $this->result['textinput'];
$this->tTitle = "";
$this->tDesc = "";
$this->tLink = "";
$this->tName = "";
$this->insidetext = false;
}
}

}//end class

?>

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