在网站上获取 RSS 提要 [英] getting RSS feeds on website
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问题描述
我去年编写了这段代码，它返回我输入的某个术语的 RSS 提要:
I had this code that I wrote last year and it returns RSS feeds for some term I enter:
<html>
<body>
<form name="form" action="search.php" method="get">
<input type="text" name="q" />
<input type="submit" name="Submit" value="Search" />
</form>
<?php
require_once "RSS.php";
// want to parse the $row[1] variable to get out words, make new string with a + instead of spaces
$college = "college";
$collegelen= strlen($college);
for($i = 0; $i < $collegelen; $i++){
if ($college{$i} == " ")
{$spaced = $spaced . "+";}
else
{$spaced = $spaced . $college{$i};}
}
echo("Yahoo! News RSS");
$rss_yahoo =& new XML_RSS("http://news.search.yahoo.com/news/rss?p=" . $spaced . "&ei=UTF-8&fl=0&x=wrt");
$rss_yahoo->parse();
foreach ($rss_yahoo->getItems() as $item) {
echo "<li><a href=\"" . $item['link'] . "\">" . $item['title'] . "</a></li><br>";
//echo $item['pubDate'] ."<br>";
echo $item['description'] . "<br><br>\n"; }
//echo("Google RSS");
//$rss_google =& new XML_RSS("http://news.google.com/news?hl=en&ned=us&q=" . $spaced . "&ie=UTF-8&nolr=1&output=rss");
//$rss_google->parse();
//foreach ($rss_google->getItems() as $item) {
// echo "<li><a href=\"" . $item['link'] . "\">" . $item['title'] . "</a></li><br>";
// echo $item['description'] . "<br><br>\n"; }
echo("Google RSS");
$rss_google =& new XML_RSS("http://news.google.com/news?hl=en&ned=us&q=" . $spaced . "&ie=UTF-8&nolr=1&output=rss");
$rss_google->parse();
foreach ($rss_google->getItems() as $item) {
echo "<li><a href=\"" . $item['link'] . "\">" . $item['title'] . "</a></li><br>";
- Hide quoted text -
"<br><br>\n"; }
?>
</body>
</html>
RSS.php
<?php
// vim: set expandtab tabstop=4 shiftwidth=4 fdm=marker:
// +----------------------------------------------------------------------+
// | PHP Version 4 |
// +----------------------------------------------------------------------+
// | Copyright (c) 1997-2003 The PHP Group |
// +----------------------------------------------------------------------+
// | This source file is subject to version 2.02 of the PHP license, |
// | that is bundled with this package in the file LICENSE, and is |
// | available at through the world-wide-web at |
// | http://www.php.net/license/2_02.txt. |
// | If you did not receive a copy of the PHP license and are unable to |
// | obtain it through the world-wide-web, please send a note to |
// | license@php.net so we can mail you a copy immediately. |
// +----------------------------------------------------------------------+
// | Authors: Martin Jansen <mj@php.net> |
// | |
// +----------------------------------------------------------------------+
//
// $Id: RSS.php,v 1.28 2006/09/14 08:40:05 clay Exp $
//
require_once 'Parser.php';
/**
* RSS parser class.
*
* This class is a parser for Resource Description Framework (RDF) Site
* Summary (RSS) documents. For more information on RSS see the
* website of the RSS working group (http://www.purl.org/rss/).
*
* @author Martin Jansen <mj@php.net>
* @version $Revision: 1.28 $
* @access public
*/
class XML_RSS extends XML_Parser
{
// {{{ properties
/**
* @var string
*/
var $insideTag = '';
/**
* @var array
*/
var $insideTagStack = array();
/**
* @var string
*/
var $activeTag = '';
/**
* @var array
*/
var $channel = array();
/**
* @var array
*/
var $items = array();
/**
* @var array
*/
var $item = array();
/**
* @var array
*/
var $image = array();
/**
* @var array
*/
var $textinput = array();
/**
* @var array
*/
var $textinputs = array();
/**
* @var array
*/
var $attribs;
/**
* @var array
*/
var $parentTags = array('CHANNEL', 'ITEM', 'IMAGE', 'TEXTINPUT');
/**
* @var array
*/
var $channelTags = array('TITLE', 'LINK', 'DESCRIPTION', 'IMAGE',
'ITEMS', 'TEXTINPUT', 'LANGUAGE', 'COPYRIGHT',
'MANAGINGEditor', 'WEBMASTER', 'PUBDATE', 'LASTBUILDDATE',
'CATEGORY', 'GENERATOR', 'DOCS', 'CLOUD', 'TTL',
'RATING');
/**
* @var array
*/
var $itemTags = array('TITLE', 'LINK', 'DESCRIPTION', 'PUBDATE', 'AUTHOR', 'CATEGORY',
'COMMENTS', 'ENCLOSURE', 'GUID', 'PUBDATE', 'SOURCE',
'CONTENT:ENCODED');
/**
* @var array
*/
var $imageTags = array('TITLE', 'URL', 'LINK', 'WIDTH', 'HEIGHT');
var $textinputTags = array('TITLE', 'DESCRIPTION', 'NAME', 'LINK');
/**
* List of allowed module tags
*
* Currently supported:
*
* Dublin Core Metadata
* blogChannel RSS module
* CreativeCommons
* Content
* Syndication
* Trackback
* GeoCoding
* Media
* iTunes
*
* @var array
*/
var $moduleTags = array('DC:TITLE', 'DC:CREATOR', 'DC:SUBJECT', 'DC:DESCRIPTION',
'DC:PUBLISHER', 'DC:CONTRIBUTOR', 'DC:DATE', 'DC:TYPE',
'DC:FORMAT', 'DC:IDENTIFIER', 'DC:SOURCE', 'DC:LANGUAGE',
'DC:RELATION', 'DC:COVERAGE', 'DC:RIGHTS',
'BLOGCHANNEL:BLOGROLL', 'BLOGCHANNEL:MYSUBSCRIPTIONS',
'BLOGCHANNEL:BLINK', 'BLOGCHANNEL:CHANGES',
'CREATIVECOMMONS:LICENSE', 'CC:LICENSE', 'CONTENT:ENCODED',
'SY:UPDATEPERIOD', 'SY:UPDATEFREQUENCY', 'SY:UPDATEBASE',
'TRACKBACK:PING', 'GEO:LAT', 'GEO:LONG',
'MEDIA:GROUP', 'MEDIA:CONTENT', 'MEDIA:ADULT',
'MEDIA:RATING', 'MEDIA:TITLE', 'MEDIA:DESCRIPTION',
'MEDIA:KEYWORDS', 'MEDIA:THUMBNAIL', 'MEDIA:CATEGORY',
'MEDIA:HASH', 'MEDIA:PLAYER', 'MEDIA:CREDIT',
'MEDIA:COPYRIGHT', 'MEDIA:TEXT', 'MEDIA:RESTRICTION',
'ITUNES:AUTHOR', 'ITUNES:BLOCK', 'ITUNES:CATEGORY',
'ITUNES:DURATION', 'ITUNES:EXPLICIT', 'ITUNES:IMAGE',
'ITUNES:KEYWORDS', 'ITUNES:NEW-FEED-URL', 'ITUNES:OWNER',
'ITUNES:PUBDATE', 'ITUNES:SUBTITLE', 'ITUNES:SUMMARY'
);
/**
* @var array
*/
var $last = array();
// }}}
// {{{ Constructor
/**
* Constructor
*
* @access public
* @param mixed File pointer, name of the RSS file, or an RSS string.
* @param string Source charset encoding, use null (default) to use
* default encoding (ISO-8859-1)
* @param string Target charset encoding, use null (default) to use
* default encoding (ISO-8859-1)
* @return void
*/
function XML_RSS($handle = '', $srcenc = null, $tgtenc = null)
{
if ($srcenc === null && $tgtenc === null) {
$this->XML_Parser();
} else {
$this->XML_Parser($srcenc, 'event', $tgtenc);
}
$this->setInput($handle);
if ($handle == '') {
$this->raiseError('No input passed.');
}
}
// }}}
// {{{ startHandler()
/**
* Start element handler for XML parser
*
* @access private
* @param object XML parser object
* @param string XML element
* @param array Attributes of XML tag
* @return void
*/
function startHandler($parser, $element, $attribs)
{
if (substr($element, 0, 4) == "RSS:") {
$element = substr($element, 4);
}
switch ($element) {
case 'CHANNEL':
case 'ITEM':
case 'IMAGE':
case 'TEXTINPUT':
$this->insideTag = $element;
array_push($this->insideTagStack, $element);
break;
case 'ENCLOSURE' :
$this->attribs = $attribs;
break;
default:
$this->activeTag = $element;
}
}
// }}}
// {{{ endHandler()
/**
* End element handler for XML parser
*
* If the end of <item>, <channel>, <image> or <textinput>
* is reached, this method updates the structure array
* $this->struct[] and adds the field "type" to this array,
* that defines the type of the current field.
*
* @access private
* @param object XML parser object
* @param string
* @return void
*/
function endHandler($parser, $element)
{
if (substr($element, 0, 4) == "RSS:") {
$element = substr($element, 4);
}
if ($element == $this->insideTag) {
array_pop($this->insideTagStack);
$this->insideTag = end($this->insideTagStack);
$this->struct[] = array_merge(array('type' => strtolower($element)),
$this->last);
}
if ($element == 'ITEM') {
$this->items[] = $this->item;
$this->item = '';
}
if ($element == 'IMAGE') {
$this->images[] = $this->image;
$this->image = '';
}
if ($element == 'TEXTINPUT') {
$this->textinputs = $this->textinput;
$this->textinput = '';
}
if ($element == 'ENCLOSURE') {
if (!isset($this->item['enclosures'])) {
$this->item['enclosures'] = array();
}
$this->item['enclosures'][] = array_change_key_case($this->attribs, CASE_LOWER);
$this->attribs = array();
}
$this->activeTag = '';
}
// }}}
// {{{ cdataHandler()
/**
* Handler for character data
*
* @access private
* @param object XML parser object
* @param string CDATA
* @return void
*/
function cdataHandler($parser, $cdata)
{
if (in_array($this->insideTag, $this->parentTags)) {
$tagName = strtolower($this->insideTag);
$var = $this->{$tagName . 'Tags'};
if (in_array($this->activeTag, $var) ||
in_array($this->activeTag, $this->moduleTags)) {
$this->_add($tagName, strtolower($this->activeTag),
$cdata);
}
}
}
// }}}
// {{{ defaultHandler()
/**
* Default handler for XML parser
*
* @access private
* @param object XML parser object
* @param string CDATA
* @return void
*/
function defaultHandler($parser, $cdata)
{
return;
}
// }}}
// {{{ _add()
/**
* Add element to internal result sets
*
* @access private
* @param string Name of the result set
* @param string Fieldname
* @param string Value
* @return void
* @see cdataHandler
*/
function _add($type, $field, $value)
{
if (empty($this->{$type}) || empty($this->{$type}[$field])) {
$this->{$type}[$field] = $value;
} else {
$this->{$type}[$field] .= $value;
}
$this->last = $this->{$type};
}
// }}}
// {{{ getStructure()
/**
* Get complete structure of RSS file
*
* @access public
* @return array
*/
function getStructure()
{
return (array)$this->struct;
}
// }}}
// {{{ getchannelInfo()
/**
* Get general information about current channel
*
* This method returns an array containing the information
* that has been extracted from the <channel>-tag while parsing
* the RSS file.
*
* @access public
* @return array
*/
function getChannelInfo()
{
return (array)$this->channel;
}
// }}}
// {{{ getItems()
/**
* Get items from RSS file
*
* This method returns an array containing the set of items
* that are provided by the RSS file.
*
* @access public
* @return array
*/
function getItems()
{
return (array)$this->items;
}
// }}}
// {{{ getImages()
/**
* Get images from RSS file
*
* This method returns an array containing the set of images
* that are provided by the RSS file.
*
* @access public
* @return array
*/
function getImages()
{
return (array)$this->images;
}
// }}}
// {{{ getTextinputs()
/**
* Get text input fields from RSS file
*
* @access public
* @return array
*/
function getTextinputs()
{
return (array)$this->textinputs;
}
// }}}
}
?>
但是，此代码不再起作用，或者我没有正确测试它...我在 mac 上的 xampp 上运行它.
However, this code doesn't work anymore or I am not testing it correctly...I am running it on xampp on mac.
我想做这样的事情:
用户输入一个词，我想显示来自雅虎、谷歌或纽约时报的 RSS 提要.
The user enters a term and I want to display the RSS feeds from Yahoo, Google or NYTimes.
谢谢！
去年我从一个站点获得了两个文件 RSS.php 和 Parser.php，现在看起来该站点已关闭.我想看看是否有人可以提供另一种解决方案.谢谢！
I got two files RSS.php and Parser.php from a site last year and now it looks like the site is down. I am trying to see if anyone can offer another solution. Thanks!
推荐答案
也许你可以试试 SimplePie.它易于使用并具有积极的发展.您可以立即开始使用，或阅读文档了解更多高级用法.
Maybe you could try SimplePie. It's easy to use and have active development. You can start using right away, or reading the documentation for more advance usage.
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