PHP to pull rss and xml newsfeeds
Posted: Sun May 16, 2004 9:56 pm
I'm looking for a PHP snippet to pull rss and xml newsfeeds. I'm looking for the simplest possible, I'm no PHP expert.
Any ideas?
Any ideas?
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Code: Select all
<?php
class xItem {
var $xTitle;
var $xLink;
var $xDescription;
}
// general vars
$sTitle = "";
$sLink = "";
$sDescription = "";
$arItems = array();
$itemCount = 0;
// ********* Start User-Defined Vars ************
// rss url goes here
$uFile = "http://rssnewsapps.ziffdavis.com/tech.xml";
// descriptions (true or false) goes here
$bDesc = true;
// font goes here
$uFont = "Verdana, Arial, Helvetica, sans-serif";
$uFontSize = "2";
// ********* End User-Defined Vars **************
function startElement($parser, $name, $attrs) {
global $curTag;
$curTag .= "^$name";
}
function endElement($parser, $name) {
global $curTag;
$caret_pos = strrpos($curTag,'^');
$curTag = substr($curTag,0,$caret_pos);
}
function characterData($parser, $data) { global $curTag; // get the Channel information first
global $sTitle, $sLink, $sDescription;
$titleKey = "^RSS^CHANNEL^TITLE";
$linkKey = "^RSS^CHANNEL^LINK";
$descKey = "^RSS^CHANNEL^DESCRIPTION";
if ($curTag == $titleKey) {
$sTitle = $data;
}
elseif ($curTag == $linkKey) {
$sLink = $data;
}
elseif ($curTag == $descKey) {
$sDescription = $data;
}
// now get the items
global $arItems, $itemCount;
$itemTitleKey = "^RSS^CHANNEL^ITEM^TITLE";
$itemLinkKey = "^RSS^CHANNEL^ITEM^LINK";
$itemDescKey = "^RSS^CHANNEL^ITEM^DESCRIPTION";
if ($curTag == $itemTitleKey) {
// make new xItem
$arItems[$itemCount] = new xItem();
// set new item object's properties
$arItems[$itemCount]->xTitle = $data;
}
elseif ($curTag == $itemLinkKey) {
$arItems[$itemCount]->xLink = $data;
}
elseif ($curTag == $itemDescKey) {
$arItems[$itemCount]->xDescription = $data;
// increment item counter
$itemCount++;
}
}
// main loop
$xml_parser = xml_parser_create();
xml_set_element_handler($xml_parser, "startElement", "endElement");
xml_set_character_data_handler($xml_parser, "characterData");
if (!($fp = fopen($uFile,"r"))) {
die ("could not open RSS for input");
}
while ($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($xml_parser);
// write out the items
?>
<html>
<head>
<title><?php echo ($sTitle); ?></title>
<meta name = "description" content = "<?php echo ($sDescription); ?>">
</head>
<body bgcolor = "#FFFFFF">
<font face = "<?php echo($uFont); ?>" size = "<?php echo($uFontSize); ?>"><a href = "<?php echo($sLink); ?>"><?php echo($sTitle); ?></a></font>
<br>
<br>
<?php
for ($i=0;$i<count($arItems);$i++) {
$txItem = $arItems[$i];
?>
<font face = "<?php echo($uFont); ?>" size = "<?php echo($uFontSize); ?>"><a href = "<?php echo($txItem->xLink); ?>"><?php echo($txItem->xTitle); ?></a></font>
<br>
<?php
if ($bDesc) {
?>
<font face = "<?php echo($uFont); ?>" size = "<?php echo($uFontSize); ?>"><?php echo ($txItem->xDescription); ?>
<br>
<?php
}
echo ("<br>");
}
?>Code: Select all
<?php
// I assume you have a class which fetches and parses the RSS-feed.
// and further assume that one method there is called ->fetch()
// to avoid errors: if something is wrong (rss-file not there, server down
// etc. etc.), have it return an empty array;
include_once("rss_parse_class.inc.php");
$rss = &new rss_parse_class;
$rss_source = array( "http://www.bbc.co.uk/syndication/feeds/news/ukfs_news/world/rss091.xml",
"http://www.zend.com/rss.php?type=art",
"http://www.phppatterns.com/rss/"
)
$rss_parsed = array();
foreach($rss_source as $rss_location){
$rss_parsed = array_merge_recursive($rss_parsed,$rss->fetch($rss_location));
}
// now display the what we got
echo "<h3>RSS PARSED</h3><pre>";
print_r($rss_parsed);
echo"</pre>";
?>