setLimit(5);
$feed = $RSS->getRSS('http://rss.slashdot.org/Slashdot/slashdot');
$meta = $RSS->getChannel();
echo "{$meta['title']}
{$meta['description']}
";
for($i = 0; $i < count($feed); $i++){
echo "{$feed[$i]['title']}
";
}
echo '';
print_r($feed);
print_r($meta);
echo '
';
?>
*/
class RSSReader {
// Parsing
var $default_encoding = 'utf-8';
var $rss_content = '';
var $use_tags = 0;
var $limit = 0;
var $content = array();
var $channel_tags = array('title', 'link', 'description', 'language','pubDate', 'lastBuildDate',
'docs', 'generator','managinEditor','webMaster','copyright','ttl' );
var $item_tags = array('title','link','description','author','category', 'comments','guid',
'pubDate','source' );
// Cache
var $use_cache = 1;
var $cache_time = 1200;
var $cache_dir = './cache/';
var $cache_ext = 'cache';
/**
* @access public
* @param $url
* @return feed in array
*/
function getRSS($url){
if(($this->use_cache == 1) && (is_dir($this->cache_dir))){
$cachefile = $this->cache_dir . md5($url) . '.' . $this->cache_ext;
$cachefile_created = file_exists($cachefile) ? filemtime($cachefile) : 0;
clearstatcache();
if (time() - $this->cache_time < $cachefile_created) {
$this->getRSSFile($cachefile);
}else{
if ($f = fopen($cachefile, 'w')) {
fwrite ($f, $this->getRSSFile($url));
fclose($f);
}
}
}else{
$this->getRSSFile($url);
}
return $this->parseFile();
}
/**
* @access public
* @param none
* @return channel tags in array
*/
function getChannel(){
$retval = array();
preg_match("'(.*?)'si", $this->rss_content, $channels);
foreach($this->channel_tags as $tag){
preg_match("'<$tag>(.*?)'si", $channels[1], $node[$v]);
$retval[$tag] = $node[$v][1];
}
return $retval;
}
/**
* @access private
* @param none
* @return parsed rss-file
*/
function parseFile(){
// Strip CDATA
$this->rss_content = strtr($this->rss_content, array(''', ']]>'=>''));
if(function_exists('iconv')){
// Detect encoding or fall back to default
preg_match("'encoding=[\'\"](.*?)[\'\"]'si", $this->rss_content, $encoding);
if($encoding[1] != ''){
$this->rss_content = iconv($encoding[1], 'utf-8//TRANSLIT', $this->rss_content);
}else{
$this->rss_content = iconv($this->default_encoding, 'utf-8//TRANSLIT', $this->rss_content);
}
}
// Grab all items to array
preg_match_all("'(.*?)'si", $this->rss_content, $items);
if((count($items[0]) < $this->limit) || ($this->limit == 0)){
$this->limit = count($items[0]);
}
for($i = 0; $i < $this->limit; $i++){
foreach($this->item_tags as $tag){
preg_match("'<$tag.*?>(.*?)'si", $items[0][$i], $node[$i]);
$this->content[$i][$tag] .= $this->transformEntities($node[$i][1]);
}
}
return $this->content;
}
/**
* @access private
* @param $s String
* @return html translated string
*/
function transformEntities($s){
$a = array_flip(get_html_translation_table (HTML_ENTITIES, ENT_QUOTES));
if($this->use_tags == 1){
$rv = strtr($s, $a);
}else{
$rv = strip_tags(strtr($s, $a));
}
return $rv;
}
/**
* @access private
* @param $rss_file
* @return rss-file
*/
function getRSSFile($rss_file){
if ($f = @fopen($rss_file, 'r')) {
while (!feof($f)) {
$this->rss_content .= fgets($f, 4096);
}
fclose($f);
}
return $this->rss_content;
}
// Public setter methods
function setLimit($i = 0){
$this->limit = $i;
}
function setUseTags($i = 0){
$this->use_tags = $i;
}
function setCacheExt($str = 'cache'){
$this->cache_ext = $str;
}
function setCacheDir($str = './cache/'){
$this->cache_dir = $str;
}
function setUseCache($i = 1){
$this->use_cache = $i;
}
function setCacheTime($i = 1200){
$this->cache_time = $i;
}
}
?>