caching string data with Cache_Lite

Source code

1  <?php include('./.config.php');
2 
3 require('Cache/Lite.php');
4 $id = 'yahoo.oddlyenough';
5 
6 $options = array(
7     'cacheDir' => './cache/',
8     'lifeTime' => 3600    // 1 hour
9 );
10 
11 $cache = new Cache_Lite($options);
12 
13 // for demo purposes, purge the cache if we are accessed 
14 // with ?remove
15 if (strcasecmp($_SERVER['QUERY_STRING'],'remove')==0) {
16     $cache->remove($id)    ;
17     exit("cache purged");
18 }
19 if ($data = $cache->get($id)) {
20     echo "using cached data...<br />";
21     echo $data;
22 } else {
23     echo "no cache, fetching from network...<br />";
24     include('./.fetch_xml_with_socket.php5');
25     $data = fetchRss("rss.news.yahoo.com","/rss/oddlyenough");
26     echo '<pre>', htmlspecialchars($data), '</pre>';    
27     if (!$cache->save($data)) {
28         die( "damn! could not write to cache" );    }
29 }
30 include('./.footer.php')?>

Output

Warning: require(Cache/Lite.php) [function.require]: failed to open stream: No such file or directory in /home/davidmintz/www/davidmintz.org/php_course/examples/10/file_cache_lite.php5 on line 3

Fatal error: require() [function.require]: Failed opening required 'Cache/Lite.php' (include_path='/usr/home/dmintz/inc/pear:.:/usr/local/lib/php:/usr/local/php5/lib/pear') in /home/davidmintz/www/davidmintz.org/php_course/examples/10/file_cache_lite.php5 on line 3