tags generated by the plugin v0.2 (01-11-2005) - fixed a problem with caching v0.1 (01-11-2005) - initial release */ /* usage: just call the weekly_artists function somewhere in your template, and style the output using CSS. Don't forget to enable the plugin on the wordpress admin page. example: You do not need to change anything below. No, not even $user haha. */ function weekly_artists( $user, # your last.fm username $display_metalinks = false, # display feed and site info $cache_time=10, # how long to cache the results for (default=10 minutes) $cache_file = "" # cache file (defaults to # /tmp/last.fm.$user.$cache_time.cache) ) { global $_fpwrite; global $_last_user; global $_curl_error_code; global $insideitem; global $tag; global $artist; global $playcount; global $link; global $items; $insideitem = FALSE; $tag = ""; $artist = ""; $playcount = ""; $link = ""; $items = 0; $_last_user = $user; $api_url = "http://ws.audioscrobbler.com/1.0/user/$_last_user/weeklyartistchart.xml"; if ($cache_file == "") { $cache_file = "/tmp/last.fm.$_last_user.$cache_time.cache"; //$cache_file = "/tmp/last.fm.$cache_time.cache"; } $cache_file_tmp = "$cache_file.tmp"; $time = split(" ", microtime()); srand((double)microtime()*1000000); # randomise a bit, between 30 and 60s "off the mark" to avoid a bunch of # requests all simultaneously deciding to refresh the file $cache_time_rnd = 30 - rand(0, 60); if ( !file_exists($cache_file) || !filesize($cache_file) > 20 || ((filemtime($cache_file) + $cache_time - $time[1]) + $cache_time_rnd < 0) || (filemtime(__FILE__) > filemtime($cache_file)) ) { $c = curl_init($api_url); curl_setopt($c, CURLOPT_RETURNTRANSFER,1); //curl_setopt($c, CURLOPT_USERPWD,"$user:$pass"); curl_setopt($c, CURLOPT_CONNECTTIMEOUT, 2); curl_setopt($c, CURLOPT_TIMEOUT, 4); curl_setopt($c, CURLOPT_USERAGENT, "Last.fm WordPress Plugin v0.4 (http://blog.tijs.org/)"); $response = curl_exec($c); $info = curl_getinfo($c); // check if the response contains artists $findme = ''; $pos = strpos($response, $findme); if ($pos !== false) { //echo "write new cache file"; $_curl_error_code = $info['http_code']; curl_close($c); if ($_curl_error_code == 200) // STATUS OK { $_fpwrite = fopen($cache_file_tmp, 'w'); if ($_fpwrite) { # parse the XML, then write out includable html to the cache file. if (!($xml_parser = xml_parser_create())) die("Couldn't create parser."); xml_set_element_handler($xml_parser, "startElement", "endElement"); fputs($_fpwrite, "\n"); xml_parser_free($xml_parser); fclose($_fpwrite); # be atomic rename($cache_file_tmp, $cache_file); } } } } if ((file_exists($cache_file)) && filesize($cache_file) > 20) { include($cache_file); } elseif ($_curl_error_code) { echo "
  • No recent artists (error $_curl_error_code)
    • "; } else { echo "
  • No recent artists
    • "; } } function startElement($parser, $name, $attrs) { global $insideitem, $tag, $artist, $playcount, $link, $_fpwrite; if ($insideitem) { $tag = $name; } elseif ($name == "ARTIST") { $insideitem = true; $items++; } } function endElement($parser, $name) { global $insideitem, $tag, $artist, $playcount, $link, $_fpwrite; if ($name == "ARTIST") { fputs($_fpwrite, "
  • ".htmlspecialchars(trim($artist))." (".htmlspecialchars(trim($playcount)).")
    • "); $artist = ""; $playcount = ""; $link = ""; $insideitem = false; } } function characterData($parser, $data) { global $insideitem, $tag, $artist, $playcount, $link; if ($insideitem) { switch ($tag) { case "NAME": $artist .= $data; break; case "PLAYCOUNT": $playcount .= $data; break; case "URL": $link .= $data; break; } } } ?>