<?php

function tracklist_lastfm_search ($album) {

    $query = urlencode($album);

    // Huong: Get last.fm album search results, and create simplexml from it

    $lastfmhost = 'http://ws.audioscrobbler.com/2.0/';

    $apikey = '33b95aaa4235e255b823aead4871c151';

    $method = 'album.search';

    $url = $lastfmhost.'?method='.$method.'&album='.$query.'&api_key='.$apikey;

     $ch = curl_init($url);

    curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);

    curl_setopt($ch, CURLOPT_HEADER, 0);

    $data = curl_exec($ch);

  //  echo $data;

    curl_close($ch);

    $lastfm_results = new SimpleXmlElement($data, LIBXML_NOCDATA);

    $album_url = "";

    $tracklist_url = "";

    foreach ($lastfm_results->results->albummatches->album as $theresult) {

        // Huong: select the url for exactly match

       if (strcasecmp($theresult->name, $album) == 0)

            {

               // get info to search next

               $album_name = urlencode($theresult->name);

               $artist_name = urlencode($theresult->artist);

               $method = 'album.getInfo';

               $album_url = $lastfmhost.'?method='.$method.'&artist='.$artist_name.'&album='.$album_name.'&api_key='.$apikey;

               $tracklist_url = $theresult->url;

             //  echo $tracklist_url. "HAHAHHA <br>";

               break;  // take the first matched album

            }

    }

    // Huong: if found 1

    if (strcmp($tracklist_url,"") != 0){

        $yql_query = "select * from html where url=\"";

        $yql_query .= $tracklist_url;

        $yql_query .= "\" and xpath=\"/html/body/div[2]/div/div[4]/div[2]/div/table/tbody\"";

        $yql_query = rawurlencode($yql_query);

        $yql_query = "http://query.yahooapis.com/v1/public/yql?q=". $yql_query;

        $yql_query .= "&format=xml";

        // echo $yql_query.'<br>';

        $ch2 = curl_init($yql_query);

        curl_setopt($ch2, CURLOPT_RETURNTRANSFER, true);

        curl_setopt($ch2, CURLOPT_HEADER, 0);

        $data2 = curl_exec($ch2);

        curl_close($ch2);

        $tracklist_results = new SimpleXmlElement($data2, LIBXML_NOCDATA);

        //echo $tracklist_results->asXML();

        $tracklist = array();

        foreach ($tracklist_results->results->tbody->tr as $rows) {

            $pos = $rows->td[0]->p;

            if ($rows->td[2]->p->a != "")

                { $name = $rows->td[2]->p->a; }

            else

                { $name = $rows->td[2]->a; }

            if ($pos != "")

                $tracklist[(int)$pos]= $name;

         }

        // Huong: display result

        for ($i =1 ; $i <= sizeof($tracklist); $i++) {

                echo $i.": ".$tracklist[$i].'<br>';

          }

        }

}

?>