C:/xampp/htdocs/moodle/lib/zend/Zend/Service/Audioscrobbler.php

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<?php

require_once 'Zend/Http/Client.php';


class Zend_Service_Audioscrobbler
{
    protected $_client;

    protected $_params;

    protected $_error = null;


    public function __construct()
    {
        $this->set('version', '1.0');

        iconv_set_encoding('output_encoding', 'UTF-8');
        iconv_set_encoding('input_encoding', 'UTF-8');
        iconv_set_encoding('internal_encoding', 'UTF-8');
    }

    public function setHttpClient(Zend_Http_Client $client)
    {
        $this->_client = $client;
    }

    public function getHttpClient()
    {
        if($this->_client == null) {
            $this->lazyLoadHttpClient();
        }
        return $this->_client;
    }

    protected function lazyLoadHttpClient()
    {
        $this->_client = new Zend_Http_Client();
    }

    public function get($field)
    {
        if (array_key_exists($field, $this->_params)) {
            return $this->_params[$field];
        } else {
            return false;
        }
    }

    public function set($field, $value)
    {
        $this->_params[$field] = urlencode($value);

        return $this;
    }

    protected function _getInfo($service, $params = null)
    {
        $service = (string) $service;
        $params  = (string) $params;

        if ($params === '') {
            $this->getHttpClient()->setUri("http://ws.audioscrobbler.com{$service}");
        } else {
            $this->getHttpClient()->setUri("http://ws.audioscrobbler.com{$service}?{$params}");
        }

        $response     = $this->getHttpClient()->request();
        $responseBody = $response->getBody();

        if (preg_match('/No such path/', $responseBody)) {
            require_once 'Zend/Http/Client/Exception.php';
            throw new Zend_Http_Client_Exception('Could not find: ' . $this->_client->getUri());
        } elseif (preg_match('/No user exists with this name/', $responseBody)) {
            require_once 'Zend/Http/Client/Exception.php';
            throw new Zend_Http_Client_Exception('No user exists with this name');
        } elseif (!$response->isSuccessful()) {
            require_once 'Zend/Http/Client/Exception.php';
            throw new Zend_Http_Client_Exception('The web service ' . $this->_client->getUri() . ' returned the following status code: ' . $response->getStatus());
        }

        set_error_handler(array($this, '_errorHandler'));

        if (!$simpleXmlElementResponse = simplexml_load_string($responseBody)) {
            restore_error_handler();
            require_once 'Zend/Service/Exception.php';
            $exception = new Zend_Service_Exception('Response failed to load with SimpleXML');
            $exception->error    = $this->_error;
            $exception->response = $responseBody;
            throw $exception;
        }

        restore_error_handler();

        return $simpleXmlElementResponse;
    }

    public function userGetProfileInformation()
    {
        $service = "/{$this->get('version')}/user/{$this->get('user')}/profile.xml";
        return $this->_getInfo($service);
    }

    public function userGetTopArtists()
    {
        $service = "/{$this->get('version')}/user/{$this->get('user')}/topartists.xml";
        return $this->_getInfo($service);
    }

    public function userGetTopAlbums()
    {
        $service = "/{$this->get('version')}/user/{$this->get('user')}/topalbums.xml";
        return $this->_getInfo($service);
    }

    public function userGetTopTracks()
    {
        $service = "/{$this->get('version')}/user/{$this->get('user')}/toptracks.xml";
        return $this->_getInfo($service);
    }

    public function userGetTopTags()
    {
        $service = "/{$this->get('version')}/user/{$this->get('user')}/tags.xml";
        return $this->_getInfo($service);
    }

    public function userGetTopTagsForArtist()
    {
        $service = "/{$this->get('version')}/user/{$this->get('user')}/artisttags.xml";
        $params = "artist={$this->get('artist')}";
        return $this->_getInfo($service, $params);
    }

    public function userGetTopTagsForAlbum()
    {
        $service = "/{$this->get('version')}/user/{$this->get('user')}/albumtags.xml";
        $params = "artist={$this->get('artist')}&album={$this->get('album')}";
        return $this->_getInfo($service, $params);
    }

    public function userGetTopTagsForTrack()
    {
        $service = "/{$this->get('version')}/user/{$this->get('user')}/tracktags.xml";
        $params = "artist={$this->get('artist')}&track={$this->get('track')}";
        return $this->_getInfo($service, $params);
    }

    public function userGetFriends()
    {
        $service = "/{$this->get('version')}/user/{$this->get('user')}/friends.xml";
        return $this->_getInfo($service);
    }

    public function userGetNeighbours()
    {
        $service = "/{$this->get('version')}/user/{$this->get('user')}/neighbours.xml";
        return $this->_getInfo($service);
    }

    public function userGetRecentTracks()
    {
        $service = "/{$this->get('version')}/user/{$this->get('user')}/recenttracks.xml";
        return $this->_getInfo($service);
    }

    public function userGetRecentBannedTracks()
    {
        $service = "/{$this->get('version')}/user/{$this->get('user')}/recentbannedtracks.xml";
        return $this->_getInfo($service);
    }

    public function userGetRecentLovedTracks()
    {
        $service = "/{$this->get('version')}/user/{$this->get('user')}/recentlovedtracks.xml";
        return $this->_getInfo($service);
    }

    public function userGetWeeklyChartList()
    {
        $service = "/{$this->get('version')}/user/{$this->get('user')}/weeklychartlist.xml";
        return $this->_getInfo($service);
    }


    public function userGetWeeklyAlbumChart($from = NULL, $to = NULL)
    {
        $params = "";

        if ($from != NULL && $to != NULL) {
            $from = (int)$from;
            $to = (int)$to;
            $params = "from={$from}&to={$to}";
        }

        $service = "/{$this->get('version')}/user/{$this->get('user')}/weeklyalbumchart.xml";
        return $this->_getInfo($service, $params);
    }

    public function userGetWeeklyArtistChart($from = NULL, $to = NULL)
    {
        $params = "";

        if ($from != NULL && $to != NULL) {
            $from = (int)$from;
            $to = (int)$to;
            $params = "from={$from}&to={$to}";
        }

        $service = "/{$this->get('version')}/user/{$this->get('user')}/weeklyartistchart.xml";
        return $this->_getInfo($service, $params);
    }

    public function userGetWeeklyTrackChart($from = NULL, $to = NULL)
    {
        $params = "";

        if ($from != NULL && $to != NULL) {
            $from = (int)$from;
            $to = (int)$to;
            $params = "from={$from}&to={$to}";
        }

        $service = "/{$this->get('version')}/user/{$this->get('user')}/weeklytrackchart.xml";
        return $this->_getInfo($service, $params);
    }


    public function artistGetRelatedArtists()
    {
        $service = "/{$this->get('version')}/artist/{$this->get('artist')}/similar.xml";
        return $this->_getInfo($service);
    }

    public function artistGetTopFans()
    {
        $service = "/{$this->get('version')}/artist/{$this->get('artist')}/fans.xml";
        return $this->_getInfo($service);
    }

    public function artistGetTopTracks()
    {
        $service = "/{$this->get('version')}/artist/{$this->get('artist')}/toptracks.xml";
        return $this->_getInfo($service);
    }

    public function artistGetTopAlbums()
    {
        $service = "/{$this->get('version')}/artist/{$this->get('artist')}/topalbums.xml";
        return $this->_getInfo($service);
    }

    public function artistGetTopTags()
    {
        $service = "/{$this->get('version')}/artist/{$this->get('artist')}/toptags.xml";
        return $this->_getInfo($service);
    }


    public function albumGetInfo()
    {
        $service = "/{$this->get('version')}/album/{$this->get('artist')}/{$this->get('album')}/info.xml";
        return $this->_getInfo($service);
    }

    public function trackGetTopFans()
    {
        $service = "/{$this->get('version')}/track/{$this->get('artist')}/{$this->get('track')}/fans.xml";
        return $this->_getInfo($service);
    }

    public function trackGetTopTags()
    {
        $service = "/{$this->get('version')}/track/{$this->get('artist')}/{$this->get('track')}/toptags.xml";
        return $this->_getInfo($service);
    }

    public function tagGetTopTags()
    {
        $service = "/{$this->get('version')}/tag/toptags.xml";
        return $this->_getInfo($service);
    }

    public function tagGetTopAlbums()
    {
        $service = "/{$this->get('version')}/tag/{$this->get('tag')}/topalbums.xml";
        return $this->_getInfo($service);
    }

    public function tagGetTopArtists()
    {
        $service = "/{$this->get('version')}/tag/{$this->get('tag')}/topartists.xml";
        return $this->_getInfo($service);
    }

    public function tagGetTopTracks()
    {
        $service = "/{$this->get('version')}/tag/{$this->get('tag')}/toptracks.xml";
        return $this->_getInfo($service);
    }

    public function groupGetWeeklyChartList()
    {
        $service = "/{$this->get('version')}/group/{$this->get('group')}/weeklychartlist.xml";
        return $this->_getInfo($service);
    }

    public function groupGetWeeklyArtistChartList($from = NULL, $to = NULL)
    {

        if ($from != NULL && $to != NULL) {
            $from = (int)$from;
            $to = (int)$to;
            $params = "from={$from}&$to={$to}";
        } else {
            $params = "";
        }

        $service = "/{$this->get('version')}/group/{$this->get('group')}/weeklyartistchart.xml";
        return $this->_getInfo($service, $params);
    }

    public function groupGetWeeklyTrackChartList($from = NULL, $to = NULL)
    {
        if ($from != NULL && $to != NULL) {
            $from = (int)$from;
            $to = (int)$to;
            $params = "from={$from}&to={$to}";
        } else {
            $params = "";
        }

        $service = "/{$this->get('version')}/group/{$this->get('group')}/weeklytrackchart.xml";
        return $this->_getInfo($service, $params);
    }

    public function groupGetWeeklyAlbumChartList($from = NULL, $to = NULL)
    {
        if ($from != NULL && $to != NULL) {
            $from = (int)$from;
            $to = (int)$to;
            $params = "from={$from}&to={$to}";
        } else {
            $params = "";
        }

        $service = "/{$this->get('version')}/group/{$this->get('group')}/weeklyalbumchart.xml";
        return $this->_getInfo($service, $params);
    }

    protected function _errorHandler($errno, $errstr, $errfile, $errline, array $errcontext)
    {
        $this->_error = array(
            'errno'      => $errno,
            'errstr'     => $errstr,
            'errfile'    => $errfile,
            'errline'    => $errline,
            'errcontext' => $errcontext
            );
    }

    public function __call($method, $args)
    {
        if(substr($method, 0, 3) !== "set") {
            require_once "Zend/Service/Exception.php";
            throw new Zend_Service_Exception(
                "Method ".$method." does not exist in class Zend_Service_Audioscrobbler."
            );
        }
        $field = strtolower(substr($method, 3));

        if(!is_array($args) || count($args) != 1) {
            require_once "Zend/Service/Exception.php";
            throw new Zend_Service_Exception(
                "A value is required for setting a parameter field."
            );
        }
        $this->set($field, $args[0]);

        return $this;
    }
}