Spotify test

Spotify

<?php
// Se incluye la clase
include_once("spotify.class.php");
// Se rescatan los datos de una uri de spotify 
$data = spotify::get('spotify:artist:1yxSLGMDHlW21z4YXirZDS');
echo json_encode($data, JSON_UNESCAPED_SLASHES);
//var_dump($data);
?>

<?php
class spotify 
{
  static $baseurl = "http://ws.spotify.com/lookup/1/?";
 
  static public function get( $spotifyUri )
  {  // Api en: http://developer.spotify.com/en/metadata-api/lookup/
    $data = 'uri='.$spotifyUri;
    switch(substr($spotifyUri,8,5))
    {
      case 'album':
        $data .= '&extras=trackdetail';
        $method = 'album';
        break;
      case 'artis':
        $data .= '&extras=albumdetail';
        $method = 'artist';
        break; 
      case 'track':
		  // nothing extra :(        
        $method = 'track';
        break; 
      default:
        $method = false;
    }
    $xml = @simplexml_load_file(self::$baseurl . $data);
 
    if ($xml && $method)
    {    
      return self::$method($xml,$spotifyUri);
    }
    else
    {
      return false;
    }
  }
 
  /**
   * spotify_uri2open
   *
   * Función para transformar uris con protocolo spotify en urls http de open spotify.
   */
  public function uri2open($uri)
  {
    return ($uri) ? "http://open.spotify.com/" . str_replace(":","/",substr($uri,8)) : false;
  }
 
  protected function album($xml,$spotifyUri)
  {
    $element = array(
      'type'       => 'album',
      'url'        => self::uri2open($spotifyUri),
      'name'       => (string) $xml->name,
      'year'       => (string) $xml->released,
      'artist'     => (string) $xml->artist->name,
      'artist_url' => self::uri2open($xml->artist['href']),
    );
    foreach ($xml->tracks->track as $t)
    {
      $element['item'][] = array(
        "type"       => 'track',
        "url"        => self::uri2open($t['href']),
        "name"       => (string) $t->name,
        'artist'     => (string) $t->artist->name,
        'artist_url' => self::uri2open($t->artist['href']),
        'length'     => (string) $t->length,
        'popularity' => (int) $t->popularity
      );
    }
    return $element;
  }
  protected function artist($xml,$spotifyUri)
  {
    $element = array(
      'type'       => 'artist',
      'url'        => self::uri2open($spotifyUri),
      'name'       => (string) $xml->name,
    );
    foreach ($xml->albums->album as $a)
    {
	$element['item'][] = array(
        'type'       => 'album',
        'url'        => self::uri2open($a['href']),
        'name'       => (string) $a->name,
        'year'       => (string) $a->released,
        'artist'     => (string) $a->artist->name,
        'artist_url' => self::uri2open($a->artist['href']),
      );    
    }
    return $element;
  }
  protected function track($xml,$spotifyUri)
  {
    $element = array(
        "type"       => 'track',
        "url"        => self::uri2open($spotifyUri),
        "name"       => (string) $xml->name,
        'artist'     => (string) $xml->artist->name,
        'artist_url' => self::uri2open($xml->artist['href']),
        'length'     => (string) $xml->length,
        'popularity' => (int) $xml->popularity
     );
     return $element;
  }
}
?>