My Lif3

Ok, I got bored and decided so I wrote a bunch of PHP in the past month. First one I worked on was a bar code system for my EMS(Employee Management System). For last.FM I have been using the audioscrobbler API and feed parsing which are all simple php concepts that everyone that does php should know how to do. So I know what your saying wheres the code. Well your going to have to read more

[sourcecode=php]
/*
****************************************************************
* This class interfaces the WS AudioScrobber API
* This used to get the following
*
* -get user profile
* -50 most played artists from a profile
* -50 most played albums from a profile
* -50 most played tracks from a profile
* -most used tags by a profile
* -User friends
* -People with simlar taste to profile
* -Recent Played tracks for a profile
* -Most recent weekly artist chart
* -Most recent weekly album chart
* -most recent weekly track chart
* -caching support
* -Opensource flash charts supported
*
****************************************************************
*/
class scrobbler{
var $username;
var $cache_dir = ‘/tmp/’;
var $cache_lifetime = 120;
var $_items_level = 3;
var $_items;
var $_item;
var $_parent_tags = array();
var $_cdata = array();
// Script Settings
function scrobbler($username){
$this->setUsername($username);
}
function setUsername($username)
{
$this->username = $username;
}

/**
* Cache lifetime (in seconds)
*
* @param int $seconds
*/
function setCacheLifetime($seconds)
{
$this->cache_lifetime = $seconds;
}

/**
* Cache directory
*
* @param string $dir
*/
function setCacheDir($dir)
{
$this->cache_dir = $dir;
}

/**
* Get user profile
*
* @return array
*/
function getProfile()
{
$this->setItemsLevel(2);
$items = $this->parseFeed(’profile’, ‘user’);
return current($items);
}

/**
* Get 50 most played artists from a music profile
*
* @param int $max_entries limit results
* @return array
*/
function getTopArtists($max_entries = null)
{
return $this->getGenericLevel3(’topartists’, ‘user’, $max_entries);
}

/**
* Get 50 most played albums from a music profile
*
* @param int $max_entries limit results
* @return array
*/
function getTopAlbums($max_entries = null)
{
return $this->getGenericLevel3(’topalbums’, ‘user’, $max_entries);
}

/**
* Get 50 most played tracks from a music profile
*
* @param int $max_entries limit results
* @return array
*/
function getTopTracks($max_entries = null)
{
return $this->getGenericLevel3(’toptracks’, ‘user’, $max_entries);
}

/**
* Get most used tags by a music profile
*
* @param int $max_entries limit results
* @return array
*/
function getTopTags($max_entries = null)
{
return $this->getGenericLevel3(’tags’, ‘user’, $max_entries);
}

/**
* Get friends added to profile
*
* @param int $max_entries limit results
* @return array
*/
function getFriends($max_entries = null)
{
return $this->getGenericLevel3(’friends’, ‘user’, $max_entries);
}

/**
* Get people with similar taste to profile
*
* @param int $max_entries limit results
* @return array
*/
function getNeighbours($max_entries = null)
{
return $this->getGenericLevel3(’neighbours’, ‘user’, $max_entries);
}

/**
* Get 10 recently played tracks for profile
*
* @param int $max_entries limit results
* @return array
*/
function getRecentTracs($max_entries = null)
{
return $this->getGenericLevel3(’recenttracks’, ‘user’, $max_entries);
}

/**
* Get most recent weekly artist chart
*
* @param int $max_entries limit results
* @return array
*/
function getWeeklyArtistChart($max_entries = null)
{
return $this->getGenericLevel3(’weeklyartistchart’, ‘user’, $max_entries);
}

/**
* Most recent weekly album chart
*
* @param int $max_entries limit results
* @return array
*/
function getWeeklyAlbumChart($max_entries = null)
{
return $this->getGenericLevel3(’weeklyalbumchart’, ‘user’, $max_entries);
}

/**
* Most recent weekly track chart
*
* @param int $max_entries limit results
* @return array
*/
function getWeeklyTrackChart($max_entries = null)
{
return $this->getGenericLevel3(’weeklytrackchart’, ‘user’, $max_entries);
}

// — PRIVATE METHODS BELOW ———————————–

/**
* @access private
*/
function getGenericLevel3($action, $type, $max_entries = null)
{
$this->setItemsLevel(3);

$items = $this->parseFeed($action, $type);

if (!is_null($max_entries))
$items = array_slice($items, 0, $max_entries);

return $items;

}

/**
* @access private
*/
function setItemsLevel($level)
{
$this->_items_level = $level;
}

/**
* @access private
*/
function getItemsLevel()
{
return $this->_items_level;
}

/**
* @access private
*/
function getFileContents($action, $type)
{
$file = $this->getCacheFileName($action, $type);

if (!file_exists($file) || filemtime($file) < time() - $this->cache_lifetime)
{
$xml = file_get_contents($this->getUrl($action, $type));

$fp = fopen($file, “w+”);
fwrite($fp, $xml);
fclose($fp);
}

return file_get_contents($file);
}

/**
* @access private
*/
function getCacheFileName($action, $type)
{
return $this->cache_dir . ‘audioscrobbler-’ . $type . ‘-’ . $this->username . ‘-’ . $action . ‘.xml’;
}

/**
* @access private
*/
function getUrl($action, $type)
{
return “http://ws.audioscrobbler.com/1.0/{$type}/{$this->username}/{$action}.xml”;
}

/**
* @access private
*/
function parseFeed($action, $type)
{
return $this->parse($this->getFileContents($action, $type));
}

/**
* @access private
*/
function parse($xml)
{
$this->_items = array();

$parser = xml_parser_create(’UTF-8′);

xml_set_object($parser, $this);
xml_set_element_handler($parser, “startElement”, “endElement”);
xml_set_character_data_handler($parser, “characterData”);

if (!xml_parse($parser, $xml))
trigger_error(sprintf(”XML error: %s at line %d”, xml_error_string(xml_get_error_code($parser)), xml_get_current_line_number($parser)), E_USER_ERROR);

xml_parser_free($parser);

return $this->_items;
}

/**
* @access private
*/
function startElement($parser, $name, $attrs)
{
$name = strtoupper($name);

array_push($this->_parent_tags, $name);

switch ($this->getParentLevel())
{
case $this->getItemsLevel() - 1:
$this->_item = array();
break;

case $this->getItemsLevel():
case $this->getItemsLevel() + 1:
$this->_cdata[$this->getParentLevel()] = ”;

foreach ($attrs as $key=>$val)
$this->_item[$name . '_' . $key] = $val;
break;
}
}

/**
* @access private
*/
function endElement($parser, $name)
{
$name = strtoupper($name);

switch ($this->getParentLevel())
{
case $this->getItemsLevel() - 1:
$this->_items[] = $this->_item;
$this->_item = array();
break;

case $this->getItemsLevel():
if (!is_array($this->_item[$name]))
$this->_item[$name] = trim($this->_cdata[$this->getParentLevel()]);
break;

case $this->getItemsLevel() + 1:
$this->_item[$this->_parent_tags[$this->getItemsLevel() - 1]][$name] = trim($this->_cdata[$this->getItemsLevel() + 1]);
break;
}

array_pop($this->_parent_tags);
}

/**
* @access private
*/
function characterData($parser, $data)
{
$this->_cdata[$this->getParentLevel()].= $data;
}

/**
* @access private
*/
function getParentLevel()
{
return count($this->_parent_tags);
}
/**
* @ Convert time to how long ago
*/
function getTimeLast($time){
$nTime = strtotime($time);
$time = time-$nTime;
$d_time = intval($time / (24*60*60));
$time -= $d_time*(24*60*60);
$h_time = intval($time / (60*60));
$time -= $h_time*(60*60);
$m_time = intval($time / 60);
$time -= $m_time * 60;
$s_time = $time;
$n = “Played: $d_time days, $h_time hours, $m_time minutes, $s_time seconds ago”;
return $n;
}
}
[/sourcecode]
I still need to work on the OSF charting to get that fully functioning.