last fm current song

lastfm.php

<?php
/**
 * Package:  Scrobbl.in Core (http://github.com/cxdy/Scrobbl.in)
 * Version:  2.0
 * Authors:  Cody Kaczynski (http://github.com/cxdy)
 * License: MIT License (http://opensource.org/licenses/MIT)
 * You can obtain a Last.FM API key at http://www.last.fm/api/account/create
 * Read the documentation (https://github.com/cxdy/Scrobbl.in/blob/master/README.md)
**/

$uname = "YOUR USERNAME"; /* Your Last.FM username */
$key = "YOUR API KEY"; /* Your Last.FM API Key */
$json = file_get_contents("http://ws.audioscrobbler.com/2.0/?method=user.getrecenttracks&user=" . $uname . "&api_key=" . $key . "&format=json"); /* This is an API call */

	/* Checks if you're scrobbling, and displays what you're currently scrobbling. */
	if (strpos($json, 'nowplaying') !== false) {
		list($currentsonginfo, $crap) = explode('{"nowplaying":"true"}}', $json);
		list($crap, $v2) = explode('{"recenttracks":{"track":[{"artist":{"#text":"', $currentsonginfo);
		list($artist, $restinfo) = explode('","', $v2);
		list($crap, $currenttrack) = explode('"name":"', $restinfo); 
	}

$playing = $artist . ' - ' . $currenttrack; /* Checks for a song. */

$artistx = htmlspecialchars($artist, ENT_NOQUOTES);
$trackx = htmlspecialchars($currenttrack, ENT_NOQUOTES);
$userx = htmlspecialchars($uname, ENT_NOQUOTES);

str_replace("&amp", "&", $artistx);
str_replace("&amp", "&", $trackx);

	if ($playing == ' - ') { /* This only displays if nothing is playing. */
		echo '<a title="Powered by Scrobbl.in by cxdy on GitHub" href="http://last.fm/user/' . $userx . '/">';
		echo "I'm not listening to anything.";
		echo "</a>";
	} else { /* Displays the artist and song, and links to them respectively. */
		echo '<a title="Powered by Scrobbl.in by cxdy on GitHub" href="http://last.fm/user/' . $userx . '/">';
		echo "I'm currently listening to</a> <a href='http://last.fm/artist/" . str_replace(array(" ", "'"), array("+", "%27"), $artistx) . "/_/"  . str_replace(array(" ", "'"), array("+", "%27"), $trackx) . "'>" . $trackx . "</a>"; // Linking your song
		echo " by <a href='http://last.fm/artist/" . str_replace(array(" ", "'"), array("+", "%27"), $artistx) . "'>" . $artistx . "</a>";
	}
?>