Something

$lastfmUsername = $userinfo['field8'];
$numberOfSongs = 10; // 10 is max

if (strlen($lastfmUsername) > 2) {

$ch = curl_init();
$timeout = 5; // set to zero for no timeout
curl_setopt ($ch, CURLOPT_URL, "http://ws.audioscrobbler.com/1.0/user/$lastfmUsername/recenttracks.txt");
curl_setopt ($ch, CURLOPT_RETURNTRANSFER, 1);
curl_setopt ($ch, CURLOPT_CONNECTTIMEOUT, $timeout);
$recentlyPlayedSongs = curl_exec($ch);
curl_close($ch);

$track = explode("\n", $recentlyPlayedSongs);
for ($i = 0; $i < $numberOfSongs; $i++) {
$trackArray = explode(",", $track[$i]);
$tracks .= $trackArray[1]."<br />";
}
}