copy id from soundcloud url

<?php
$url = "https://w.soundcloud.com/player/?url=https%3A//api.soundcloud.com/tracks/02&amp;amp;color=ff5500&amp;amp;auto_play=false&amp;amp;hide_related=false&amp;amp;show_comments=true&amp;amp;show_user=true&amp;amp;show_reposts=false";

parse_str( parse_url( $url, PHP_URL_QUERY ), $my_array_of_vars );
$url = $my_array_of_vars['url'];

$id = substr($url, strrpos($url, '/') + 1);

?>