hycday/callback.php

## callback.php
<?php
//file should be named index.php, and placed in callback subdirectories
error_reporting(-1);
ini_set('display_errors', 1);

require '../vendor/autoload.php';

$session = new SpotifyWebAPI\Session('CLIENT_ID', 'CLIENT_SECRET', 'https://mysite.com/callback');
$api = new SpotifyWebAPI\SpotifyWebAPI();

if (isset($_GET['code'])) {
$session->requestAccessToken($_GET['code']);
session_start();
$_SESSION['token'] = $session->getAccessToken();
$_SESSION['expirein'] = time();

 header('Location: ../');
} else {
    $scopes = [
        'scope' => [
            'user-read-email',
            'user-library-modify',
            'user-read-recently-played'
        ],
    ];

    header('Location: ' . $session->getAuthorizeUrl($scopes));
}

## index.php
<?php
error_reporting(-1);
ini_set('display_errors', 1);

require 'vendor/autoload.php';

$session = new SpotifyWebAPI\Session('CLIENT_ID', 'CLIENT_SECRET', 'https://mysite.com/callback');
session_start();

$inactive = 3600;
$session_life = time() - $_SESSION['expirein'];

if (isset($_SESSION['token']) && ($session_life < $inactive)) {
    $api = new SpotifyWebAPI\SpotifyWebAPI();
    $accessToken = $_SESSION['token'];
    $api->setAccessToken($accessToken);

?>
<!DOCTYPE html>
<html>
<head>
    <meta charset="utf-8">
	<title>Spotify History Tracks</title>
</head>
<style type="text/css">
* {margin: 0; padding: 0;}
div {  margin: 20px;}
ul {  list-style-type: none;  width: 800px;}
h3 {  font: bold 16px/1.5 Helvetica, Verdana, sans-serif;}
h1 {  font: bold 20px/1.5 Helvetica, Verdana, sans-serif;}
a {color:#000000;}
li img {  float: left;  margin: 0 15px 0 0;}
li p {  font: 200 12px/1.5 Georgia, Times New Roman, serif;}
li {  padding: 10px;  overflow: auto;}
li:hover {  background: #eee;  }
</style>
<body>
<div>
<h1>Spotify History Tracks (Descending order)</h1>
  <ul>
   <?php
    $milliseconds = round(microtime(true) * 1000);
    $limitfetch = 15;
    $artist = $api->getMyHistory(array('limit' => $limitfetch, 'before' => $milliseconds));

    function formatSeconds( $input )
    {
        $uSec = $input % 1000;
        $input = floor($input / 1000);

        $seconds = $input % 60;
        $input = floor($input / 60);

        $minutes = $input % 60;
        $input = floor($input / 60);

        $hours = $input % 60;
        $input = floor($input / 60);

        $seconds = sprintf("%02d", $seconds);
        $minutes = sprintf("%02d", $minutes);
        $hours = sprintf("%02d", $hours);

        $fullduration = ($hours > 0) ? $hours.'h '.$minutes.'min '.$seconds.'s' : $minutes.'min '.$seconds.'s';

      return $fullduration;
    }

    for ($i=0; $i < $artist->limit ; $i++) {

        //link to spotify page
        $linkpage = $artist->items[$i]->track->external_urls->spotify;

        //to get the album image
        $track = $api->getTrack($artist->items[$i]->track->id);
        $getlastimageposition = count($track->album->images) - 1; //array is as follow [big, middle, small] so small = -1 / small = -2/ big = -3
        $albumcover = $track->album->images[$getlastimageposition]->url;

        //to get the featuring list, if more than one artist
        $arr_length = count($artist->items[$i]->track->artists);
        $artistsfeaturing = '';
        for($j=0;$j<$arr_length;$j++) {
        $artistsfeaturing .= '<a href="'. $artist->items[$i]->track->artists[$j]->external_urls->spotify
        .'" target="_blank">'. $artist->items[$i]->track->artists[$j]->name . '</a>, ';
        }
        $artistsfeaturing = substr($artistsfeaturing, 0, -2);

        //to get trackname + link
        $trackname = '<a href="'. $linkpage .'" target="_blank">'. $artist->items[$i]->track->name .'</a>';

        //to get duration of track
        $duration = formatSeconds($artist->items[$i]->track->duration_ms);

        //to get time in nice format (from  ISO8601 to Date format) + 7h of time difference
        $playeddate = date('d M Y - \a\t G:i:s', (strtotime($artist->items[$i]->played_at)+60*60*7));

        echo '<li>';
        echo '<a href="'.$linkpage.'" target="_blank">';
        echo '<img src="'.$albumcover.'" />';
        echo '</a>';
        echo '<h3>'.$artistsfeaturing.' - '. $trackname . '</h3>';
        echo '<p> Track was played on : '. $playeddate .'</p>';
        echo '<p> URI of track is : <a href="'.$artist->items[$i]->track->uri.'">'. $artist->items[$i]->track->uri .'</a></p>';
        echo '<p> Track duration : '. $duration .'</p>';
        echo '</li>';

    }

?>
  </ul>
</div>
</body>
</html>
<?php
} else {

    $scopes = array(
        'scope' => array(
            'user-read-email',
            'user-library-modify',
            'user-read-recently-played'
        ),
    );

    header('Location: ' . $session->getAuthorizeUrl($scopes));
} ?>
	<?php
	//file should be named index.php, and placed in callback subdirectories
	error_reporting(-1);
	ini_set('display_errors', 1);

	require '../vendor/autoload.php';

	$session = new SpotifyWebAPI\Session('CLIENT_ID', 'CLIENT_SECRET', 'https://mysite.com/callback');
	$api = new SpotifyWebAPI\SpotifyWebAPI();

	if (isset($_GET['code'])) {
	$session->requestAccessToken($_GET['code']);
	session_start();
	$_SESSION['token'] = $session->getAccessToken();
	$_SESSION['expirein'] = time();

	header('Location: ../');
	} else {
	$scopes = [
	'scope' => [
	'user-read-email',
	'user-library-modify',
	'user-read-recently-played'
	],
	];

	header('Location: ' . $session->getAuthorizeUrl($scopes));
	}