How to get the MP3 metadata (StreamTitle) from a streaming URL

getMp3StreamTitle.php

<?php

/**
 * Please be aware. This gist requires at least PHP 5.4 to run correctly.
 * Otherwise consider downgrading the $opts array code to the classic "array" syntax.
 */
function getMp3StreamTitle($streamingUrl, $interval, $offset = 0, $headers = true)
{
	$needle = 'StreamTitle=';
	$ua = 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/27.0.1453.110 Safari/537.36';

	$opts = [
			'http' => [
			'method' => 'GET',
			'header' => 'Icy-MetaData: 1',
			'user_agent' => $ua
		]
	];

	if (($headers = get_headers($streamingUrl))) {
		foreach ($headers as $h) {
			if (strpos(strtolower($h), 'icy-metaint') !== false && ($interval = explode(':', $h)[1])) {
				break;
			}
		}
	}

	$context = stream_context_create($opts);

	if ($stream = fopen($streamingUrl, 'r', false, $context)) {
		$buffer = stream_get_contents($stream, $interval, $offset);
		fclose($stream);

		if (strpos($buffer, $needle) !== false) {
			$title = explode($needle, $buffer)[1];
			return substr($title, 1, strpos($title, ';') - 2);
		} else {
			return getMp3StreamTitle($streamingUrl, $interval, $offset + $interval, false);
		}
	} else {
		throw new Exception("Unable to open stream [{$streamingUrl}]");
	}
}

var_dump(getMp3StreamTitle('http://str30.creacast.com/r101_thema6', 19200));

echo "\n\n";

Hello, I’ve been using this snippet in my foreign music internet radio for few months now and its working great… !
I’m not a php programmer, a developer did this work a while ago. I have basic programming skills.
Right now, I ‘m trying to build a new internet radio that will play Greek music.
All the tracks that play there have Greek characters for Artist and Title in their tags.
AIMP player plays the stream and picks up the Artist / Title metadata (directly from the mp3 stream), and displays them correctly in Greek no problem as Artist and Title.
The Greek radio stream is : https://streamyourdream.org:8138/stream and the foreign music radio is https://streamyourdream.org:8050/radioactive

Using this php snippet (from fracasula) (which is a part of my API), see here https://radioactivefm.gr/live/api/getSongJson.php, I modified the calling code for the new Greek radio and created this https://radioactivefm.gr/live/api/getGreekSongJson.php but it never returns anything!

When I changed the MP3 tags to English characters in one track and called the getGreekSongJson.php then it did work fine, so the function isnt't working with the Greek character set.

Here's the phps that I use:
grk_functions.php

`<?php

$xml = simplexml_load_file("grk_config.xml");
$StreamingUrl = '';
$BackupUrl = '';
$ThirdUrl =  '';
$NoPlayerMessage = '';
$MessageSent = '';
$ReplyPageReturn = '';
$SongLiked = '';
$SongAlreadyLiked = '';
$MiniUrl = '';
$MiniMessage = '';
$SlideShowVisible = 'false';
$LikeFacebookMessage = '';
if (is_object($xml))
{
foreach($xml->children() as $child) {
	if ($child->getName() == 'Url') $StreamingUrl =  $child;
	if ($child->getName() == 'BackupUrl') $BackupUrl =  $child;
	if ($child->getName() == 'ThirdUrl') $ThirdUrl =  $child;
	if ($child->getName() == "NoPlayer") $NoPlayerMessage =  $child;
	if ($child->getName() == 'MessageSent') $MessageSent =  $child;
	if ($child->getName() == 'ReplyPageReturn') $ReplyPageReturn =  $child;
	if ($child->getName() == 'SongLiked') $SongLiked =  $child;
	if ($child->getName() == 'SongAlreadyLiked') $SongAlreadyLiked =  $child;
	if ($child->getName() == 'MiniUrl') $MiniUrl =  $child;
	if ($child->getName() == 'MiniMessage') $MiniMessage =  $child;
	if ($child->getName() == 'SlideShowVisible') $SlideShowVisible =  $child;
	if ($child->getName() == 'LikeFacebookMessage') $LikeFacebookMessage =  $child;
}
}


function getMp3StreamTitle($streamingUrl, $interval, $offset = 0, $headers = true)
{
	$needle = 'StreamTitle=';
	$ua = 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/27.0.1453.110 Safari/537.36';

	$opts = [
			'http' => [
			'method' => 'GET',
			'header' => 'Icy-MetaData: 1',
			'user_agent' => $ua
		]
	];

	if (($headers = get_headers($streamingUrl))) {
		foreach ($headers as $h) {
			if (strpos(strtolower($h), 'icy-metaint') !== false && ($interval = explode(':', $h)[1])) {
				break;
			}
		}
	}

	$context = stream_context_create($opts);

	if ($stream = fopen($streamingUrl, 'r', false, $context)) {
		$buffer = stream_get_contents($stream, $interval, $offset);
		fclose($stream);

		if (strpos($buffer, $needle) !== false) {
			$title = explode($needle, $buffer)[1];
			return substr($title, 1, strpos($title, ';') - 2);
		} else {
			return getMp3StreamTitle($streamingUrl, $interval, $offset + $interval, false);
		}
	} else {
		throw new Exception("Unable to open stream [{$streamingUrl}]");
	}
}

`

grk_api_func.php
`<?php
chdir('..');
include "grk_functions.php";
/**
*

• Array 2 XML class
• Convert an array or multi-dimentional array to XML
• @author Kevin Waterson
• @copyright 2009 PHPRO.ORG

*/
class array2xml extends DomDocument
{

public $nodeName;

private $xpath;

private $root;

private $node_name;


/**
* Constructor, duh
*
* Set up the DOM environment
*
* @param    string    $root        The name of the root node
* @param    string    $nod_name    The name numeric keys are called
*
*/
public function __construct($root='root', $node_name='node')
{
    parent::__construct();

    /*** set the encoding ***/
    $this->encoding = "utf-8";

    /*** format the output ***/
    $this->formatOutput = true;

    /*** set the node names ***/
    $this->node_name = $node_name;

    /*** create the root element ***/
    $this->root = $this->appendChild($this->createElement( $root ));

    $this->xpath = new DomXPath($this);
}

/*
* creates the XML representation of the array
*
* @access    public
* @param    array    $arr    The array to convert
* @aparam    string    $node    The name given to child nodes when recursing
*
*/
public function createNode( $arr, $node = null)
{
    if (is_null($node))
    {
        $node = $this->root;
    }
    foreach($arr as $element => $value) 
    {
        $element = is_numeric( $element ) ? $this->node_name : $element;

        $child = $this->createElement($element);
        $node->appendChild($child);

        if (is_array($value))
        {
            self::createNode($value, $child);
        }
		else if (strlen($value) > 0)
		{
			$child->appendChild($this->createCDataSection($value));
		}
    }
}
/*
* Return the generated XML as a string
*
* @access    public
* @return    string
*
*/
public function __toString()
{
    return $this->saveXML();
}

/*
* array2xml::query() - perform an XPath query on the XML representation of the array
* @param str $query - query to perform
* @return mixed
*/
public function query($query)
{
    return $this->xpath->evaluate($query);
}

} // end of class

?>`

getGreekSongJson.php

`<?
header('Access-Control-Allow-Origin: *');

include "grk_api_func.php";

$song = getMp3StreamTitle('https://streamyourdream.org:8138/stream', 19200);

$array = array(
array(
'songTitle'=>htmlentities($song))
);

try
{
echo json_encode($array, JSON_UNESCAPED_SLASHES);
}
catch (Exception $e)
{
echo $e->getMessage();
}

?>`

grk_config.xml

<?xml version="1.0" encoding="utf-8"?> <Config> <Url>https://streamyourdream.org:8138/stream</Url> <BackupUrl>https://streamyourdream.org:8138/stream</BackupUrl> <ThirdUrl>https://streamyourdream.org:8138/stream</ThirdUrl> <MiniUrl>https://streamyourdream.org:8138/stream</MiniUrl> <SlideShowVisible>true</SlideShowVisible> <NoPlayer>We are sorry but currently there's no streaming server available. Please try again later by refreshing this page</NoPlayer> <MessageSent>Message Sent!</MessageSent> <ReplyPageReturn>Click here to return</ReplyPageReturn> <SongLiked>was added to database. Thank you!</SongLiked> <SongAlreadyLiked>has been already added to database. Thank you!</SongAlreadyLiked> <LikeFacebookMessage>#GnisiosTracks</LikeFacebookMessage> <MiniMessage>This is the NON-Members Player!!!</MiniMessage> </Config>

I would appreciate any help in fixing this!

Thank you again…

Hello. Great script!)
Please tell me how I can grab the stream name from Metadata? (Stream-Name)