Get the metadata from a remotely hosted MP3 File using php

get_remote_mp3_metadata.php

<?php

/* Firstly, I didn’t create all of this. I’ve just making it easy to understand with a full example.

You can read more of it here, but only because of archive.org. https://web.archive.org/web/20160106095540/http://designaeon.com/2012/07/read-mp3-tags-without-downloading-it/

To begin, download this library from here: http://getid3.sourceforge.net/

When you open the zip folder, you’ll see ‘getid3’. Save that folder in to your working folder.

Next, create a folder called “temp” in that working folder that the following script is going to be running from.

Basically, what it does is download the first 64k of the file, and then read the metadata from the file.

I enjoy a simple example. I hope this helps.
*/


require_once("getid3/getid3.php");

$url_media = "http://example.com/myfile.mp3"

$a=getfileinfo($url_media);

echo"<pre>";

echo $a['tags']['id3v2']['album'][0] . "\n";  
echo $a['tags']['id3v2']['artist'][0] . "\n";  
echo $a['tags']['id3v2']['title'][0] . "\n";  
echo $a['tags']['id3v2']['year'][0] . "\n"; 
echo $a['tags']['id3v2']['year'][0] . "\n";  

echo "\n-----------------\n";

//print_r($a['tags']['id3v2']['album']);

echo "-----------------\n";

//print_r($a);

echo"</pre>";

function getfileinfo($remoteFile)

{

$url=$remoteFile;
$uuid=uniqid("designaeon_", true);
$file="temp/".$uuid.".mp3";
$size=0;
$ch = curl_init($remoteFile);
//==============================Get Size==========================//
$contentLength = 'unknown';
$ch1 = curl_init($remoteFile);
curl_setopt($ch1, CURLOPT_NOBODY, true);
curl_setopt($ch1, CURLOPT_RETURNTRANSFER, true);
curl_setopt($ch1, CURLOPT_HEADER, true);
curl_setopt($ch1, CURLOPT_FOLLOWLOCATION, true); //not necessary unless the file redirects (like the PHP example we're using here)
$data = curl_exec($ch1);
curl_close($ch1);
if (preg_match('/Content-Length: (\d+)/', $data, $matches)) {
$contentLength = (int)$matches[1];
$size=$contentLength;
}
//==============================Get Size==========================//


if (!$fp = fopen($file, "wb")) {
echo 'Error opening temp file for binary writing';
return false;
} else if (!$urlp = fopen($url, "r")) {
echo 'Error opening URL for reading';
return false;
}
try {
$to_get = 65536; // 64 KB
$chunk_size = 4096; // Haven't bothered to tune this, maybe other values would work better??
$got = 0; $data = null;

// Grab the first 64 KB of the file
while(!feof($urlp) && $got < $to_get) { $data = $data . fgets($urlp, $chunk_size); $got += $chunk_size; } fwrite($fp, $data); // Grab the last 64 KB of the file, if we know how big it is. 
if ($size > 0) {
curl_setopt($ch, CURLOPT_FILE, $fp);
curl_setopt($ch, CURLOPT_HEADER, 0);
curl_setopt($ch, CURLOPT_RESUME_FROM, $size - $to_get);
curl_exec($ch);
}

// Now $fp should be the first and last 64KB of the file!!

@fclose($fp);
@fclose($urlp);
} 
catch (Exception $e) {
@fclose($fp);
@fclose($urlp);
echo 'Error transfering file using fopen and cURL !!';
return false;
}

$getID3 = new getID3;
$filename=$file;
$ThisFileInfo = $getID3->analyze($filename);
getid3_lib::CopyTagsToComments($ThisFileInfo);
unlink($file);
return $ThisFileInfo;
}

?>