PHP 获取远程.mp3文件的元数据(从URL)

Question

我想得到 song name artist name song length bitrate 等从 远程.mp3文件 诸如 http:/shiro-desu.comscr11.mp3 . 我试过了 getID3 脚本，但据我所知，它不能用于远程文件，因为我得到了这个错误。"不支持远程文件，请先将文件复制到本地" 另外，这个代码。

<?php
$tag = id3_get_tag( "http://shiro-desu.com/scr/11.mp3" );
print_r($tag);
?>

也没有用 "Fatal error: 在home4shiropublic_htmlscrindex.php第2行调用未定义的函数id3_get_tag()"

Answer 1

由于你没有提到你的错误，我正在考虑一个常见的错误案例 undefined function

The error you get (undefined function) means the ID3 extension is not enabled in your PHP configuration:

如果你没有Id3扩展名文件，请检查 此处 的安装信息。

Answer 2

首先，这不是我创造的，我只是用一个完整的例子让它容易理解。

你可以在这里阅读更多的内容，但只是因为archive.org。https:/web.archive.orgweb20160106095540http:/designaeon.com201207read-mp3-tags-without-downloading-it。

要开始，请从这里下载这个库。http:/getid3.sourceforge.net

当你打开zip文件夹时，你会看到 "getid3"。将该文件夹保存到你的工作文件夹中。

接下来，在工作文件夹中创建一个名为 "temp "的文件夹，下面的脚本将从该文件夹中运行。

基本上，它所做的是下载文件的前64k，然后从文件中读取元数据。

我喜欢一个简单的例子。我希望这能帮助你。

<?php

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;
}

?>