我正在尝试在我的 mp3 文件中嵌入艺术家姓名、曲目标题、专辑、曲目编号和流派等相关信息。除了持续时间之外，我设法检索了所有这些。它只是给了我一个空白的结果。不再支持 TLE/TLEN 标签了吗？以下是我使用的功能：
<?php
// set error reporting level
if (version_compare(phpversion(), '5.3.0', '>=') == 1)
error_reporting(E_ALL & ~E_NOTICE & ~E_DEPRECATED);
else
error_reporting(E_ALL & ~E_NOTICE);
// gathering all mp3 files in 'mp3' folder into array
$sDir = 'mp3/';
$aFiles = array();
$rDir = opendir($sDir);
if ($rDir) {
while ($sFile = readdir($rDir)) {
if ($sFile == '.' or $sFile == '..' or !is_file($sDir . $sFile))
continue;
$aPathInfo = pathinfo($sFile);
$sExt = strtolower($aPathInfo['extension']);
if ($sExt == 'mp3') {
$aFiles[] = $sDir . $sFile;
}
}
closedir( $rDir );
}
// new object of our ID3TagsReader class
$oReader = new ID3TagsReader();
// passing through located files ..
$sList = $sList2 = '';
foreach ($aFiles as $sSingleFile) {
$aTags = $oReader->getTagsInfo($sSingleFile); // obtaining ID3 tags info
$sList .= '<tr><td>'.$aTags['Title'].'</td><td>'.$aTags['Album'].'</td><td>'.$aTags['Author'].'</td>
<td>'.$aTags['AlbumAuthor'].'</td><td>'.$aTags['Track'].'</td><td>'.$aTags['Year'].'</td>
<td>'.$aTags['Lenght'].'</td><td>'.$aTags['Lyric'].'</td><td>'.$aTags['Desc'].'</td>
<td>'.$aTags['Genre'].'</td></tr>';
$sList2 .= '<tr><td>'.$aTags['Title'].'</td><td>'.$aTags['Encoded'].'</td><td>'.$aTags['Copyright'].'</td>
<td>'.$aTags['Publisher'].'</td><td>'.$aTags['OriginalArtist'].'</td><td>'.$aTags['URL'].'</td>
<td>'.$aTags['Comments'].'</td><td>'.$aTags['Composer'].'</td></tr>';
}
// main output
echo strtr(file_get_contents('main_page.html'), array('__list__' => $sList, '__list2__' => $sList2));
// class ID3TagsReader
class ID3TagsReader {
// variables
var $aTV23 = array( // array of possible sys tags (for last version of ID3)
'TIT2',
'TALB',
'TPE1',
'TPE2',
'TRCK',
'TYER',
'TLEN',
'USLT',
'TPOS',
'TCON',
'TENC',
'TCOP',
'TPUB',
'TOPE',
'WXXX',
'COMM',
'TCOM'
);
var $aTV23t = array( // array of titles for sys tags
'Title',
'Album',
'Author',
'AlbumAuthor',
'Track',
'Year',
'Lenght',
'Lyric',
'Desc',
'Genre',
'Encoded',
'Copyright',
'Publisher',
'OriginalArtist',
'URL',
'Comments',
'Composer'
);
var $aTV22 = array( // array of possible sys tags (for old version of ID3)
'TT2',
'TAL',
'TP1',
'TRK',
'TYE',
'TLE',
'ULT'
);
var $aTV22t = array( // array of titles for sys tags
'Title',
'Album',
'Author',
'Track',
'Year',
'Lenght',
'Lyric'
);
// constructor
function ID3TagsReader() {}
// functions
function getTagsInfo($sFilepath) {
// read source file
$iFSize = filesize($sFilepath);
$vFD = fopen($sFilepath,'r');
$sSrc = fread($vFD,$iFSize);
fclose($vFD);
// obtain base info
if (substr($sSrc,0,3) == 'ID3') {
$aInfo['FileName'] = $sFilepath;
$aInfo['Version'] = hexdec(bin2hex(substr($sSrc,3,1))).'.'.hexdec(bin2hex(substr($sSrc,4,1)));
}
// passing through possible tags of idv2 (v3 and v4)
if ($aInfo['Version'] == '4.0' || $aInfo['Version'] == '3.0') {
for ($i = 0; $i < count($this->aTV23); $i++) {
if (strpos($sSrc, $this->aTV23[$i].chr(0)) != FALSE) {
$s = '';
$iPos = strpos($sSrc, $this->aTV23[$i].chr(0));
$iLen = hexdec(bin2hex(substr($sSrc,($iPos + 5),3)));
$data = substr($sSrc, $iPos, 9 + $iLen);
for ($a = 0; $a < strlen($data); $a++) {
$char = substr($data, $a, 1);
if ($char >= ' ' && $char <= '~')
$s .= $char;
}
if (substr($s, 0, 4) == $this->aTV23[$i]) {
$iSL = 4;
if ($this->aTV23[$i] == 'USLT') {
$iSL = 7;
} elseif ($this->aTV23[$i] == 'TALB') {
$iSL = 5;
} elseif ($this->aTV23[$i] == 'TENC') {
$iSL = 6;
}
$aInfo[$this->aTV23t[$i]] = substr($s, $iSL);
}
}
}
}
// passing through possible tags of idv2 (v2)
if($aInfo['Version'] == '2.0') {
for ($i = 0; $i < count($this->aTV22); $i++) {
if (strpos($sSrc, $this->aTV22[$i].chr(0)) != FALSE) {
$s = '';
$iPos = strpos($sSrc, $this->aTV22[$i].chr(0));
$iLen = hexdec(bin2hex(substr($sSrc,($iPos + 3),3)));
$data = substr($sSrc, $iPos, 6 + $iLen);
for ($a = 0; $a < strlen($data); $a++) {
$char = substr($data, $a, 1);
if ($char >= ' ' && $char <= '~')
$s .= $char;
}
if (substr($s, 0, 3) == $this->aTV22[$i]) {
$iSL = 3;
if ($this->aTV22[$i] == 'ULT') {
$iSL = 6;
}
$aInfo[$this->aTV22t[$i]] = substr($s, $iSL);
}
}
}
}
return $aInfo;
}
}
?>