extract mp3 info with php and rename file on linux box
how to get all mp3 info from a file with php and rename based on this tags
download complete file (rename to .php after): mp3-getinfo-tags-rename-php.txt
<?php
clearstatcache();
/*
%f Filename without the path [string]
%F Filename with the path [string]
%k File size in KB [integer]
%a Artist [string]
%c Comment [string]
%g Musical genre [string]
%G Musical genre number [integer]
%l Album name [string]
%n Track [integer]
%t Track Title [string]
%y Year [string]
%C Copyright flag [string]
%e Emphasis [string]
%E CRC Error protection [string]
%L MPEG Layer [string]
%O Original material flag [string]
%o Stereo/mono mode [string]
%p Padding [string]
%v MPEG Version [float]
%u Number of good audio frames [integer]
%b Number of corrupt audio frames [integer]
%Q Sampling frequency in Hz [integer]
%q Sampling frequency in kHz [integer]
%r Bit Rate in kbps (type and meaning affected by -r option)
%m Playing time: minutes only [integer]
%s Playing time: seconds only [integer] (usually used in conjunction with %m)
%S Total playing time in seconds [integer]
%% A single percent sign
*/
// my mp3 directory to recusively iterate thrue
$directory = '/mnt/temp/teachings';
// what info i want from my mp3 file - tags
$info = [
'artist' => '%a',
'year' => '%y',
'comment' => '%c',
'album_name' => '%l',
'track' => '%n',
'track_title' => '%t',
'minutes' => '%m',
'seconds' => '%s',
];
// what my filename will looks like
$fileFormat = '%artist-%year-%comment-%album_name-%track-M%minutesS%seconds.mp3';
// build format usable for shell and use newline as delimiter
$infoParam = implode('\n', $info);
// what this can be...
print '';
// scan folders
$rdit = new RecursiveDirectoryIterator($directory);
foreach (new RecursiveIteratorIterator($rdit) as $file) {
// do the job only for files & mp3 ext
if($file->isFile() && strtolower($file->getExtension()) == 'mp3') {
// get me the id3 tags (mp3info v1 on my debian)
$mp3Info = shell_exec('mp3info -p "' . $infoParam . '" ' . $file);
// is the info what i expect?
$mp3InfoArray = explode("\n", $mp3Info);
if(sizeof($mp3InfoArray) != sizeof($info)) {
print "check:$file
";
continue;
}
// make me array with combined $info keys and mp3 info values
$mp3InfoArray = array_combine(array_flip($info), $mp3InfoArray);
// build new filename
$newFile = sprintfa($fileFormat, $mp3InfoArray);
// clean a bit
$newFile = str_replace([',', '\\', ' ', '/', '%'], '_', $newFile);
$newFile = str_replace(['&'], ['and'], $newFile);
$newFile = iconv('UTF-8', 'ASCII//TRANSLIT', utf8_encode($newFile));;
$newFile = $file->getPath() . '/' . $newFile;
// is the new file equal to the old filename?
if(strcmp($file, $newFile) != 0) {
// does the newfile already exists?
if(file_exists($newFile)) {
$newFile = substr_replace($newFile, uniqid('-') . '.mp3',-4, 4);
}
rename($file, $newFile);
// what we did with old to new file
print "$file:$newFile
";
flush();
}
}
}
function sprintfa ($format, array $values)
{
foreach ((array)$values as $k => $v) {
$format = str_replace("%$k", $v, $format);
}
return $format;
}
