Изменение ID3v1 MP3 тегов
PECL id3 >= 0.1
<?php
$data = array(
"title" => "Re:Start",
"artist" => "Re:\Legion",
"comment" => "A nice track"
);
$result = id3_set_tag("path/to/example.mp3", $data, ID3_V1_0);
if ($result === true) {
echo "Tag succesfully updated\n";
}