php - How do I open an mp3 file and check for frames to validate it? -

php - How do I open an mp3 file and check for frames to validate it? -

i can't seem find proper check if file mp3.

some files homecoming audio/mpeg , others application/octet-stream while playable media players.

someone suggested opening file , check valid frames. wondering how going start php. give me light.

i tried this, results not right.

$file = 'file_dir'; $finfo = finfo_open(fileinfo_mime_type); $mime = finfo_file($finfo, $file); echo $mime;

php validation mp3 mime-types