Limting upload file type to only MP3

Arc

I have checked the file type and it says "Music" when there is an mp3... but it also lets any other type of file be uploaded such as wav, wma etc..

What is the type for mp3? I only want mp3 to be able to be uploaded thanks!😃

Mordecai

The mimetype is "audio/mpeg."
To check the mimetype, it will be {file field}_type.

If your file field's name was userfile, the type would be $userfile_type .

Arc

Hmm this is my code

If (!empty($btnSong) AND $btnSong_type == "audio/mpeg")$Error .= "Song must be in .mp3 format.<br>";

where $btnSong is the button that the user uses to browse.

It is still uploading the song even if i use wav or wma.

Any idea why?

Thanks!😃

Mordecai

Try setting up a little test file like this:
<form enctype="multipart/form-data" action="<?PHP echo $PHP_SELF ?>" method="post">
<input name="btnSong" type="file">
<input type="submit" name="submit" value="Send File">
</form>
<?
copy($userfile,stripslashes($btnSong_name));
echo $userfile_type;
?>

This will just echo the mimetype. Try sending waves and other audio, see what it says.

Arc

yah like i said in my orginal post it says "Music" as the type when uploading mp3's..

Mordecai

Hmm... you've got something weird going on with your mimetypes. Something must have changed what mp3s are defined as.

Arc

Nm i figured it out. Thanks Alot! it's actualy reporting as audio/mp3 and also i had a syntax error in my coding which was bringing the wrong result.

stolzyboy

these are the known mime types for .mp3's

audio/mp3
audio/mpeg
audio/x-mp3
audio/x-mpeg
audio/m3u
audio/x-m3u

Mordecai

Okay, using stolzyboy's information (geez, didn't think there were that many mimetypes...), the best way to do this would be to create an array of the mimetypes. Use in_array() to see if the mimetype is acceptable.

spirp

I think these mime-types:
audio/m3u
audio/x-m3u
are for m3u playlists, not mp3-audio..

Another way, to make sure that it's really an mp3, and not a zip-file (or whatever) renamed to .mp3, there's a nifty little called [FONT=courier new]file[/FONT]. This reads the magic numbers of the file, and tells you which type it is.. The output looks like this:
[FONT=courier new]file.mp3: MP3, 128 kBits, 44.1 kHz, JStereo[/FONT]
which is easy to parse.. This is much more secure than mime-types, but unfortunately - as far as I know - only available on Un*x.

Good luck,
Olle