CODEWITHSUNDEEP
phpmime-types
wazoox
wazoox

Reputation: 1392

Where does PHP finfo() gets its file information? It doesn't match "file -i" output

It's annoying, I can't get the correct MIME type for many different files using php finfo().

Here's my little test program:

<? $finfo = new finfo(FILEINFO_MIME);
echo $finfo->file('/mnt/partage/Film/Sintel.2010.1080p.mkv');

Its output is completely incorrect:

application/octet-stream; charset=binary

Here's file -bi /mnt/partage/Film/Sintel.2010.1080p.mkv output:

video/x-matroska; charset=binary

Apparently php finfo() doesn't use the proper magic file. However there aren't many options: either it's /usr/share/file/magic or /etc/magic.mime, none of them works from php.

I'm running this on Debian stable (wheezy) with backports libmagic. The problem occurs both when calling the program from Apache or the command line.

Upvotes: 3

Views: 1696

Answers (2)

Sjoerd
Sjoerd

Reputation: 75568

Fileinfo uses data that is compiled with PHP. It does not use libmagic, so changing your libmagic has no effect on PHP. The only option is to use a newer PHP version, or compile it yourself with a new data file.

Edit: or pass the $magic_file parameter to finfo_open, or set the MAGIC environment variable.

Upvotes: 3

Think Different
Think Different

Reputation: 2815

MIME types are not similar on different OS. I am afraid you can't just rely on MIME types. I would suggest to do check on extension or add all possible MIME types for a file type. I had the same issue few weeks ago and I had to rely on extension of the file.

You can try with :

$info = pathinfo($file);

echo $info['extension']; //Will be mkv in your case

Upvotes: 0

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