MIME types

Hi!
I am trying to validate that a file submitted through a form is a TEXT file.
When I use $_FILES['userfile_PFAM']['type']=='text/plain' it works, but only for files with .txt extension.

But the user may also have a file containing text data and may not have given the .txt extension (for example I found that application/octet-stream also reffers to TEXT files).
Does anybody know which of the MIME types of PHP must I check for? The MIME types that reffer to TEXT I mean.

Thanx!

You should really be checking the mime type of the file itself (on the server, in the temporary directory is usually good) rather than relying on the MIME information send from the browser which is easy to fake.

Try playing around with mime_content_type().

The MIME type of plain text files is quite simply text/plain as you already know. Some browsers will (wrongly) send through the application/octet-stream if they're too lazy to send the right type.