Re: File upload difference between browsers

Graham Cossey wrote:

I have a problem uploading a file in IE6 or Firefox1.0 but it works fine using Opera7.54. The problem is that I want to ensure that the file being uploaded is a CSV file, so I test the $_FILES['file']['type'] value. In Firefox & IE it is returned as "application/octet-stream" but in Opera it is returned as "text/comma-separated-values", the latter being what I would expect. The posting form has: enctype="multipart/form-data" Can anyone offer some advice on how I can reliably test for a valid CSV file? (At least I have some security built-in, in so much as you have to use Opera to upload files !!)

In Mozilla, you can go to Preferences -> Naviator -> Helper Applications. Then click "New Type", fill in MIME type, description and extension, and that should be it. And then ask everyone to do that :) Or better don't rely on client supplied values. You can use mime_content_type() to find out the real mime type.