To increase user experience, I would like to warn the user that the file is too big (let’s say > 8M) before sending the whole file (which may take some time due to the size and the client connection). All kind of fields can be “pre-validated” client-side for a better user experience, but I’m stuck on the file size problem.
Is there a solution to this problem?
[edit] I’m also open to APC for PHP, which features the rfc 1867. I’m not sure if it’s possible to cancel the form upload if we detect the size is too big. I certainly will award bounty if someone show me how to do it.
How about this Flash based uploader? http://swfupload.org/
This seems compelling
Since it’s open source if you were keen you could combine the graceful degradation with the other HTML5 and IE only solutions to cover most browser installs:
http://code.google.com/p/swfupload/