$_SERVER["CONTENT_LENGTH"] returning zero when uploading a file using XmlHttpRequest
Solved it! Seems the jQuery script I am using fails under firefox 3.5.x, I updated to 3.6.9 and it works fine.
Now I have to find some way to make it backwards compatible with older versions of firefox.
Did you set your encoding type to multipart/form-data ?
<form action="upload.php" method="post" enctype="multipart/form-data"> ... <input type="file" ... /> ...</form>
It's possible that chunked encoding is being used, which wouldn't send content length.