Codeigniter multiple file upload messes file extension

Question

I am trying to get a multiple upload library working for my Codeigniter based website. I have it working almost but I have a slight problem if I upload more than one image,

Answer 1

I was able to get multiple file uploads to work with clux's method but I had to modify the upload class slightly (I'm using Codeigniter 2). First I created a duplicate of the CI upload class into my applications library.

Line 143:

public function do_upload($field = 'userfile')

change to

public function do_upload($field = 'userfile', $i = 0)

And between lines 160 and 200, you must add [$i] to the end of the $_FILES variables.

Example:

is_uploaded_file($_FILES[$field]['tmp_name'])

change to:

is_uploaded_file($_FILES[$field]['tmp_name'][$i])

I believe there is a total of 9 of them.