PHP: Get file extension not working on uploads to S3

Question

I am using the Amazon S3 API to upload files and I am changing the name of the file each time I upload.

So for example:

Dog.png > 3Sf5f.png

Now I got

Answer 1

ok here's another try that I used when I had trouble getting the extension on the server side. what I did was, I used javascript to extract the file extension and the send it via post.

//rest of the form

in the next php file you can directly use $_POST['ext'] as extension. hope that helped. let me know if you have any trouble implementing this