Simple PHP script to upload to S3

I'm in need of a simple PHP script to send files directly from a remote URL to our S3 bucket. I have a cron that runs and checks for files that have not yet been uploaded into the S3 bucket and some of them are very large video files. Due to the size of the files at the remote URLs, I am trying to come up with a solution that doesn't have to download them to our server first before uploading them to S3. I found a StackOverflow that does it, but don't know how to convert it to PHP. [login to view URL] Please respond with "S3 is easy" at the beginning of your response so I know its not a bot. Thank you!