PHP Image Crop upload cropped image

So I have a scenario where I have to upload a cropped image to AWS.

First, I have the basic image upload working (AWS putbucket and all) so that's not the issue.

I also have the cropping of the image working (using imgAreaSelect) so that is also not the issue.

On the PHP side I also grab the image from the $_FILES['file']['tmp_name'] and create a new cropped image (using code similar to found at http://ift.tt/1CrPSne.

However I need a way to grab the new image created on the last line

 imagejpeg($new, $new_filename, 95);

into $_FILES['file']['tmp_name'] in the aws upload here

    $s3->putObject(array(       
    'Body'   => fopen($_FILES['file']['tmp_name'], 'r'),
));