Amazon_S3_And_CloudFront::generate_unique_filename PHP Method

    function generate_unique_filename($name, $ext, $time)
    {
        $count = 1;
        $filename = $name . $count . $ext;
        while ($this->does_file_exist($filename, $time)) {
            $count++;
            $filename = $name . $count . $ext;
        }
        return $filename;
    }