LISTING OBJECTS(files) explained for best use and making it easy
I made this because it took me years to figure out some of these things that should have been easy.
For developers like you download XAMPP: https://www.apachefriends.org/download.html
Then install composer and test it https://www.wdb24.com/how-to-install-composer-on-windows-with-xampp/
With Command prompt or Powershell Admin - in windows in your folder C:\xampp\htdocs\AWS-S3-finally-easy-php-uploader\ run:
composer require aws/aws-sdk-php
https://aws.amazon.com/ https://www.cloudberrylab.com/resources/blog/how-to-find-your-aws-access-key-id-and-secret-access-key-and-register-with-cloudberry-s3-explorer/
Create a new key RIGHT NOW.... it will save your butt! (I had so many problems by "Not" doing this, and you can still keep your old keys anyways)
I will have a course on https://www.secretlesson.com about how to use S3 and how to secure it.