ECS Client Php

Hi all, I'm new in this technology.

I have to develop a new application in php. This application have to write and read file from/to a storage ECS Dell.

I'm reading some documentation but I don't understand how I can do this.

I saw an example in Java and I understood this:

1) I have to create a connection with the storage

2) I have to create a bucket

3) I have to create the object that I have to put inside the bucket, But this object has a particular structure or could be everything?

4) use method for manage this object

Can anyone help me to understand better how can build this application? There is some Documentation that can I read?

Thanks

Luca