update stock, price from csv and download orders to csv from Amazon - SP-API -- 2

Job ID: 32613314

Budget: $50 – $150 USD

I need a script in PHP to update stock and price on my Amazon store and download orders to csv from Amazon store using SP-API.
Reference document: https://github.com/amz-tools/amazon-sp-api
Related categories: PHP Amazon Web Services RESTful API