Shopify API Expert - PHP&MSQL Interface

General information for the business: We sell candy online.
Description of requirements/functionality: Looking for a SHOPIFY API Expert to create a PHP Script which talks to SHOPIFY API and exports entire product database of SHOPIFY to MySQL DB and imports entire product database from MySQL DB.

I don't know if that is possible, but if you are an exper you will be able to tell me!

You will provide a MySQL DB Schema for our server operators who will setup the MYSQL DB then provide a PHP script which will talk to the SHOPIFY API of our Shopify Shop and allow us to download the entire Shopify Product Database to the MySQL DB or Upload to MySQL DB at the push of a button.

The script will be password protected and with 2 buttons 1 for import 1 for export and will return the result of the import.

No access will be provided to our server, but you will have access to our shopify site as necessary.

We will access the MySQL DB via ODBC so we can update product data and then rexport data back to Shopify.

Please make sure you understand fully our requirement as the above will be the full brief provided apart from answers to questions.

Thanks.
Specific technologies required: SHOPIFY API, MYSQL, PHP
OS requirements: Linux
Extra notes: