SquareUp Payment Processing Script In PHP

I am looking for a script developed in PHP that will take a payment from a credit or debit card using SquareUp Payment Processing facilities. The end product will be a standalone script that will be further modified and integrated into one of our subscription payment forms later down the line.

The finished script will need to include the following default variables hardcoded at the top of the script and referenced where necessary for ease of updates;

Sandbox Application ID
Sandbox Access Token
Amount to Charge
Card Number
CVV
Expiry Date
Registered Postcode

I will provide my Sandbox information and Test Payment Card details to the winning bidder and payment will be released upon delivery of a script that successfully registers a sandbox payment in my SquareUp Console.