Trust Pilot Business Generated Links Integration

I am trying to integrate Trust Pilot into our website. For the project I am doing we have to use the Business Generated Links integration which is the attached document. What I need is a page written in PHP to take data from the page url to create a JSON formatted payload object which then has to be encrypted with AES-CBC and posted to Trust Pilots url which will be displayed in an iframe on the page. These are the variables I need to pass through to Trust Pilot. $storename=$_GET['storename']; $firstname=$_GET['firstname']; $lastname=$_GET['lastname']; $email=$_GET['email']; $clientnumber=$_GET['clientnumber']; $name=urlencode($firstname.' '.$lastname); $storename will be used as the tag. Encryption Keys will be supplied.