title: How to overlay an image with text which comes from the URL?
body: <p>To begin let me summary the situation:</p>
  
  <p>We currently run a reward system for a local retailer, at the moment the vouchers which are emailed out to customers are a simple PNG file which can be printed and returned to the store for a promotional discount. </p>
  
  <p>We would like to overlay the customers member number and name onto the voucher when they click a link which is sent to their email address. Our email system allows us to personalise the link which each customer receives. </p>
  
  <p>For example at the moment the customer receives the following link: www.website.com/testvoucher.htm</p>
  
  <p>Now from some limited experience of the matter I understand it would be possible to use php to overlay the voucher image to create personlised vouchers. I imagine the link would become something like this:</p>
  
  <p>www.website.com/testvoucher.php?membernumber='2100000'&amp;membername='Mrs%20Smith'</p>
  
  <p>My question is using php if possible how can I create an image which is personalised from the URL?</p>
  
  <p>Any feedback will be greatly appreciated.</p>
  
  <p>Thanks,</p>