I'd like to only allow users to be able to click a link once, like this one:
http://www.blah.com/download.php?file=zFZpj4b2AkEFz%2B3O
Each user has an e-mail sent with a unique link and when they click on it I'd like to set a cookie on the SERVER so I know to reject that link's access again.
Any ideas welcome.
Thank you.