PHP script to restrict the access to a URL

PHP script to restrict the access to a URL It is to create a PHP script which limits the access to a unique URL and the underlying time. You can see an example of this unique URL here Http://[login to view URL] Of these URL's exist 2500 unique. The URLs differ from the appended parameter after the identifier "cd" and start with "MM-" After the first call, the URL may only be accessible for 184 days. What is there to do 1. Create a MySql data model and document the relevant database fields 2. Create a PHP script which gives access to the 2500 attached codes (cd =) To exactly 184 days. The PHP code should be natively programmed. DO NOT use any PHP framework for programming. For explanation: Each of the 2500 URL is sent by me to 2500 contacts via EMail. When a recipient reads the e-mail and clicks on the link (URL), it is redirected to the web page. The program now tries the URL parameter, e.g. MM-58A2FC2C2CC00 in the database. If available, then set a time stamp. If not present, then redirect to "[login to view URL]". Any access to the subdomain which has no or a wrong URL parameter must be redirected to error.html. This includes URLs such as [login to view URL] Each access to the URL must be checked for the duration of the 184 days. If the duration was exceeded then forward to [login to view URL] The programming must be designed in such a way that the general access time of the 184 days can be changed at any time. Accesses that have already been saved to the database are not affected and remain valid for 184 days. So, somewhere you should be able to edit the 184 days at any time. You will work on our web server. You get FTP access as well as your own PHPMyadmin and an empty database as well as the 2500 URL’s