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Imagine you are running a great tutorial site that lets users learn about a wide variety of web development techniques. In addition to your normal readers, you have some premium subscription members, as well contributing authors and administrators.

Your problem

You want to restrict users' to only specific pages that their particular account allows access to.

The solution

Implementing an access control list will allow you a great deal of control over what users can and cannot access on your site.

If you view the demo, available with the downloadable source code, you will be greeted with an index page that tests the ACL for each user. You can select different links at the bottom to view the ACL for the different users. If you click on the 'Admin Screen' link near the top, you can view a sample of the admin interface that allows you to manage the users, roles, and permissions. NOTE: The admin system will perform a database restore every 30 minutes to make sure everything stays on the up and up. The download files also implement the ACL security on the admin site, so if user number one doesn't have the 'access admin' permission, you won't be able to access the admin site.

This system will enable you to create different groups of users (i.e. guests, premium members, contributors, and admins). We will be able to set unique permissions for each group, as well as for individual users. Let's get started by setting up our MySQL database.



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