This is a short tutorial on how to use the sessions (in PHP4) with a user, form-based login. This would be useful for just about any site where you had a "members only" area and wanted to validate the users from a database or anything else. The examples used authorize off of a MySQL database on the same server.

This comprehensive 8-page online tutorial explains how to authenticate and track users with PHP. Main topics include: HTTP Authentication with PHP, Validation Against a Flat File, Authenticate Against a Database, Using Cookies, and Sessions and User Preferences.

Sometimes you need to add an extra protection to password-protected website. This article explains how access to the login page can be restricted after three unsuccessful login attempts. This schema uses visitors IP address to store log attempts in the database and block access to login feature for 30 minutes after third unsuccessful attempt.

This tutorial along with sample code explains how to make a hardcoded admin password gateway using PHP. It also covers how to use .htaccess for server side password protection.

Show your visitors that membership does have its privileges! If you haven't already put the protected membership area of your website into place, that's the first order of business. Pick up some quality subscription software that will streamline the subscription process and manage your membership database.

This tutorial covers the concepts of creating a membership system from A to Z on your website. It includes signup, activation, login and lost password recovery as well as Session Management. It is very in depth and extensive.

Welcome, all to the first of a series of articles to implementing your own custom user registration and authentication modules. I strongly suggest you develop this part of your website as a module, otherwise you'll be tied to a particular implementation when you decide to make changes (and trust me - you'll make the changes!!

This advanced PHP tutorial will teach you how to create a login system using MySql. It will take you through user registration, user verification and a forgot password feature.

The logic (and method) behind adding an e-mail validation system to an existing PHP user registration system

You can now implement password-protected pages without Telnet access to protected directories in your web site. Then you can use these password protected directories to sell downloadable products or provide premium access to members. In this password protection tutorial, we will explain how to create access authorization using only FTP. This will be helpful to most webmasters who want to create authentication files but who do not have Telnet. Unfortunately, most of the restricted access tutorials assume that the webmaster can use Telnet, which of course, is not true. Now you can sell your software, documents, images or music online. You can easily protect files and directories that require the use of a username and password, and you don’t have to be a computer programmer to do it!