So now that your web site is up and running, you're interested in giving your users' the ability to login to their own personalized account with a membership system unique to your web site. Well guess what The process isn't really that difficult, and if you just follow along with this tutorial, you can figure out how to design one yourself.

Create a membership system where you can restrict a users access. This tutorial is very detailed and is easy to follow.

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

This is a simple login script that allows you to login to your website and stay logged in.

This is a short tutorial that explains how you can protect a web page from users. The code in this tutorial is only about 5 lines long, and will protect any PHP page. HTTP Authentication involves the browser displaying a window for the user to log in, once the user logs in the page is displayed. If the user fails to log in, a failure notice is displayed.

This tutorial sows you how a simple php login system is created.

Simple PHP based webpage protection will protect one page and is ideal for setup scripts and admin pages. Configuration is done on one file and setup is less than a minute. Easy to use.

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.

Get started using UMA. UMA is a user management and authentication system written in PHP. UMA can greatly reduce the time and effort put into every project.

This is a built in admin system that allows users to login and logout.

This tutorial will teach you how to create your own login system with PHP, using sessions and the PEAR::DB classes. Want to password protect your pages and only allow members to see them Then read this.

HTTP as a protocol is stateless, which doesn't make it easy for a developer. For example, your web server sends out a page to someone ordering from an online shop, and then forgets all about it. A few seconds later, the same person sends another request, ordering another item. As far as the web server is concerned, it could be an entirely different person. So to make sure the right orders are associated with the right person, a developer has to employ some sneaky tricks. Before PHP4, you could have used something like PHPLIB for session management. But PHP4 comes with a complete set of sessioning functions. This article explains how to use them.

This step-by-step guide presents a free cut-and-paste example code of a username and password login web based system. Developed using PHP, MySQL and JavaScript.

This graphical tutorial will show you how to password protect sections of your Web site with a username and password script.

This tutorial teaches you to initiate user authentication using PHP, and then to authenticate users by matching the value of the global variables $PHP_AUTH_USER, and $PHP_AUTH_PW to a list of valid usernames and passwords. The sample code included with this tutorial will show you how to use either hard-coded values, a flat file, an existing .htpasswd file or a database table to manage your valid usernames and passwords. This tutorial is intended for the PHP programmer who is generally familiar with authentication, but who would be interested in learning a practical method for authenticating access to one or more Web site pages.

One cool thing about php is that you can fairly easily validate users before displaying content on a page by page basis. Let's say you don't want to restrict the entire directory using htaccess, this is a neat alternative. This tutorial shows how to create a simple page-based login system using PHP and mySQL.

One of the new great features with PHP4 is the session management feature. It allows you to store variables in a session 'object' during a user visit. This article discusses what a session and a session variable are, and what it can do.

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.

Here is a step-by-step tutorial on how to create a user authentication system using PHP/MySQL. It takes you through creating an appropriate MySQL table, and a sample PHP login form script.

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.