Login & Logout tutorial
April 1st, 2009
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Create a file for Login and Logout (PHP + MySQL) using with a SESSION variable. This file contains Login form, Login authorize program and Logout program. All in one but Short and Easily.
This tutorial require 2 PHP files and 1 table of mySQL database.
- index.php this file is the Login and Logout file.
- main.php this file is the target when login is O.K.
- Database “tutorial” and table “admin” with 3 fields: id(auto_increment), username(varchar, 50), password(varchar, 32).
* The “password” field is design for md5() password for more sucurity.Then put a record into this table. In this tutorial, put a record with name “admin” and password “81dc9bdb52d04dc20036dbd8313ed055“. This password was encrypted by md5() function from the real password “1234“.* When you test this script you must to put the real password (1234) in “password” box.
• index.php
The mainly file for do 3 things.
- Login form. Including 2 fields “username” and “password” and submit button “Login”.
- Login authorize program. Do authorize check after you submit form, if passed in username and password, this page will re-direct to main.php. If not, show the invalid user or password message.
- Logout. Clear the login session when come back or refresh this page.
