<?php # Script 4.3 - login.php /* This page uses PEAR Auth to control access. * This assumes a database called "auth", * accessible to a MySQL user of "username@localhost" * with a password of "password". * Table definition: CREATE TABLE auth ( username VARCHAR(50) default '' NOT NULL, password VARCHAR(32) default '' NOT NULL, PRIMARY KEY (username), KEY (password) ) * MD5() is used to encrypt the passwords. */ // Need the PEAR class: require_once ('Auth.php'); // Function for showing a login form: function show_login_form() { echo '<form method="post" action="login.php"> <p>Username <input type="text" name="username" /></p> <p>Password <input type="password" name="password" /></p> <input type="submit" value="Login" /> </form><br /> '; } // End of show_login_form() function. // Connect to the database: $options = array('dsn' => 'mysql://username:password@localhost/auth'); // Create the Auth object: $auth = new Auth('DB', $options, 'show_login_form'); // Add a new user: $auth->addUser('me', 'mypass'); ?><!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> <html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en" lang="en"> <head> <meta http-equiv="content-type" content="text/html; charset=iso-8859-1" /> <title>Restricted Page</title> </head> <body> <?php // Start the authorization: $auth->start(); // Confirm authorization: if ($auth->checkAuth()) { echo '<p>You are logged in and can read this. How cool is that?</p>'; } else { // Unauthorized. echo '<p>You must be logged in to access this page.</p>'; } ?> </body> </html>
Here,
1. Before run this program you need to install PEAR.
2. show_login_form() function creates the login form. The only requirements are that this form has one input called username and another called password.