PHP-LOGOUT && REGISTRATION

Now we will make a log-out page

Code for log-out page

<?php

require 'core.inc.php';

session_destroy();

header('Location: '.$http_referer);

?>

Paste this code and make the name of the file as “logout.php”.

Now we will make again a vital page which is for Registration

Pest this code

<?php

if(isset($_POST['username']) && isset($_POST['password'])) {

$username = $_POST['username'];

$password = $_POST['password'];

$password_hash = md5($password);

if(!empty($username) && !empty($password)) {

$query = "SELECT `id` FROM `users` WHERE `username`='$username' AND `password`='$password_hash'";

if($query_run = mysql_query($query)) {

$query_num_rows = mysql_num_rows($query_run);

if($query_num_rows==0) {

echo "invalid username/password";

} else if($query_num_rows==1){

echo $user_id = mysql_result($query_run, 0, 'id');

$_SESSION['user_id']=$user_id;

@header("Location: index.php");

}

}

} else{

echo "you must supply data";

}

}

?>

<form action="<?php echo $current_file; ?>" method="post">

Username: <input type="text" name="username"> Password: <input type="password" name="password">

<input type="submit" value="Log in">

</form>

Save the file as “loginform.inc.php”

Finally make a file name as “register_success.php”

And Paste

successfully registered.

You have made registration page.