In PHP, Simple Session Example Of Login And Logout
<?php session_start(); if(isset($_SESSION['username']) && isset($_POST['action']) && 'logout' === $_POST['action']){ unset($_SESSION['username']); } if(isset($_POST['username']) && isset($_POST['action']) && 'login' === $_POST['action']){ $username = filter_var($_POST['username'], FILTER_SANITIZE_STRING); $usernmae = trim($username); if($username){ $_SESSION['username'] = $username; } else { echo '<p>Error: Invalid login attempt</p>'; } } if(isset($_SESSION['username'])){ echo '<p>Hello <b>', ($_SESSION['username']), '</b> you are logged in</p>', '<form method="post">', '<input type="submit" value="Logout"/>', '<input type="hidden" value="logout" name=...