php密码登录源码

php 'password' ]; if ($_SERVER['REQUEST_METHOD'] === 'POST') { $username = $_POST['username']; $password = $_POST['password']; if (isset($users[$username]) && $users[$username] === $password) { $_SESSION['username'] = $username; echo '登录成功！'; } else { echo '用户名或密码错误！'; } } ?>