Login logout session in php

In this login logout example in PHP we used 3 file

• login.php
• index.php
• logout.php

login_user.sql

CREATE TABLE `login_user` [
  `id` int[11] NOT NULL,
  `name` varchar[60] NOT NULL,
  `user_name` varchar[20] NOT NULL,
  `password` varchar[20] NOT NULL
] ENGINE=InnoDB DEFAULT CHARSET=latin1;

login.php