Session control Cookie Session

Cookie

Setcookie (name, value, expiration time, valid path, valid domain, security );

setcookie(‘username‘,‘zhangshuo‘,time()+3600,‘/‘);

Exit COOKIE:

setcookie(‘username‘,null,-3600,‘/‘);

<?php
setcookie(‘username‘,‘zhangshuo‘,time()+3600,‘/‘);

<?php
header("content-type:text/html;charset=utf-8");
setcookie(‘username‘,null,-3600,‘/‘);

Setcookie ('userpwd', null,-3600 ,'/');

Echo'<SCRIPT type = "text/JavaScript"> alert ("exited successfully! "); Window. Location =" login. php "; </SCRIPT> ';


session

Enable session control

session_start();
$_SESSION[‘username‘] = ‘wangyufeng‘;

Exit session:

// 1. Enable session control.
Session_start ();


$ _ Session ['user'] = NULL;

// 2. Determine whether the cookie ['phpsessid'] exists. If so, destroy the cookie.
If(!Empty($ _ Cookie [session_name ()]) {
Setcookie (session_name (), null,-3600 ,'/');
}
// 3. Call the system to destroy the session function.
Session_destroy ();

Session control Cookie Session