設置cookie以保持用戶登錄六個月

Question

以下是我的登錄PHP代碼。如何設置cookie以使瀏覽器保持用戶登錄6個月，即使他們關閉了瀏覽器？

if (!isLoggedIn()) 
{ 
    // user is not logged in. 
    if (isset($_POST['cmdlogin'])) 
    { 
     // retrieve the username and password sent from login form & check the login. 
     if (checkLogin($_POST['username'], $_POST['password'])) 
     { 
      show_userbox(); 

Answer 1

// set cookie 
// setcookie(name,value,expire); 

$expire = 6*30*24*3600; 
setcookie('username',_POST['username'], $expire); 
setcookie('password',_POST['password'],$expire); 

// get cookie 
$_COOKIE['username']; 
$_COOKIE['password'];