php第二章

<?php
/**
 * Created by PhpStorm.
 * User: forr
 * Date: 15/9/16
 * Time: 下午10:41
 */
//cookie存放的位置为requestHeader中
//设置cookie,用于多个页面传输数据
setcookie(‘name‘,‘大头儿子‘);
//跳转到其他页面,通过get方式传值
header("Location:a.php?title=superman");

<?php
/**
 * Created by PhpStorm.
 * User: forr
 * Date: 15/9/16
 * Time: 下午10:42
 */
echo $_COOKIE[‘name‘];
echo ‘<br/>‘.$_GET[‘title‘];

<?php
/**
 * Created by PhpStorm.
 * User: forr
 * Date: 15/9/16
 * Time: 下午11:22
 */
//使用session多个页面访问数据
$_SESSION[‘theme‘] = ‘周杰伦‘;
//服务器把session清除
session_destroy();
header(‘Location:a.php‘);

<?php
/**
 * Created by PhpStorm.
 * User: forr
 * Date: 15/9/16
 * Time: 下午11:28
 */
session_start();
$f = empty($_SESSION[‘theme‘]);
if($f)
{
    echo $_SESSION[‘theme‘];
    echo session_id();
}
else
{
    echo ‘404找不到‘;
}