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<?php

session_start();

//假設用戶登錄成功獲得了以下用戶數據

$userinfo = array(

    'uid'  => 10000,

    'name' => 'spark',

    'email' => '[email protected]',

    'sex'  => 'man',

    'age'  => '18'

);

header("content-type:text/html; charset=utf-8");

/* 將用戶信息保存到session中 */

$_SESSION['uid'] = $userinfo['uid'];

$_SESSION['name'] = $userinfo['name'];

$_SESSION['userinfo'] = $userinfo;

echo "welcome ".$_SESSION['name'] . '<br>';

//* 將用戶數據保存到cookie中的一個簡單方法 */

$secureKey = 'imooc'; //加密密鑰

$str = serialize($userinfo); //將用戶信息序列化

echo "用戶信息加密前：".$str;

$str = base64_encode(mcrypt_encrypt(MCRYPT_RIJNDAEL_256, $secureKey, $str, MCRYPT_MODE_ECB));

echo "用戶信息加密后：".$str;

//將加密后的用戶數據存儲到cookie中

setcookie('userinfo', $str);

//當需要使用時進行解密

$str = mcrypt_decrypt(MCRYPT_RIJNDAEL_256, $secureKey, base64_decode($str), MCRYPT_MODE_ECB);

$uinfo = unserialize($str);

echo "解密后的用戶信息：<br>";

var_dump($uinfo);