<?php
session_start();
//假設(shè)用戶(hù)登錄成功獲得了以下用戶(hù)數(shù)據(jù)
$userinfo = array(
??? 'uid'? => 10000,
??? 'name' => 'spark',
??? 'email' => 'spark@imooc.com',
??? 'sex'? => 'man',
??? 'age'? => '18'
);
header("content-type:text/html; charset=utf-8");

/* 將用戶(hù)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(hù)數(shù)據(jù)保存到cookie中的一個(gè)簡(jiǎn)單方法 */
$secureKey = 'imooc'; //加密密鑰
$str = serialize($userinfo); //將用戶(hù)信息序列化
echo "用戶(hù)信息加密前：".$str;
$str = base64_encode(mcrypt_encrypt(MCRYPT_RIJNDAEL_256, $secureKey, $str, MCRYPT_MODE_ECB));
echo "用戶(hù)信息加密后：".$str;
//將加密后的用戶(hù)數(shù)據(jù)存儲(chǔ)到cookie中
setcookie('userinfo', $str);

//當(dāng)需要使用時(shí)進(jìn)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(hù)信息：<br>";

var_dump($uinfo);

welcome spark
用戶(hù)信息加密前：a:5:{s:3:"uid";i:10000;s:4:"name";s:5:"spark";s:5:"email";s:15:"spark@imooc.com";s:3:"sex";s:3:"man";s:3:"age";s:2:"18";}用戶(hù)信息加密后：N6fsF+gD21rkTnAmIJeI/Imbzlze9Sz2tFD/3fxoUTMNFJSq4fg+jjHaGTrpkZTWWBPHHt4IJ2V7rJCfnA3wiicjRgffYVPqNcMq26o+NJ5rdiOwYkuWzdVNm+9FQTyimlQDl6zsKNhj1nRKkTnF2Cr7NcMyXejh6+ZtG0Y0Yek=
Warning: Cannot modify header information - headers already sent by (output started at /573/7sqw/index.php:17) in /573/7sqw/index.php on line 26
解密后的用戶(hù)信息：
array(5) {
["uid"]=>
int(10000)
["name"]=>
string(5) "spark"
["email"]=>
string(15) "spark@imooc.com"
["sex"]=>
string(3) "man"
["age"]=>
string(2) "18"
}

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