PHP 对用户登录信息 Cookie 进行验证

[php]代码库

<?php
unset($username);
if ($_COOKIE[\'login\']) {
    list($c_username,$cookie_hash) = split(\',\',$_COOKIE[\'login\']);
    if (md5($c_username.$secret_word) == $cookie_hash) {
        $username = $c_username;
    } else {
        print \"You have sent a bad cookie.\";
    }
}

if ($username) {
    print \"欢迎, $username.\";
} else {
    print \"欢迎, 游客.\";
}
?>
//该片段来自于http://yuncode.net