phpQQ登录session['state']一直找不到求解,该如何处理

php QQ登录 session['state'] 一直找不到 求解
易联主机的虚拟空间（不知道跟这个有没有关系）

使用QQsdk php 做QQ登录
按照步骤设置config和session文件
结束只有一个





//session.php 代码


/**
* PHP SDK for QQ登录 OpenAPI
*
* @version 1.2
* @author connect@qq.com
* @copyright © 2011, Tencent Corporation. All rights reserved.
*/

/**
* @brief 设置session配置
*/

/**
* CREATE TABLE `tbl_session` (
* `session_id` varchar(255) binary NOT NULL default '',
* `session_expires` int(10) unsigned NOT NULL default '0',
* `session_data` text,
* PRIMARY KEY (`session_id`)
* ) ENGINE=MyISAM;
*/

class Session
{
//mysql的主机地址
const db_host = "localhost"; //需要第三方指定ip地址

//数据库用户名
const db_user = "ibrat"; //需要第三方指定自己的用户名

//数据库密码
const db_pwd = "ibrat"; //需要第三方指定自己的库据库密码

//数据库
const db_name = "ibrat"; //需要第三方指定数据库

//数据库表
const db_table = "ghb_session"; //需要第三方指定数据表

//mysql-handle
private $db_handle;

//session-lifetime
private $lifeTime;

function open($savePath, $sessName)
{
// get session-lifetime
$this->lifeTime = get_cfg_var("session.gc_maxlifetime");

// open database-connection
$db_handle = @mysql_connect(self::db_host, self::db_user, self::db_pwd);

$dbSel = @mysql_select_db(self::db_name, $db_handle);

// return success
if(!$db_handle || !$dbSel)
return false;

$this->db_handle = $db_handle;
return true;
}

function close()
{
$this->gc(ini_get('session.gc_maxlifetime'));
// close database-connection
return @mysql_close($this->db_handle);
}

function read($sessID)
{
// fetch session-data
$res = @mysql_query("SELECT session_data AS d FROM ".self::db_table."
WHERE session_id = '$sessID'
AND session_expires > ".time(), $this->db_handle);

// return data or an empty string at failure
if($row = @mysql_fetch_assoc($res))
return $row['d'];

return "";
}

function write($sessID, $sessData)
{
// new session-expire-time
$newExp = time() + $this->lifeTime;

// is a session with this id in the database?
$res = @mysql_query("SELECT * FROM ".self::db_table."
WHERE session_id = '$sessID'", $this->db_handle);

// if yes,
if(@mysql_num_rows($res))
{
// ...update session-data
@mysql_query("UPDATE ".self::db_table."
SET session_expires = '$newExp',
session_data = '$sessData'
WHERE session_id = '$sessID'", $this->db_handle);

// if something happened, return true
if(@mysql_affected_rows($this->db_handle))
return true;
}
else // if no session-data was found,