IIS7，IIS7.5在高版本IE下丢失session，每次刷新页面，都会生成新的sessionID

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测试脚本为php，IE版本为ie9，其它内核浏览器ff,chrome,safari下都没有这个问题。
发现这个问题的时候，是做了一个登录页，使用$_SESSION来判断，ie就是登不上去，其它浏览器没问题。

后来测试了一下print session_id();ie下每次刷新页面的值都不一样，打开d:\tmp\session（这是php.ini里面设置的session存储位置），每次刷新增加一个session文件，当然这在其它浏览器下也不存在。

后来嘛，临时做了个解决方案，就是在php页面里设置一个cookie

<code>session_start();setcookie('PHPSESSID',session_id());</code>

算是临时解决了，但是……蛋还是继续的疼下去了，服务器（win2008 x86 iis7 fastcgi php5.2.17nts）上放了一个drupal，经常有人反应登陆不了，不用猜，肯定是用IE登不上，这事烦恼的我啊，我可不想去改drupal… 反正几个月以来，都在找答案。

现在，答案已经没那么重要了，只希望有解决办法，请各位走过路过的朋友们，给点您的经验，帮帮我这迷途的羔羊。。

顺便提一下，在寻找答案的路上，找到了一个和我一样问题的人，但是解决方案我没搞明白，因为可以肯定的是，我的域名没有下划线。。http://forums.iis.net/t/1150171.aspx请看得明白这个帖子的朋友，也给指点一下。

附上抓包数据(隐去了域名)：
IE下：

<code>GET /index.php HTTP/1.1Accept: text/html, application/xhtml+xml, */*Accept-Language: zh-CNUser-Agent: Mozilla/5.0 (compatible; MSIE 9.0; Windows NT 6.1; Trident/5.0)Accept-Encoding: gzip, deflateHost: ***.***.cnConnection: Keep-AliveCookie: has_js=1HTTP/1.1 200 OKCache-Control: public, max-age=600Content-Type: text/html; charset=utf-8Content-Language: zh-hansExpires: Sun, 19 Nov 1978 05:00:00 GMTLast-Modified: Mon, 12 Aug 2013 05:54:19 +0000ETag: "1376286859-0"Vary: CookieServer: Microsoft-IIS/7.0X-Powered-By: PHP/5.2.17X-Drupal-Cache: MISSX-Generator: Drupal 7 (http://drupal.org)X-Powered-By: ASP.NETDate: Mon, 12 Aug 2013 05:54:37 GMTConnection: keep-aliveContent-Length: 9829POST /?q=front-page&destination=front-page HTTP/1.1Accept: text/html, application/xhtml+xml, */*Referer: http://***.***.cn/index.phpAccept-Language: zh-CNUser-Agent: Mozilla/5.0 (compatible; MSIE 9.0; Windows NT 6.1; Trident/5.0)Content-Type: application/x-www-form-urlencodedAccept-Encoding: gzip, deflateHost: ***.***.cnContent-Length: 129Connection: Keep-AliveCache-Control: no-cacheCookie: has_js=1HTTP/1.1 302 RedirectCache-Control: no-cache, must-revalidate, post-check=0, pre-check=0Content-Type: text/html; charset=UTF-8Expires: Sun, 19 Nov 1978 05:00:00 GMTLast-Modified: Mon, 12 Aug 2013 06:02:32 +0000ETag: "1376287352"Location: http://***.***.cn/?q=front-pageServer: Microsoft-IIS/7.0X-Powered-By: PHP/5.2.17X-Drupal-Cache: MISSSet-Cookie: SESS6a2ee0acf5e5bd0d9cea678a1bb7540f=S2CFFREDq47DBALxDLxlCVzhqnI98MMm4yHPY_k7dho; expires=Wed, 04-Sep-2013 09:35:57 GMT; path=D:/tmp/cook; domain=.***.***.cn; HttpOnlyX-Powered-By: ASP.NETDate: Mon, 12 Aug 2013 06:02:37 GMTConnection: keep-aliveContent-Length: 155</code>

firefox下：

<code>GET /index.php HTTP/1.1Host: ***.***.cnUser-Agent: Mozilla/5.0 (Windows NT 6.1; rv:22.0) Gecko/20100101 Firefox/22.0Accept: text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8Accept-Language: zh-cn,zh;q=0.8,en-us;q=0.5,en;q=0.3Accept-Encoding: gzip, deflateCookie: Drupal.toolbar.collapsed=0; has_js=1Connection: keep-aliveIf-Modified-Since: Mon, 12 Aug 2013 05:56:10 +0000If-None-Match: "1376286970"HTTP/1.1 200 OKCache-Control: no-cache, must-revalidate, post-check=0, pre-check=0Content-Type: text/html; charset=utf-8Content-Language: zh-hansExpires: Sun, 19 Nov 1978 05:00:00 GMTLast-Modified: Mon, 12 Aug 2013 05:56:51 +0000ETag: "1376287011"Server: Microsoft-IIS/7.0X-Powered-By: PHP/5.2.17X-Generator: Drupal 7 (http://drupal.org)X-Powered-By: ASP.NETDate: Mon, 12 Aug 2013 05:56:56 GMTConnection: keep-aliveContent-Length: 18842POST /?q=front-page&destination=front-page HTTP/1.1Host: ***.***.cnUser-Agent: Mozilla/5.0 (Windows NT 6.1; rv:22.0) Gecko/20100101 Firefox/22.0Accept: text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8Accept-Language: zh-cn,zh;q=0.8,en-us;q=0.5,en;q=0.3Accept-Encoding: gzip, deflateReferer<strong>（本文来源gaodai#ma#com搞@@代~&码网</strong><pre>搞代gaodaima码

: http://***.***.cn/Cookie: Drupal.toolbar.collapsed=0; has_js=1Connection: keep-aliveContent-Type: application/x-www-form-urlencodedContent-Length: 129HTTP/1.1 302 RedirectCache-Control: no-cache, must-revalidate, post-check=0, pre-check=0Content-Type: text/html; charset=UTF-8Expires: Sun, 19 Nov 1978 05:00:00 GMTLast-Modified: Mon, 12 Aug 2013 05:59:42 +0000ETag: “1376287182”Location: http://***.***.cn/?q=front-pageServer: Microsoft-IIS/7.0X-Powered-By: PHP/5.2.17X-Drupal-Cache: MISSSet-Cookie: SESS6a2ee0acf5e5bd0d9cea678a1bb7540f=DjNRVBdGXEVPumZnszKG9U8bAP0dHqx5wp8jFhJV81U; expires=Wed, 04-Sep-2013 09:33:07 GMT; path=D:/tmp/cook; domain=.***.***.cn; HttpOnlyX-Powered-By: ASP.NETDate: Mon, 12 Aug 2013 05:59:47 GMTConnection: keep-aliveContent-Length: 155

回复内容：

后来嘛，临时做了个解决方案，就是在php页面里设置一个cookie

<code>session_start();setcookie('PHPSESSID',session_id());</code>

现在，答案已经没那么重要了，只希望有解决办法，请各位走过路过的朋友们，给点您的经验，帮帮我这迷途的羔羊。。

附上抓包数据(隐去了域名)：
IE下：

<code>GET /index.php HTTP/1.1Accept: text/html, application/xhtml+xml, */*Accept-Language: zh-CNUser-Agent: Mozilla/5.0 (compatible; MSIE 9.0; Windows NT 6.1; Trident/5.0)Accept-Encoding: gzip, deflateHost: ***.***.cnConnection: Keep-AliveCookie: has_js=1HTTP/1.1 200 OKCache-Control: public, max-age=600Content-Type: text/html; charset=utf-8Content-Language: zh-hansExpires: Sun, 19 Nov 1978 05:00:00 GMTLast-Modified: Mon, 12 Aug 2013 05:54:19 +0000ETag: "1376286859-0"Vary: CookieServer: Microsoft-IIS/7.0X-Powered-By: PHP/5.2.17X-Drupal-Cache: MISSX-Generator: Drupal 7 (http://drupal.org)X-Powered-By: ASP.NETDate: Mon, 12 Aug 2013 05:54:37 GMTConnection: keep-aliveContent-Length: 9829POST /?q=front-page&destination=front-page HTTP/1.1Accept: text/html, application/xhtml+xml, */*Referer: http://***.***.cn/index.phpAccept-Language: zh-CNUser-Agent: Mozilla/5.0 (compatible; MSIE 9.0; Windows NT 6.1; Trident/5.0)Content-Type: application/x-www-form-urlencodedAccept-Encoding: gzip, deflateHost: ***.***.cnContent-Length: 129Connection: Keep-AliveCache-Control: no-cacheCookie: has_js=1HTTP/1.1 302 RedirectCache-Control: no-cache, must-revalidate, post-check=0, pre-check=0Content-Type: text/html; charset=UTF-8Expires: Sun, 19 Nov 1978 05:00:00 GMTLast-Modified: Mon, 12 Aug 2013 06:02:32 +0000ETag: "1376287352"Location: http://***.***.cn/?q=front-pageServer: Microsoft-IIS/7.0X-Powered-By: PHP/5.2.17X-Drupal-Cache: MISSSet-Cookie: SESS6a2ee0acf5e5bd0d9cea678a1bb7540f=S2CFFREDq47DBALxDLxlCVzhqnI98MMm4yHPY_k7dho; expires=Wed, 04-Sep-2013 09:35:57 GMT; path=D:/tmp/cook; domain=.***.***.cn; HttpOnlyX-Powered-By: ASP.NETDate: Mon, 12 Aug 2013 06:02:37 GMTConnection: keep-aliveContent-Length: 155</code>

firefox下：

<code>GET /index.php HTTP/1.1Host: ***.***.cnUser-Agent: Mozilla/5.0 (Windows NT 6.1; rv:22.0) Gecko/20100101 Firefox/22.0Accept: text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8Accept-Language: zh-cn,zh;q=0.8,en-us;q=0.5,en;q=0.3Accept-Encoding: gzip, deflateCookie: Drupal.toolbar.collapsed=0; has_js=1Connection: keep-aliveIf-Modified-Since: Mon, 12 Aug 2013 05:56:10 +0000If-None-Match: "1376286970"HTTP/1.1 200 OKCache-Control: no-cache, must-revalidate, post-check=0, pre-check=0Content-Type: text/html; charset=utf-8Content-Language: zh-hansExpires: Sun, 19 Nov 1978 05:00:00 GMTLast-Modified: Mon, 12 Aug 2013 05:56:51 +0000ETag: "1376287011"Server: Microsoft-IIS/7.0X-Powered-By: PHP/5.2.17X-Generator: Drupal 7 (http://drupal.org)X-Powered-By: ASP.NETDate: Mon, 12 Aug 2013 05:56:56 GMTConnection: keep-aliveContent-Length: 18842POST /?q=front-page&destination=front-page HTTP/1.1Host: ***.***.cnUser-Agent: Mozilla/5.0 (Windows NT 6.1; rv:22.0) Gecko/20100101 Firefox/22.0Accept: text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8Accept-Language: zh-cn,zh;q=0.8,en-us;q=0.5,en;q=0.3Accept-Encoding: gzip, deflateReferer: http://***.***.cn/Cookie: Drupal.toolbar.collapsed=0; has_js=1Connection: keep-aliveContent-Type: application/x-www-form-urlencodedContent-Length: 129HTTP/1.1 302 RedirectCache-Control: no-cache, must-revalidate, post-check=0, pre-check=0Content-Type: text/html; charset=UTF-8Expires: Sun, 19 Nov 1978 05:00:00 GMTLast-Modified: Mon, 12 Aug 2013 05:59:42 +0000ETag: "1376287182"Location: http://***.***.cn/?q=front-pageServer: Microsoft-IIS/7.0X-Powered-By: PHP/5.2.17X-Drupal-Cache: MISSSet-Cookie: SESS6a2ee0acf5e5bd0d9cea678a1bb7540f=DjNRVBdGXEVPumZnszKG9U8bAP0dHqx5wp8jFhJV81U; expires=Wed, 04-Sep-2013 09:33:07 GMT; path=D:/tmp/cook; domain=.***.***.cn; HttpOnlyX-Powered-By: ASP.NETDate: Mon, 12 Aug 2013 05:59:47 GMTConnection: keep-aliveContent-Length: 155</code>

自己给自己结贴，终于发现问题出在哪里了，这真的是我的错。
因为我把php.ini里面的一个变量：session.cookie_path的意思理解错了，填成d:\tmp，所以大家都没法登陆进去。现在改成空，已经正常了。

补充一下：
session.cookie_path 是指 session 生效的网站域;
session.save_path 是指存储 session 临时文件的路径。

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转载请注明原文链接：IIS7，IIS7.5在高版本IE下丢失session，每次刷新页面，都会生成新的sessionID

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