记一下TestLink遇到的连接数据方面的一个问题
今天发现登录TestLink总是不成功，前几天还正常的，很奇怪。提示用户名/密码错误之类的，而且其他人的帐号也同样不能登录。然而，我们都很清楚用户名密码是匹配的。解决问题步骤如下： 1. 试了一下，找回密码功能，发现它提示说我的用户名不存在。 2. 查看了
今天发现登录TestLink总是不成功，前几天还正常的，很奇怪。提示用户名/密码错误之类的，而且其他人的帐号也同样不能登录。然而，我们都很清楚用户名密码是匹配的。解决问题步骤如下：
1. 试了一下，找回密码功能，发现它提示说我的用户名不存在。
2. 查看了MySQL数据中users表，我的用户名是存在的啊。遂怀疑是TestLink连接数据方面的的问题。
3. 查看了 config_db.inc.php 配置文件，发现链接MySQL的用户名/密码/主机名都正常的。
4. logs/userlog3.log 和 log/userlog0.log 文件，发现里面有如下的错误：
Declaration of ADODB_mysql::MetaColumns() should be compatible with that of ADOConnection::MetaColumns() - in /home/testlink/third_party/adodb/drivers/adodb-mysql.inc.php - Line 21
这时TestLink使用的ADODB这个第三方库发生的问题，而且刚好是数据库有关的，所以感觉是今天遇到的问题所在。
看到网上有人曾反馈过这个问题，ADOdb与PHP5.2以上的一个兼容性问题，说是需要使用较新版本的ADOdb即可，所以从 http://adodb.sourceforge.net/#download 下载了最新的ADOdb库替换掉原来的即可。
果然，我是用了ADOdb 5.18 就没有上面的错误信息了，用户也可以正常登录了。
尽管问题解决了，有一点还是没想明白，TestLink都使用了2年了，为啥现在爆出了数据库连接层的问题，有问题应该一开始就不能用啊；最近我们似乎没升级过TestLink和PHP的版本。哎，暂时这样吧～
参考资料：
http://www.teamst.org/forum/viewtopic.php?f=11&t=2333
http://forums.phpfreaks.com/topic/181192-solved-php-openchat-doomed-to-blow-outabandoned/
Original article: 记一下TestLink遇到的连接数据方面的一个问题
©2014 笑遍世界. All Rights Reserved.
原文地址：记一下TestLink遇到的连接数据方面的一个问题, 感谢原作者分享。
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