I believe that phpMyFAQ is the most useful KB I have seen so far ( from open-source ). It is simple, straight-forward KB software, is it PHP => can be easily installed on any server and can be customized if you know a bit of php. In addition it is made simple enough but with correct priorities and logic. I suggest to install it and play with it, I did and I decided to stay with this KB.
Based on my personal experience with this knowledge base software, I would also like to join 'Julien H.' in suggesting PHPKB from http://www.knowledgebase-script.com
Personally I believe its one of the best. Many features, continously developed, excellent support & the GUI is just simple & great.
Here comes another vote in favor of PHPKB knowledge base software. We came to know about PHPKB from this post on StackOverflow and bought it as recommended by Julien and Ricardo. I am glad to inform that it was a right decision. Although we had to get certain features customized according to our needs but their support team exceeded our expectations. So, I just thought of sharing the news here. We are fully satisfied with PHPKB knowledge base software.
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众多 wiki 之一怎么样？
肯尼：我用过 FlexWiki 和 FlexWiki。 ScrewTurn（废弃）。
其他使用 RepPower 编辑我的帖子的人添加了此内容。
维基百科由 MediaWiki 提供支持。
How about one of the many wikis?
Kenny: I've used FlexWiki & ScrewTurn (abandoned).
someone else with RepPower to edit my post added this.
Wikipedia is powered by MediaWiki.
我使用过 phpMyFAQ 并发现它非常好。
I have used phpMyFAQ and found it to be very good.
除了 Kenny 提到的 MediaWiki 之外，您还可以查看 MoinMoin。
在 MediaWiki 和 MoinMoin 之间进行选择可能有点困难。 以下是一些需要考虑的要点：
MediaWiki
优点：
相当容易设置。
缺点：
为维基百科单独制作。 因此，定制您喜欢的方式可能会有点麻烦。
MoinMoin
优点：
大量可用的插件和第三方模块。
缺点：
安装可能很痛苦。
还有大量其他可用的 wiki，但这些是我会考虑的主要两个。
In addition to MediaWiki that was mentioned by Kenny, you might also look at MoinMoin.
Choosing between MediaWiki and MoinMoin can be a bit tough. Here are some points to consider:
MediaWiki
Pros:
Fairly easy to set up.
Cons:
Made soley for wikipedia. Thus it can be a bit of a pain to customize how you like it.
MoinMoin
Pros:
Huge amount of plugins and third party modules available.
Cons:
Can be a pain to install.
There are a huge amount of other wikis available, but those are the main two I would consider.
由于我没有足够的声誉点来评论 Bruno Shine 的答案，因此我将添加此注释作为新答案。
KBPublisher 2.0 仍然可以在 Sourceforge 上使用： http://sourceforge.net/projects/kbpublisher/
该项目已经很多年没有更新了。 我从 v1.9 起就一直在运行它，而且运行得很好。
Since I don't have enough reputation points to comment on Bruno Shine's answer, I'll add this note as a new answer.
KBPublisher 2.0 is still available on Sourceforge: http://sourceforge.net/projects/kbpublisher/
The project hasn't been updated for years. I've been running it since v1.9 or something, and it works fine.
我相信 phpMyFAQ 是迄今为止我见过的最有用的知识库（来自开源）。
这是一个简单、直接的知识库软件，是不是PHP=> 可以轻松安装在任何服务器上，如果您了解一点 php，则可以进行自定义。 此外，它做得足够简单，但具有正确的优先级和逻辑。 我建议安装它并使用它，我这样做了，并且决定继续使用此知识库。
I believe that phpMyFAQ is the most useful KB I have seen so far ( from open-source ).
It is simple, straight-forward KB software, is it PHP => can be easily installed on any server and can be customized if you know a bit of php. In addition it is made simple enough but with correct priorities and logic. I suggest to install it and play with it, I did and I decided to stay with this KB.
另外，请考虑GForge。
Also, consider GForge.
根据我个人使用此知识库软件的经验，我也想加入“Julien H.” 在建议来自 http://www.knowledgebase-script.com 的 PHPKB 时，
我个人认为它是最好的之一。 许多功能，不断开发，优秀的支持和支持 GUI很简单& 伟大的。
Based on my personal experience with this knowledge base software, I would also like to join 'Julien H.' in suggesting PHPKB from http://www.knowledgebase-script.com
Personally I believe its one of the best. Many features, continously developed, excellent support & the GUI is just simple & great.
这是对 PHPKB 知识库软件的又一次投票。 我们是从 StackOverflow 上的这篇文章了解到 PHPKB 的，并根据 Julien 和 Ricardo 的推荐购买了它。 我很高兴地告诉大家，这是一个正确的决定。 尽管我们必须根据我们的需求定制某些功能，但他们的支持团队超出了我们的预期。 所以，我只是想在这里分享这个消息。 我们对 PHPKB 知识库软件非常满意。
Here comes another vote in favor of PHPKB knowledge base software. We came to know about PHPKB from this post on StackOverflow and bought it as recommended by Julien and Ricardo. I am glad to inform that it was a right decision. Although we had to get certain features customized according to our needs but their support team exceeded our expectations. So, I just thought of sharing the news here. We are fully satisfied with PHPKB knowledge base software.
我听说过 RTM（RT 常见问题解答管理器）。 然而，从未使用过它。
I heard of RTM (The RT FAQ Manager). Never used it, however.