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godot-question2answer/Q2A-README.md
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Question2Answer
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[![Build Status](https://travis-ci.org/q2a/question2answer.png?branch=dev)](https://travis-ci.org/q2a/question2answer/branches)
[Question2Answer][Q2A] (Q2A) is a popular free open source Q&A platform for PHP/MySQL, used by over 20,898 [sites] in 40 languages.
Q2A is highly customisable with many awesome features:
- Asking and answering questions (duh!)
- Voting, comments, best answer selection, follow-on and closed questions.
- Complete user management including points-based reputation management.
- Create experts, editors, moderators and admins.
- Fast integrated search engine, plus checking for similar questions when asking.
- Categories (up to 4 levels deep) and/or tagging.
- Easy styling with CSS themes.
- Supports translation into any language.
- Custom sidebar, widgets, pages and links.
- SEO features such as neat URLs, microformats and XML Sitemaps.
- RSS, email notifications and personal news feeds.
- User avatars (or Gravatar) and custom fields.
- Private messages and public wall posts.
- Log in via Facebook or others (using plugins).
- Out-of-the-box WordPress 3+ integration.
- Out-of-the-box Joomla! 3.0+ integration (in conjunction with a Joomla! extension).
- Custom single sign-on support for other sites.
- PHP/MySQL scalable to millions of users and posts.
- Safe from XSS, CSRF and SQL injection attacks.
- Beat spam with captchas, rate-limiting, moderation and/or flagging.
- Block users, IP addresses, and censor words
Q2A also features an extensive plugin system:
- Modify the HTML output for a page with *layers*.
- Add custom pages to a Q2A site with *page modules*.
- Add extra content in various places with *widget modules*.
- Allow login via an external identity provider such as Facebook with *login modules*.
- Integrate WYSIWYG or other text editors with *editor/viewer modules*.
- Do something when certain actions take place with *event modules*.
- Validate and/or modify many types of user input with *filter modules*.
- Implement a custom search engine with *search modules*.
- Add extra spam protection with *captcha modules*.
- Extend many core Q2A functions using *function overrides*.
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As of version 1.6.3, all development is taking place through GitHub. The collaborative development process is being managed by [Scott Vivian][1]. (Note that official releases are still distributed via the [Q2A website][Q2A].)
Please read the [contributing page][2] for more information on how to get involved.
Thanks and enjoy!
Gideon
[Q2A]: http://www.question2answer.org/
[1]: http://www.question2answer.org/qa/user/Scott
[2]: https://github.com/q2a/question2answer/blob/master/CONTRIBUTING.md
[sites]: http://www.question2answer.org/sites.php