This article lists common questions for advanced WordPress users, and refers you to articles that contain the answers. There is also a list of resources at Advanced Topics, which might be of help, and a list of resources specifically for Plugin, Theme, and Core WordPress developers at Developer Documentation.
See Alphabetizing Posts.
See WordPress as CMS
Many users can register and participate on a WordPress blog. You can even assign them different privileges ("User Levels"), so there can be "administrators" and simple "contributors". For more information see User Levels.
To return clean URIs for search results in WordPress from the search form (www.example.com/search/searchterms instead of www.example.com/?s=searchterms)
First create a file called search.php which contains:
<?php header('Location: http://www.example.com/search/' . $_GET['s']); ?>
Put that file in the root of your WordPress install and alter the action for the search form to this:
action="<?php bloginfo('url'); ?>/search.php"
If you want to have your server display .phps files in color like this updatelinkroll.phps at carthik.net, add the following line to your .htaccess file in the server root directory. This assumes your server is Apache and that you have the ability to add types in .htaccess
AddType application/x-httpd-php-source .phps
Use the following SQL commands to change the post_status for every post in your wp_posts database table. This command will do the bulk change and exclude Pages from being changed--remember to replace STATUS with draft, private, or publish.
UPDATE wp_posts SET post_status = 'STATUS' WHERE post_status != 'static';
If you have multiple authors and only want to do a bulk edit of just one author's post, you can use the following command, but remember to replace NUMBER with the correct ID number of the post_author.
UPDATE wp_posts SET post_status='STATUS' WHERE post_author='NUMBER';
This solution assumes creating a Page causes a link to be put in your header.
Install and activate the plugin called Redirectifiy. Create a Page called Wiki and save that Page. Then do Manage->Pages and edit that Page and add the Custom Field with a 'key' of redirect and URL to your Wiki in the value. (That last edit of page is necessary to overcome a bug where you can't assign Custom Fields to a new page, but you can do it when you edit the page.)