function sdac_remove_from_feed( $query ) {
	if ( $query->is_feed ) {
		$query->set( 'cat',-1 );
	}
        return $query;
}
add_filter( 'pre_get_posts','sdac_remove_from_feed' );

The code above will exclude all posts that are in the category with ID 1 from your feed. If you wanted to exclude everything from the search results – you would change one line:
$query->is_feed to $query->is_search

If you wanted to only show items from the category with ID 1 – you would just need to remove the “-” before the category number.

Note: You can include/exclude items tagged, etc by changing the ‘cat’ to whatever else you would normally use in the query.

You might think both would conditionally only display content on the home page (front page, page 1 of your blog) – but you actually need to use the following code to accomplish showing something ONLY on the front page of your paged blog:

<p>Show this text only on the home page</p>

So – if you want to easily show something on what I would consider the front page – use the code above to successfully achieve that. (This is particularly helpful if you have ads that run speficically on the home page and others that are ROS (run of site).

Further reading:

• documentation on conditional tags
• Bug Report on this issue

If it is too late though, you can download a file called “tools.php” that is in the do_not_upload file of the standard vBulletin folder. Upload that to the admincp folder along with the “install” folder and then go to your forum’s URL /admincp/tools.php. You will be prompted for your customer ID, and then you can reset your cookie settings.

Once you are done, make sure to delete the file and install folder. Login should once again work!

That bit of code will allow you to do something like this which will allow you to show the logged in user’s preferred user name (selected in the User preferences), and then a list of member only pages (private page parent is page ID 20 – I am showing all sub pages of the members-only pages marked as private). If the user is not logged in, they will get a Welcome visitor! greeting :

	<p>Welcome back </p>
	<p>Here is a list of private pages only viewable by Members:</p>
		<ul>
		</ul>
	Welcome, visitor!

You can make it as simple as a change in greeting for members and non-members, or put in specific logic like I did with showing the pages. The potential is limitless.

<form method="get" id="search form" action="/">
<div>
<input type="text" value="" name="s" id="s" />
<input type="hidden" value="22" name="cat" id="scat" />
</div>
</form>

You can see I added my hidden input field on the third line. When I add this in, it then adds onto the query used to search. Your search will go from something like http://www.sandboxdev.com/?s=WordPress to http://www.sandboxdev.com/?s=WordPress&cat=22 and will only return posts in the category ID you choose.

Here are the steps I recommend to really clean out a WordPress installation:

1. Make a backup of everything. You never know what you are going to get into – and a backup is very important incase things go bad.
2. Make a test installation. I always use a test server when I know I am going to make several changes. This way, jappler.com was not down while I was testing and cleaning up. With your backup files, import your database on the test server, and grab the latest version of WordPress (hopefully using subversion)
3. Remove old or unused plugin database tables. I then went into the WordPress database and removed (dropped) any tables that were created by any of my old or unused plugins that were still hanging around.
4. Weed out old, unused plugins. I went through my plugins and deleted any old or unused plugins. I had a few “I should really use this” plugins that were never used – and to tidy up – I deleted them before uploading them to the test server environment. Make sure to also remove any files/folders that old plugins might have used in the root folder and or wp-content.
5. Move your theme over. Upload the theme file over to the test server.
6. Move your uploads over/miscellaneous files. Upload the uploads folder (wp-content) so you will have all your old uploads.
7. Update WordPress. Run through the upgrade process (/wp-admin/upgrade.php).
8. Debug your plugins. Log in, create a test post to make sure you can write to the database without any errors. I ran into a few problems with this, so I deactivated my plugins and activated them one by one. I found I had a few plugins that were not compatible with WordPress 2.3, but there were updates available, so I updated my plugins and moved on.
9. Import Tags (if you have them). I used Ultimate Tag Warrior and WordPress has an import option for that (Manage > Import) for that.
10. Display your WordPress tags in your WordPress theme. Now that tagging is available within WordPress without any plugins, you can easily display tags by using: You can also use a tag cloud (see Codex documentation)
11. Make another backup. I always make another backup of my sites when I am happy with the end result – just incase something happened – I would not lose all my hard work.
12. Enjoy your updated installation. Hey – you did it! A clean, lean, updated web site. Nice work. Now go and enjoy it!

 and 

and in IE, when you hover over the flash object and a border appears, there is a fix available: SWFObject: Javascript Flash Player detection and embed script. I have used it with some flash sites and it works great.

• The header code to control the body ID (and to tell us what page we are on)
• The navigation code
• The CSS to control the highlight

For this example, I will use this web site as an example.

The header code

ID;
$parent = 1;
while($parent) {
$page_query = $wpdb->get_row("SELECT post_name, post_parent FROM $wpdb->posts WHERE ID = '$current_page'");
$parent = $current_page = $page_query->post_parent;
if(!$parent)
$parent_name = $page_query->post_name;
}
?>
<body id="">

The XHTML code (navigation)

<div>
<ul>
<li><a href="/index.php">Home</a></li>
<li><a href="/blog/">SDAC Blog</a></li>
<li><a href="/web_solutions/">Web Solutions</a></li>
<li><a href="/network_solutions/">Network Solutions</a></li><li><a href="/user_interface_solutions/">User Interface Solutions</a></li>
<li><a href="/custom_solutions/">Custom Solutions</a></li>
<li><a href="/search/">Search</a></li>
</ul>
</div>

The CSS code

#home #nav-home, #about_us #nav-home, #contactus #nav-home, #faqs #nav-home,
#disclaimer #nav-home, #search #nav-search,
#blog #nav-blog, #web_solutions #nav-websolutions, #network_solutions #nav-networksolutions,
#user_interface_solutions #nav-userinterfacesolutions,
#custom_solutions #nav-customsolutions, #tos #nav-home, #sitemap #nav-home {
	  background:url("images/tabs/active_tab_bg.gif") repeat-x;
      border-right:1px solid #676e78;
      }
#tabs li:hover, #tabs li:hover a {
	background: url("images/tabs/active_tab_bg.gif") repeat-x;
    color:#212933;
    }

General information
When you view the code for a page, you will notice that the header code will find out if the page viewed is infact a page. If it is a page, it gets the page parent (I use parent and child pages in my web site organization). The tabs are created with unique li IDs. So that a combination of #home (the body ID) and the #nav-home (li ID) will show as a highlighted tab. With this example, this case will only occur when we are on the home page because #home is a page (the home page) so the home tab will be highlighted. When we click on “SDAC Blog”, the body ID will then be #blog, so now the #blog #nav-blog combination will force the “SDAC Blog” tab to be highlighted. Take a look at the CSS to see where to define the “cases”.

Hopefully this took some of the mystery out of working with WordPress, navigation, and how to put everything together.

Error establishing a database connection

Solution: The most common solution is to look and make sure you have typed in the correct user name/password/database name in your wp-config.php file. How can you check? Log into cPanel or Plesk, or directly to mysqladmin. Make sure that the user has the correct privileges to the database and that the password is correct. If you are unsure about the password, you can always delete the user and re-add them (remember to give the newly created user the correct privileges). If you are still having an issue, and you have a high traffic blog/web site, call your web host and see if you are maxing out the server connections – you/they might need to adjust their Apache/MySQL settings or you might need to start using WP-Cache to help control the connection issues. More than likely – you just entered in your user name/password/database incorrectly. This is by far the most common issue I have seen so far.

The default theme appears instead of your chosen custom theme when making CSS changes.

Solution: This is a known issue and hopefully will be addressed soon. If this happens, log into the WordPress Admin and choose your custom theme under “Presentation”.

You are not able to edit your widgets’ content using Safari

Solution: Grab the widget content that you want and drop it below or above another widget content box in the Widgets area in the WordPress Admin. Once you move it, the edit option will appear. Edit the content, and drag it back to it’s original location.

$results=$wpdb->get_results("SELECT * FROM $wpdb->posts WHERE post_parent = $parentID and post_type = 'page' ORDER BY menu_order ASC");

to:

$results=$wpdb->get_results("SELECT * FROM $wpdb->posts WHERE post_parent = $parentID and post_type = 'page' and post_status='publish' ORDER BY menu_order ASC");

Now, only the pages you really want to order will appear in the menu.