Here we go to understand a solution to solve the white space error that cause corrupt output for the wordpress rss feed or any other rss feed or www document that need the very first character of the output is the character < of the xml document declaration and not white spaces (or something else: the str_replace() function can be modified to fit any needs).

Read the easy tricky way by axew3 to solve commons wordpress rss feed error problems in this page:

http://www.w3it.org/blog/wordpress-feed-output-error-solution-how-to/

In a previous article we see where the database class of Wordpress born and where you can find out the source code to create your own applications with a powerful database script routine. Now we discover where Wordpress take advantage about many Ajax features. (more…)

As wordpress user/coder i know something about how it has been coded and about his loop.

Many times we found something like this:

$wpdb->get_row

it is an instance of the wpdb class to execute a query to database.

The WordPress DB Class is coded inside the wordpress file:  wp-includes/wp-db.php. (more…)