I found your post interesting and have implemented your code, but it does not seem to work on my version of wordpress.

The problem I am trying to solve is showing blank screen when invalid URL is entered.
I am using permalinks and here is what i would like:

I have a site: http://www.mysite.com/myblog/

If I type in address bar the following:

http://www.mysite.com/myblog/somecrap

This returns blank page.

I have found out that the SQL query is built and posts table read with “somecrap” as post name.

The number of affected rows returned is zero, but in classes.php the error is cleared (there is a comment in the code saying that as there is ’something’ in the url, they should clear the error) and hence the above code never executes.

What I would expect to happen is that when no posts is returned as a result of this query, I am shown “post not found” or similar message.

I do not really know php and even less on how in wordpress all hangs together, and am a bit concerned if I put some changes (such as condition on number of rows returned == 0 instead of checking for error, then that I will damage some other bits of wordpress such as posting, searching categories etc.

Do you have any idea what I could do?

Many thanks,

Sandra