Sorting WordPress Category Archives

By default WordPress category archives are sorted by date.  This is fine when you’re publishing a blog but if you’re using WP for other reasons you might want to adjust the way the archives are sorted.  This is done rather easily by creating a new filter in your functions.php file like this:

//filter to alphabetically sort category archives

And then creating a new sort function like this:

function sort_category_archive_alphabetically($orderby )
 if (is_category())
 return "post_title ASC";
 return $orderby;

In this example I’m alphabetically sorting all categories.  You could restrict it to a specific category by changing the is_category() call to include a category ID (is_category(8)) or by including a category name (is_category(‘Your Category Name’)).

I’m doing a simple sort by post_title here but more complex sorts are possible.  For example, the WordPress API gives a more complex example that explains how to do a LEFT JOIN in the SQL to select posts and sort by values in tables other than the WP_POSTS table.

This entry was posted in php, WordPress on by .

About markn

Mark is the owner and founder of Timesheets MTS Software, an mISV that develops and markets employee timesheet and time clock software. He's also a mechanical engineer, father of four, and a lifelong lover of gadgets.