Sort posts alphabetically

Hi @prozaco

With this in your (child) theme’s functions.php the posts will be sorted alphabetically.

add_filter( 'related_posts_by_taxonomy', 'km_rpbt_orderby_title', 10, 4 );
function km_rpbt_orderby_title( $results, $post_id, $taxonomies, $args ) {

	usort( $results, 'km_rpbt_sort_by_title' );
	return $results;
}

function km_rpbt_sort_by_title( $a, $b ) {

	return strcasecmp( $a->post_title, $b->post_title );
}

btw:
consider creating a child theme instead of editing your theme directly – if you upgrade the theme all your modifications will be lost. Or create a plugin with the code above.