Hi,
I'm trying to make a plugin that filters posts that appear on 2 categories...
For testing purposes I did this:
add_action('parse_request', 'dualcatsfilter' );
function dualcatsfilter( $cat1 = 14, $cat2 = 79 ){
global $wp;
$wp->set_query_var('category__and', array($cat1, $cat2));
}
But it doesn't work... I'm thinking that maybe I didn't understand how to use the set_query_var function.
Can anyone help me around?
Thanks