xer0x

Thanks Renuplex! I’ve been googling all over for this. It surprises me that this functionality isn’t already built into a handy plugin like Search Unleashed.

I got your code working on my site with a couple tweaks. I’m posting them here just in case anyone else is looking for this too.

Thanks again,

global $wp_query;
$cats = $wp_query->get('cat');
if($cats) {
    $sql .= " LEFT JOIN {$wpdb->prefix}term_relationships ON {$wpdb->posts}.ID = {$wpdb->prefix}term_relationships.object_id ";
    $sql .= " JOIN {$wpdb->prefix}term_taxonomy ON {$wpdb->prefix}term_relationships.term_taxonomy_id = {$wpdb->prefix}term_taxonomy.term_taxonomy_id";
}
$sql .= ' WHERE 1=1 ';
if ($cats) $sql .= " AND {$wpdb->prefix}term_taxonomy.term_id IN ($cats) ";