$current_post_categories, 'post__not_in' => array( $current_post_id ), 'posts_per_page' => 3, 'orderby' => 'rand' ); // Custom query to fetch related posts $related_query = new WP_Query( $args ); // Check if there are any related posts if ( $related_query->have_posts() ) : while ( $related_query->have_posts() ) : $related_query->the_post(); ?>