3, 'post__not_in' => array( $post->ID ), 'orderby' => 'rand', ); $post_categories = get_the_category( $post->ID ); if ( ! empty( $post_categories ) ) { $args['cat'] = $post_categories[0]->term_id; } $query = new WP_Query( $args ); if ( $query->have_posts() ) : ?>