<?php if (have_posts()) :
...пошел вывод рубрики с постами
else: ?>
404

<?php get_header(); ?>
   <main id="content">

<?php if (have_posts()) :

   $post = $posts[0];
   $not_paged = get_query_var('paged');
   $not_paged = ( empty($not_paged) ) ? true : false;

   ?>

   <header class="inform">
   <?php if (is_category()) : ?>
      <h1><?php _e( 'Category', 'basic' ); ?> &laquo;<?php single_cat_title(''); ?>&raquo;</h1>
      <?php if ( $not_paged ) echo '<div class="archive-desc">'. category_description() .'</div>'; ?>
   <?php elseif( is_tag() ) : ?>
      <h1><?php _e( 'Tag', 'basic' ); ?> &laquo;<?php single_tag_title(); ?>&raquo;</h1>
      <?php if ( $not_paged ) echo '<div class="archive-desc">'. tag_description() .'</div>'; ?>
   <?php elseif (is_day()) : ?>
      <h1><?php _e( 'Day archives:', 'basic' ); ?> <?php the_time('F jS, Y'); ?></h1>
   <?php elseif (is_month()) : ?>
      <h1><?php _e( 'Monthly archives:', 'basic' ); ?> <?php the_time('F, Y'); ?></h1>
   <?php elseif (is_year()) : ?>
      <h1><?php _e( 'Year archives:', 'basic' ); ?> <?php the_time('Y'); ?></h1>
   <?php elseif (is_author()) : ?>
      <h1><?php _e( 'Author archives', 'basic' ); ?></h1>
      <div class="archive-desc"><?php the_author_meta('description'); ?></div>
   <?php elseif (isset($_GET['paged']) && !empty($_GET['paged'])) : ?>
      <h1 class="arhivetitle"><?php _e( 'Archive', 'basic' ); ?></h1>
    <?php endif; ?>
   </header>

   <?php while (have_posts()) : the_post(); 

      get_template_part( 'content' ); 

   endwhile;

   the_posts_pagination( apply_filters( 'basic_archive_posts_pagination_args', array(
      'mid_size' => 2,
      'prev_text' => __( '&laquo; Prev', 'basic'),
      'next_text' => __( 'Next &raquo;', 'basic'),
   )) );


else: ?>
      
   <div class="post">
      <h1><?php _e( 'Posts not found', 'basic' ); ?></h1>
      <?php get_search_form(); ?>
    </div>
      
<?php endif; ?>

   </main> <!-- #content -->
<?php get_sidebar(); ?>
<?php get_footer(); ?>