Show Related Categories in Cat. view

what code are you finally using?

to prevent the output to be shown on page 2 etc, wrap the code into a conditional statement using is_paged() – https://codex.www.ads-software.com/Function_Reference/is_paged

example:

<?php if( !is_paged() ) : ?>
YOUR CODE
<?php endif; ?>

Hi
many thanks for your help.

when i display all the posts in category x, that i want to display a list of all the categories that all those posts use.

<?php
//cycle through posts and collect all category ids and tags ids used on these posts
$current_cat = get_query_var('cat');
$all_cats = array();
if (have_posts()) :
  while (have_posts()) : the_post();
    $cats = get_the_category();
    if ($cats) {
      foreach($cats as $cat) {
        if ($cat->term_id != $current_cat) {
          $all_cats[$cat->term_id] = $cat->term_id;
        }  //if ($cat->cat_ID
      } //foreach
    } // if ($cats)
  endwhile;
endif;
rewind_posts();
// now display all cats and tags we collected
$types[0] = 'category';
foreach ($types as $type) {
  if ($type == 'category') {
    if ($all_cats) {
      $term_ids = $all_cats; //implode(',', $all_cats);
      //wp_list_categories('include='.$term_ids.'&title_li=Categories');
    }
  } 

  $taxonomy = $type;
  $args = 'include='.implode(',', $term_ids);
  $terms = get_terms( $taxonomy, $args );
  if ($terms) {
    foreach($terms as $term) {
      if ($term->count > 0) {
        echo '<b>' . '<a href="' . esc_attr(get_term_link($term, $taxonomy)) . '" title="' . sprintf( __( "View all posts in %s" ), $term->name ) . '" ' . '>' . $term->name. '/ </b> ';
      }
    }
  }
 }
?>

hi
may i help you?
when i display all the posts in category x, that i want to display a list of all the categories that all those posts use.(not page per post)

when i display all the posts in category x, that i want to display a list of all the categories that all those posts use.(not page per post)