Using WordPress ‘is_paged()’ PHP function

The is_paged() WordPress PHP function determines whether the query is for a paged result and not for the first page.

Usage

if ( is_paged() ) {
  // Your custom code here
}

See WordPress Developer Resources: is_paged()

This code snippet will display a message only on paged results.

if ( is_paged() ) {
  echo '**You are viewing paged results.**';
}

This code snippet will display a navigation menu only on paged results.

if ( is_paged() ) {
  previous_posts_link('**Previous Page**');
  next_posts_link('**Next Page**');
}

This code snippet will apply a different post layout for paged results.

if ( is_paged() ) {
  get_template_part('content', 'paged');
} else {
  get_template_part('content', 'single');
}

This code snippet will modify the loop to display a different number of posts per page for paged results.

if ( is_paged() ) {
  $args = array(
    'posts_per_page' => 5,
  );
  query_posts($args);
}

This code snippet will display an advertisement only on paged results.

if ( is_paged() ) {
  echo '**Ad: Your ad content here.**';
}