Theme developers can implement pagination using simple links or numbered navigation to guide users through content. The number of posts displayed per page can be adjusted under Settings > Reading in the WordPress dashboard.

WordPress provides built-in pagination functions like previous_post_link() and next_post_link(), which work only with the main query. For custom queries, pagination can be handled using WP_Query with the paged parameter:

$paged = get_query_var( 'paged' ) ? get_query_var( 'paged' ) : 1;

$args = array(
  'post_type'      => 'news',
  'posts_per_page' => 4,
  'paged'          => $paged,
);

$custom_query = new WP_Query( $args );

while ( $custom_query->have_posts() ) :
    $custom_query->the_post();
    echo the_title( '<p>', '</p>' );
endwhile;

if ( function_exists( 'pagination' ) ) {
    pagination( $custom_query->max_num_pages );
}

For static pages, use page instead of paged in WP_Query arguments. Here’s an example:

$paged = get_query_var( 'page' ) ? get_query_var( 'page' ) : 1;

$args = array(
  'post_type'      => 'page',
  'posts_per_page' => 4,
  'paged'          => $paged, // Use 'page' instead if needed
);

$custom_query = new WP_Query( $args );

while ( $custom_query->have_posts() ) :
    $custom_query->the_post();
    echo the_title( '<p>', '</p>' );
endwhile;

if ( function_exists( 'pagination' ) ) {
    pagination( $custom_query->max_num_pages );
}

Note: Use page instead of paged in get_query_var() and WP_Query when working with static pages.