add pagination to wordpress

Sure! Here is a response:

1. Open your theme's functions.php file.
2. Add the following code to the functions.php file:

function custom_pagination() {
    global $wp_query;
    $big = 999999999;
    echo paginate_links(array(
        'base' => str_replace($big, '%#%', esc_url(get_pagenum_link($big))),
        'format' => '?paged=%#%',
        'current' => max(1, get_query_var('paged')),
        'total' => $wp_query->max_num_pages
    ));
}

1. Save the functions.php file.

2. In the template file where you want to display the pagination (e.g., archive.php, index.php), add the following code where you want the pagination to appear:

<?php custom_pagination(); ?>

1. Save the template file.