WordPress Version: 6.2
/**
* Retrieves the previous posts page link.
*
* Will only return string, if not on a single page or post.
*
* Backported to 2.0.10 from 2.1.3.
*
* @since 2.0.10
*
* @global int $paged
*
* @return string|void The link for the previous posts page.
*/
function get_previous_posts_page_link()
{
global $paged;
if (!is_single()) {
$previous_page = (int) $paged - 1;
if ($previous_page < 1) {
$previous_page = 1;
}
return get_pagenum_link($previous_page);
}
}