Shop

function keep_query_strings_on_pagination( $link ) {
if ( is_shop() || is_product_category() || is_product_tag() ) {
// Keep existing query strings
$query_string = $_SERVER[‘QUERY_STRING’];
if ( $query_string ) {
$link = add_query_arg( $query_string, $link );
}
}
return $link;
}
add_filter( ‘paginate_links’, ‘keep_query_strings_on_pagination’ );