Wordpress pagination

functions.php

<?php
/**
 * Pagination.
 */
function dfw_pagination() {
    global $wp_query;
    $total_pages = $wp_query->max_num_pages;

    if ($total_pages > 1) {
        $current_page = max( 1, get_query_var( 'paged' ) );

        $pagination = '<div class="page-nav">';
        $pagination .= paginate_links( array(
            'base' => get_pagenum_link(1) . '%_%',
            'format' => '/page/%#%',
            'current' => $current_page,
            'total' => $total_pages,
            'show_all' => false, // Show all items
            'end_size' => 1, // Total of items displayed for the last few pages
            'mid_size' => 2, // Total of items that will show along with the current page.
            'prev_text' => __( '&laquo; Anterior', 'dfwtheme' ),
            'next_text' => __( 'Próximo &raquo;',  'dfwtheme'),
        ));
        $pagination .= '</div>';

        // prevents duplicate bars in the middle of the url
        $html = str_replace( '//page/', '/page/', $pagination );

        echo $html;
    }
}
?>