The Core pagination

function the_core_paging_navigation( $wp_query = null ) {
        if ( ! $wp_query ) {
            $wp_query = $GLOBALS['wp_query'];
        }

        // Don't print empty markup if there's only one page.
        if ( $wp_query->max_num_pages < 2 ) {
            return;
        }

        $paged        = get_query_var( 'paged' ) ? intval( get_query_var( 'paged' ) ) : 1;
        $pagenum_link = html_entity_decode( get_pagenum_link() );
        $query_args   = array();
        $url_parts    = explode( '?', $pagenum_link );

        if ( isset( $url_parts[1] ) ) {
            wp_parse_str( $url_parts[1], $query_args );
        }

        $pagenum_link = remove_query_arg( array_keys( $query_args ), $pagenum_link );
        $pagenum_link = trailingslashit( $pagenum_link ) . '%_%';

        $format = $GLOBALS['wp_rewrite']->using_index_permalinks() && ! strpos( $pagenum_link, 'index.php' ) ? 'index.php/' : '';
        $format .= $GLOBALS['wp_rewrite']->using_permalinks() ? user_trailingslashit( 'page/%#%', 'paged' ) : '?paged=%#%';

        $the_core_pagination_type = function_exists('fw_get_db_settings_option') ? fw_get_db_settings_option('blog_pagination', 'paging-navigation-type-1') : 'paging-navigation-type-1';
        if( $the_core_pagination_type == 'paging-navigation-type-2' ) {
            $prev_text = esc_html__( 'Prev Page', 'the-core' );
            $next_text = esc_html__( 'Next Page', 'the-core' );
            $prev_icon = '<i>&larr;</i>';
            $next_icon = '<i>&rarr;</i>';
        }
        else {
            $prev_text = esc_html__( 'Newer', 'the-core' );
            $next_text = esc_html__( 'Older', 'the-core' );
            $prev_icon = '<i class="fa fa-angle-left"></i>';
            $next_icon = '<i class="fa fa-angle-right"></i>';
        }

        // Set up paginated links.
        $links = paginate_links( array(
            'base'      => $pagenum_link,
            'format'    => $format,
            'total'     => $wp_query->max_num_pages,
            'current'   => $paged,
            'mid_size'  => 1,
            'type'      => 'array',
            'add_args'  => array_map( 'urlencode', $query_args ),
            'prev_text' => $prev_icon.'<strong>' . $prev_text . '</strong>',
            'next_text' => '<strong>' . $next_text . '</strong>'.$next_icon,
        ) );

        if ( $links ) : ?>
            <nav class="navigation paging-navigation <?php echo esc_attr($the_core_pagination_type); ?>" role="navigation">
                <div class="pagination loop-pagination">
                    <?php
                    $next = get_next_posts_link();
                    $prev = get_previous_posts_link();
                    if ( empty( $prev ) ) {
                        echo '<a href="javascript:void(0)" class="prev page-numbers disabled">'.$prev_icon.'<strong>' . $prev_text . '</strong></a>';
                        $begin_for = 0;
                    }
                    else {
                        $begin_for = 1;
                    }

                    if ( empty( $next ) ) {
                        $end_for = count($links) - 1;
                    }
                    else {
                        $end_for = count($links) - 2;
                    }

                    // parse link in foreach for make a wrap only for numbers
                    foreach( $links as $key => $value ) {
                        if( $key == $begin_for ) {
                            echo '<div class="before-hr"></div>';
                            echo '<div class="pagination-numbers-wrap">';
                        }
                        echo ($value);
                        if( $key == $end_for ) {
                            echo '</div>';
                            echo '<div class="after-hr"></div>';
                        }
                    }

                    if ( empty( $next ) ) {
                        echo '<a href="javascript:void(0)" class="next page-numbers disabled"><strong>' . $next_text . '</strong>'.$next_icon.'</a>';
                    }
                    ?>
                </div><!-- .pagination -->
            </nav><!-- .navigation -->
        <?php endif;
    }