Bootstrap pagination for Wordpress

functions.php

function wp_bootstrap_pagination()
{

    if( is_singular() ) {
        return;
    }

    global $wp_query;

    if( $wp_query->max_num_pages <= 1 ) {
        return;
    }

    $paged = get_query_var( 'paged' ) ? absint( get_query_var( 'paged' ) ) : 1;
    $max   = intval( $wp_query->max_num_pages );

    if ( $paged >= 1 ) {
        $links[] = $paged;
    }

    /** Add the pages around the current page to the array */
    if ( $paged >= 3 ) {
        $links[] = $paged - 1;
        $links[] = $paged - 2;
    }

    if ( ( $paged + 2 ) <= $max ) {
        $links[] = $paged + 2;
        $links[] = $paged + 1;
    }

    echo '<nav class="text-center"><ul class="pagination">';

    if ( get_previous_posts_link() ) {
        printf( '<li>%s</li>', get_previous_posts_link('&laquo;') );
    } else {
        echo '<li class="disabled"><span><span aria-hidden="true">&laquo;</span></span></li>';
    }

    if ( ! in_array( 1, $links ) ) {
        $class = 1 == $paged ? ' class="active"' : '';

        printf( '<li%s><a href="%s">%s</a></li>', $class, esc_url( get_pagenum_link( 1 ) ), '1' );

        if ( ! in_array( 2, $links ) ) {
            echo '<li>…</li>';
        }
    }

    sort( $links );
    foreach ( (array) $links as $link ) {
        $class = $paged == $link ? ' class="active"' : '';
        printf( '<li%s><a href="%s">%s</a></li>', $class, esc_url( get_pagenum_link( $link ) ), $link );
    }

    if ( ! in_array( $max, $links ) ) {
        if ( ! in_array( $max - 1, $links ) ) {
            printf('<li>%s</li>', get_next_posts_link('…'));
        }

        $class = $paged == $max ? ' class="active"' : '';
        printf( '<li%s><a href="%s">%s</a></li>', $class, esc_url( get_pagenum_link( $max ) ), $max );
    }

    /** Next Post Link */
    if ( get_next_posts_link() ) {
        printf( '<li>%s</li>', get_next_posts_link('&raquo;') );
    } else {
        echo '<li class="disabled"><span><span aria-hidden="true">&raquo;</span></span></li>';
    }

    echo '</ul></nav>';
}