wordpress不用插件实现Pagenavi页面导航功能

function wpjam_pagenavi(){
    global $wp_query;   

    $big = 999999999; // need an unlikely integer
    
    $pagination = array(
        'base' => str_replace( $big, '%#%', get_pagenum_link( $big ) ),
        'format' => '',
        'total' => $wp_query->max_num_pages,
        'current' => max( 1, get_query_var('paged') ),
        'prev_text' => __('«'),
        'next_text' => __('»')
    );

    echo '<div class="pagenavi">'.paginate_links($pagination).'</div>'; 
}