给wordpress某个分类下的内容添加分类筛选功能

add_action('init', 'create_color');
function create_color() {
    $labels = array(
        'name' => _x('Colors', 'taxonomy general name'),
        'singular_name' => _x('Color', 'taxonomy singular name'),
        'search_items' => __('Search Colors'),
        'all_items' => __('All Colors'),
        'parent_item' => __('Parent Color'),
        'parent_item_colon' => __('Parent Color:'),
        'edit_item' => __('Edit Color'),
        'update_item' => __('Update Color'),
        'add_new_item' => __('Add New Color'),
        'new_item_name' => __('New Color Name'),
    );
    register_taxonomy('color', 'post', array(
        'hierarchical' => false,
        'labels' => $labels,
        'show_ui' => true,
        'query_var' => true,
        'rewrite' => array('slug' => 'color')
    ));
}