WordPress如何在任何地方显示小工具？

// 在正文最后添加最近文章小工具 add_filter( 'the_content', 'dcwd_append_recent_posts_widget_to_content' ); function dcwd_append_recent_posts_widget_to_content( $content ) { 	$rpw = new WP_Widget_Recent_posts;   	$args = array( 		'before_widget' => '<div class="widget">', 		'after_widget'  => "</divn", 		'before_title'  => '<h2 class="widgettitle">', 		'after_title'   => "</h2>n", 	);   	$instance = array( 			'title' => 'Some Recent Posts', 			'number' => 2, 			'show_date' => true, 	); 	ob_start(); 	$rpw->widget( $args, $instance ); 	$output = ob_get_contents(); 	ob_end_clean(); 	 	return $content . $output; }

// 在侧边栏之外wp_body_open钩子中调用 WordPress Meta 小部件。 add_action( 'wp_body_open', 'dcwd_meta_widget_at_top' ); function dcwd_meta_widget_at_top() { 	$mw = new WP_Widget_Meta;   	$args = array( 		//'before_widget' => '<li id="%1$s" class="widget %2$s">', 		//'after_widget'  => "</li>n", 		'before_widget' => '<div class="widget">', 		'after_widget'  => "</divn", 		'before_title'  => '<h2 class="widgettitle">', 		'after_title'   => "</h2>n", 	);   	$instance = array( 			'title' => 'Our Meta Widget', 	); 	$mw->widget( $args, $instance ); }