Wordpress已经完成了正常程序的评估wp_head 当它到达小部件时。这个dynamic_sidebar_params 过滤器也只会在那时调用，因此它对获取css 在头部。Here\'这是我早些时候写的关于这个问题的东西。

要在头部包含来自小部件设置的信息，您必须使用在上激活的功能直接访问设置init 行动Beware 我没有测试以下内容，不知道是否会出现任何并发症。

所有小部件设置都存储在一个名为$wp_registered_widgets, 遗憾的是，没有很好的记录（大概是因为你不应该弄乱它）。数据结构是这样的(props @shibashake, 但可能会在没有警告的情况下更改）：

Array (
    [archives-1] => Array (
            [name] => Archives
            [id] => archives-1
            [callback] => Array (
                    [0] => WP_Widget_Archives Object (
                            [id_base] => archives
                            [name] => Archives
                            [widget_options] => Array (
                                    [classname] => widget_archive
                                    [description] => A monthly archive of your blog’s posts )

                            [control_options] => Array (
                                    [id_base] => archives )

                            [number] => 1
                            [id] => archives-1
                            [updated] => 
                            [option_name] => widget_archives )

                    [1] => display_callback )

            [params] => Array (
                    [0] => Array (
                            [number] => -1 ) 
                )

            [classname] => widget_archive
            [description] => A monthly archive of your blog’s posts )

    [text-8] => Array (
            [name] => Text
            [id] => text-8
            [callback] => Array (
                    [0] => WP_Widget_Text Object (
                            [id_base] => text
                            [name] => Text
                            [widget_options] => Array (
                                    [classname] => widget_text
                                    [description] => Arbitrary text or HTML )

                            [control_options] => Array (
                                    [id_base] => text
                                    [width] => 400
                                    [height] => 350 )

                            [number] => 8
                            [id] => text-8
                            [updated] => 
                            [option_name] => widget_text )

                    [1] => display_callback )

            [params] => Array (
                    [0] => Array (
                            [number] => 8 )
                 )

            [classname] => widget_text
            [description] => Arbitrary text or HTML )
... )

在数组中搜索以查找小部件的所有实例

在每个实例中查找已录制的样式设置，并使用wp_add_inline_style.