I have been reading through the Wordpress Source, trying to get a better understanding of how dynamic sidebars are rendered.
However, I am hitting a sticking point...
894 | do_action( 'dynamic_sidebar', $wp_registered_widgets[$id] );
I can't find where add_action('dynamic_sidebar', ... ) is defined. Without that part, I am sort of lost in what happens.
See the code here:
为了提供更多上下文，我试图弄清楚如何从特定侧边栏中获取一组小部件，然后从那里，我需要知道如何渲染该数组中的每个小部件。
我需要比dynamic_sidebar(...);给我更好的控制
好吧，该特定行允许您访问每个已注册的 Widget 属性，它的用法如下：
<?php
/* Plugin Name: Test registered widgets */
add_action( 'dynamic_sidebar', 'sidebar_widgets_so_18666065' );
/**
* As this is an action hook, we don't return nothing
* use the passed values to do your stuff
*/
function sidebar_widgets_so_18666065( $registered_widget )
{
# Each registered widget passes the following array
/*
$registered_widget = Array
(
[name] => Meta
[id] => meta-2
[callback] => Array
(
[0] => WP_Widget_Meta Object
(
[id_base] => meta
[name] => Meta
[widget_options] => Array
(
[classname] => widget_meta
[description] => Log in/out, admin, feed and WordPress links
)
[control_options] => Array
(
[id_base] => meta
)
[number] => 2
[id] => meta-2
[updated] =>
[option_name] => widget_meta
)
[1] => display_callback
)
[params] => Array
(
[0] => Array
(
[number] => 2
)
)
[classname] => widget_meta
[description] => Log in/out, admin, feed and WordPress links
)
*/
}