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The best way to understand what a hook does is to look at where it occurs in the source code.
do_action( "hook_name" )apply_filters( "hook_name", "what_to_filter" ).Remember, this hook may occur in more than one file. Moreover, the hook's context may change from version to version.
This hook occurs 2 times in this file.
| Line | Code |
|---|---|
| 825 | * containing the widget object. Fired on the back end, `$callback` |
| 826 | * is 'wp_widget_control', see `$_callback`. |
| 827 | * @type array $params An associative array of multi-widget arguments. |
| 828 | * @type string $classname CSS class applied to the widget container. |
| 829 | * @type string $description The widget description. |
| 830 | * @type array $_callback When the hook is fired on the back end, `$_callback` is populated |
| 831 | * with an array containing the widget object, see `$callback`. |
| 832 | * } |
| 833 | */ |
| 834 | do_action( 'dynamic_sidebar', $wp_registered_widgets[ $id ] ); |
| 835 | |
| 836 | if ( is_callable( $callback ) ) { |
| 837 | call_user_func_array( $callback, $params ); |
| 838 | $did_one = true; |
| 839 | } |
| 840 | } |
| 841 | |
| 842 | if ( ! is_admin() && ! empty( $sidebar['after_sidebar'] ) ) { |
| 843 | echo $sidebar['after_sidebar']; |
| Line | Code |
| 2021 | |
| 2022 | /** This filter is documented in wp-includes/widgets.php */ |
| 2023 | $params = apply_filters( 'dynamic_sidebar_params', $params ); |
| 2024 | |
| 2025 | $callback = $wp_registered_widgets[ $widget_id ]['callback']; |
| 2026 | |
| 2027 | ob_start(); |
| 2028 | |
| 2029 | /** This filter is documented in wp-includes/widgets.php */ |
| 2030 | do_action( 'dynamic_sidebar', $wp_registered_widgets[ $widget_id ] ); |
| 2031 | |
| 2032 | if ( is_callable( $callback ) ) { |
| 2033 | call_user_func_array( $callback, $params ); |
| 2034 | } |
| 2035 | |
| 2036 | return ob_get_clean(); |
| 2037 | } |
| 2038 | |
| 2039 | /** |