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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.
| Line | Code |
|---|---|
| 701 | * @type string $widget_name Name of the widget. |
| 702 | * } |
| 703 | * @type array $widget_args { |
| 704 | * An array of multi-widget arguments. |
| 705 | * |
| 706 | * @type int $number Number increment used for multiples of the same widget. |
| 707 | * } |
| 708 | * } |
| 709 | */ |
| 710 | $params = apply_filters( 'dynamic_sidebar_params', $params ); |
| 711 | |
| 712 | $callback = $wp_registered_widgets[$id]['callback']; |
| 713 | |
| 714 | /** |
| 715 | * Fires before a widget's display callback is called. |
| 716 | * |
| 717 | * Note: The action fires on both the front end and back end, including |
| 718 | * for widgets in the Inactive Widgets sidebar on the Widgets screen. |
| 719 | * |