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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 |
|---|---|
| 4423 | * |
| 4424 | * Passing a falsey value to the filter will effectively short-circuit |
| 4425 | * the Widgets library from loading. |
| 4426 | * |
| 4427 | * @since 2.8.0 |
| 4428 | * |
| 4429 | * @param bool $wp_maybe_load_widgets Whether to load the Widgets library. |
| 4430 | * Default true. |
| 4431 | */ |
| 4432 | if ( ! apply_filters( 'load_default_widgets', true ) ) { |
| 4433 | return; |
| 4434 | } |
| 4435 | |
| 4436 | require_once( ABSPATH . WPINC . '/default-widgets.php' ); |
| 4437 | |
| 4438 | add_action( '_admin_menu', 'wp_widgets_add_menu' ); |
| 4439 | } |
| 4440 | |
| 4441 | /** |