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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 |
|---|---|
| 1484 | $nav_menu_option['auto_add'], |
| 1485 | wp_get_nav_menus( array( 'fields' => 'ids' ) ) |
| 1486 | ); |
| 1487 | |
| 1488 | update_option( 'nav_menu_options', $nav_menu_option, false ); |
| 1489 | |
| 1490 | wp_defer_term_counting( false ); |
| 1491 | |
| 1492 | /** This action is documented in wp-includes/nav-menu.php */ |
| 1493 | do_action( 'wp_update_nav_menu', $nav_menu_selected_id ); |
| 1494 | |
| 1495 | /* translators: %s: Nav menu title. */ |
| 1496 | $message = sprintf( __( '%s has been updated.' ), '<strong>' . $nav_menu_selected_title . '</strong>' ); |
| 1497 | $notice_args = array( |
| 1498 | 'id' => 'message', |
| 1499 | 'dismissible' => true, |
| 1500 | 'additional_classes' => array( 'updated' ), |
| 1501 | ); |
| 1502 | |