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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 |
|---|---|
| 40 | |
| 41 | /** |
| 42 | * Filters the nav_menu term retrieved for wp_get_nav_menu_object(). |
| 43 | * |
| 44 | * @since 4.3.0 |
| 45 | * |
| 46 | * @param WP_Term|false $menu_obj Term from nav_menu taxonomy, or false if nothing had been found. |
| 47 | * @param int|string|WP_Term $menu The menu ID, slug, name, or object passed to wp_get_nav_menu_object(). |
| 48 | */ |
| 49 | return apply_filters( 'wp_get_nav_menu_object', $menu_obj, $menu ); |
| 50 | } |
| 51 | |
| 52 | /** |
| 53 | * Check if the given ID is a navigation menu. |
| 54 | * |
| 55 | * Returns true if it is; false otherwise. |
| 56 | * |
| 57 | * @since 3.0.0 |
| 58 | * |