is_nav_menu() WP 1.0
Check if the given ID is a navigation menu.
Returns true if it is; false otherwise.
Uses: wp_get_nav_menu_object()
1 time — 0.004447 sec (very slow) | 50000 times — 7.98 sec (fast) | PHP 7.2.5, WP 4.9.8
No Hooks.
Return
true|false. Whether the menu exists.
Usage
is_nav_menu( $menu );
- $menu(int|string|WP_Term) (required)
- Menu ID, slug, name, or object of menu to check.
Changelog
| Since 3.0.0 | Introduced. |
Code of is_nav_menu() is nav menu WP 5.8.1
function is_nav_menu( $menu ) {
if ( ! $menu ) {
return false;
}
$menu_obj = wp_get_nav_menu_object( $menu );
if (
$menu_obj &&
! is_wp_error( $menu_obj ) &&
! empty( $menu_obj->taxonomy ) &&
'nav_menu' === $menu_obj->taxonomy
) {
return true;
}
return false;
}