is_nav_menu_item( int $menu_item_id )

Determines whether the given ID is a nav menu item.

Parameters

$menu_item_id

(Required) The ID of the potential nav menu item.

Return

(bool) Whether the given ID is that of a nav menu item.

Source

File: wp-includes/nav-menu.php 

function is_nav_menu_item( $menu_item_id = 0 ) {
	return ( ! is_wp_error( $menu_item_id ) && ( 'nav_menu_item' == get_post_type( $menu_item_id ) ) );
}

Expand Source Code View on GitHub

Related

Uses

Uses
Uses Description
wp-includes/post.php: get_post_type()

Retrieves the post type of the current post or of a given post.
wp-includes/load.php: is_wp_error()

Check whether variable is a ClassicPress Error.

Changelog

Changelog
Version Description
WP-3.0.0 Introduced.