Source View: wp_get_nav_menu_items

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Understanding Source Code

The best way to understand what a hook does is to look at where it occurs in the source code.

  • Action hooks look like this: do_action( "hook_name" )
  • Filter hooks look like this: 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.

Source View

Line Code
535      if ( ARRAY_A == $args['output'] ) {
536           $GLOBALS['_menu_item_sort_prop'] = $args['output_key'];
537           usort($items, '_sort_nav_menu_items');
538           $i = 1;
539           foreach( $items as $k => $item ) {
540                $items[$k]->$args['output_key'] = $i++;
541           }
542      }
543
544      return apply_filters( 'wp_get_nav_menu_items',  $items, $menu, $args );
545 }
546
547 /**
548  * Decorates a menu item object with the shared navigation menu item properties.
549  *
550  * Properties:
551  * - db_id:           The DB ID of this item as a nav_menu_item object, if it exists (0 if it doesn't exist).
552  * - object_id:          The DB ID of the original object this menu item represents, e.g. ID for posts and term_id for categories.
553  * - type:          The family of objects originally represented, such as "post_type" or "taxonomy."