Use walker for specific menu, or avoid use of walker

1. What is a walker menu?
2. What is a walker class?
3. How do I use walker class in WordPress?
4. How do you use the Nav Walker?
5. How do I register a nav menu in WordPress?
6. How do I add a custom field to a menu in WordPress?
7. What happened to the USS Shenzhou?

What is a walker menu?

WordPress uses a special class, called the Walker class, designed to help traverse and display elements having hierarchical structure. WordPress goes through menu pages to display the items using a walker object. The function Walker_Nav_Menu class is located in wp-includes/nav-menu-template.

What is a walker class?

The walker class is an abstract class designed to help traverse and display elements which have a hierarchical (or tree like) structure. ... It simply traces each branch of your tree: it has to be extended by other classes which tell it what to do for each element it comes across.

How do I use walker class in WordPress?

WordPress allows using so-called Walker classes for traversing and displaying elements in an hierarchical structure.
...
Example: displaying menu item descriptions

1. ...
2. $output . = $item->title;
3. if ($depth == 0 && ! empty($item->description))
4. $output . = '<span class="description">' . $item->description . '</span>';
5. ...

How do you use the Nav Walker?

Add or update any wp_nav_menu() functions in your theme (often found in header. php ) to use the new walker by adding a 'walker' item to the wp_nav_menu args array. wp_nav_menu( array( 'theme_location' => 'primary', 'depth' => 2, // 1 = no dropdowns, 2 = with dropdowns.

How do I register a nav menu in WordPress?

To add a custom navigation menu, the first thing you need to do is register your new navigation menu by adding this code to your theme's functions. php file. add_action( 'init' , 'wpb_custom_new_menu' ); You can now go to Appearance » Menus page in your WordPress admin and try to create or edit a new menu.

How do I add a custom field to a menu in WordPress?

Using these you can now easily add your own custom fields to menu items in both the Admin menu edit page and in the Customizer options panel.
...
Add a WordPress Menu Item Custom Field using Code

1. Step One: Adding the Output. ...
2. Step Two: Saving your Input. ...
3. Step Three: Show the Menu Field Value.

What happened to the USS Shenzhou?

The U.S.S. Shenzhou NCC-1227 was a Walker class starship commanded by Captain Philippa Georgiou. The ship was destroyed during the Battle of the Binary Stars at the start of the Klingon-Federation War.