|wp-includes/nav-menu.php: has_nav_menu|| |
Filters whether a nav menu is assigned to the specified location.
|wp-includes/plugin.php: apply_filters()|| |
Calls the callback functions that have been added to a filter hook.
|wp-includes/nav-menu.php: get_registered_nav_menus()|| |
Retrieves all registered navigation menu locations in a theme.
|wp-includes/nav-menu.php: get_nav_menu_locations()|| |
Retrieves all registered navigation menu locations and the menus assigned to them.