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nav-menu-template.php
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<?php /** * Nav Menu API: Template functions * * @package WordPress * @subpackage Nav_Menus * @since 3.0.0 */ /** Walker_Nav_Menu class */ require_once ABSPATH . WPINC . '/class-walker-nav-menu.php'; /** * Displays a navigation menu. * * @since 3.0.0 * @since 4.7.0 Added the `item_spacing` argument. * @since 5.5.0 Added the `container_aria_label` argument. * * @param array $args { * Optional. Array of nav menu arguments. * * @type int|string|WP_Term $menu Desired menu. Accepts a menu ID, slug, name, or object. * Default empty. * @type string $menu_class CSS class to use for the ul element which forms the menu. * Default 'menu'. * @type string $menu_id The ID that is applied to the ul element which forms the menu. * Default is the menu slug, incremented. * @type string $container Whether to wrap the ul, and what to wrap it with. * Default 'div'. * @type string $container_class Class that is applied to the container. * Default 'menu-{menu slug}-container'. * @type string $container_id The ID that is applied to the container. Default empty. * @type string $container_aria_label The aria-label attribute that is applied to the container * when it's a nav element. Default empty. * @type callable|false $fallback_cb If the menu doesn't exist, a callback function will fire. * Default is 'wp_page_menu'. Set to false for no fallback. * @type string $before Text before the link markup. Default empty. * @type string $after Text after the link markup. Default empty. * @type string $link_before Text before the link text. Default empty. * @type string $link_after Text after the link text. Default empty. * @type bool $echo Whether to echo the menu or return it. Default true. * @type int $depth How many levels of the hierarchy are to be included. * 0 means all. Default 0. * Default 0. * @type object $walker Instance of a custom walker class. Default empty. * @type string $theme_location Theme location to be used. Must be registered with * register_nav_menu() in order to be selectable by the user. * @type string $items_wrap How the list items should be wrapped. Uses printf() format with * numbered placeholders. Default is a ul with an id and class. * @type string $item_spacing Whether to preserve whitespace within the menu's HTML. * Accepts 'preserve' or 'discard'. Default 'preserve'. * } * @return void|string|false Void if 'echo' argument is true, menu output if 'echo' is false. * False if there are no items or no menu was found. */ function wp_nav_menu( $args = array() ) { static $menu_id_slugs = array(); $defaults = array( 'menu' => '', 'container' => 'div', 'container_class' => '', 'container_id' => '', 'container_aria_label' => '', 'menu_class' => 'menu', 'menu_id' => '', 'echo' => true, 'fallback_cb' => 'wp_page_menu', 'before' => '', 'after' => '', 'link_befor