wp_nav_menu filter-hook . WP 3.0.0

Filters the HTML content for navigation menus.

Usage

add_filter( 'wp_nav_menu', 'filter_function_name_1558', 10, 2 );
function filter_function_name_1558( $nav_menu, $args ){
	// filter...

	return $nav_menu;
}

$nav_menu(string)

The HTML content for the navigation menu.

$args(stdClass)

An object containing wp_nav_menu() arguments.

Where the hook is called

$nav_menu = apply_filters( 'wp_nav_menu', $nav_menu, $args );

Where the hook is used (in WP core)

add_filter( 'wp_nav_menu', array( $this, 'filter_wp_nav_menu' ), 10, 2 );