A HitchHackers guide through WordPress

Source code

function walk_page_dropdown_tree() {

	$args = func_get_args();

	if ( empty($args[2]['walker']) ) // the user's options are the third parameter

		$walker = new Walker_PageDropdown;

	else

		$walker = $args[2]['walker'];



	return call_user_func_array(array(&$walker, 'walk'), $args);

}