walk_category_dropdown_tree() WordPress Function

The walk_category_dropdown_tree() function is a tool for Wordpress that helps you create a hierarchical dropdown list of categories. This can be useful for organizing your content into categories and subcategories. The function takes two arguments: the first is the id of the category to start with, and the second is an array of options.

walk_category_dropdown_tree( mixed $args ) #

function walk_category_dropdown_tree( ...$args ) {
	// The user's options are the third parameter.
	if ( empty( $args[2]['walker'] ) || ! ( $args[2]['walker'] instanceof Walker ) ) {
		$walker = new Walker_CategoryDropdown;
	} else {
		/**
		 * @var Walker $walker
		 */
		$walker = $args[2]['walker'];
	}
	return $walker->walk( ...$args );
}