Wordpress Sitemap: Recursive Function

Wordpress Sitemap: Recursive Function

/**
 * check_for_children
 *
 * This recursive function retrieves all the sitemap pages, it calls itself
 * until the children pages for that node are exhausted
 *
 */

function check_for_children( $region_id, $children, $type = 1 ) {
	if ( count($children) > 0 ) {
		echo '<ul class="children">';
		foreach ($children as $child) {
			// Check if page is supposed to show in the sitemap or not
			$meta = get_post_meta($child -> ID, 'wpcf-visible-in-sitemap');
			if ( $meta[0] != 1 ) {
				echo '<li><a href="' . get_permalink($child -> ID) . '" alt="Link to: ' . $child -> post_title . '">' . $child -> post_title . '</a></li>';
				$children = get_posts( array('category' => $region_id, 'post_type' => 'page', 'numberposts' => 100, 'post_parent' => $child -> ID, 'post_status' => 'publish', 'orderby' => 'menu_order', 'order' => 'ASC') );
				check_for_children($region_id, $children);
			}
		}
		echo '</ul>';
	} else {
		return;
	}
}