- * @param int $currentcat
- * @param int $currentparent
- * @param int $parent
- * @param int $level
- * @param array $categories
- * @return bool|null
+ * @param int $currentcat Optional. ID of the current category. Default 0.
+ * @param int $currentparent Optional. Current parent category ID. Default 0.
+ * @param int $parent Optional. Parent ID to retrieve categories for. Default 0.
+ * @param int $level Optional. Number of levels deep to display. Default 0.
+ * @param array $categories Optional. Categories to include in the control. Default 0.
+ * @return bool|null False if no categories were found.