* @param bool $is_active
* Value we want to set the is_active field.
*
- * @return Object DAO object on sucess, null otherwise
+ * @return Object DAO object on sucess, NULL otherwise
*
* @static
*/
* @param array $defaults
* (reference ) an assoc array to hold the flattened values.
*
- * @return CRM_Core_BAO_Navigation object on success, null otherwise
+ * @return CRM_Core_BAO_Navigation object on success, NULL otherwise
* @static
*/
public static function retrieve(&$params, &$defaults) {