*
* @access public
*
+ * @param string $returnColumn
+ *
* @return array - array reference of all survey activity types.
* @static
*/
* @access public
* @static
*
- * @param boolean $name pseudoconstant to be flushed
- *
+ * @param bool|string $name pseudoconstant to be flushed
*/
public static function flush($name = 'cache') {
if (isset(self::$$name)) {