function getSetValues($key)
    {
        if (isset($this->configuration_info[$key]) &&
            isset($this->configuration_info[$key]['type']) &&
            $this->configuration_info[$key]['type'] == 'set')
        {
            $valid_set = $this->configuration_info[$key]['valid_set'];
            reset($valid_set);
            if (key($valid_set) === 0) {
                return $valid_set;
            }

            return array_keys($valid_set);
        }

        return null;
    }
function getSetValues($key)
    {
        if (isset($this->configuration_info[$key]) &&
            isset($this->configuration_info[$key]['type']) &&
            $this->configuration_info[$key]['type'] == 'set')
        {
            $valid_set = $this->configuration_info[$key]['valid_set'];
            reset($valid_set);
            if (key($valid_set) === 0) {
                return $valid_set;
            }

            return array_keys($valid_set);
        }

        return null;
    }
function getSetValues ( $ key ) { if ( isset ( $ this -> configuration_info [ $ key ] ) && isset ( $ this -> configuration_info [ $ key ] [ 'type' ] ) && $ this -> configuration_info [ $ key ] [ 'type' ] == 'set' ) { $ valid_set = $ this -> configuration_info [ $ key ] [ 'valid_set' ] ; reset ( $ valid_set ) ; if ( key ( $ valid_set ) === 0 ) { return $ valid_set ; } return array_keys ( $ valid_set ) ; } return null ; }
Get the list of allowed set values for a config value.  Returns
NULL for config values that are not sets.

@param string  config key
@return array enumerated array of set values, or NULL if the
config key is unknown or not a set

@access public
Get the list of allowed set values for a config value . Returns NULL for config values that are not sets .