public function isEnum( &$enumName = null )
    {
        if( isset( $this->data['enumName'] ) ){
            $enumName = $this->data['enumName'];
            return true;
        }
        $enumName = null;
        return false;
    }
public function isEnum( &$enumName = null )
    {
        if( isset( $this->data['enumName'] ) ){
            $enumName = $this->data['enumName'];
            return true;
        }
        $enumName = null;
        return false;
    }
public function isEnum ( & $ enumName = null ) { if ( isset ( $ this -> data [ 'enumName' ] ) ) { $ enumName = $ this -> data [ 'enumName' ] ; return true ; } $ enumName = null ; return false ; }
Does this dataType reference a enum?
@param string $enumName
@return bool
Does this dataType reference a enum?