public function getHeader($header, $into_class = null)
    {
        $header = parent::getHeader($header);

        if (!is_array($header)) {
            return [$header];
        }

        return $header;
    }
public function getHeader($header, $into_class = null)
    {
        $header = parent::getHeader($header);

        if (!is_array($header)) {
            return [$header];
        }

        return $header;
    }
public function getHeader ( $ header , $ into_class = null ) { $ header = parent :: getHeader ( $ header ) ; if ( ! is_array ( $ header ) ) { return [ $ header ] ; } return $ header ; }
Get a header by name

@param  string $header
@return string
Get a header by name