Horde_Imap_Client_Data_Format_String::binary PHP Метод

If literal output, is the data binary?

public binary ( ) : boolean
Результат	boolean	True if the literal output is binary.

    public function binary()
    {
        return isset($this->_filter) && !empty($this->_filter->binary);
    }

Horde_Imap_Client_Data_Format_String