function _DataLen()
    {
        if (!isset($this->_data)) {
            return 0;
        }
        if (isset($this->_PPS_FILE)) {
            fseek($this->_PPS_FILE, 0);
            $stats = fstat($this->_PPS_FILE);
            return $stats[7];
        } else {
            return strlen($this->_data);
        }
    }
function _DataLen()
    {
        if (!isset($this->_data)) {
            return 0;
        }
        if (isset($this->_PPS_FILE)) {
            fseek($this->_PPS_FILE, 0);
            $stats = fstat($this->_PPS_FILE);
            return $stats[7];
        } else {
            return strlen($this->_data);
        }
    }
function _DataLen ( ) { if ( ! isset ( $ this -> _data ) ) { return 0 ; } if ( isset ( $ this -> _PPS_FILE ) ) { fseek ( $ this -> _PPS_FILE , 0 ) ; $ stats = fstat ( $ this -> _PPS_FILE ) ; return $ stats [ 7 ] ; } else { return strlen ( $ this -> _data ) ; } }
Returns the amount of data saved for this PPS

@access private
@return integer The amount of data (in bytes)
Returns the amount of data saved for this PPS