$tbl='<table style="tbl">';
	$tbl=$tbl.'<tr><th align=center>Наименование</th><th align=center>Стоимость</th><th align=center>Кол-во</th><th align=center>Сумма</th></tr>';
	$result = mysqli_query($link, $sql);
	while ($row = mysqli_fetch_assoc($result)) {
		$tbl=$tbl.'<tr>';
		$tbl=$tbl.'<td align="right">'.$row['parameter_descriptions'].'</td><td>'.$row['price']>0?$row['price'].'руб':'&nbsp;';
		$tbl=$tbl.'</td>';
		$tbl=$tbl.'<td>';
		$tbl=$tbl.$row['quantity']>0?$row['quantity']:'&nbsp;';
		$tbl=$tbl.'</td>';
		$tbl=$tbl.'<td>';
		$tbl=$tbl.($row['quantity']>0 && $row['price']>0)?$row['price']*$row['quantity'].'руб':'&nbsp;';
		$tbl=$tbl.'</td>';
		$tbl=$tbl.'</tr>';
	};	
	$tbl=$tbl.'</table>';
	mysqli_close($link);

$pdf->writeHTML($tbl, true, false, false, false, '');
$pdf->Output('oferta_'.$offer.'.pdf', 'I');

$tbl = <<<EOD
<table>
<tr><td>bla-bla-bla</td></tr>
</table>
EOD;