ถ้าแสดงข้อมูลเป็นตารางแล้วต้องการ export เป็นไฟล์ pdf ต้องทำอย่างไรครับ

<?

require_once('tcpdf/config/lang/eng.php');
require_once('tcpdf/tcpdf.php');
   
// create new PDF document
$pdf = new TCPDF(PDF_PAGE_ORIENTATION, PDF_UNIT, PDF_PAGE_FORMAT, true, 'UTF-8', false);

// set document information
$pdf->SetCreator(PDF_CREATOR);
$pdf->SetAuthor('Nicola Asuni');
$pdf->SetTitle('TCPDF Example');
$pdf->SetSubject('TCPDF Tutorial');
$pdf->SetKeywords('TCPDF, PDF, example, test, guide');

// set default header data
$pdf->SetHeaderData(PDF_HEADER_LOGO, PDF_HEADER_LOGO_WIDTH, PDF_HEADER_TITLE.'', PDF_HEADER_STRING);

// set header and footer fonts
$pdf->setHeaderFont(Array(PDF_FONT_NAME_MAIN, '', PDF_FONT_SIZE_MAIN));
$pdf->setFooterFont(Array(PDF_FONT_NAME_DATA, '', PDF_FONT_SIZE_DATA));

// set default monospaced font
$pdf->SetDefaultMonospacedFont(PDF_FONT_MONOSPACED);

//set margins
$pdf->SetMargins(PDF_MARGIN_LEFT, PDF_MARGIN_TOP, PDF_MARGIN_RIGHT);
$pdf->SetHeaderMargin(PDF_MARGIN_HEADER);
$pdf->SetFooterMargin(PDF_MARGIN_FOOTER);

//set auto page breaks
$pdf->SetAutoPageBreak(TRUE, PDF_MARGIN_BOTTOM);

//set image scale factor
$pdf->setImageScale(PDF_IMAGE_SCALE_RATIO);

//set some language-dependent strings
$pdf->setLanguageArray($l);

// ---------------------------------------------------------

// set font
$pdf->SetFont('thsarabun', '', 10);

// add a page
$pdf->AddPage();

// writeHTML($html, $ln=true, $fill=false, $reseth=false, $cell=false, $align='')
// writeHTMLCell($w, $h, $x, $y, $html='', $border=0, $ln=0, $fill=0, $reseth=true, $align='', $autopadding=true)

include("include/SendDB.php");
mysql_query("SET NAMES utf8",$Conn); // set กำหนดมาตราฐาน
mysql_select_db($db) or die("เลือกฐานข้อมูลไม่ได้"); // เลือกฐานข้อมูล
mysql_query("SET NAMES UTF8");
$result = mysql_query($sql);
$cust = mysql_fetch_array($result);
// create some HTML content
$html = '<table border="1" align="center" cellpadding="0" cellspacing="1"><tr>
<th width="2%" scope="col"><div align="center" class="style18">คำนำหน้า</div></th>
<th width="12%" scope="col"><div align="center" class="style18">ชื่อ</div></th>
<th width="16%" scope="col"><div align="center" class="style18">นามสกุล</div></th>
<th width="2%" scope="col"><div align="center" class="style18">เพศ</div></th>
<th width="4%" scope="col"><div align="center" class="style18">โทรศัพท์</div></th>
<th width="4%" scope="col"><div align="center" class="style18">มือถือ</div></th>
<th width="25%" scope="col"><div align="center" class="style18">ตำแหน่ง</div></th>
<th width="10%" scope="col"><div align="center" class="style18">สังกัด</div></th>
<th width="25%" scope="col"><div align="center" class="style18">หมายเหตุ</div></th>
</tr>';
$pdf->writeHTML($html, true, false, true, false, '');


$sql_show = "select * from story";
$result_show = mysql_query($sql_show) or die(mysql_error());
{
while($row_show = mysql_fetch_array($result_show))
{


// --------   html2 -------  ครับ
$html2 ='  <tr>
    <td><div align="center"><?=$row_show['rank']?></div></td>
    <td><div align="center"><?=$row_show['name']?></div></td>
    <td><div align="center"><?=$row_show['surname']?></div></td>
    <td><div align="center"><?=$row_show['sex']?></div></td>
    <td><div align="center"><?=$row_show['tel']?></div></td>
    <td><div align="center"><?=$row_show['mobile']?></div></td>
    <td><div align="center"><?=$row_show['position']?></div></td>
    <td><div align="center"><?=$row_show['department']?></div></td>
    <td><div align="center"><?=$row_show['note']?></div></td>
  </tr></table>';
} // คำสั่งจบดึงข้อมูลในตาราง story ออกมา
}
$pdf->writeHTML($html2, true, false, true, false, '');
	}

//$pdf->writeHTML($html.$html2, true, false, true, false, '');


$pdf->lastPage();

$pdf->Output('Quotation.pdf', 'I');

//============================================================+
// END OF FILE                                                
//============================================================+
?>