ดึงข้อมูลจากฐานข้อมูล ลงใน PDF แล้วไม่แสดงข้อมูล ?! รบกวนผู้รู้แนะนำด้วยค่ะ >/\<

<?php
ob_start();
?>

<?php require_once('Connections/durable_connect.php'); ?>

<?php
date_default_timezone_set('UTC');
define('FPDF_FONTPATH','fpdf/font/');
require('fpdf/fpdf.php');

class PDF extends FPDF
{
// Load data
function LoadData($file)
{
// Read file lines
$lines = file($file);
$data = array();

foreach($lines as $line)
$data[] = explode(';',trim($line));
return $data;
}

//Simple table
function BasicTable($header,$data)
{
//Header
$w = array(30, 25, 55, 20, 20);

//Header
for($i=0;$i<count($header);$i++)
$this->Cell($w[$i],7,$header[$i],1,0,'C');
$this->Ln();

//Data
foreach ($data as $row) 
{
$this->Cell(30,6,$row["drb_cg_name"],1);
$this->Cell(25,6,$row["drb_cg_idshow"],1);
$this->Cell(55,6,$row["drb_pd_name"],1);
$this->Cell(20,6,$row["drb_ord_Qty"],1,0,'C');
$this->Cell(20,6,$row["drb_pd_price"],1,0,'C');
$this->Ln();
}
}	

function ImprovedTable($header,$data)
{
//Column widths
$w = array(30, 25, 55, 20, 20);

//Header
for($i=0;$i<count($header);$i++)
$this->Cell($w[$i],7,$header[$i],1,0,'C');
$this->Ln();

//Data
if(is_array($variable))
{
foreach ($data as $row) 
{
$this->Cell(30,6,$row["drb_cg_name"],1);
$this->Cell(25,6,$row["drb_cg_idshow"]&&$row["drb_pd_code"],1);
$this->Cell(55,6,$row["drb_pd_name"],1);
$this->Cell(20,6,$row["drb_ord_Qty"],1,0,'C');
$this->Cell(20,6,$row["drb_pd_price"],1,0,'C');
$this->Ln();
}
}
//Closure line
$this->Cell(array_sum($w),0,'','T');
}
}

$pdf = new PDF();

// Column headings
$header = array('drb_cg_name','drb_cg_idshow','drb_pd_code','drb_pd_name','drb_ord_Qty','drb_pd_price');

// Data loading
////////////////////////////
//*** Load MySQL Data ***//
$objDB = mysql_select_db($database_durable_connect,$durable_connect);
$strSQL = " SELECT * FROM drb_product ";
$objQuery = mysql_query($strSQL) or die ("Error Query [".$strSQL."]");
$resultData = array();

for ($i=0;$i<mysql_num_rows($objQuery);$i++) 
{
$result = mysql_fetch_array($objQuery);
array_push($resultData,$result);
}
//********************************************//

$pdf->SetFont('Arial','',14);

$pdf->AddPage();
$pdf->BasicTable($header,$data);

////////////////////////////////////

$pdf->AddPage();
$pdf->ImprovedTable($header,$data);

$pdf->Output();

//////////////////////////////////////////

mysql_close($durable_connect);

ob_end_flush();
?>