CSV Export

$header = "product_id,sku,name,cost,rrp,our_price,sale_price,clearance_price,supplier_gross_price,supplier_net_price\n";
$data  = $header;
$sql = "SELECT * FROM products ORDER BY product_id ASC";
$rs = mysql_query($sql);
while($row = mysql_fetch_assoc($rs)){
	$data .= $row['product_id'].",".$row['sku'].",".$row['name'].",".$row['cost'].",".$row['rrp'].",".$row['our_price'].",".$row['sale_price'].",".$row['clearance_price'].",".$row['supplier_gross_price'].",".$row['supplier_net_price']."\n";
}

$file_name = "product_price.csv";
ob_clean();
echo $data;
header("Content-type: application/csv"); 
header("Content-Disposition: attachment; filename=$file_name");
header("Pragma: no-cache");
header("Expires: 0");