update blob isn't working

[Adrian Marriage]

Hi some help here would be appreciated my update isn't working everything in this statement updates except $file1 $file2 which are blob fields. After the update they just stay as [BLOB 0]??

in the table zloads data2 and thumbnail2 etc are longblobs
AI have been searching online all day to find out something about this but can't find anything I guess here is the last stop.
I am sure my coding is not good I am quite new to php.

<? 
ini_set ("display_errors", "1");
error_reporting(E_ALL);
session_start();
error_reporting(7);
require("../global/admin_functions.php");


$sid = $_SESSION['LOGINID'];
if($sid!="")

{           
            $action = $_POST["action"];
	      if($action=="")
		$action = $_GET["action"];
 $sql = "SELECT * FROM zloads WHERE intProductID='$id'";
	$temps  = $DB_site->query($sql);
	if($row=$DB_site->fetch_array($temps))
	{
$description1         = $row["description1"];
$data1                = $row["data1"];
$filename1            = $row["filename1"];
$filesize1            = $row["filesize1"];
$filetype1            = $row["filetype1"];
$thumbnail1           = $row["thumbnail1"];
$thumbnailtype1       = $row["thumbnailtype1"];
$description2         = $row["description2"];
$data2                = $row["data2"];
$filename2            = $row["filename2"];
$filesize2            = $row["filesize2"];
$filetype2            = $row["filetype2"];
$thumbnail2           = $row["thumbnail2"];
$thumbnailtype2       = $row["thumbnailtype2"];
$description3         = $row["description3"];
$data3                = $row["data3"];
$filename3            = $row["filename3"];
$filesize3            = $row["filesize3"];
$filetype3            = $row["filetype3"];
$thumbnail3           = $row["thumbnail3"];
$thumbnailtype3       = $row["thumbnailtype3"];
$description4         = $row["description4"];
$data4                = $row["data4"];
$filename4            = $row["filename4"];
$filesize4            = $row["filesize4"];
$filetype4            = $row["filetype4"];
$thumbnail4           = $row["thumbnail4"];
$thumbnailtype4       = $row["thumbnailtype4"];

}

	if($action=="delete1")
	{
		$id = $_GET["id"];
		if($id!="")
		{

$sql01 = "update zloads set description1 = '',data1 = '', filename1 = '', filesize1 = '', filetype1 = '', thumbnail1 = '', thumbnailtype1= '' where intProductID='$id'";


$file1 = addslashes(fread(fopen($data2,0,"data2")));
$file2 = addslashes(fread(fopen($thumbnail2,0,"thumbnail2")));
$sql02 = "update zloads set description1 = '$description2', data1 = '$file1', filename1 = '$filename2', filesize1 = '$filesize2', filetype1 = '$filetype2', thumbnail1 = '$file2', thumbnailtype1= '$thumbnailtype2' where intProductID='$id'";




			
                $DB_site->query($sql01);
                $DB_site->query($sql02);

		    header("Location:updatepix.php?adid=$id");
		    exit;
			
		}
	}	
}
?>