ขอความช่วยเหลือแก้ไขข้อมูลในตาราง Access ใช้ ADO ดิฉันพยายามอยู่หลายวันไม่ทราบผิดตรงไหน

<?
$fileupload =  "upload/" . $_FILES['fileupload']['name'];

$strConn = new COM("ADODB.Connection") or die("Cannot start ADO"); 
$strConn->Open("DRIVER={Microsoft Access Driver (*.mdb)}; DBQ=" . realpath("expert.mdb"));	  

If ($chkdel=="1") {
	$strSQL="update Topics set Biodata=' ' WHERE ID = '".$_GET["ID"]."' "; 
	                    unlink("$filedel");
}
If ($fileupload) {
	move_uploaded_file ($_FILES['fileupload']['tmp_name'] ,$fileupload);
	$strSQL="update Topics set  Biodata='".$fileupload."' WHERE ID = '".$_GET["ID"]."' "; 
}
$strSQL = "UPDATE topics SET ";   
$strSQL .= ",Topic = '".$_POST["Topic"]."' "; 
$strSQL .= ",Position = '".$_POST["Position"]."' "; 
$strSQL .= ",Office = '".$_POST["Office"]."' "; 
$strSQL .= ",Phone = '".$_POST["Phone"]."' ";  
$strSQL .= ",Email1 = '".$_POST["Email1"]."' "; 
$strSQL .= ",Subject = '".$_POST["Subject"]."' "; 
$strSQL .= ",User = '".$_POST["User"]."' "; 
$strSQL .= ",Office2 = '".$_POST["Office2"]."' "; 
$strSQL .= ",Email2 = '".$_POST["Email2"]."' "; 
$strSQL .= "WHERE ID = '".$_GET["ID"]."' "; 
$flgSave = $strConn->Execute($strSQL); 
  
If($flgSave)  
{      
echo("Save Done.");   
} 
else  
{       
echo("Error Save");     
}    

$strConn->Close();    
$strConn = null; 
?>