ช่วยด้วยค่ะ error You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near 'item_stock='5' where item_id='00028'' at line 6

<?
$id_edit=$_POST[id_edit];
$name=$_POST[name];
$ref_cate_id=$_POST[ref_cate_id];
$detail=$_POST[detail];
$price=$_POST[price];
$photo=$_POST[photo];
$stock=$_POST[stock];
$stock1=$_POST[stock1];

$number=$stock+$stock1;

$fileupload=$_FILES['fileupload']['tmp_name'];
$fileupload_name=$_FILES['fileupload']['name'];
$fileupload_size=$_FILES['fileupload']['size'];
$fileupload_type=$_FILES['fileupload']['type'];

include("../../Connections/config.inc.php") ;
if ($chkdel=="1") {
		$sql3="update item set item_image=NULL where item_id ='$id_edit' ";
		$result3=mysql_db_query($dbname,$sql3);
		@unlink("photo/$photo_del");
}

if ($fileupload) {

	$array_last=explode(".",$fileupload_name);
	$c=count($array_last)-1; 
	$lastname=strtolower($array_last[$c]) ;
	
	if ($lastname=="gif" or $lastname=="jpg" or $lastname=="jpeg") {

		$photoname=$id_edit.".".$lastname;
		copy($fileupload,"photo/".$photoname);

		$sql3="update item set item_image='$photoname' where item_id ='$id_edit' ";
		$result3=mysql_db_query($dbname,$sql3);
	} 
	@unlink($fileupload);
} 

$sql="update item set  
			ref_cate_id='$ref_cate_id',
			item_name='$name',
			item_detail='$detail',
			item_price='$price'
			item_stock='$number' 
	        where item_id='$id_edit' ";
$result=mysql_db_query($dbname,$sql);

if ($result) {
	echo "<H3>แก้ไข สินค้าเรียบร้อยแล้ว</H3>";
//	echo "[ <A HREF=admin_product.php>กลับหน้าหลัก</A> ] ";
	echo "<meta http-equiv=refresh content=1;URL=admin_product_editdel.php>";
} else {
	echo "<H3>ERROR : ไม่สามารถแก้ไขสินค้าได้</H3>";
	echo "<meta http-equiv=refresh content=1;URL=admin_product_editdel.php>";
}
mysql_close();
?>