ขอถามเรื่อง move_upload_file หน่อยครับ ทำไมเวลา ผมอัพผ่านโอส แล้ว ใช้ไม่ได้อะครับ

<?php
class FileUpload
{
	public $name;

	function __construct($name)
	{
		$this->name = $name;
	}
	function __toString()
	{
		return "<input type='file' name='{$this->name}'/>";
	}
}


?>

<?php
include_once 'login/Form.php';
include_once 'login/Label.php';
include_once 'login/TextField.php';
include_once 'login/TextArea.php';
include_once 'login/Fileupload.php';
include_once 'login/ButtonSubmit.php';

$form = new Form();
$Name = new Label('ชื่อสินค้า	');
$Detail = new Label('รายละเอียด	');
$price = new Label('ราคา	');
$Image = new Label('ภาพสินค้า	');


$txtName = new TextField('name');
$txtDetail = new TextArea('detail');
$txtDetail->cols = 50;
$txtDetail->rows = 5;

$txtprice = new TextFieldPrice('price');
$fileImage = new FileUpload('image');
$submitButton = new ButtonSubmit('Save');


echo '<h3>บันทึกข้อมูลสินค้า</h3>';
echo '<hr />';
echo $form->open('product_save.php');
echo $Name . $txtName.'<br/>';
echo $Detail .$txtDetail.'<br/>';
echo $price .$txtprice.'<br/>';
echo $Image .$fileImage.'<br>';
echo $submitButton;
echo $form->close();
?>

include_once 'Database/db.php';
include_once '../connect.php';

$rs = $db->insert('product',array(

	'name' => $_POST['name'],
	'detail' => $_POST['detail'],
	'price' =>	$_POST['price'],
	'image' =>	$_FILES['image']['name'],
	'created_date'=> date('Y-m-d h:i:s')
	));
	

	if($rs)
	{
		$tmp_name = $_FILES['image']['tmp_name'];
		$file_name = $_FILES['image']['name'];

			echo $tmp_name."<br>";
			echo $file_name."<br>";
			echo "5555";





		if(move_uploaded_file($tmp_name,"../upload/".$file_name))
		{
			echo $tmp_name;
			header('location: index.php?url=product.php');
			
		}

	}