Image Upload Errorrrr

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PHP

hi all

i have a page which from an input i upload an image and save it to the database.

i tried that code :

$dir="./item/";
$PicUser = $_POST['userfile'];
if (!empty($PicUser))
{
$imgarr=getimagesize($PicUser);
echo $imgarr;
$imgarr=array("100","100","2");
if ($imgarr[0] <= 300 AND $imgarr[1] <= 300)
{
$id=@mysql_result(@mysql_query("select id from shop_item order by id desc"),0,0);
if (!is_uploaded_file ($PicUser))
{
$error_teks=" couldn't be copied !!";
}
if (is_uploaded_file ($PicUser))
{
$desfile="shop_$id.jpg";
move_uploaded_file($PicUser,$dir.$desfile) ;
}   
copy($PicUser, "item/shop_$id.jpg");
$image="item/shop_$id.jpg";
mysql_query("update shop_item set picture='$image' where id='$id'");
}
else
{
$error_teks="Can not upload file . Maximum size is 300x300";
}
}

the path is stored correctly , but the image itself doesn't be uploaded to the server.


Any Help ,please???


Thanks