$user='root';
		$pass='';
		$db='szlxabt_sze_adb_kotprog';
		$db=new mysqli('localhost', $user, $pass, $db) or die("Unable to connect");

		$sql = "UPDATE item SET ad=".$_POST['ad'].", ap=".$_POST['ap'].", hp=".$_POST['hp'].", cdr=".$_POST['cdr'].", cost=".$_POST['cost']." WHERE itemname = '".$_POST['selectItem']."'";
		echo $sql;
		$db->query($sql);
		$db->close();