[Opgelost] Update query krijg een foutmelding

<?
$id = $_GET['id'];

$select = mysql_query("SELECT * FROM `games` WHERE id='$id'");
$obj = mysql_fetch_assoc($select);
$update = mysql_query("UPDATE games SET aantal=aantal+1 WHERE id = '$obj['id']'");
?>

<?
$id = $_GET['id'];
 
$select = mysql_query("SELECT * FROM `games` WHERE id='$id'");
$obj = mysql_fetch_assoc($select);
$update = mysql_query("UPDATE games SET aantal=aantal+1 WHERE id = '$obj['id']'");
?>