Limit user activity per month with PDO

<?PHP
require ("include/db.inc.php");
$user_id = 1;
$search = $db->prepare("SELECT `searched` FROM `search` WHERE `user_id` =:user_id");
$search->bindValue(':user_id', $user_id, PDO::PARAM_INT);
$search->execute();
$result = $search->fetch(PDO::FETCH_ASSOC);
echo "<pre>", print_r($result), "</pre><br>";
if ($result['searched'] >= 10){
    echo 'you have reached your search limit for this month<br>';
}
$addsearch = $db->prepare("UPDATE `evomap`.`search` SET `searched` = :searched + 1 WHERE `search`.`id` =:user_id;");
$addsearch->bindValue(':user_id', $user_id, PDO::PARAM_INT);
$addsearch->bindValue(':searched', $result['searched'], PDO::PARAM_INT);
$addsearch->execute();
echo 'DEBUGGING';
echo'<br><pre>', print_r($db->errorInfo()), '<pre>';
echo "Number of results: ", $search->rowCount(), "<br>";
?>