The result is always 0000-00-00 00:00:00 everytime I post a feed
$sql = "INSERT INTO feed ( feed, created, user_id_fk) VALUES (:feed,:created,:user_id)";
        $stmt = $db->prepare($sql);
        $stmt->bindParam("feed", $feed, PDO::PARAM_STR);
        $stmt->bindParam("user_id", $user_id, PDO::PARAM_INT);
        $created = time();
        $stmt->bindParam("created", $created, PDO::PARAM_INT);
        $stmt->execute();
 
    