MPOS / php-mpos

      ON b.account_id = a.id

      WHERE b.height <= ?

      ORDER BY height DESC LIMIT ?");

    if ($this->checkStmt($stmt) && $stmt->bind_param("ii", $iHeight, $limit) && $stmt->execute() && $result = $stmt->get_result())

      return $this->memcache->setCache(__FUNCTION__ . $iHeight . $limit, $result->fetch_all(MYSQLI_ASSOC), 5);

    return $this->sqlError();

  }

  /**

      WHERE account_id = ? AND worker_name != 'unknown'

      GROUP BY finder

      ORDER BY solvedblocks DESC LIMIT ?");

    if ($this->checkStmt($stmt) && $stmt->bind_param("ii", $account_id, $limit) && $stmt->execute() && $result = $stmt->get_result())

      return $this->memcache->setCache(__FUNCTION__ . $account_id . $limit, $result->fetch_all(MYSQLI_ASSOC), 5);

    return $this->sqlError();

  }

  /**