MPOS / php-mpos

      sleep($this->config['purge']['sleep']);

      $stmt = $this->mysqli->prepare("DELETE FROM $this->table WHERE id > ? AND id <= ? ORDER BY id LIMIT " . $this->config['purge']['shares']);

      $start = microtime(true);

      if ($this->checkStmt($stmt) && $stmt->bind_param('ii', $previous_upstream, $current_upstream) && $stmt->execute()) {

        $affected = $stmt->affected_rows;

      } else {

        return $this->sqlError();

      }

    }

    return true;

  }

    $failed = $this->deleted = 0;

    foreach ($aTokenTypes as $aTokenType) {

      $stmt = $this->mysqli->prepare("DELETE FROM $this->table WHERE (NOW() - time) > ? AND type = ?");

      if (! ($this->checkStmt($stmt) && $stmt->bind_param('ii', $aTokenType['expiration'], $aTokenType['id']) && $stmt->execute())) {

        $failed++;

      } else {

        $this->deleted += $stmt->affected_rows;

      }

    }

    if ($failed > 0) {

      $this->setCronMessage('Failed to delete ' . $failed . ' token types from ' . $this->table . ' table');

    $failed = 0;

    $this->deleted = 0;

    $stmt = $this->mysqli->prepare("DELETE FROM $this->table WHERE time < (NOW() - INTERVAL ? DAY)");

    if (! ($this->checkStmt($stmt) && $stmt->bind_param('i', $days) && $stmt->execute())) {

      $failed++;

    } else {

      $this->deleted += $stmt->affected_rows;

    }

    if ($failed > 0) {

      $this->setCronMessage('Failed to delete ' . $failed . ' notifications from ' . $this->table . ' table');

      return false;