class dbFunctions {

    private $userSelect = "userSelect";
    private $passSelect = "XXXXX";
    private $userDelete = "userDelete";
    private $passDelete = "XXXXX";

    protected function connectSelect() {
        $dsn = $this->dsn();
        $this->pdo = new PDO($dsn, $this->userSelect, $this->passSelect, $this->options);

        return $this->pdo;
    }

    protected function connectDelete() {
        $dsn = $this->dsn();
        $this->pdo = new PDO($dsn, $this->userDelete, $this->passDelete, $this->options);

        return $this->pdo;
    }

    public function selectCount($query, $values = []) {

        $result = $this->connectSelect()->prepare($query);
        $result->execute($values);
        $exec = $result->fetch();

        $count = (int)$exec['total'];

        return $count;
    }
}

class dbFunctions {

    private $userSelect = "userSelect";
    private $passSelect = "XXXXX";
    private $userDelete = "userDelete";
    private $passDelete = "XXXXX";

    private $selectInstance = null;
    private $deleteInstance = null;

    protected function connectSelect() {
        if ($this->selectInstance === null) {
            $dsn = $this->dsn();
            $this->selectInstance = new PDO($dsn, $this->userSelect, $this->passSelect, $this->options);
        }
        return $this->selectInstance;
    }

    protected function connectDelete() {
        if ($this->deleteInstance === null) {
            $dsn = $this->dsn();
            $this->deleteInstance = new PDO($dsn, $this->userDelete, $this->passDelete, $this->options);
        }
        return $this->deleteInstance;
    }

    public function selectCount($query, $values = []) {

        $result = $this->connectSelect()->prepare($query);
        $result->execute($values);
        $exec = $result->fetch();

        $count = (int)$exec['total'];

        return $count;
    }
}