Mysql Class

<?php

require_once 'constants.php';

/**
 * Description of Mysql
 *
 * @author Administrateur
 */
class Mysql extends PDO {

    private $con;

    public function __construct() {
        try {

            $this->con = parent::__construct(DB_DSN, DB_USER, DB_PASS);

            if ($this->getAttribute(PDO::ATTR_DRIVER_NAME) == DB_TYPE)

                $this->setAttribute(PDO::MYSQL_ATTR_USE_BUFFERED_QUERY, TRUE);


            return $this->con;

        } catch (PDOException $e) {

            die('Error:' . $e->getMessage());
        }
    }

    public function select($reqSelect) {
        try {
            $this->con = parent::beginTransaction();
            $result = parent::prepare($reqSelect);
            $result->execute();

            //$this->con = parent::commit();

            $this->con = parent::rollBack();

            return $result;

            $result->closeCursor();
        } catch (Exception $e) {
            die('Error:' . $e->getMessage());
        }
    }

    public function selectAll($reqSelect) {
        $result = parent::prepare($reqSelect);
        $result->execute();

        $resultat = $result->fetchAll();

        return $resultat;

        $result->closeCursor();
    }

}