/**
* Initialize single MySQLDriver object.
* Singleton pattern implementation.
*
* @return MySQLDriver Single instance of a MySQLDriver object.
*/
public static function getInstance()
{
if (!self::$instance) {
self::$instance = new MySQLDriver();
}
return self::$instance;
}
<?php // all necessary settings are included include 'app/config/init.php'; // class autoloading is started Autoloader::init(); // application registry initializes $registry = new Registry(); // core components loading $registry->session = Session::getInstance(); $registry->db = MySQLDriver::getInstance(); $registry->request = RequestHandler::getInstance(); $registry->dao = new DAOFactory($registry); $registry->router = Router::getInstance($registry); $registry->template = new Template($registry); // application is started $registry->router->loader();
/**
* Connects to a MySQL database
*
* @access public
* @return void
*/
public function connect()
{
try {
self::$_link = mysql_connect($this->host, $this->user, $this->password);
$this->select();
if (self::$_link === false) {
throw new Exception("No he podido conectar al servidor MySQL. ");
}
} catch (Exception $e) {
die($e->getMessage());
}
}