public function __construct()
{
if (!self::$instance) {
self::$instance = $this;
echo "New Instance\n</br>";
return self::$instance;
} else {
echo "Old Instance\n</br>";
return self::$instance;
}
}
public function __construct()
{
if (!self::$instance) {
// this is the first crucial line.
self::$instance = $this;
// this is the second crucial line. $instance is instantiated as the object MySQLManager
echo "New Instance<br/>";
return self::$instance;
} else {
echo "Old Instance<br/>";
return self::$instance;
}
}
public function connect($host, $db, $user, $password)
{
if ($this->driver == 'mysql') {
$MM = new MySQLManager();
$MM->setHost($host);
$MM->setDB($db);
$MM->setUserName($user);
$MM->setPassword($password);
$MM->connect();
} elseif ($this->driver == 'pgsql') {
$MM = new PostgreSQLManager();
$MM->setHost($host);
$MM->setDB($db);
$MM->setUserName($user);
$MM->setPassword($password);
$MM->connect();
}
}
