Quote:
Originally Posted by cachepl0x
Great tutorial. It actually looks a lot like the way I did my singleton pattern.. lol 
Here it is:
PHP Code:
class Config
{
const host = "localhost";
const user = "root";
const pass = "pass";
const name = "name";
}
final class Singleton extends Config
{
protected static $connection;
protected static $database = null;
protected function Singleton () { }
protected function __clone () { }
static function Prepare()
{
self::$connection = new mysqli
(
parent::host,
parent::user,
parent::pass,
parent::name
);
if (mysqli_connect_errno())
{
printf
(
"Connection Error: %s\n ", mysqli_connect_error()
);
} else { echo "Databse resource found."; }
}
public static function Instance()
{
if (!isset(
self::$database)) {
self::$database = self::Prepare();
}
return self::$database;
}
}
$instance = Singleton::Instance();
|
great tut.... how about this? removing the extra method prepare() and moving the code into the __cunstruct
class Config
{
const DB_HOST = "localhost";
const DB_USERNAME = "uuu";
const DB_PASSWORD = "pppp";
const DB_NAME = "bbbb";
}
final class Database extends Config
{
protected static $dbConnection;
protected static $database = NULL;
protected function __construct () {
self::$dbConnection = new mysqli
(
parent::DB_HOST,
parent::DB_USERNAME,
parent::DB_PASSWORD,
parent::DB_NAME
);
if (mysqli_connect_errno())
{
throw new Exception('Unable to connect to database');
}
}
protected function __clone () { }
public static function getInstance()
{
if (!isset(
self::$database)) {
self::$database = new Database();
}
return self::$database;
}
}