Arkadaşlar ben veritabanı bilgilerimi nereye gireceğim burada yardımcı olacak var mı?



class DB {
static $pdo = null;
static $charset = CHARSET;
static $last_stmt = null;

public static function instance()
{
return
self::$pdo == null ?
self::init() :
self::$pdo;
}

public static function init()
{
self::$pdo = new PDO(
'mysql:host=' . MYSQL_HOST .';dbname=' . MYSQL_DB,
MYSQL_USER,
MYSQL_PASS
);

self::$pdo->exec('SET NAMES `' . self::$charset . '`');
self::$pdo->setAttribute(PDO::ATTR_DEFAULT_FETCH_MODE, PDO::FETCH_OBJ);

return self::$pdo;
}

public static function query($query, $bindings = null)
{
if(is_null($bindings))
{
if(!self::$last_stmt = self::instance()->query($query))
return false;
}
else
{
self::$last_stmt = self::prepare($query);
if(!self::$last_stmt->execute($bindings))
return false;
}

return self::$last_stmt;
}

public static function getVar($query, $bindings = null)
{
if(!$stmt = self::query($query, $bindings))
return false;

return $stmt->fetchColumn();
}

public static function getRow($query, $bindings = null)
{
if(!$stmt = self::query($query, $bindings))
return false;

return $stmt->fetch();
}

public static function get($query, $bindings = null)
{
if(!$stmt = self::query($query, $bindings))
return false;

$result = array();

foreach($stmt as $row)
$result[] = $row;

return $result;
}

public static function exec($query, $bindings = null)
{
if(!$stmt = self::query($query, $bindings))
return false;

return $stmt->rowCount();
}

public static function insert($query, $bindings = null)
{
if(!$stmt = self::query($query, $bindings))
return false;

return self::$pdo->lastInsertId();
}

public static function getLastError()
{
$error_info = self::$last_stmt->errorInfo();

if($error_info[0] == 00000)
return false;

return $error_info;
}

public static function __callStatic($name, $arguments)
{
return call_user_func_array(
array(self::instance(), $name),
$arguments
);
}
}