define("DB_HOST","localhost");
define("DB_LOGIN","root");
define("DB_PASSWORD","");
define("DB_NAME","db_name");
class DB {
private $mysql;
function __construct($host,$login,$password,$db_name) {
$this->mysql=mysqli_connect($host,$login,$password,$db_name);
}
}
$DB=new DB(DB_HOST,DB_LOGIN,DB_PASSWORD,DB_NAME);