public static function connect()
{
if (!self::$connection) {
$db_host = getenv(self::DB_HOST);
$db_user = getenv(self::DB_USER);
$db_pwd = getenv(self::DB_PWD);
$db_name = getenv(self::DB_NAME);
$db_port = getenv(self::DB_PORT);
self::$connection = new PDO("mysql:host={$db_host};port={$db_port};dbname={$db_name};charset=utf8", $db_user, $db_pwd);
}
return self::$connection;
}
/**
* Метод, закрывающий соединение с БД
*/
public function close()
{
self::$connection = null;
}
