static function getInstance() { if (self::$instance == null) { $obj = new Config(); $obj->setHost($_ENV["DB_HOST"]); $obj->setUser($_ENV["DB_USER"]); $obj->setPass($_ENV["DB_PASS"]); $obj->setDatabase($_ENV["DB_NAME"]); $obj->setProvider($_ENV["DB_PROVIDER"]); $obj->setPort($_ENV["DB_PORT"]); self::$instance = $obj; } return self::$instance; }