php v8 and string offset with curly brace not supported

```
[elvis@vivo komodo_scripts]$ php genkomodo.php 
PHP Fatal error:  Array and string offset access syntax with curly braces is no longer supported in /home/elvis/dev/komodo_scripts/genkomodo.php on line 28

[elvis@vivo komodo_scripts]$ php --version
PHP 8.0.5 (cli) (built: Apr 27 2021 18:07:13) ( NTS )
Copyright (c) The PHP Group
Zend Engine v4.0.5, Copyright (c) Zend Technologies

```