Allow `int` and `null` as possible types for `$key` in `Option::fromA…

…rraysValue` (#74)

PHP 8.3 support

Update README.md

Drop PHP versions less than 7.2.5 and support PHP 8.2 (#68)

Removed old CI hack for PHP 8.1

Drop support for PHP 5 and add support for PHP 8.1 (#59)

Use PHPUnit ^9.3 on PHP 8.0

Static closures

PHP 8 Support (#55)

Fixed CS