Message: Creation of dynamic property CI_URI::$config is deprecated

 Beberapa error ketika upgrade Codeigniter dari PHP 5.6 ke PHP versi 8

1. Message: Creation of dynamic property CI_URI::$config is deprecated  Solusinya : Tambahkan sebelum nama Class #[\AllowDynamicProperties] Pada file URI.ph
2. Message: Creation of dynamic property MY_Router::$uri is deprecated Solusinya : Tambahkan sebelum nama Class #[\AllowDynamicProperties] Pada file router.ph
3. Message: strpos(): Passing null to parameter #2 ($needle) of type string is deprecated
4. 
   

1. Message: Creation of dynamic property CI_URI::$config is deprecated

            Solusi : #[\AllowDynamicProperties] Pada file URI.ph

1. Message: Creation of dynamic property MY_Router::$uri is deprecated