Set a $_GET value

You should not change the $_GET or the GET parameter in the request.
Why do you need to change it?

Why, why not?
If it is possible in basic PHP then it seems to be a allowed way of working.

It's old code, but it works.
Now I need to use the basic, non-CI4-way, $_GET['foo'] to get the updated value.


The other possible solution would be redirect to the same URI with updated params, but that's seems to be a overkill.

Sure, It's better to to manipulate the variable $foo, but I thought the request could be updated with the new Get.