How can I manipulate input values?

[benfiratkaya]

I have code like that:

function input($index = null, $defaultValue = null, ...$methods)
    {
        if ($index !== null) {
            return request()->getInputHandler()->value($index, $defaultValue, ...$methods);
        }

        return request()->getInputHandler();
    }

if (input("stockStatus") == 0) {
    $_POST["stock"] = -1;
}
echo input("stock");

I want to make "stock" value "-1" when "stockStatus" is 0. But the "stock" value does not change.

How can I set post value?

[skipperbent]

You are not supposed to change super global variables, they contain values parsed and specific to the the request so that is not supported. If you need to manipulate the values and use them later on in your code, you should move them to your own custom variables. The request helper class supports custom variables and is available on everywhere, so you could always take advantage of that:

request()->stock = input('stockStatus', 0);

request()->stock // equals 0