Am 15.03.2020 um 17:47 schrieb tyson andre <tysonandre...@hotmail.com>:
> {
> let $myObject = new MyClass(), $flag = true;
> $myObject->process($flag);
> }
> // Accessing or setting $myObject or $flag outside a different let is an
> E_COMPILE_ERROR
> // because it was declared anywhere else in the function body
> // as a let statement
> $myObject->doSomething();
What you are suggesting is that a let statement would switch PHP to an
altogether different mode where function-scoped and explicit global variables
were suddenly disallowed and an error within that function (or only after the
let?). What about variables not declared with let, would they still function
normally?
That sounds like a bad idea to me as I'd have to look at the whole function to
see if there is a let somewhere to determine the function's/variable's mode.
I think that 'let' would only be feasible in a similar fashion to JavaScript:
The lexically scoped variable disappears as if the whole block was not there.
How complicated something like that would be to implement I cannot judge and I
haven't spent a lot of time thinking about other problems of this proposal.
- Chris
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