Hi,
[I'm going to collect here a bit:]
Stanislav Malyshev wrote:
lexical in the proposal binds to creator's scope, not caller's scope, as
I understood. Anyway, binding to caller's immediate scope doesn't seem
that useful since you could just pass it as a parameter when calling.
Correct and I completely agree.
Chris Stockton wrote:
I am curious if is_callable will be able to detect these?
Yes, as is call_user_func able to call them. (But as I was verifying
that I saw that there was a tiny bug in the code that makes sure the
internal names are not used directly, I will fix that.)
Richard Quadling wrote:
[JS Example]
I'm not sure I would say that there is a reference used there.
I'm no expert, but x, f() and n are all working like normal variables with x
having to look outside of f().
Unless I'm getting confused with "pass by reference".
Yes, shure, ok, it's not a reference in the classical sense BUT the
effect is the same: A change INSIDE the closure changes the variable
outside. The only useful way of doing that in PHP without rewriting the
complete engine is using references - and such things are *already* done
via references - namely global variables: If you import a variable via
$global, in reality you are creating a reference to the actual global
variable - global $foo is actually more or less the same as $foo =&
$_GLOBALS['foo'].
Regards,
Christian
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