On Thu, Sep 3, 2020 at 10:35 AM David Rodrigues <[email protected]>
wrote:
> Do you think that it could be proxied? I mean, optimize foreach
> (array_keys()...) syntax to not call array_keys() in fact, but a optimized
> version of foreach to handle key only. I don't know it opcache could do
> that, and if it already does.
>
>
I wouldn't use the word "proxied", but yes. In my mind the compiler would
see:
foreach(\array_keys($arr) as $key) {
and quietly transform that into:
foreach ($arr as $key => $_unusedVariableNameThatIsntEvenSpilledToTheScope)
{
Thus not iterating the array twice and creating a temporary array of key
names.
-Sara
