On Thu, Sep 3, 2020 at 10:35 AM David Rodrigues <david.pro...@gmail.com> 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