> * If PHP had either convention or special handling for _ or $_ as a “ignore 
> this” destination, I wouldn’t have made the proposal.  However, it doesn’t; _ 
> can (apparently!) be a constant, and is also a function, and $_ has no 
> special handling (and I bet it’s actually used to contain values that are 
> used in at least one application).

Saw this today and the list() each() made me think of this thread: 
https://www.dyn-web.com/php/arrays/iterate/

With you on void for same reason and what if the double-arrow was all that was 
needed, like the empty + comma in the link:

foreach ($arr as $key =>)

Cheers,
Josh

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