[PHP-DEV] Countable Type Hint

[Craig Duncan]

Hi everybody

Following on from the recent rfc for *count()* (
https://wiki.php.net/rfc/counting_non_countables) and the one for *iterable*
(https://wiki.php.net/rfc/iterable) it would be useful if there was a
`countable` type hint:

function foo(countable $thing)
{
    if (count($thing) > 0) {
        # ...
    }
}

However I think this it is much more useful when combined with *iterable*,
maybe something like (arraylike = iterable && countable)

function handle_records(arraylike $result)
{
    if (count($result) === 0) {
        handle_empty();
        return;
    }

    foreach ($result as $value) {
        handle_value($value);
    }
}

Does anybody have any thoughts on this?
Should I bring *countable* to RFC?
Should I bring *arraylike* to RFC?

Thanks,
Craig