PHP split an iterable into fixed-size chunks

<?php
function chunk_iterable(iterable $items, int $size): Generator
{
    if ($size < 1) {
        throw new InvalidArgumentException('Chunk size must be at least 1');
    }
    $batch = [];
    foreach ($items as $item) {
        $batch[] = $item;
        if (count($batch) === $size) {
            yield $batch;
            $batch = [];
        }
    }
    if ($batch !== []) {
        yield $batch;
    }
}