laravel mapSpread 例子

$collection = collect(range(1, 9));

$chunks = $collection->chunk(2);

$labeld = $chunks->mapSpread(function ($odd, $even) {

    return "Odd: {$odd} Even: {$even}";

});

$numbers = collect([3, 5, 7]);

$words = collect(['three', 'five', 'seven']);

$results = $numbers->zip($words)

    ->mapSpread(function ($number, $word) {

        return $number . '=' . $word;

    });

dd($labeld->toArray(), $results->toArray());