$collection = collect([1, 2, 3, 4]);
$filtered = $collection->filter(function ($value, $key) {
return $value > 2;
});
$filtered->all();
// [3, 4]$collection = collect([1, 2, 3]);
$total = $collection->reduce(function ($carry, $item) {
return $carry + $item;
});
// 6
$total = $collection->reduce(function ($carry, $item) {
return $carry + $item;
}, 4);
// 10 | where 4 is a initial value$collection = collect([1, 2, 3, 4, 5]);
$groups = $collection->split(3);
$groups->toArray();
// [[1, 2], [3, 4], [5]]