laravel-5

Collections 212
.
1 $random = $collection->random(3);
2
3 $random->all();
4
5 // [2, 4, 5] - (retrieved randomly)
reduce() {#collection-method}
The reduce method reduces the collection to a single value, passing the result of each iteration into
the subsequent iteration:
.
1 $collection = collect([1, 2, 3]);
2
3 $total = $collection->reduce(function ($carry, $item) {
4 return $carry + $item;
5 });
6
7 // 6
The value for $carry on the first iteration is null; however, you may specify its initial value by
passing a second argument to reduce:
.
1 $collection->reduce(function ($carry, $item) {
2 return $carry + $item;
3 }, 4);
4
5 // 10
reject() {#collection-method}
The reject method filters the collection using the given callback. The callback should return true
for any items it wishes to remove from the resulting collection: