Collection intersect(mixed $items)

Collection collapse()

mixed first(callable $callback = null, mixed $default = null) Get the first

string toJson(int $options) Get the collection of items as JSON.

Collection filter(callable $callback = null)

Collection except(mixed $keys)

array __sleep() Prepare the instance for serialization.

mixed last(callable $callback = null, mixed $default = null) Get the last

mixed|array getOriginal(string|null $key = null, mixed $default = null) Get

mixed reduce(callable $callback, mixed $initial = null) Reduce the collection