last(callable $callback = null, $default = null)
The last method is the logical opposite of the first method, and is used to get the last item in a collection, or to get the last item in a collection that matches a certain criteria. A $callback can be supplied to return the last item in the collection that matches a given truth test. Additionally, an optional $default argument can be passed that will be returned if there are no items that match the given criteria.
The following example shows how to get the last item in a collection:
1<?php
2
3use Illuminate\Support\Collection;
4
5// Create a new collection instance.
6$collection = new Collection([
7 'first', 'second', 'third'
8]);
9
10// third
11$value = $collection->last();
If the collection is empty (having no items), the last method will return null:
1<?php
2
3use Illuminate\Support\Collection;
4
5// Create an empty collection.
6$collection = new Collection([]);
7
8// null
9$value = $collection->last();
The $default parameter cannot be used when trying to get the last item in an empty collection:
1<?php
2
3use Illuminate\Support\Collection;
4
5// Create an empty collection.
6$collection = new Collection([]);
7
8// null
9$value = $collection->last(null, 'default-value');
A $callback argument can be passed to provide a truth test when evaluating which item should be returned last:
1<?php
2
3use Illuminate\Support\Collection;
4
5// Create a new collection instance.
6$collection = new Collection([
7 'first', 'second', 'third'
8]);
9
10// second
11$value = $collection->last(function($key, $value) {
12 return strlen($value) > 5;
13});
The $default parameter can be used in conjunction with the $callback parameter to return a default value when there are no items in a collection that pass the given truth test:
1<?php
2
3use Illuminate\Support\Collection;
4
5// null
6$value = $collection->last(function($key, $value) {
7 return strlen($value) > 10;
8});
9
10// default-value
11$value = $collection->last(function($key, $value) {
12 return strlen($value) > 10;
13}, 'default-value');
∎