php-linked-list/LinkedListNode.php at main · kburton-dev/php-linked-list · GitHub

1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
<?php declare(strict_types=1);

class LinkedListNode
{
    /**
     * @var int
     */
    protected $value;

    /**
     * @var ?LinkedListNode
     */
    protected $next = null;

    /**
     * Create linked list node by supplying value
     *
     * @param $value
     */
    public function __construct($value)
    {
        $this->value = $value;
    }

    /**
     * Get node value
     *
     * @return integer
     */
    public function getValue(): int
    {
        return $this->value;
    }

    /**
     * Get next node
     *
     * @return LinkedListNode|null
     */
    public function getNext(): ?LinkedListNode
    {
        return $this->next;
    }

    /**
     * Set next node
     *
     * @param LinkedListNode $next
     * @return void
     */
    public function setNext(?LinkedListNode $next): void
    {
        $this->next = $next;
    }
}