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    SplDoublyLinkedList::push

    (PHP 5 >= 5.3.0, PHP 7, PHP 8)

    SplDoublyLinkedList::push — 双方向リンクリストの末尾に要素を追加する

    説明

    public SplDoublyLinkedList::push(mixed $value): void

    value を双方向リンクリストの末尾に追加します。

    パラメータ

    value

    追加したい値。

    戻り値

    値を返しません。

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    User Contributed Notes 3 notes

    up
    2
    Gilles A
    10 years ago
    Be careful SplStack mode is LIFO (Last In First Out) not FIFO (First in First Out)
    <?php
    // Array (FIFO)
    $stack = array();
    array_push($stack,"orange");
    array_push($stack,"banana");
    array_push($stack,"apple");
    array_push($stack,"raspberry");

    var_dump($stack);
    ?>
    // result

    array (size=4)
    0 => string 'orange' (length=6)
    1 => string 'banana' (length=6)
    2 => string 'apple' (length=5)
    3 => string 'raspberry' (length=9)

    <?php
    // SplStack (LIFO)
    $stack = new SplStack();
    $stack ->push('orange');
    $stack ->push('banana');
    $stack ->push('apple');
    $stack->push('raspberry');

    $stack->rewind();
    while(    $stack->valid()){
    var_dump($stack->current());
    $stack->next();

    }
    ?>
    //result
    string 'raspberry' (length=9)
    string 'apple' (length=5)
    string 'banana' (length=6)
    string 'orange' (length=6)
    up
    1
    chicotec dot asm at gmail dot com
    5 years ago
    You can also push an element at the end of the doubly linked list like in a simple array with square brackets:

    $spl = new SplDoublyLinkedList;

    $spl[] = 1;
    $spl[] = 2;
    $spl[] = 3;
    $spl[] = 4;

    print_r($spl);
    up
    0
    lincoln dot du dot j at gmail dot com
    7 years ago
    $spl = new SplDoublyLinkedList;

    $spl->push(1);
    $spl->push(2);
    $spl->push(3);
    $spl->push(8);
    $spl->push(5);

    print_r($spl);
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