SplDoublyLinkedList::offsetSet

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

    SplDoublyLinkedList::offsetSet — Sets the value at the specified $index to $value

    Açıklama

    public SplDoublyLinkedList::offsetSet(?int $index, mixed $value): void

    Sets the value at the specified index to value.

    Bağımsız Değişkenler

    index

    The index being set. If null, the next value will be added after the last item.

    value

    The new value for the index.

    Dönen Değerler

    Hiçbir değer dönmez.

    Hatalar/İstisnalar

    Throws OutOfRangeException when index is out of bounds or when index cannot be parsed as an integer.

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    User Contributed Notes 1 note

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    chanel at lipski-development dot de
    6 years ago
    How to change elements of a SplDoublyLinkedList
    <?php

    function change_elements($list,$old_index,$new_index){

    $tmp1=$list->offsetGet($old_index);
    $tmp2=$list->offsetGet($new_index);
    $list->offsetSet($old_index,$tmp2);
    $list->offsetSet($new_index,$tmp1);

    }

    $list=new SplDoublyLinkedList();
    $list->push("A");
    $list->push("B");
    $list->push("C");

    /*
    OUTPUT
    A
    B
    C
    */

    change_elements($list,0,1);

    /*
    OUTPUT
    B
    A
    C
    */

    ?>
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