SplDoublyLinkedList::offsetSet

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

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

    Description

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

    Sets the value at the specified index to value.

    Parameters

    index

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

    value

    The new value for the index.

    Return Values

    No value is returned.

    Errors/Exceptions

    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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