SplDoublyLinkedList::offsetSet

(PHP 5 >= 5.3.0, PHP 7)

SplDoublyLinkedList::offsetSetSets the value at the specified $index to $newval

Opis

public SplDoublyLinkedList::offsetSet ( mixed $index , mixed $newval ) : void

Sets the value at the specified index to newval.

Parametry

index

The index being set.

newval

The new value for the index.

Zwracane wartości

Nie jest zwracana żadna wartość.

Błędy/Wyjątki

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
4 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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