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<Ds\Deque::rotateDs\Deque::shift>
^Ds\DequeLast updated: Mon, 26 Oct 2026

Ds\Deque::set

(PECL ds >= 1.0.0)

Ds\Deque::set — Updates a value at a given index

Description

public function Ds\Deque::set(int $index, mixed $value): void

Updates a value at a given index.

Parameters

index

The index of the value to update.

value

The new value.

Return Values

No value is returned.

Errors/Exceptions

OutOfRangeException if the index is not valid.

Examples

Example #1 Ds\Deque::set() example

<?php
$deque = new \Ds\Deque(["a", "b", "c"]);

$deque->set(1, "_");
print_r($deque);
?>

The above example will output something similar to:

Ds\Deque Object
(
    [0] => a
    [1] => _
    [2] => c
)

Example #2 Ds\Deque::set() example using array syntax

<?php
$deque = new \Ds\Deque(["a", "b", "c"]);

$deque[1] = "_";
print_r($deque);
?>

The above example will output something similar to:

Ds\Deque Object
(
    [0] => a
    [1] => _
    [2] => c
)

<Ds\Deque::rotateDs\Deque::shift>
^Ds\DequeLast updated: Mon, 26 Oct 2026