Home/ Manual/ ds / deque/ Ds\Deque::unshift

Ds\Deque::unshift

PHP function Edit on GitHub ✎

(PECL ds >= 1.0.0)

Adds values to the front of the deque

Description

Ds\Deque::unshift([mixed $values]): void

Adds values to the front of the deque, moving all the current values forward to make room for the new values.

values: The values to add to the front of the deque.
Note
Multiple values will be added in the same order that they are passed.

Void

php

<?php
$deque = new \Ds\Deque([1, 2, 3]);

$deque->unshift("a");
$deque->unshift("b", "c");

print_r($deque);
?>

The above example will output something similar to:

output

Ds\Deque Object
(
    [0] => b
    [1] => c
    [2] => a
    [3] => 1
    [4] => 2
    [5] => 3
)

Source: reference/ds/ds/deque/unshift.xml · from the official PHP manual (php/doc-en)