Adds values to the front of the deque

# Ds\Deque::unshift

(PECL ds >= 1.0.0)

Ds\Deque::unshift — Adds values to the front of the deque

### Descrierea

public 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.

### Parametri

`values`

  The values to add to the front of the deque.

  > Notă:

  > Multiple values will be added in the same order that they are passed.

### Valorile întoarse

Nu este întoarsă nici o valoare.

### Exemple

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

`<?php
$deque = new \Ds\Deque([1, 2, 3]);
$deque->unshift("a");
$deque->unshift("b", "c");
print_r($deque);
?>`

Exemplul de mai sus va afișa ceva similar cu:

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