Ds\Deque::copy

Returns a shallow copy of the deque

public Ds\Deque Ds\Deque::copy()

Returns a shallow copy of the deque.

This function has no parameters.

A shallow copy of the deque.

Example #1 Ds\Deque::copy example

<?php
$a = new \Ds\Deque([1, 2, 3]);
$b = $a->copy();

$b->push(4);

print_r($a);
print_r($b);
?>

The above example will output something similar to:

Ds\Deque Object
(
    [0] => 1
    [1] => 2
    [2] => 3
)
Ds\Deque Object
(
    [0] => 1
    [1] => 2
    [2] => 3
    [3] => 4
)