Returns a shallow copy of the deque
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    Ds\Deque::copy

    (PECL ds >= 1.0.0)

    Ds\Deque::copy — Returns a shallow copy of the deque

    Description

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

    Returns a shallow copy of the deque.

    Parameters

    This function has no parameters.

    Return Values

    A shallow copy of the deque.

    Examples

    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
)