Ds\Stack::copy

(PECL ds >= 1.0.0)

Ds\Stack::copy — Returns a shallow copy of the stack

public Ds\Stack::copy ( void ) : Ds\Stack

Returns a shallow copy of the stack.

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Returns a shallow copy of the stack.

Example #1 Ds\Stack::copy() example


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

// Updating the copy doesn't affect the original
$b->push(4);

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

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