Ds\Map::copy

(PECL ds >= 1.0.0)

Ds\Map::copy — Returns a shallow copy of the map

说明

public Ds\Map::copy ( ) : Ds\Map

Returns a shallow copy of the map.

参数

此函数没有参数。

返回值

Returns a shallow copy of the map.

范例

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


<?php
$map = new \Ds\Map([
    "a" => 1,
    "b" => 2,
    "c" => 3,
]);

print_r($map->copy());
?>

以上例程的输出类似于：

Ds\Map Object
(
    [0] => Ds\Pair Object
        (
            [key] => a
            [value] => 1
        )

    [1] => Ds\Pair Object
        (
            [key] => b
            [value] => 2
        )

    [2] => Ds\Pair Object
        (
            [key] => c
            [value] => 3
        )

)

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