(PECL ds >= 1.0.0)
Ds\Map::copy — Returns a shallow copy of the map
此函数没有参数。
Returns a shallow copy of the map.
示例 #1 Ds\Map::copy() example
<?php
$map = new \Ds\Map([
"a" => 1,
"b" => 2,
"c" => 3,
]);
print_r($map->copy());
?>以上示例的输出类似于：
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
)
)