Ds\Map::copy
(PECL ds >= 1.0.0)
Ds\Map::copy — Returns a shallow copy of the map
说明
public Ds\Map::copy
( void
) : 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 ) )