Ds\Pair::copy
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Ds\Pair::copy — Returns a shallow copy of the pair
参数
此函数没有参数。
返回值
Returns a shallow copy of the pair.
范例
示例 #1 Ds\Pair::copy() example
<?php
$a = new \Ds\Pair("a", 1);
$b = $a->copy();
$a->key = "x";
print_r($a);
print_r($b);
?>
以上例程的输出类似于：
Ds\Pair Object
(
[key] => x
[value] => 1
)
Ds\Pair Object
(
[key] => a
[value] => 1
)
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