Deprecated: Optional parameter $keys declared before required parameter $cms_id is implicitly treated as a required parameter in /home/www/dev/work/class/blog/CmsKey.php on line 75

Deprecated: Creation of dynamic property lvesu\lvesu\controller\blog\php::$title is deprecated in /home/www/dev/work/website/lvesu/class/controller/blog/php.php on line 28

Deprecated: Creation of dynamic property lvesu\lvesu\controller\blog\php::$outlink is deprecated in /home/www/dev/work/website/lvesu/template/blog/cms/php.manual.tpl on line 2

Deprecated: Creation of dynamic property lvesu\lvesu\controller\blog\php::$status is deprecated in /home/www/dev/work/website/lvesu/template/blog/index.head.php on line 2
PHP - Manual: Ds\Pair::copy - 互联网笔记

略微加速

PHP官方手册 - 互联网笔记

PHP - Manual: Ds\Pair::copy

2025-05-13

Ds\Pair::copy

(No version information available, might only be in Git)

Ds\Pair::copyReturns a shallow copy of the pair

说明

public Ds\Pair::copy(): Ds\Pair

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.

示例

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);
?>

以上示例的输出类似于:

Ds\Pair Object
(
    [key] => x
    [value] => 1
)
Ds\Pair Object
(
    [key] => a
    [value] => 1
)
添加备注

用户贡献的备注

此页面尚无用户贡献的备注。

官方地址:https://www.php.net/manual/en/ds-pair.copy.php

冷却塔厂家 广告
中文GPT4.0无需注册 广告
北京半月雨文化科技有限公司.版权所有 京ICP备12026184号-3