当前位置： 文江博客话题详情

如何将数组键从大写更改为小写？

发布于 2025-01-07 01:02:42 字数 4986 浏览 0 评论 0原文

我有一个键为大写的数组，我想将它们更改为小写。我该怎么办呢。我尝试这样做，

//$data1 = array();
foreach ($row as $key => $value)
{
    $key = strtolower($str);
    $data1[$key] = $value;
}
$data[] = $data1;

但它不起作用

这是我的数组，它还包含对象，它是从数据库中获取的，请打印所有

Array ( [0] => stdClass Object ( [ID] = > 4 [TUTOR_ID] => 4 [价格] => 25 [标题] => 数学分析简介 [特色] => => 本课程为用户提供了数学分析领域的顺利介绍。 [DATE_ADDED] => 0 [评级] => 2 [订阅者] => Array ( ) [语言] => 数组 ( ) [章节] => 数组 ( [0] => stdClass 对象 ( [ID] => 49 [COURSE_ID] => 4 [START_TIME] => 3982720 [TITLE] => 结论和讨论。 ) [1] => stdClass 对象 ( [ID] =>; 48 [COURSE_ID] => 4 [START_TIME] => 3826718 [DURATION] => 第 23 章 [DESCRIPTION] => 第 23 章[2] => stdClass 对象 ( [ID] =>; [第 47 章] 4 [START_TIME] =>; 3653545 [END_TIME] => 3658238 [持续时间] =>第4200章第22章【描述】=>第22章的描述) [3] => stdClass Object ( [ID] => 46 [COURSE_ID] => 4 [START_TIME] => 3490243 [END_TIME] => 3495917 [DURATION] => 4200 [TITLE] => 第 21 章 [DESCRIPTION] = > 第 21 章的描述 ) [4] => stdClass Object ( [ID] => 45 [COURSE_ID] => 4 [START_TIME] => 3338210 [END_TIME] => 3343938 [DURATION] => 4200 [TITLE] => 第 20 章 [DESCRIPTION] = > 第 20 章的描述 ) [5] => stdClass Object ( [ID] => 44 [COURSE_ID] => 4 [START_TIME] => 3169837 [END_TIME] => 3174154 [DURATION] => 4200 [TITLE] => 第 19 章 [DESCRIPTION] = >第19章的描述）[6] => stdClass Object ( [ID] => 43 [COURSE_ID] => 4 [START_TIME] => 3016815 [END_TIME] => 3020020 [DURATION] => 4200 [TITLE] => 第 18 章 [DESCRIPTION] = >第18章的描述）[7] => stdClass Object ( [ID] => 42 [COURSE_ID] => 4 [START_TIME] => 2858254 [END_TIME] => 2862309 [DURATION] => 4200 [TITLE] => 第 17 章 [DESCRIPTION] = >第17章的描述）[8] => stdClass Object ( [ID] => 41 [COURSE_ID] => 4 [START_TIME] => 2703813 [END_TIME] => 2706641 [DURATION] => 4200 [TITLE] => 第 16 章 [DESCRIPTION] = >第16章的描述）[9] => stdClass Object ( [ID] => 40 [COURSE_ID] => 4 [START_TIME] => 2551822 [END_TIME] => 2555208 [DURATION] => 4200 [TITLE] => 第 15 章 [DESCRIPTION] = > 第 15 章的描述 ) [10] => stdClass Object ( [ID] => 39 [COURSE_ID] => 4 [START_TIME] => 2382407 [END_TIME] => 2387901 [DURATION] => 4200 [TITLE] => 第 14 章 [DESCRIPTION] = > 第 14 章的描述 ) [11] => stdClass Object ( [ID] => 38 [COURSE_ID] => 4 [START_TIME] => 2225619 [END_TIME] => 2231232 [DURATION] => 4200 [TITLE] => 第 13 章 [DESCRIPTION] = >第13章的描述) [12] => stdClass Object ( [ID] => 37 [COURSE_ID] => 4 [START_TIME] => 2064552 [END_TIME] => 2068656 [DURATION] => 4200 [TITLE] => 第 12 章 [DESCRIPTION] = >第12章的描述) [13] => stdClass Object ( [ID] => 36 [COURSE_ID] => 4 [START_TIME] => 1913475 [END_TIME] => 1916306 [DURATION] => 4200 [TITLE] => 第 11 章 [DESCRIPTION] = >第11章的描述) [14] => stdClass Object ( [ID] => 35 [COURSE_ID] => 4 [START_TIME] => 1750950 [END_TIME] => 1756908 [DURATION] => 4200 [TITLE] => 第 10 章 [DESCRIPTION] = > 第 10 章的描述 ) [15] => stdClass Object ( [ID] => 34 [COURSE_ID] => 4 [START_TIME] => 1587965 [END_TIME] => 1592709 [DURATION] => 4200 [TITLE] => 第 9 章 [DESCRIPTION] = > 第 9 章的描述 ) [16] => stdClass Object ( [ID] => 33 [COURSE_ID] => 4 [START_TIME] => 1431054 [END_TIME] => 1435008 [DURATION] => 4200 [TITLE] => 第 8 章 [DESCRIPTION] = > 第 8 章的描述 ) [17] => stdClass Object ( [ID] => 32 [COURSE_ID] => 4 [START_TIME] => 1280421 [END_TIME] => 1283872 [DURATION] => 4200 [TITLE] => 第 7 章 [DESCRIPTION] = > 第 7 章的描述 ) [18] => stdClass Object ( [ID] => 31 [COURSE_ID] => 4 [START_TIME] => 1123068 [END_TIME] => 1128464 [DURATION] => 4200 [TITLE] => 第 6 章 [描述] = > 第 6 章的描述 ) [19] => stdClass Object ( [ID] => 30 [COURSE_ID] => 4 [START_TIME] => 960918 [END_TIME] => 966370 [DURATION] => 4200 [TITLE] => 第 5 章 [DESCRIPTION] = > 第 5 章的描述 ) [20] => stdClass Object ( [ID] => 29 [COURSE_ID] => 4 [START_TIME] => 793943 [END_TIME] => 797123 [DURATION] => 4200 [TITLE] => 第 4 章 [DESCRIPTION] = > 第 4 章的描述 ) [21] => stdClass Object ( [ID] => 28 [COURSE_ID] => 4 [START_TIME] => 638285 [END_TIME] => 641130 [DURATION] => 4200 [TITLE] => 第 3 章 [描述] = > 第 3 章的描述 ) [22] => stdClass 对象 ( [ID] => 27 [COURSE_ID] => 4 [START_TIME] => 479384 [END_TIME] => 483993 [DURATION] => 4200 [TITLE] => 第 2 章 [描述] = > 第 2 章的描述 ) [23] => stdClass 对象 ( [ID] => 26 [COURSE_ID] => 4 [START_TIME] => 320101 [END_TIME] => 325435 [DURATION] => 4200 [TITLE] => 第 1 章 [描述] = > 第 1 章的描述 ) [24] => stdClass Object ( [ID] => 25 [COURSE_ID] => 4 [START_TIME] => 163844 [END_TIME] => 166828 [DURATION] => 2100 [TITLE] => 简介 [DESCRIPTION] =>课程章节的简要描述以及主要概念和内容理论。

原文

I have an array with keys uppercase and i want to change them to lowercase. How can I do that. I tried to do

//$data1 = array();
foreach ($row as $key => $value)
{
    $key = strtolower($str);
    $data1[$key] = $value;
}
$data[] = $data1;

But it is not working

This is my array, it also contains objects, it is a fetch from a database, sry for printing it all

Array ( [0] => stdClass Object ( [ID] => 4 [TUTOR_ID] => 4 [PRICE] => 25 [TITLE] => Introduction Mathematical Analysis [FEATURED] => 1 [DESCRIPTION] => This course provides the user with a smooth introduction in the field of Mathematical Analysis. [DATE_ADDED] => 0 [rating] => 2 [subscribers] => 18 [categories] => Array ( ) [languages] => Array ( ) [chapters] => Array ( [0] => stdClass Object ( [ID] => 49 [COURSE_ID] => 4 [START_TIME] => 3977118 [END_TIME] => 3982720 [DURATION] => 3600 [TITLE] => Conclusions & Questioning [DESCRIPTION] => Wrap-up and Discussions. ) [1] => stdClass Object ( [ID] => 48 [COURSE_ID] => 4 [START_TIME] => 3821895 [END_TIME] => 3826718 [DURATION] => 4200 [TITLE] => Chapter 23 [DESCRIPTION] => Chapter 23\'s Description ) [2] => stdClass Object ( [ID] => 47 [COURSE_ID] => 4 [START_TIME] => 3653545 [END_TIME] => 3658238 [DURATION] => 4200 [TITLE] => Chapter 22 [DESCRIPTION] => Chapter 22\'s Description ) [3] => stdClass Object ( [ID] => 46 [COURSE_ID] => 4 [START_TIME] => 3490243 [END_TIME] => 3495917 [DURATION] => 4200 [TITLE] => Chapter 21 [DESCRIPTION] => Chapter 21\'s Description ) [4] => stdClass Object ( [ID] => 45 [COURSE_ID] => 4 [START_TIME] => 3338210 [END_TIME] => 3343938 [DURATION] => 4200 [TITLE] => Chapter 20 [DESCRIPTION] => Chapter 20\'s Description ) [5] => stdClass Object ( [ID] => 44 [COURSE_ID] => 4 [START_TIME] => 3169837 [END_TIME] => 3174154 [DURATION] => 4200 [TITLE] => Chapter 19 [DESCRIPTION] => Chapter 19\'s Description ) [6] => stdClass Object ( [ID] => 43 [COURSE_ID] => 4 [START_TIME] => 3016815 [END_TIME] => 3020020 [DURATION] => 4200 [TITLE] => Chapter 18 [DESCRIPTION] => Chapter 18\'s Description ) [7] => stdClass Object ( [ID] => 42 [COURSE_ID] => 4 [START_TIME] => 2858254 [END_TIME] => 2862309 [DURATION] => 4200 [TITLE] => Chapter 17 [DESCRIPTION] => Chapter 17\'s Description ) [8] => stdClass Object ( [ID] => 41 [COURSE_ID] => 4 [START_TIME] => 2703813 [END_TIME] => 2706641 [DURATION] => 4200 [TITLE] => Chapter 16 [DESCRIPTION] => Chapter 16\'s Description ) [9] => stdClass Object ( [ID] => 40 [COURSE_ID] => 4 [START_TIME] => 2551822 [END_TIME] => 2555208 [DURATION] => 4200 [TITLE] => Chapter 15 [DESCRIPTION] => Chapter 15\'s Description ) [10] => stdClass Object ( [ID] => 39 [COURSE_ID] => 4 [START_TIME] => 2382407 [END_TIME] => 2387901 [DURATION] => 4200 [TITLE] => Chapter 14 [DESCRIPTION] => Chapter 14\'s Description ) [11] => stdClass Object ( [ID] => 38 [COURSE_ID] => 4 [START_TIME] => 2225619 [END_TIME] => 2231232 [DURATION] => 4200 [TITLE] => Chapter 13 [DESCRIPTION] => Chapter 13\'s Description ) [12] => stdClass Object ( [ID] => 37 [COURSE_ID] => 4 [START_TIME] => 2064552 [END_TIME] => 2068656 [DURATION] => 4200 [TITLE] => Chapter 12 [DESCRIPTION] => Chapter 12\'s Description ) [13] => stdClass Object ( [ID] => 36 [COURSE_ID] => 4 [START_TIME] => 1913475 [END_TIME] => 1916306 [DURATION] => 4200 [TITLE] => Chapter 11 [DESCRIPTION] => Chapter 11\'s Description ) [14] => stdClass Object ( [ID] => 35 [COURSE_ID] => 4 [START_TIME] => 1750950 [END_TIME] => 1756908 [DURATION] => 4200 [TITLE] => Chapter 10 [DESCRIPTION] => Chapter 10\'s Description ) [15] => stdClass Object ( [ID] => 34 [COURSE_ID] => 4 [START_TIME] => 1587965 [END_TIME] => 1592709 [DURATION] => 4200 [TITLE] => Chapter 9 [DESCRIPTION] => Chapter 9\'s Description ) [16] => stdClass Object ( [ID] => 33 [COURSE_ID] => 4 [START_TIME] => 1431054 [END_TIME] => 1435008 [DURATION] => 4200 [TITLE] => Chapter 8 [DESCRIPTION] => Chapter 8\'s Description ) [17] => stdClass Object ( [ID] => 32 [COURSE_ID] => 4 [START_TIME] => 1280421 [END_TIME] => 1283872 [DURATION] => 4200 [TITLE] => Chapter 7 [DESCRIPTION] => Chapter 7\'s Description ) [18] => stdClass Object ( [ID] => 31 [COURSE_ID] => 4 [START_TIME] => 1123068 [END_TIME] => 1128464 [DURATION] => 4200 [TITLE] => Chapter 6 [DESCRIPTION] => Chapter 6\'s Description ) [19] => stdClass Object ( [ID] => 30 [COURSE_ID] => 4 [START_TIME] => 960918 [END_TIME] => 966370 [DURATION] => 4200 [TITLE] => Chapter 5 [DESCRIPTION] => Chapter 5\'s Description ) [20] => stdClass Object ( [ID] => 29 [COURSE_ID] => 4 [START_TIME] => 793943 [END_TIME] => 797123 [DURATION] => 4200 [TITLE] => Chapter 4 [DESCRIPTION] => Chapter 4\'s Description ) [21] => stdClass Object ( [ID] => 28 [COURSE_ID] => 4 [START_TIME] => 638285 [END_TIME] => 641130 [DURATION] => 4200 [TITLE] => Chapter 3 [DESCRIPTION] => Chapter 3\'s Description ) [22] => stdClass Object ( [ID] => 27 [COURSE_ID] => 4 [START_TIME] => 479384 [END_TIME] => 483993 [DURATION] => 4200 [TITLE] => Chapter 2 [DESCRIPTION] => Chapter 2\'s Description ) [23] => stdClass Object ( [ID] => 26 [COURSE_ID] => 4 [START_TIME] => 320101 [END_TIME] => 325435 [DURATION] => 4200 [TITLE] => Chapter 1 [DESCRIPTION] => Chapter 1\'s Description ) [24] => stdClass Object ( [ID] => 25 [COURSE_ID] => 4 [START_TIME] => 163844 [END_TIME] => 166828 [DURATION] => 2100 [TITLE] => Introductinon [DESCRIPTION] => A brief description of the course chapter's taken one by one along with the main notions and theories. ) ) ) )

如果你对这篇内容有疑问，欢迎到本站社区发帖提问 参与讨论，获取更多帮助，或者扫码二维码加入 Web 技术交流群。

扫码二维码加入Web技术交流群

发布评论

需要 登录 才能够评论， 你可以免费 注册 一个本站的账号。

评论（1）

何其悲哀 2025-01-14 01:02:42
$data = array_change_key_case($data1,CASE_LOWER);

http://www.php.net/manual/en /function.array-change-key-case.php

$data = array_change_key_case($data1,CASE_LOWER);

http://www.php.net/manual/en/function.array-change-key-case.php

回复 原文
~没有更多了~

关于作者

时常饿

暂无简介

文章
评论
25 人气
发私信

相关话题

更多

热门标签

操作系统 程序设计 IT运维 Linux系统管理 JavaScript 服务器应用 solaris C/C++ PHP Shell BSD Vue.js aix Oracle Python HTML 系统管理 HTML5 CSS 前端
更多

推荐作者

紫罗兰の梦幻

文章 0 评论 0

-2134

文章 0 评论 0

liuxuanli

文章 0 评论 0

意中人

文章 0 评论 0

○愚か者の日

文章 0 评论 0

xxhui

文章 0 评论 0

更多

友情链接

文江博客
    我们使用 Cookies 和其他技术来定制您的体验包括您的登录状态等。通过阅读我们的 隐私政策 了解更多相关信息。 单击 接受 或继续使用网站，即表示您同意使用 Cookies 和您的相关数据。
    原文