从关联数组PHP删除键

问题描述

我有一个PHP数组，看起来是这样的：

I have an PHP array that looks something like this:

Index              Key        Value
[0]                1       Awaiting for Confirmation
[1]                2       Asssigned
[2]                3       In Progress
[3]                4       Completed
[4]                5       Mark As Spam

在我的var_dump数组值我得到这样的：

When I var_dump the array values i get this:

array(5) { [0]=> array(2) { ["key"]=> string(1) "1" ["value"]=> string(25) "Awaiting for Confirmation" } [1]=> array(2) { ["key"]=> string(1) "2" ["value"]=> string(9) "Asssigned" } [2]=> array(2) { ["key"]=> string(1) "3" ["value"]=> string(11) "In Progress" } [3]=> array(2) { ["key"]=> string(1) "4" ["value"]=> string(9) "Completed" } [4]=> array(2) { ["key"]=> string(1) "5" ["value"]=> string(12) "Mark As Spam" } }

我想删除已完成和标记为垃圾邮件我知道我可以不设置[$阵列[3]，$阵列[4]）会做的伎俩。但问题是，有时索引号可以不同，因此是有办法通过匹配值的名称去掉已完成和标记为垃圾邮件？

I wanted to remove "Completed" and "Mark As Spam" I know I can unset[$array[3],$array[4]) will do the trick. But the problem is that sometime the index number can be different therefore is there a way to remove "completed" and "Mark As Spam" by matching the value name?

感谢这么多提前

推荐答案

您阵列是很奇怪：为什么不直接使用键为指标，而值为...价值？

Your array is quite strange : why not just use the key as index, and the value as... the value ?

那岂不是一个容易得多，如果你的阵列声明如下：

Wouldn't it be a lot easier if your array was declared like this :

$array = array(
    1 => 'Awaiting for Confirmation',
    2 => 'Asssigned',
    3 => 'In Progress',
    4 => 'Completed',
    5 => 'Mark As Spam',
);

这将允许您使用您的键的值作为索引访问数组...

That would allow you to use your values of key as indexes to access the array...

和你能够使用功能上的值进行搜索，比如：

And you'd be able to use functions to search on the values, such as array_search() :

$indexCompleted = array_search('Completed', $array);
unset($array[$indexCompleted]);

$indexSpam = array_search('Mark As Spam', $array);
unset($array[$indexSpam]);

var_dump($array);

更容易比你的数组，不是吗？

Easier than with your array, no ?

结果

相反，你的阵列看起来像这样的：

Instead, with your array that looks like this :

$array = array(
    array('key' => 1, 'value' => 'Awaiting for Confirmation'),
    array('key' => 2, 'value' => 'Asssigned'),
    array('key' => 3, 'value' => 'In Progress'),
    array('key' => 4, 'value' => 'Completed'),
    array('key' => 5, 'value' => 'Mark As Spam'),
);

您将不得不遍历所有条目，来分析值，并取消设置正确的项目：

You'll have to loop over all items, to analyse the value, and unset the right items :

foreach ($array as $index => $data) {
    if ($data['value'] == 'Completed' || $data['value'] == 'Mark As Spam') {
        unset($array[$index]);
    }
}
var_dump($array);

即使这样做，能，它不是那么简单......我坚持：你能不能改变你的阵列的形式，用一个简单的键/值系统正常工作

Even if do-able, it's not that simple... and I insist : can you not change the format of your array, to work with a simpler key/value system ?

这篇关于从关联数组PHP删除键的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持！