如何在php中删除数组键名称中的空格?

2021-12-26 00:00:00 arrays multidimensional-array loops foreach php

我正在尝试删除数组键名称中的所有空格，即 str_replace(' ','',$value) (或者最坏的转换场景将它们替换为下划线 (_) )

I am trying to remove all spaces in array keys names i.e. str_replace(' ','',$value) (or worst cast scenario replace them with underscores (_) )

并且我正在尝试在我的多维数组的最深层次(如下所示)执行此操作(因为其他层/层次没有空格(感谢上帝！))

and I am trying to do this at the deepest level (shown below) of my multidimensional array (because other layers/levels don't have spaces (THANK GOD!))

[...]

[ownPagestoriesbystorytype] => Array
                        (
                            [type] => pagestoriesbystorytype
                            [object_id] => 12365478954
                            [metric] => page_stories_by_story_type
                            [end_time] => 1386057600
                            [period] => 86400
                            [ownValues] => Array
                                (
                                    [type] => pagestoriesbystorytypemetrics
                                    [fan] => 1913
                                    [page post] => 153
                                    [user post] => 24
                                )

                        )

                    [ownPagestorytellersbystorytype] => Array
                        (
                            [type] => pagestorytellersbystorytype
                            [object_id] => 12365478954
                            [metric] => page_storytellers_by_story_type
                            [end_time] => 1386057600
                            [period] => 86400
                            [ownValues] => Array
                                (
                                    [type] => pagestorytellersbystorytypemetrics
                                    [fan] => 1902
                                    [page post] => 137
                                    [user post] => 9
                                )

                        )

[...]

到目前为止，我的尝试没有结果:

So far my attempts have been fruitless :

[...]
if (is_array($value))
        {

            $keys = str_replace(' ','',array_keys($value));
            $values = array_values($value);
            $value = array_combine($keys,$values);
        }
[...]


[...]

foreach ($value as $k => $v)
            {
                $b = str_replace(' ','',$k);
                $value[$b] = $value[$k];
                unset ($value[$k]);

            }

[...]

上面的代码不起作用，但是如果我把 print_r($value);在循环结束时，您可以清楚地看到空格正在被删除，只是不知何故最终结果以空格结束(STILL).

The codes above do not work, however if I put print_r($value); at the end of the loop you can clearly see that spaces are being removed, just somehow the end result ends up being with spaces (STILL).

整个循环如下所示:

for ($i=0;$i<count($results);$i++)
{

    for ($j=0;$j<count($results[$i]);$j++)
    {
    foreach($results[$i][$j] as $key => $value)
    {
        $typee = ['type' => strtolower(str_replace('_','',$results[$i][$j]['metric']))];
        array_insert($results[$i][$j],$typee,0);
        if (is_array($value))
        {

            $keys = str_replace(' ','',array_keys($value));
            $values = array_values($value);
            $value = array_combine($keys,$values);

            $type = ['type' => strtolower(str_replace('_','',$results[$i][$j]['metric']))."metrics"];
            array_insert($results[$i][$j]['value'],$type,0);
            $results[$i][$j]['ownValues'] = $results[$i][$j][$key];
            unset($results[$i][$j][$key]);


        }
    }
    }
}

你可以在这里看到整个数组的样子:

And you can see how the whole array looks like here:

如何使用我选择的键和值(在 php 中)将数组添加到另一个数组的每个元素?

有什么建议吗?:)

推荐答案

这将有助于:

function fixArrayKey(&$arr)
{
    $arr = array_combine(
        array_map(
            function ($str) {
                return str_replace(" ", "_", $str);
            },
            array_keys($arr)
        ),
        array_values($arr)
    );

    foreach ($arr as $key => $val) {
        if (is_array($val)) {
            fixArrayKey($arr[$key]);
        }
    }
}

测试如下:

$data = array (
    "key 1" => "abc",
    "key 2" => array ("sub 1" => "abc", "sub 2" => "def"),
    "key 3" => "ghi"
);
print_r($data);
fixArrayKey($data);
print_r($data);

输入:

Array
(
    [key 1] => abc
    [key 2] => Array
        (
            [sub 1] => abc
            [sub 2] => def
        )

    [key 3] => ghi
)

输出:

Array
(
    [key_1] => abc
    [key_2] => Array
        (
            [sub_1] => abc
            [sub_2] => def
        )

    [key_3] => ghi
)

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