PHP将数组追加到子数组 [英] PHP Append an array to a sub array

问题描述

我需要创建一个位置数组，它必须看起来像这样

I need to make an array of locations arrays, it must look like this

$relevanceKeys = array(
    'locations' => array(

        array(
            'longitude' => '123456',
            'latitude' => '123456'
        ),
        array(
            'longitude' => '123456',
            'latitude' => '123456'
        )
         ... more arrays
    )  

);

但是我需要即时生成它们，所以它的开始就像

However I need to generate those on the fly, so it starts out like

$relevanceKeys = array(
    'locations' => array(  

    )  
);

然后我要从数据库中找到的行中添加每个数组:

And then I want to add each array from a row I found in the database:

while ($row = $result->fetch_object()) {
   $array = array(
               array (
       'longitude' => $row->longitude,
        'latitude' => $row->latitude
           )
   );

$relevanceKeys['locations'] = $relevanceKeys['locations'] + $array;
} 

但这不起作用，之后该文件不可读.它已导出为另一种格式，所以我看不到它是否正确地变成了阵列树.

This does not work though, afterwards the file is not readable. It's exported to a different format so I can't see if it turns into the array tree correctly.

我从此处阅读了如何添加PHP数组 http://php.net/manual/zh-CN/function.array-merge.php

I read how to append PHP arrays from here http://php.net/manual/en/function.array-merge.php

我尝试了未嵌套的 $ array 并嵌套在现在的另一个数组中，没有运气

I tried unnested $array and nested in another array as it is now, no luck

推荐答案

只需追加如下数组:

$relevanceKeys['locations'][] = $array;
                         //^^ See here

您不必一直合并它们！

另外，我认为您想更改此内容:

Also I think you want to change this:

$array = array(
             array (
                 'longitude' => $row->longitude,
                 'latitude' => $row->latitude
             )
       );

为此，您将获得预期的结构:

to this to get your expected structure:

$array = array(
             'longitude' => $row->longitude,
             'latitude' => $row->latitude
       );

有关数组的更多信息，请参见手册: http://php.net/manual/zh-CN/language.types.array.php

For more information about array see the manual: http://php.net/manual/en/language.types.array.php

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