如何从 Twig 的多维数组中获取值? [英] How to get values from a multidimensional array in Twig?

问题描述

我的数组 $strs[$key][$id] 的 var_dump 给出了以下结果:

A var_dump for my array $strs[$key][$id] gives the following result:

array(2) {
    [0]=> array(4) {
        [8259]=> string(8260) "ouvrir 1"
        [8260]=> string(8261) "fichier 2"
        [8261]=> string(8262) "quitter 1"
        [8262]=> string(8263) "lire 2"
    }
    [1]=> array(4) {
        [8259]=> string(8260) "lancer 2"
        [8260]=> string(8261) "dossier 1"
        [8261]=> string(8262) "exit 1"
        [8262]=> string(8263) "lire 2"
    }
}

在我看来，我想从所有 $key 中获取具有相同 $id 的所有字符串.像这样:
1-
ouvrir 1
枪骑兵2
2-
费希尔2
枪骑兵 2

In my view, I'm tying to get all the strings with the same $id from all the $key. Something like this:
1-
ouvrir 1
lancer 2
2-
fichier 2
lancer 2

等

我在我的树枝视图中试过这个:

I've tried this in my twig view:

{% for key,val in strs['key']['id']  %}
    {% if strs['key']['id'] is defined %}
     {{ key }} - <br/>      
     {{ val }}       
    {% endif %}   
{% endfor %}

我收到此错误:
键为0, 1"的数组的键键"不存在于...
我在这里做错了什么?我怎样才能得到我正在寻找的结果?

I got this error:
Key "key" for array with keys "0, 1" does not exist in...
What Am I doing wrong here? And how can I get the result I'm looking for?

推荐答案

不要把这个逻辑放在你的视图中.使用您的视图仅来显示内容.
改为在您的控制器中执行并将结果传递给您的视图:

Don't put this logic in your views. Use your views only to display stuff.
Do it in your controller instead and pass the result to your view:

$result = array();
foreach ($arrays as $array) {
  foreach ($array as $key => $value) {
    $result[$key][] = $value;
  }
}

结果将是一个数组，其键将是 ID，属于同一 ID 的字符串的值数组.

The result will be an array whose keys will be the IDs, the values arrays of strings that belong to the same ID.

显示:

{% for id, stringsById in results %}
  {{ id }}- <br />
  {% for string in stringsById %}
    {{ string }} <br />
  {% endfor %}
{% endfor %}

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