将元素的完整位置存储在多维数组中以供重用

问题描述：

This question is based on my other question here about a suitable array processing algorithm.

In my case, I want to flatten a multidimensional array, but I need to store the full key to that element for reuse later.

For example :

array(
  0 => array(
         'label' => 'Item1',
         'link' => 'http://google.com',
         'children' => null
  )

  1 => array(
         'label' => 'Item2',
         'link' => 'http://google.com',
         'children' => array( 3 => array(
                                     'label' => 'SubmenuItem1',
                                     'link' => 'http://www.yahoo.com',
                                     'children' => null
                        )
          )
  )

  2 => array(
         'label' => 'Item3',
         'link' => 'http://google.com',
         'children' => null
  )
)

Should be flattened into something like the following table

Key              Link
===================================
[0]              http://google.com
[1]              http://google.com
[2]              http://google.com
[1][3]           http://yahoo.com

The problem is that I while I can easily store the location of an element in a multidimensional array, I am finding it to be quite hard to retrieve that element later. For example, if I store my key as $key = "[1][3]", I can not access it using $myarray[$key]. Is there anyway to do this?

这个问题基于我在这里关于合适的数组处理的另一个问题算法。 p>

在我的例子中，我想要展平多维数组，但是我需要将完整的密钥存储到该元素中以便以后重用。 p>

例如： p>

  array（
 0 =＆gt; array（
'label'=＆gt;'Item1'，
'link'=＆gt;'http：// google  .com'，
'children'=＆gt; null 
）
 
 1 =＆gt; array（
'label'=＆gt;'Item2'，
'link'=＆gt;'http：/  /google.com'，
'children'=＆gt;数组（3 =＆gt;数组（
'标签'=＆gt;'SubmenuItem1'，
'链接'=＆gt;'http://www.yahoo  .com'，
'children'=＆gt; null 
）
）
）
 
 2 =＆g 吨; 数组（
'标签'=＆gt;'第3项'，
'链接'=＆gt;'http：//google.com'，
'儿童'=＆gt; null 
）
）
   pre> 
 
 应该扁平化为类似下表的内容 p> 
 
 
  Key Link 
 =========  ========================== 
 [0] http：//google.com 
 [1] http://google.com  
 [2] http：//google.com 
 [1] [3] http：//yahoo.com 
  code>  pre> 
 
 问题在于我 我可以轻松地将元素的位置存储在多维数组中，我发现稍后检索该元素非常困难。 例如，如果我将我的密钥存储为 $ key =“[1] [3]” code>，我无法使用 $ myarray [$ key]  code>访问它。 反正有吗？ p> 
  div>

答

Solution using recursion:

//Array parts should be an array containing the keys, for example, to address
//SubmenuItem1, I had 1.3 when the array was flattened. This was then exploded() to the array [1, 3]
$this->recurseIntoArray($myArray, $arrayParts);

private function recurseIntoArray(&$array, $arrayParts){
   $current = $arrayParts[0];
   $array[$current]['blah'] = 'blah'; //If you want to update everyone in the chain on the way down, do it here

   array_shift($arrayParts);

   if (!empty($arrayParts)){
      $this->recurseIntoArray($array[$current]['children'], $arrayParts);
   }else{
      //If you want to update only the last one in the chain, do it here.
   }
}

将元素的完整位置存储在多维数组中以供重用

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