通过键php获取数组元素。

时间：2022-08-01 03:37:13

I have an array of (many) arrays, encoded at different depths. The problem is that I know the key of the element I am searching for, but not the depth of the encoding. So for example it might be
Array ( [1] => Array ( [1] => Array ('abcd' => 'a' ) ) or Array ('abcd' => 'a' ) So is there any way to find that abcd key?

我有一个阵列(许多)阵列，编码在不同的深度。问题是，我知道我要搜索的元素的键，而不是编码的深度。例如，它可能是数组([1]=>数组([1]=>数组('abcd' => 'a'))或数组('abcd' => 'a')，那么有没有办法找到abcd键?

2 个解决方案

#1

0  

function find_array_key($array,$keytofind){
 $found=false;
 if (is_array($array)&& $found==false){
   foreach($array as $key=>$value){
      if (is_array($value)&& $found==false){
        find_array_key($array,$keytofind)
      }else{ 
         if ($found==false && $key=$keytofind){
          $found=$value;
         }
      }
   }
   return $found;
 }

I didn't run this code to test it but it should be pretty close to a nice recursive function for what you are trying to do and returning the value of the key you are looking for

我没有运行这个代码来测试它，但是它应该非常接近于一个很好的递归函数，因为你要做的是返回你要找的键值。

#2

0  

if (array_key_exists('abcd', $search_array))

#1

0  

function find_array_key($array,$keytofind){
 $found=false;
 if (is_array($array)&& $found==false){
   foreach($array as $key=>$value){
      if (is_array($value)&& $found==false){
        find_array_key($array,$keytofind)
      }else{ 
         if ($found==false && $key=$keytofind){
          $found=$value;
         }
      }
   }
   return $found;
 }

I didn't run this code to test it but it should be pretty close to a nice recursive function for what you are trying to do and returning the value of the key you are looking for

我没有运行这个代码来测试它，但是它应该非常接近于一个很好的递归函数，因为你要做的是返回你要找的键值。

#2

0  

if (array_key_exists('abcd', $search_array))
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