替换数组php

Question

[lang_1] => Array 
    (
     [0] => Array 
      (
       [answer] => satu 
       [status_answer] => 2 
       [key_array] => 0 
       [language] => lang_1 
      ) 

     [1] => Array 
      (
       [answer] => dua_en 
       [status_answer] => 3 
       [key_array] => 
       [language] => lang_1 
      ) 

     [2] => Array 
      (
       [answer] => lima 
       [status_answer] => 3 
       [key_array] => 
       [language] => lang_1 
      ) 

     [3] => Array 
      (
       [answer] => enam 
       [status_answer] => 3 
       [key_array] => 
       [language] => lang_1 
      ) 

    ) 

[lang_2] => Array 
    (
     [0] => Array 
      (
       [answer] => satu 
       [status_answer] => 3 
       [key_array] => 
       [language] => lang_2 
      ) 

     [1] => Array 
      (
       [answer] => dua_en 
       [status_answer] => 2 
       [key_array] => 1 
       [language] => lang_2 
      ) 

     [2] => Array 
      (
       [answer] => lima 
       [status_answer] => 3 
       [key_array] => 
       [language] => lang_2 
      ) 

     [3] => Array 
      (
       [answer] => enam 
       [status_answer] => 3 
       [key_array] => 
       [language] => lang_2 
      ) 

    ) 

我有这两个数组。我的问题是，我怎么能在lang_1与数组中lang_2取代数组，其中status_answer = 2只为元素

Answer 1

首先搜索lang_2你想：

foreach ($array['lang_2'] as $el) { 
    if ($el['status_answer'] == 2) { 
     $replacement = $el; 
     break; 
    } 
} 

然后搜索lang_1您要更换元素：

foreach ($array['lang_1'] as &$el) { 
    if ($el['status_answer'] == 2) { 
     $el = $replacement; 
    } 
}