"尝试从 PHP 中的 Json 数组中删除嵌套"

Question

如您所见，我有一个包含多个元素的 json 数组，并且我一直在尝试删除嵌套（“DEMARCHE”）元素，并且我希望将数组展平。 但它只给出一个输出数组，但我的 json 文件包含多个数组。 如果有人可以帮助我，我将非常感激。 _ 谢谢

** 这是输入 **

[
    {
    "CHEPTEL":"12001116",
    "NOM":"La Ferme de Jean-Marc et Aurélien ",
    "CODE_POSTAL":"12630",
    "VILLE":"AGEN D AVEYRON",
    "LATITUDE":"44.343518",
    "LONGITUDE":"2.716004",
    "DESCRIPTIF_FERME":"",
    "DEMARCHE" : [
    {
    "DEMA_CODE":"08-93",
    "ANNEE_ADHESION":"2016",
    "RACE_MERES":"Limousine",
    "DESCRIPTIF_ATELIER":""
    }
    ]        
    },
    {
    "CHEPTEL":"12001",
    "NOM":"La Ferme ",
    "CODE_POSTAL":"12630",
    "VILLE":"AGEN D AVEYRON",
    "LATITUDE":"44.343518",
    "LONGITUDE":"2.716004",
    "DESCRIPTIF_FERME":"",
    "DEMARCHE" : [
    {
    "DEMA_CODE":"08-93",
    "ANNEE_ADHESION":"2016",
    "RACE_MERES":"Limousine",
    "DESCRIPTIF_ATELIER":""
    }
    ]        
    }
    ]

Answer 1

只需循环并使用参考。

//& sign in this context is called a reference.
//That means the $original will be changed if $values is changed inside the loop.
foreach($original as &$values) {
    unset($values['DEMARCHE']);
}

结果：

[
   {
      "CHEPTEL":"12001116",
      "NOM":"La Ferme de Jean-Marc et Aur\u00e9lien ",
      "CODE_POSTAL":"12630",
      "VILLE":"AGEN D AVEYRON",
      "LATITUDE":"44.343518",
      "LONGITUDE":"2.716004",
      "DESCRIPTIF_FERME":""
   },
   {
      "CHEPTEL":"12001",
      "NOM":"La Ferme ",
      "CODE_POSTAL":"12630",
      "VILLE":"AGEN D AVEYRON",
      "LATITUDE":"44.343518",
      "LONGITUDE":"2.716004",
      "DESCRIPTIF_FERME":""
   }
]

Answer 2

试试这个：

<?php
  $json = '[
    {
      "CHEPTEL":"12001116",
      "NOM":"La Ferme de Jean-Marc et Aurélien ",
      "CODE_POSTAL":"12630",
      "VILLE":"AGEN D AVEYRON",
      "LATITUDE":"44.343518",
      "LONGITUDE":"2.716004",
      "DESCRIPTIF_FERME":"",
      "DEMARCHE" : [
        {
        "DEMA_CODE":"08-93",
        "ANNEE_ADHESION":"2016",
        "RACE_MERES":"Limousine",
        "DESCRIPTIF_ATELIER":""
        }
      ]        
    },
    {
      "CHEPTEL":"12001",
      "NOM":"La Ferme ",
      "CODE_POSTAL":"12630",
      "VILLE":"AGEN D AVEYRON",
      "LATITUDE":"44.343518",
      "LONGITUDE":"2.716004",
      "DESCRIPTIF_FERME":"",
      "DEMARCHE" : [
        {
        "DEMA_CODE":"08-93",
        "ANNEE_ADHESION":"2016",
        "RACE_MERES":"Limousine",
        "DESCRIPTIF_ATELIER":""
        }
      ]        
    }
    ]';
    
  $array1 = json_decode($json, true);
  $newArr = array_map(function ($arr) {
    foreach ($arr as $key => $val) {
      if ($key === 'DEMARCHE') {
        foreach ($val[0] as $key1 => $val1) {
          $arr[$key1] = $val1;
        }
      }
    }
    
    unset($arr['DEMARCHE']);
    
    return $arr;
  }, $array1);
  
  echo json_encode($newArr, JSON_PRETTY_PRINT); // done!