Question

我使用echo json_encode(array);

输出以下数组

Array (
  [0] => Array (
  [id] => 85
  [name] => yeyery
  [area_xy] => {"type": "rectangle","coordinates": {"point1":"22.272219163607744:114.13580417633057","point2":"22.275753627993897:114.1413402557373","point3":"22.27297371968214:114.14400100708008","point4":"22.270868895211578:114.13910865783691"}}
  )
)

这是我得到的输出：

[
   {
      "id":"85",
      "name":"yeyery",
      "area_xy":"{\"type\": \"rectangle\",\"coordinates\": {\"point1\":\"22.272219163607744:114.13580417633057\",\"point2\":\"22.275753627993897:114.1413402557373\",\"point3\":\"22.27297371968214:114.14400100708008\",\"point4\":\"22.270868895211578:114.13910865783691\"}}",
   }
]

但预期的输出是：

[
   {
      "id":"85",
      "name":"yeyery",
      "area_xy":{"type": "rectangle","coordinates": {"point1":"22.272219163607744:114.13580417633057","point2":"22.275753627993897:114.1413402557373","point3":"22.27297371968214:114.14400100708008","point4":"22.270868895211578:114.13910865783691"}},
   }
]

在"area_xy"之后我不想使用双引号来包装我的嵌套JSON。

Answer 1

初始输出具有误导性;您应该使用var_export，并且您会看到area_xy值已经是字符串：

array (
  0 => 
  array (
    'id' => 85,
    'name' => 'yeyery',
    'area_xy' => '{"type": "rectangle","coordinates": {"point1":"22.272219163607744:114.13580417633057","point2":"22.275753627993897:114.1413402557373","point3":"22.27297371968214:114.14400100708008","point4":"22.270868895211578:114.13910865783691"}}',
  ),
)

要先纠正它，decode，然后对整个shebang进行编码：

$arr[0]['area_xy'] = json_decode($arr[0]['area_xy']);
echo json_encode($arr, JSON_PRETTY_PRINT);

json_encode为嵌套的JSON创建双引号

1 个答案: