回答-BFW问答

这个很好解决

java中使用JSON或GSON

public class User {
     
     public String name;
     public int age;
　　　//省略
     public String email;

}
Gson gson = new GsonBuilder().serializeNulls() .create();
User user = new User("张三", 24);
System.out.println(gson.toJson(user)); //{"name":"张三","age":24,"email":null}

java反序列化

Gson gson = new Gson();
String jsonArray = "[\"Android\",\"Java\",\"PHP\"]";
String[] strings = gson.fromJson(jsonArray, String[].class);

然后使用php的反序列方法

<?php
$user=($_POST[‘user’],true);var_dump($user);
?>

php序列化

<?php
$user=['name]=>"三","age"=>11."email"=>"wang@bfw.wiki"];
$_user=json_encode($user);
?>