unity php json 配列

Question

現在unityで開発をしています。phpの配列をjson形式にし、unity側に返したいのですがやり方がわからず困っています。

コード

$jsonstr =  array(
    ["playerId" => "a", "playerLoc" => "b"],
    ["playerId" => "c", "playerLoc" => "d"],
    ["playerId" => "e", "playerLoc" => "f"],
    ["playerId" => "g", "playerLoc" => "h"],
);
//配列をJSON形式に変換
$jsonstr =  json_encode($jsonstr);

echo $jsonstr;

コード

[System.Serializable]
public class player
{
    public string playerId { get; set; }
    public string playerLoc { get; set; }
}

[Serializable]
public class QuizData
{

    public player[] questions;
}

↑でクラスの宣言


public void sample(){

  var players = JsonUtility.FromJson<QuizData>(www.text);   ←ここでエラーが起きます

}

Answer 1

JsonUtilityはルートが配列のJSONを処理できません。
したがって、このような形のJSONを返す必要があります。

{
  "players": [
    {"playerId": "a", "playerLoc": "b"},
    {"playerId": "a", "playerLoc": "b"},
    {"playerId": "a", "playerLoc": "b"},
    ...
  ]
}

$jsonstr = array(
  "players" => array(
    ["playerId" => "a", "playerLoc" => "b"],
    ["playerId" => "c", "playerLoc" => "d"],
    ["playerId" => "e", "playerLoc" => "f"],
    ["playerId" => "g", "playerLoc" => "h"]
  )
);

[System.Serializable]
public class Player
{
    public string playerId;
    public string playerLoc;
}

[Serializable]
public class QuizData
{
    public List<Player> players;
}

string jsonStr = "{\"players\":[{\"playerId\":\"a\",\"playerLoc\":\"b\"},{\"playerId\":\"c\",\"playerLoc\":\"d\"},{\"playerId\":\"e\",\"playerLoc\":\"f\"},{\"playerId\":\"g\",\"playerLoc\":\"h\"}]}";

var quizData = JsonUtility.FromJson<QuizData>(jsonStr);
foreach (var player in quizData.players)
{
    Debug.Log($"playerId={player.playerId}, playerLoc={player.playerLoc}");
}

たぶん、こんな感じで動くと思います。

Comments

[sashiburi]

本当にありがとうございます。

ここ五日間躓いて先に進めませんでしたがやっと進むことができます。