php - 如何在 Swift 中访问从 PHP 传递的数组中的数据？

Question

我无法访问此数组中 Form 的内容:

["leagueStats": {
Form =     (
            (
                    {
            date = "2017-01-31";
            "player1_name" = Dicky;
            "player1_result" = L;
            "results_id" = 42;
        },
                    {
            date = "2017-01-26";
            "player1_name" = Dicky;
            "player1_result" = L;
            "results_id" = 41;
        },
                    {
            date = "2017-01-24";
            "player1_name" = Dicky;
            "player1_result" = D;
            "results_id" = 37;
        },
                    {
            date = "2017-01-21";
            "player1_name" = Dicky;
            "player1_result" = W;
            "results_id" = 34;
        },
                    {
            date = "2017-01-21";
            "player1_name" = Dicky;
            "player1_result" = L;
            "results_id" = 35;
        },
                    {
            date = "2017-01-07";
            "player1_name" = Dicky;
            "player1_result" = W;
            "results_id" = 27;
        },
                    {
            date = "2016-12-30";
            "player1_name" = Dicky;
            "player1_result" = W;
            "results_id" = 24;
        },
                    {
            date = "2016-12-24";
            "player1_name" = Dicky;
            "player1_result" = W;
            "results_id" = 21;
        }
    ),
            (
                    {
            date = "2017-01-25";
            "player1_name" = G;
            "player1_result" = D;
            "results_id" = 40;
        },
                    {
            date = "2017-01-25";
            "player1_name" = G;
            "player1_result" = W;
            "results_id" = 39;
        },
                    {
            date = "2017-01-25";
            "player1_name" = G;
            "player1_result" = W;
            "results_id" = 38;
        },
                    {
            date = "2017-01-24";
            "player1_name" = G;
            "player1_result" = D;
            "results_id" = 37;
        },
                    {
            date = "2017-01-24";
            "player1_name" = G;
            "player1_result" = W;
            "results_id" = 36;
        },
                    {
            date = "2017-01-21";
            "player1_name" = G;
            "player1_result" = W;
            "results_id" = 35;
        },
                    {
            date = "2017-01-21";
            "player1_name" = G;
            "player1_result" = L;
            "results_id" = 34;
        },
                    {
            date = "2017-01-21";
            "player1_name" = G;
            "player1_result" = D;
            "results_id" = 33;
        }
    ),
            (
                    {
            date = "2017-01-31";
            "player1_name" = Sultan;
            "player1_result" = W;
            "results_id" = 42;
        },
                    {
            date = "2017-01-26";
            "player1_name" = Sultan;
            "player1_result" = W;
            "results_id" = 41;
        },
                    {
            date = "2017-01-25";
            "player1_name" = Sultan;
            "player1_result" = L;
            "results_id" = 38;
        },
                    {
            date = "2017-01-25";
            "player1_name" = Sultan;
            "player1_result" = D;
            "results_id" = 40;
        },
                    {
            date = "2017-01-25";
            "player1_name" = Sultan;
            "player1_result" = L;
            "results_id" = 39;
        },
                    {
            date = "2017-01-24";
            "player1_name" = Sultan;
            "player1_result" = L;
            "results_id" = 36;
        },
                    {
            date = "2017-01-21";
            "player1_name" = Sultan;
            "player1_result" = D;
            "results_id" = 33;
        },
                    {
            date = "2017-01-15";
            "player1_name" = Sultan;
            "player1_result" = L;
            "results_id" = 30;
        }
    )
);
]

这是我的代码:

 override func viewDidAppear(_ animated: Bool) {

    let myUrl = URL(string: "http://www.xyz.uk/xyz/getLeagueStats.php")
    var request = URLRequest(url:myUrl!)
    request.httpMethod = "POST"

    let postString = "player_id=\(self.playerId2!)&community_id=\(communityId2!)";

    request.httpBody = postString.data(using: String.Encoding.utf8);
    let task = URLSession.shared.dataTask(with: request) { (data: Data?, response: URLResponse?, error: Error?) in
        DispatchQueue.main.async
            {
                do{

                    let json = try JSONSerialization.jsonObject(with: data!, options: .allowFragments) as? [String:AnyObject]
                    print (json!)

                    if let dict = json?["leagueStats"] as? [String:AnyObject] {
                        print ("step 1")

                        if let arr = dict["Form"] as? [[String:AnyObject]] {

                        print ("step 2")

                            self.leagueForm = arr.flatMap { Form($0 as! [String : String]) }
                            print (self.leagueForm)
                            print (self.leagueForm.count)

                            for i in 0..<self.leagueForm.count {
                                let form = self.leagueForm[i]
                                print (form.player_results!)
                                self.formGuide.append(form.player_results!)

                            }

                            print ("now")
                            print (self.formGuide)
                            self.resultsDisplay.results = self.formGuide
                            self.resultsDisplay.results = self.resultsDisplay.results.reversed()
                            self.resultsDisplay.displayResults()

                        }

}

数组 Form 位于数组 leagueStats 内，因为 leagueStats 还包含来自 PHP API 调用的其他数组。

Form内应该有3个数组，结果数据为；迪基，G，苏丹。

我无法访问这些数据是哪里出了问题？

我不确定是否需要，但这是我处理此调用的 PHP 脚本:

$communityPlayersIds = array();
$communityPlayersIds = $dao->getSpecificCommunity($communityId);
foreach ($communityPlayersIds as $cPI){
    $playerForm[] = $dao->getCommunityForm($cPI, $communityId);
    $i++;
}
$Form = array('playerForm' => $playerForm);
$arr = array('Form' => $playerForm);
echo json_encode (array('leagueStats' => $arr));

本文顶部的输出来自 print(json!)。

我正在打印“step1”，但代码此时失败，因为“step2”未打印。

Answer 1

您无需评估所有 24 个字典对象即可了解问题所在。精简数据，以便更容易理解其真正的格式。这基本上就是您所拥有的:

["leagueStats": {
Form =     (
        (
                {
        date = "2017-01-31";
        "player1_name" = Dicky;
        "player1_result" = L;
        "results_id" = 42;
    },
                {
        date = "2016-12-24";
        "player1_name" = Dicky;
        "player1_result" = W;
        "results_id" = 21;
    }
),
        (
                {
        date = "2017-01-31";
        "player1_name" = Sultan;
        "player1_result" = W;
        "results_id" = 42;
    },
                {
        date = "2017-01-15";
        "player1_name" = Sultan;
        "player1_result" = L;
        "results_id" = 30;
    }
)
);
]

所以你真的有:

key : {
  key : {
     [dictionary, dictionary], 
     [dictionary, dictionary]
  }
}

编辑:

if let arr = dict["Form"] as? [[String:AnyObject]]

指示“Form”的值应该是字典数组。您有一个字典数组的数组。