Question

嘿你好我的代码有问题我有3天这个问题，我不能自己解决。谁想要帮助我的项目，您可以留下您的联系人。我会联系你。

这是我的PHP代码

<?php
// Create connection
$conn = @mysqli_connect('localhost', 'id2066022_oakkozht', 'oakko7596');
 mysqli_select_db($conn, "id2066022_uficondb") or die ("no database");
date_default_timezone_set('Asia/Bangkok');
$timestamp = date('Y-m-d H:i:s');
$numQue=$_POST["numQue"];
$dated=$_POST["dated"];
$return_arr = array();

// Check connection
if (!$conn) {
    die("Connection failed: " . mysqli_connect_error());
}
$insertation = "INSERT INTO uficontable (date_timestamp)
        VALUES (CURRENT_TIMESTAMP)";
$selectation = "SELECT * FROM uficontable ORDER BY id DESC LIMIT 1";

    $insertationQuery = mysqli_query($conn, $insertation);
    if (!$insertationQuery) {
        echo "Could not process your information " . mysqli_error();
    } else {
    $selectationQuery = mysqli_query($conn, $selectation);
    while ($data = mysqli_fetch_assoc($selectationQuery))
    {
       $return_arr[] = $data;    
    }
    }
echo json_encode($return_arr);
echo "Connected successfully";

?>

和SWIFT

func requestPost () {

    let request = NSMutableURLRequest(url: NSURL(string: "https://oakkohost.000webhostapp.com/test.php") as! URL)
    request.httpMethod = "POST"
    let postString = "numQue"

    request.httpBody = postString.data(using: .utf8)
    let task = URLSession.shared.dataTask(with: request as URLRequest) { data, response, error in
        guard let data = data, error == nil else {
            print("error=\(error)")
            return
        }
        let responseString = NSString(data: data, encoding: String.Encoding.utf8.rawValue)
        print("post: \(responseString)")

                }
    task.resume()
}}

结果是

[{＆＃34; id＆＃34;：＆＃34; 147＆＃34;，＆＃34; date_timestamp＆＃34;：＆＃34; 2017-06-26 16：42：16＆＃34;} ]

问题是我想使用这个结果，我的标签在Swift Code中的ID我怎么能用它？

感谢您的回答

Answer 1

您需要做的是使用JSONSerialization从JSON获取data个对象。同样在Swift 3中，使用URLRequest和URL代替NSMutableURLRequest和NSURL。

func requestPost () {

    var request = URLRequest(url: URL(string: "https://oakkohost.000webhostapp.com/test.php")!)
    request.httpMethod = "POST"
    let postString = "numQue"

    request.httpBody = postString.data(using: .utf8)
    let task = URLSession.shared.dataTask(with: request) { data, response, error in
        guard let data = data, error == nil else {
            print("error=\(error)")
            return
        }
        if let array = (try? JSONSerialization.jsonObject(with: data, options: [])) as? [[String:Any]], 
           let obj = array.first {

             let id = obj["id"] as? String
             //Set id to label on main thread
             DispatchQueue.main.async {
                  self.yourIdLabel.text = id
             }
        }

    }
    task.resume()
}

Answer 2

var json: [Any]?
do {
    // Get json from data
    json = try JSONSerialization.jsonObject(with: data) as? [Any]
} catch {
    print(error)
}
// Get item from json object
guard let item = json?.first as? [String: Any],
    let id = item["id"] as? [String: Any] else {
        return
}
// Assign the `id` to your label
yourLabel.text = id

如何从PHP获取数据作为JSON并显示在标签swift上

2 个答案: