Question

我正在尝试检索来自不同国家/地区的学生回答的正确答案总数。

我正在使用JSON链接到我的php然后链接到我的数据库。但我似乎无法阅读单词之间的空格。例如，数据库中的国家/地区名称为"Czech Republic"。但是当我回音时，它会显示"Czech"。

php代码中的$country来自android studio，我发送了一个url链接Config.LEADERSHIPBOARD_URL_ME + country;以连接到数据库。

这是我的PHP代码：

<?php
    $country = $_GET['country'];

    require "conn.php";

    $sql_mcq = "SELECT * FROM mcqparticipator WHERE country = '".$country."'";
    $r_mcq = mysqli_query($conn,$sql_mcq);
    $result = array();

    $mcqCount = 0;

    if($r_mcq) 
    {   
        while($row = mysqli_fetch_array($r_mcq))
        {   
            if(($row['correctAns'] == "1"))
            {
                $mcqCount++;
            }
        }

        array_push($result,array( 
        "McqCount"=>$mcqCount,
        "Country"=>$country));

        echo json_encode(array("result"=>$result)); 
    }
    else 
    {
        echo "No connection";       
    }

    $conn->close();
?>

这是我android studio的代码：

// Description: This method will generate a url and send a request
//              This method will call showJSON() method to start sending the response
private void getData(){

    loading = ProgressDialog.show(getActivity(), "Please wait...","Fetching", false, false);
    url = Config.LEADERSHIPBOARD_URL_ME + country;

    StringRequest stringRequest = new StringRequest(url, new Response.Listener<String>() {
        @Override
        public void onResponse(String response) {
            loading.dismiss();
            showJSON(response);

            Toast.makeText(getActivity(), "Country in studio: " + country, Toast.LENGTH_LONG).show();
            Toast.makeText(getActivity(), "Country in database: " + dcountry, Toast.LENGTH_LONG).show();
            Toast.makeText(getActivity(), "Mcq count: " + McqCount, Toast.LENGTH_LONG).show();
        }
    },
            new Response.ErrorListener() {
                @Override
                public void onErrorResponse(VolleyError error) {
                    //Toast.makeText(getActivity(),"No existing question", Toast.LENGTH_LONG).show();
                    Toast.makeText(getActivity(), error.getMessage().toString(),Toast.LENGTH_LONG).show();
                }
            });

    RequestQueue requestQueue= Volley.newRequestQueue(getActivity());
    requestQueue.add(stringRequest);
}

// Description: This method will generate a response using JSON via php.
// Retreive and compare the participants answer with the correct answer
public void showJSON(String response) {

    try{
        JSONObject jsonObject = new JSONObject(response);
        JSONArray result = jsonObject.getJSONArray(Config.JSON_ARRAY);
        JSONObject collegeData = result.getJSONObject(0);
        McqCount = collegeData.getString(Config.MCQ_COUNT);
        dcountry = collegeData.getString("Country");

    } catch (JSONException e) {
        e.printStackTrace();
    }
}

感谢有人可以帮助我，谢谢！

无法读取mysql json php android之间的空格

0 个答案: