尝试使用截击更新数据库时出现Php错误

我正在尝试更新具有以下属性的数据库-

用户名

名字

姓氏

电子邮件

密码

使用以下php代码：

<?php
    $con = mysqli_connect("localhost", "id2748657_users", "users", "id2748657_users");

    $username = $_POST["username"];
    $first_name = $_POST["first_name"];
    $last_name = $_POST["last_name"];
    $email = $_POST["email"];
    $password = $_POST["password"];

    $statement = mysqli_prepare($con, "INSERT INTO users (username, first_name, last_name, email, password) VALUES (?, ?, ?, ?,?)");
    mysqli_stmt_bind_param($statement, "sssss", $username, $first_name, $last_name, $email, $password);
    mysqli_stmt_execute($statement);

    $response = array();
    $response["success"] = true;  

    echo json_encode($response);
?>

我尝试在php文件中传递“硬编码”字符串，并更新了数据库。似乎截击没有更新参数或其他东西。

我认为

getParams（）

在截击请求中不起作用。您可以使用

loopj

library来代替截击。它很容易使用。试试下面的代码

在渐变中添加依赖项

 compile 'com.loopj.android:android-async-http:1.4.9'

请求您的web Api

     RequestParams params = new RequestParams();
    params.put("username", username);
    params.put("first_name", first_name);
    params.put("last_name", last_name);
    params.put("email", email);
    params.put("password", password);

        String url="http://fibi.000webhostapp.com/register.php";

        new AsyncHttpClient().post(url, params, new AsyncHttpResponseHandler() {
            @Override
            public void onSuccess(int statusCode, Header[] headers, byte[] responseBody) {
              String rs = new String(responseBody);

               // do whatever you want

            }

            @Override
            public void onFailure(int statusCode, Header[] headers, byte[] responseBody, Throwable error) {

            }
        });

做：

根据您的错误，这应该可以修复未定义的索引

Notice: Undefined index: username in /storage/ssd1/657/2748657/public_html/register.php on line 4

Notice: Undefined index: first_name in /storage/ssd1/657/2748657/public_html/register.php on line 5

Notice: Undefined index: last_name in /storage/ssd1/657/2748657/public_html/register.php on line 6

Notice: Undefined index: email in /storage/ssd1/657/2748657/public_html/register.php on line 7

Notice: Undefined index: password in /storage/ssd1/657/2748657/public_html/register.php on line 8
{"success":true}

 compile 'com.loopj.android:android-async-http:1.4.9'

     RequestParams params = new RequestParams();
    params.put("username", username);
    params.put("first_name", first_name);
    params.put("last_name", last_name);
    params.put("email", email);
    params.put("password", password);

        String url="http://fibi.000webhostapp.com/register.php";

        new AsyncHttpClient().post(url, params, new AsyncHttpResponseHandler() {
            @Override
            public void onSuccess(int statusCode, Header[] headers, byte[] responseBody) {
              String rs = new String(responseBody);

               // do whatever you want

            }

            @Override
            public void onFailure(int statusCode, Header[] headers, byte[] responseBody, Throwable error) {

            }
        });

<?php

//Always check that you are receiving a POST|GET request before running your codes.
if( !empty( $_POST ) )
{
    $con = mysqli_connect("localhost", "id2748657_users", "users", "id2748657_users");
    $response = array(); //set it to empty 

    $username    = $_POST["username"];
    $first_name = $_POST["first_name"];
    $last_name  = $_POST["last_name"];
    $email   = $_POST["email"];
    $password   = $_POST["password"];

    //Create your query
    $query="INSERT INTO users (username, first_name, last_name, email, password) VALUES (?, ?, ?, ?,?)";
    
    $statement = mysqli_prepare($con, $query);
    mysqli_stmt_bind_param($statement, "sssss", $username, $first_name, $last_name, $email, $password);
    
    //Get boolean `true | false` as resposne
    $response["success"] = mysqli_stmt_execute($statement);  

    echo json_encode($response);
}
?>