当我通过 XAMPP 使用 Unity C# 访问 Sqlite 数据库时，我得到了奇怪的结果

Question

    <?php
    $servername = "localhost";
    $username="root";
    $password="";
    $dbName="escape_room";
    $user_username = $_POST['Input_user'];
    $user_password = $_POST['Input_pass'];
    $conn = new mysqli($servername, $username, $password, $dbName);
    if(!$conn){
        die("Cound not Connect: " . mysqli_connect_error());
    }

    $sql = "SELECT pass FROM escape_room WHERE user = '".$user_username."' ";
    $result = mysqli_query($conn, $sql);

    //Get the result and confirm login 
    if(mysqli_num_rows($result)>0){
        while($row = mysqli_fetch_assoc($result)){
            if($row['pass'] == $user_password){ 
                echo "login success";
                echo $row['pass'];  
            }else{
                echo "password incorrect";
                echo "password is =". $row['pass'];
            }
        }
    }else{
        echo "user not found";
        echo "password is =". $row['pass'];}

我在 Unity C 脚本中创建了一个 WWWForm，并试图通过服务器 XAMPP 上的运行 Login.php 获取 Mysqlitedatabase 的值。但是，我无法确认 ID 是否匹配。只有用 html 语言编写的代码才会出现在控制台中。

    <?xml version="1.0" encoding="UTF-8"?>
    <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN"
    "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
      <html xmlns="http://www.w3.org/1999/xhtml" lang="en" xml:lang="en">
      <head>
      <title>Object not found!</title>
     ...

我该怎么办？感谢您阅读。

using System.Collections;
using System.Collections.Generic;
using UnityEngine.UI;
using UnityEngine;
public class gamemanager : MonoBehaviour {

    [Header("LoginPanel")]
    public InputField ID;
    public InputField PW;
    [Header("CreateAccountPanel")]
    public InputField New_ID;
    public InputField New_PW;

    public string LoginUrI;
    // Use this for initialization
    void Start () {
        LoginUrI = "localhost/escape_room/Login.php";
    }


    public void LoginBtn()
    {
        StartCoroutine(LoginToDB(ID, PW));
    }

    IEnumerator LoginToDB(InputField username, InputField password)
    {
        Debug.Log(username.text);
        Debug.Log(password.text);

        WWWForm form = new WWWForm();
        form.AddField("Input_user", username.text);
        form.AddField("Input_pass", password.text);

        WWW webRequest = new WWW(LoginUrI, form);

        yield return webRequest;
        Debug.Log(webRequest.text);

    }

    public void CreateAccountBtn()
    {

    }
       }

+添加） [ 这是我在 Unity C 脚本中实现的。我有一个 InputField，我使用 AddField 方法接受该 inputField 并将其传递给 php。此外，我创建了一个 WWW 对象以允许通过服务器访问 Login.php。最后，我通过 Debug.Log 进行了测试，以查看登录结果的外观。 ]

Answer 1

确认您在 xampp 上的路径，以确保这是您的目录路径 C:\xampp\htdocs\escape_room\Login.php
您实际上需要先从 unity post 表单，请参阅下面的代码
在没有 sql 的情况下单独调试 php 以确保您获得正确的数据。见代码。

WWW形式

    using System.Collections;
    using System.Collections.Generic;
    using UnityEngine.UI;
    using UnityEngine;
    using UnityEngine.Networking;
    public class gamemanager : MonoBehaviour {

    [Header("LoginPanel")]
    public InputField ID;
    public InputField PW;
    [Header("CreateAccountPanel")]
    public InputField New_ID;
    public InputField New_PW;

    string LoginUrI = "http://localhost/escape_room/login.php";
    // Use this for initialization
    void Start () {

    }


    public void LoginBtn()
    {
        StartCoroutine(LoginToDB(ID, PW));
    }

    IEnumerator LoginToDB(InputField username, InputField password)
    {
        Debug.Log(username.text);
        Debug.Log(password.text);

        WWWForm form = new WWWForm();
        form.AddField("Input_user", username.text);
        form.AddField("Input_pass", password.text);

        // Make Post Request
        using (var w = UnityWebRequest.Post(LoginUrI, form))
        {
            yield return w.SendWebRequest();
            if (w.isNetworkError || w.isHttpError) {
                 Debug.Log(w.error);
            }
            else {
                  Debug.Log(w.downloadHandler.text);
            }
        }


    }

    public void CreateAccountBtn()
    {

    }
       }

测试 php 代码，用这个替换你的 Login.php 以确保你首先获得值。

<?php


    if(isset($_POST) && !empty($_POST)){
        echo "Successful post"; 
        var_dump($_POST);
    } else die("Error: post not successful");
?>

当我通过 XAMPP 使用 Unity C# 访问 Sqlite 数据库时，我得到了奇怪的结果

I get strange results when I access the Sqlitedatabase with Unity C# via XAMPP

php

sqlite

xampp

login

unity3d