MySQL 服务检测到错误的路径

Question

当我安装 xampp 并运行我的 php 文件时，我发现了这个错误：

Connection Error: SQLSTATE[HY000] [2002] No connection could be made because the target machine actively refused it. 

这是我的连接：

<?php
$server="localhost";
$host="127.0.0.1";
$uname="root";
$prefix="";
$pass="admin";
$dbname="sample";

try{
    $conn=new PDO("mysql:host=$server;dbname=$dbname","{$prefix}{$uname}",$pass);
    // echo $conn;
}catch(PDOException $e){
    echo "Connection Error: ".$e->getMessage();
    die();
}
?>

然后我想我忘了在 xampp 控制器中启动 mysql。然后我打开 xampp 控制器然后我在 xampp 控制台中发现了这个红色：

11:40:29 AM  [mysql]    MySQL Service detected with wrong path
11:40:29 AM  [mysql]    Change XAMPP MySQL and Control Panel settings or
11:40:29 AM  [mysql]    Uninstall/disable the other service manually first
11:40:29 AM  [mysql]    Found Path: "C:\Program Files\MySQL\MySQL Server 5.1\bin\mysqld" --defaults-file="C:\Program Files\MySQL\MySQL Server 5.1\my.ini" MySQL
11:40:29 AM  [mysql]    Expected Path: c:\xampp\mysql\bin\mysqld.exe --defaults-file=c:\xampp\mysql\bin\my.ini mysql

然后我搜索以解决此错误。差点说我卸载了Mysql然后我尝试卸载它但是错误来了：

11:40:45 AM  [mysql]    Uninstalling service...
11:40:45 AM  [mysql]    MySQL Service detected with wrong path
11:40:45 AM  [mysql]    Change XAMPP MySQL and Control Panel settings or
11:40:45 AM  [mysql]    Uninstall/disable the other service manually first
11:40:45 AM  [mysql]    Found Path: "C:\Program Files\MySQL\MySQL Server 5.1\bin\mysqld" --defaults-file="C:\Program Files\MySQL\MySQL Server 5.1\my.ini" MySQL
11:40:45 AM  [mysql]    Expected Path: c:\xampp\mysql\bin\mysqld.exe --defaults-file=c:\xampp\mysql\bin\my.ini mysql
11:40:45 AM  [mysql]    Service was NOT (un)installed!

实际上我在安装xampp之前已经安装了mysql5.1，因为我在java中做项目。我是php新手，不知道该怎么办。请帮帮我。我真的需要帮助。提前谢谢你:')

Answer 1

connect.php 已解决。但这是我的问题。我将 connect.php 包含到 login.php

<?php session_start();

include "./support/connect.php";

$idNumber = mysql_real_escape_string(htmlspecialchars($_REQUEST['idnumber']));
//$pass = md5($_REQUEST['password']);
$pass = $_REQUEST['password'];

$sqlLogin = "select * from user_t where id_number='" . $idNumber . "' and password='" . $pass . "'";
$resultLogin = $conn->prepare($sqlLogin);
$resultLogin->execute();
$count = $resultLogin->rowCount();

if($count != 0){
    $rowLogIn=$resultLogin->fetch(PDO::FETCH_ASSOC);
    $_SESSION['firstname'] = $rowLogIn['first_name'];
    $_SESSION['middle'] = $rowLogIn['middle_name'];
    $_SESSION['lastname'] = $rowLogIn['last_name'];
    $_SESSION['userlevel'] = $rowLogIn['account_type'];
    $_SESSION['contact'] = $rowLogIn['contact_number'];
    $_SESSION['idnumber'] = $idNumber;

    $status = $rowLogIn['status'];
    $userLevel = $rowLogIn['account_type'];

    if(strtolower($status) == "deactivated")
        header("location:index2.php?invalid=You are Deactivated! Please ask your admin to activate your account.");

    switch (strtolower($userLevel)) {
        case 'admin':
            # code...
            break;
        case 'teacher':
            # code...
            break;
        case 'student':
            header("location:home.php");
            break;
        default:
            # code...
            break;
    }
}else{
    header("location:index2.php?invalid=Invalid Username or Password.");        
} 
?>

这是错误： 警告：include(./support/connect.php): failed to open stream: No such file or directory in C:\xampp\htdocs\proj1\pages\loginqueue.php on line 3

Warning: include(): Failed opening './support/connect.php' for inclusion (include_path='.;C:\xampp\php\PEAR') in C:\xampp\htdocs\proj1\pages\loginqueue.php on line 3

Warning: mysql_real_escape_string(): No connection could be made because the target machine actively refused it. in C:\xampp\htdocs\proj1\pages\loginqueue.php on line 5

Warning: mysql_real_escape_string(): A link to the server could not be established in C:\xampp\htdocs\proj1\pages\loginqueue.php on line 5

Notice: Undefined variable: conn in C:\xampp\htdocs\proj1\pages\loginqueue.php on line 10

Fatal error: Call to a member function prepare() on a non-object in C:\xampp\htdocs\proj1\pages\loginqueue.php on line 10

Answer 2

根据您的最后一条语句，您安装的 mysql 与 xampp 分开安装，因此 mysql 路径不同。您收到的消息相同。

在 cmd 提示符下执行以下命令并检查是否能够连接 mysql-

"C:\Program Files\MySQL\MySQL Server 5.1\bin\mysqladmin.exe" -uroot -p status

如果mysql服务没有运行，那么你需要按照下面的方法启动它-

Step1 : 以管理员身份连接 cmd 提示符

Step2 : 执行以下命令-

net start mysql

更新：

只需检查您的连接保存在 C:\xampp\htdocs 中的 test.php 文件下方或根据您在 htdocs 文件夹中的位置。

如果您的情况发生变化，只需将 your_db 更改为您的实际数据库和用户/密码。

并从您的浏览器执行以下网址：http://localhost/test.php

注意：确保 apache 和 mysql 应该已启动。正如我们所检查的，Mysql 已经在运行。

<?php

$server = "localhost";
$user = "root";
$pass = "admin";


// Create connection
$conn = new mysqli($server, $user, $pass);

// Check connection
if ($conn->connect_error) {
    die("Connection failed: " . $conn->connect_error);
} 

$sql = "SELECT first_name,last_name FROM your_db.user_t limit 1;";

$result = mysqli_query($conn, $sql);

if (mysqli_num_rows($result) > 0) {
    // output data of each row
    while($row = mysqli_fetch_assoc($result)) {
        echo "fname: " . $row["first_name"]. " - LName: " . $row["last_name"]. "<br>";
    }
} else {
    echo "0 results";
}

mysqli_close($conn);


?>