Question

谢谢你们，你们所做的出色工作。我刚刚将我的网站上传到远程服务器上，它给我带回了这条错误消息。

Warning: mysql_real_escape_string(): Access denied for user 'root'@'localhost' (using password: NO) in /home/therealimage/public_html/checklogin.php on line 3

Warning: mysql_real_escape_string(): A link to the server could not be established in /home/therealimage/public_html/checklogin.php on line 3

Warning: mysql_real_escape_string(): Access denied for user 'root'@'localhost' (using password: NO) in /home/therealimage/public_html/checklogin.php on line 4

Warning: mysql_real_escape_string(): A link to the server could not be established in /home/therealimage/public_html/checklogin.php on line 4

Warning: mysql_connect(): Access denied for user 'root'@'localhost' (using password: NO) in /home/therealimage/public_html/checklogin.php on line 6
Access denied for user 'root'@'localhost' (using password: NO)

这是我的代码：

    CREATE TABLE IF NOT EXISTS `users` (
  `id` int(11) NOT NULL AUTO_INCREMENT,
  `username` varchar(50) NOT NULL,
  `password` varchar(50) NOT NULL,
  PRIMARY KEY (`id`)
) ENGINE=InnoDB  DEFAULT CHARSET=latin1 AUTO_INCREMENT=5 ;

    INSERT INTO `users` (`id`, `username`, `password`) VALUES
(1, 'charles', 'dove'),
(2, 'Editor', 'admin'),
(3, 'Night', 'owl');

我的 checklogin.php 文件

<?php
    session_start();
    $username = mysql_real_escape_string($_POST['username']);
    $password = mysql_real_escape_string($_POST['password]);

    mysql_connect("50.28.8.6", "root","") or die(mysql_error()); //Connect to server
    mysql_select_db("therealimage_admin2015") or die("Cannot connect to database"); //Connect to database
    $query = mysql_query("SELECT * from users WHERE username='$username'"); //Query the users table if there are matching rows equal to $username
    $exists = mysql_num_rows($query); //Checks if username exists
    $table_users = "";
    $table_password = "";
    if($exists > 0) //IF there are no returning rows or no existing username
    {
        while($row = mysql_fetch_assoc($query)) //display all rows from query
        {
            $table_users = $row['username']; // the first username row is passed on to $table_users, and so on until the query is finished
            $table_password = $row['password']; // the first password row is passed on to $table_users, and so on until the query is finished
        }
        if(($username == $table_users) && ($password == $table_password)) // checks if there are any matching fields
        {
                if($password == $table_password)
                {
                    $_SESSION['user'] = $username; //set the username in a session. This serves as a global variable
                    header("location: home.php"); // redirects the user to the authenticated home page
                }

        }
        else
        {
            Print '<script>alert("Incorrect Password!");</script>'; //Prompts the user
            Print '<script>window.location.assign("login.php");</script>'; // redirects to login.php
        }

    }
    else
    {
        Print '<script>alert("Incorrect Username!");</script>'; //Prompts the user
        Print '<script>window.location.assign("login.php");</script>'; // redirects to login.php
    }
?>

Answer 1

问题是你首先使用android.view.InflateException: Binary XML file line #16: Error inflating class android.support.v7.widget.RecyclerView函数然后连接：

mysql_real_escape_string()

解决方案是首先连接然后使用函数$username = mysql_real_escape_string($_POST['username']); $password = mysql_real_escape_string($_POST['password']); mysql_connect("50.28.8.6", "root","") or die(mysql_error()); //Connect to server

mysql_real_escape_string()

这是因为//Connect to server mysql_connect("50.28.8.6", "root","") or die(mysql_error()); $username = mysql_real_escape_string($_POST['username']); $password = mysql_real_escape_string($_POST['password']);需要连接。

Answer 2

您可能忘记提供正确的用户名和密码以连接到MySQL服务器。这里mysql_connect("50.28.8.6", "root","")

Answer 3

或者您对mysql服务器用户没有远程访问权限。只需将localhost更改为％即可授予对公共网络的root访问权限。不要忘记刷新权限。

警告：mysql_real_escape_string（）：拒绝访问用户'root'@'localhost'（使用密码：NO）... / public_html / checklogin.php

3 个答案: