php - 无法将数据插入 mySQL 数据库

Question

我在设置与我创建的 phpMyAdmin 数据库的连接时遇到问题。我正在尝试创建一个注册页面。当用户输入他们的用户名和密码时，我希望更新数据库。我收到以下错误消息:

Warning: mysql_connect() [function.mysql-connect]: Access denied for user: 'root@localhost' (Using password: NO) in W:\www\signup.php on line 2

Warning: mysql_select_db(): supplied argument is not a valid MySQL-Link resource in W:\www\signup.php on line 3

Warning: mysql_query() [function.mysql-query]: Access denied for user: 'ODBC@localhost' (Using password: NO) in W:\www\signup.php on line 10

Warning: mysql_query() [function.mysql-query]: A link to the server could not be established in W:\www\signup.php on line 10 FailedAccess denied for user: 'ODBC@localhost' (Using password: NO)

这是我的代码...

<?php
    $conn = mysql_connect("localhost","root","");
    $db   = mysql_select_db("loginpage", $conn);
?>

<?php
    $user = $_POST['n'];
    $pass = $_POST['p'];
    $sql = "INSERT into phplogin (username, password) VALUES (".$user.",'".$pass."')";
    $query = mysql_query($sql);

    if(!$query)
        echo "Failed".mysql_error();
    else
        echo "Successful!";
?>

Answer 1

您的数据库凭据(root/无密码)无效。最佳解决方案是使用 phpMyAdmin 创建一个新用户(最好使用密码)并使用该用户/密码进行连接。

尝试替换这一行:

$sql = "INSERT into phplogin (username, password) VALUES (".$user.",'".$pass."')";

用这个:

$sql = "INSERT into phplogin (username, password) VALUES ('".$user."','".$pass."')";