Question

所以我对PHP很陌生，我试图创建一个登录表单，当用户输入数据库中的用户名和密码时，它会将它们重新定位回proj.php和将显示＆＃39; welcome name ＆＃39;。我还没有添加该代码，因为到目前为止，当我使用正确的用户名和密码时，它会找到login.php，但不会将用户重新定位回主页。任何帮助 - 非常感谢！我也很欣赏我可能会遗漏一些代码......我还没有发现任何迄今为止有用的东西。

的login.php

//connection
$servername = "localhost";
$username = "root";
$password = "***";
$dbname = "login";

$conn = mysqli_connect($servername,$username,$password,$dbname);
if (!$conn) {die("connection failed; " . mysqli_connect_error());}




// Define $username and $password
$error=''; // Variable To Store Error Message
if (isset($_POST['submit'])) {
if (empty($_POST['dbusername']) || empty($_POST['dbpassword'])) {
$error = "Username or Password is invalid";
}
else
{

// Define $username and $password
$dbusername=$_POST['dbusername'];
$dbpassword=$_POST['dbpassword'];

// Create connection
$conn = mysqli_connect($servername, $username, $password, $dbname);
// Check connection
if (!$conn) {
    die("Connection failed: " . mysqli_connect_error());
}


$result = mysqli_query("SELECT dbusername FROM login WHERE dbusername='$dbusername' and dbpassword='$dbpassword'", $conn);
$count=mysqli_num_rows($result, $conn);
  $rows = mysqli_num_rows($query);
    if ($count == 1) {
        session_start();
        $_SESSION['dbusername']= $_POST('dbusername');
        header('Location: proj.php'); // Redirecting To Other Page
    } else {
        $error = "Username or Password is invalid";
    }

}
}

?>

proj.php

<div id="main>"
        <div id="login">
        <form class="navbar-form navbar-right" action="login.php" method="post" name="myForm" onsubmit="return validateForm()">
            <div class="form-group">
              <input type="text" placeholder="Username" class="form-control" name="username" id="name">
            </div>
            <div class="form-group">
              <input type="password" placeholder="Password" class="form-control" name="password" id="name">
            </div>
            <input type="submit" type=""name="submit" class="btn btn-success"></button>

          </form>
          <table border="0" cellpadding="10" cellspacing="1" width="500" align="center">



          <script>

Answer 1

这是脚本正在寻找的内容。

// Define $username and $password
$dbusername=$_POST['dbusername'];
$dbpassword=$_POST['dbpassword'];

输入错误命名：

用户名应为 dbusername

密码应为 dbpassword

<input type="text" placeholder="Username" class="form-control" name="dbpassword" id="name">

<input type="password" placeholder="Password" class="form-control" name="dbpassword" id="password">

PHP登录表单会话错误

1 个答案: