Question

我有一个登录表单，但是即使我输入了正确的电子邮件和密码，我仍然会得到无效的用户名/密码。我正在查看我的代码并尝试调试它，但似乎找不到问题。

表格

<form method="post" action = 'plogin.php'>
    <h2 class="sr-only">Login Form</h2>
    <div class="illustration"><i class="icon ion-ios-navigate"></i></div>
    <div class="form-group"><input class="form-control" type="email" name="email" placeholder="Е-маил"></div>
    <div class="form-group"><input class="form-control" type="password" name="password" placeholder="Лозинка"></div>
    <div class="form-group"><button class="btn btn-primary btn-block" type="submit">Најава</button></div><a href="#" class="forgot">Ја заборавивте лозинката? Кликнете овде.</a></form>

表单验证

if(!empty($_POST)) {
    include('includes/general.php');
    if(!$connection){
        die("Failed to connect to database ".mysqli_connect_error());
    }
    $email = mysqli_real_escape_string($connection, $_POST['email']);
    $password = mysqli_real_escape_string($connection, $_POST['password']);
    $hashedPassword = hash('SHA256', $password);
    $query = "SELECT * FROM users WHERE email = '$email' AND password = '$password'";
    $result = mysqli_query($connection, $query) or die (mysqli_error($connection));
    if(mysqli_num_rows($result) > 0) {
        $_SESSION = mysqli_fetch_array($result);
        header('location: user.php');
    } else {
        echo "<script>alert('invalid username/password');
            window.location.href= 'login.php';</script>";
    }
} else {
    header('location: index.php');

Answer 1

您对密码进行哈希处理，但不要使用哈希...

if(!empty($_POST)) {
    include('includes/general.php');
    if(!$connection){
        die("Failed to connect to database ".mysqli_connect_error());
    }
    $email = mysqli_real_escape_string($connection, $_POST['email']);
    $password = mysqli_real_escape_string($connection, $_POST['password']);
    $hashedPassword = hash('SHA256', $password);
    $query = "SELECT * FROM users WHERE email = '$email' AND password = '$hashedPassword'";
    $result = mysqli_query($connection, $query) or die (mysqli_error($connection));
    if(mysqli_num_rows($result) > 0) {
        $_SESSION = mysqli_fetch_array($result);
        header('location: user.php');
    } else {
        echo "<script>alert('invalid username/password');
            window.location.href= 'login.php';</script>";
    }
} else {
    header('location: index.php');

也许尝试上面的代码

登录表单无效的用户名/密码

1 个答案: