Question

我最近开始处理表单验证和登录/注册。但是，我有一个问题，当我点击带有现有用户和密码的登录按钮时，我想转移到同一页面（登录页面）或启动页面，并带有消息：“您已成功登录”。我不知道该怎么做。我有两个php文件， login.php ：

 if (loggedin()) {
        $firstname = getuserfield('firstname');
        $surname = getuserfield('surname');
        echo 'You\'re logged in, '.$firstname.' '.$surname.'. <a href="logout.php">Log       out </a><br>';
    } else {
    include 'loginform.inc.php';

    }

和 loginform.inc.php

if (isset($_POST['username'])&&isset($_POST['password'])) {
    $username = $_POST['username'];
    $password = $_POST['password'];

    $password_hash = md5($password);
    if (!empty($username)&&!empty($password)) {
        $query = "SELECT `id` FROM `users` WHERE `username`='".mysql_real_escape_string($username)."' AND `password`='".mysql_real_escape_string($password_hash)."'";
        if ($query_run = mysql_query($query)) {
            $query_num_rows = mysql_num_rows($query_run);
            if ($query_num_rows==0) {
            ?> <div id = "a5"> <?php echo 'No such combination of username and password' ?> </div>; <?php
            } else if ($query_num_rows==1){
            $user_id = mysql_result($query_run, 0, 'id');
            $_SESSION['user_id']=$user_id;

            header('Location: login.php');
            }
            }
    } else {
?> <div id="a"> <?php echo 'Please enter username and password!' ?> </div>

Answer 1

我会使用一些更高级的登录。我使用的登录表单非常完美，易于理解和使用。访问此login form以获取我使用的登录信息。如果您愿意，也很容易转换为OO。

Answer 2

方法：1

成功登录loginform.inc.php之后，您可以添加login.php

if (loggedin()) {
        $firstname = getuserfield('firstname');
        $surname = getuserfield('surname');
        echo 'You\'re logged in, '.$firstname.' '.$surname.'. <a href="logout.php">Log       out </a><br>';
         include 'loginform.inc.php'; // include here after successfully login
    } else {
    include 'loginform.inc.php';

    }

方法：2

您可以将成功消息存储在SESSION变量中，并在loginform.inc.php上转移标头。然后您可以在loginform.inc.php页面打印会话。

<强>的login.php：

session_start();
 if (loggedin()) {
            $firstname = getuserfield('firstname');
            $surname = getuserfield('surname');
            $_SESSION['msg_text'] = 'You\'re logged in, '.$firstname.' '.$surname.'. <a href="logout.php">Log       out </a><br>'; // set a session variable

               header("location:loginform.inc.php"); // transfer header on the loginform.inc.php page
               exit;

        } else {
        include 'loginform.inc.php';

        }

登录表单和注册PHP

2 个答案: