Question

这里的第一篇帖子如果我在创建帖子时犯了任何错误，请原谅我。我有以下代码，我想在用户登录时根据用户类型重定向用户。我有以下代码，但我不太清楚如何做到这一点。

    <?php
    session_start();

   if(isset($_SESSION['user_type']) == "S") {
    header("Location: /main/studenthome.php");
      }

else if(isset($_SESSION['user_type']) == "A") {
    header("Location: /main/staffhome.php");
}


include_once 'dbconnect.php';

//check if form is submitted
if (isset($_POST['login'])) {

    $username = mysqli_real_escape_string($con, $_POST['username']);
    $password = mysqli_real_escape_string($con, $_POST['password']);
    $result = mysqli_query($con, "SELECT * FROM users WHERE username = '" . $username. "' and password = '" . md5($password) . "'");

    if ($row = mysqli_fetch_array($result)) {
        $_SESSION['usr_id'] = $row['usrId'];
        $_SESSION['usr_name'] = $row['username'];
        $_SESSION['user_type'] = $row["usertype"];
        header("Location: /main/studenthome.php");
    }

    } else {
        echo  "<div class= 'col-md-4 col-md-offset-4 well' >
        Incorrect <font color = '#de615e'> Username </font> or <font color = '#de615e'> Password </font>. Please try again
        </div>";
    }
}
?>

感谢您的时间

Answer 1

我添加了“die”语句，在“Location”重定向后终止代码。这是因为用户基本上可以忽略重定向，如果你有一些可执行代码，它会留下潜在的错误

关于usertypes以及它们应该重定向到什么的重要事情是在switch语句中

    if(isset($_SESSION['user_type']) && $_SESSION['user_type'] == "S") {
        header("Location: /main/studenthome.php");
        die();
    }

    else if(isset($_SESSION['user_type']) && $_SESSION['user_type'] == "A") {
        header("Location: /main/staffhome.php");
        die();
    }


    include_once 'dbconnect.php';

    //check if form is submitted
    if (isset($_POST['login'])) {

        $username = mysqli_real_escape_string($con, $_POST['username']);
        $password = mysqli_real_escape_string($con, $_POST['password']);
        $result = mysqli_query($con, "SELECT * FROM users WHERE username = '" . $username. "' and password = '" . md5($password) . "'");

        if ($row = mysqli_fetch_array($result)) {
            $_SESSION['usr_id'] = $row['usrId'];
            $_SESSION['usr_name'] = $row['username'];
            $_SESSION['user_type'] = $row["usertype"];
            switch ($_SESSION['user_type']) {
                case 'Student':
                    header("Location: /main/studenthome.php");
                    break;
                case 'Teacher':
                    header("Location: /main/anotherplace.php");
                    break;
            }
            die();
        } else {
             echo  "<div class= 'col-md-4 col-md-offset-4 well' >
                Incorrect <font color = '#de615e'> Username </font> or <font color = '#de615e'> Password </font>. Please try again
                </div>";
        }

    } 
?>

基于mysql属性值的PHP头重定向

1 个答案: