因为某些原因。 IF 语句有效....我试过 If/else 也没有运气

Question

只有 'Admin' if 语句运行正确。其他任何内容都会跳转到未嵌套的其他内容...有什么原因吗？

注意：是的，我检查了排名的拼写...它们拼写正确

将在用户成功登录后重定向 (登录-sucessful.php):

<?php
  session_start();

  if(isset($_SESSION["username"])){
    if ($_SESSION["rank"] == 'Admin'){//Check if Admin
      header("location:/panel/admin/profile.php");
    } elseif ($_SESSION["rank"] == 'Faculty'){//Check if Faculty
      header("location:/panel/student/profile.php");
    } elseif ($_SESSION["rank"] == 'Student'){//Check if Student
      header("location:/panel/faculty/profile.php");
    }
  }else{
    header("location:log-in.php");
  }
 ?>

登录页面（login.php）：

<?php
session_start();
$host = "localhost";
$username = "username";
$password = "password!";
$database = "database";
$message = "";
try
{
     $connect = new PDO("mysql:host=$host; dbname=$database", $username, $password);
     $connect->setAttribute(PDO::ATTR_ERRMODE, PDO::ERRMODE_EXCEPTION);
     if(isset($_POST["login"]))
     {
          if(empty($_POST["username"]) || empty($_POST["password"]))
          {
               $message = '<label class="red-text text-darken-2">All fields are required</label>';
          }
          else
          {
               $query = "SELECT * FROM login WHERE username = :username AND password = :password";
               $statement = $connect->prepare($query);
               $statement->execute(
                    array(
                         'username'     =>     $_POST["username"],
                         'password'     =>     $_POST["password"]
                    )
               );
               $count = $statement->rowCount();
               if($count > 0)
               {
                    $_SESSION["username"] = $_POST["username"];
                    $_SESSION["rank"] = $statement->fetchColumn(3);
                    header("location:login_success.php");

               }
               else
               {
                    $message = '<label class="red-text text-darken-2">Wrong Email or Password</label>';
               }
          }
     }
}
catch(PDOException $error)
{
     $message = $error->getMessage();
}
?>

登录Table： Login Table

Answer 1

不知道确切原因（为此需要更多代码）但请尝试这样做

    if (empty($_SESSION['username']) && empty($_SESSION['rank'])){
        header("location:log-in.php");
    }
    else if ($_SESSION["rank"] == 'Admin'){//Check if Admin
      header("location:/panel/admin/profile.php");
    } else if ($_SESSION["rank"] == 'Faculty'){//Check if Faculty
      header("location:/panel/faculty/profile.php");
    } else if ($_SESSION["rank"] == 'Student'){//Check if Student
      header("location:/panel/student/profile.php");
    }

Answer 2

哇....真不敢相信我只花了一个小时....现在是凌晨 2 点，我已经筋疲力尽了...一定是这个问题出现的原因....} elseif ($_SESSION["rank "] == 'Faculty'){//检查Faculty header("location:/panel/student/profile.php"); } elseif ($_SESSION["rank"] == 'Student'){//检查Student header("location:/panel/faculty/profile.php");链接到错误目录的文件迫使它返回登录页面（因为不允许排名）非常感谢你们......我觉得自己像个笨蛋......现在要睡觉

因为某些原因。 IF 语句有效....我试过 If/else 也没有运气

For some reason. IF statement is working....Ive tried If/else with no luck either

php

if-statement

session

session-cookies

session-variables