标题或会话问题

Question

看起来，在将处理表单张贴到它的头上，然后在重新加载时，源格式化中断，因为css div消失了，会话无法工作。

<?php session_start(); ?>
<html>  
    <head>
        <title>Webpage</title>
        <link rel="stylesheet" type="text/css" href="Style.css">
    </head>
    <body>      
        <Div align="center">
            <Formlad>
                <form action="loginprocess.php" method="post" target="_self">
                    Username: <input type="text" name="username" Value='' required><BR>
                    Password: <input type="password" name="pass" Value='' required><BR>
                    Submit: <input type="submit" value="Submit" required>
                </form>
            </Formlad>
        </Div>
        <div align="center">
            <Errorbox>
                <?php
                    echo ($_SESSION['Logindets']);                  
                ?>
            </Errorbox>
        </div>
    </body>
</html>

好的，数据被发布到处理页面，然后设置会话，一个标题将用户带回页面，并给出关于登录成功的消息。这是一份测试文件，hense是一次成功尝试的不合逻辑的重定向。

<html>
    <?php
        $tmpusername=$_POST["username"];
        $tmppassword=htmlspecialchars($_POST["pass"]);



        $con=mysqli_connect("localhost","usr","password","database") or die(mysql_error()); 
        $pnquery = "SELECT max(ID) AS ID from table" ;
        $result = mysqli_query($con,$pnquery);
        $IDtemp=(mysqli_fetch_array($result));
        $IDmax=$IDtemp['ID'];

        $IDc=1;
        While ($IDc<>($IDmax+1)){
            $pnquery = "SELECT Username from table Where ID ='$IDc'" ;
            $result = mysqli_query($con,$pnquery);
            $Usrtemp=(mysqli_fetch_array($result));
            if ($tmpusername==$Usrtemp['Username']){
                $nothiredu=1;
            }
            $IDc=$IDc+1;
        }

        $IDc=1;
        While ($IDc<>($IDmax+1)){
            $pnquery = "SELECT Password from table Where ID ='$IDc'" ;
            $result = mysqli_query($con,$pnquery);
            $Usrtemp=(mysqli_fetch_array($result));
            if ($tmppassword==$Usrtemp['Password']){
                $nothiredp=1;
            }
            $IDc=$IDc+1;
        }

        $IDc=1;
        While ($IDc<>($IDmax+1)){
            $pnquery = "SELECT Username from table Where ID ='$IDc'" ;
            $result = mysqli_query($con,$pnquery);
            $Usrtemp=(mysqli_fetch_array($result));
            if ($tmpusername==$Usrtemp['Username']){
                $hiredu=1;
            }
            $IDc=$IDc+1;
        }

        $IDc=1;
        While ($IDc<>($IDmax+1)){
            $pnquery = "SELECT Password from table Where ID ='$IDc'" ;
            $result = mysqli_query($con,$pnquery);
            $Usrtemp=(mysqli_fetch_array($result));
            if ($tmppassword==$Usrtemp['Password']){
                $hiredp=1;
            }
            $IDc=$IDc+1;
        }
        If (($nothiredu==1) and ($nothiredp==1)){
            $_SESSION['Logindets']='STUFfff.......';
            header("Location: http://localhost/Login.php");
            exit;
        }
        if (($hiredu==1) and ($hiredp==1)){

            $pnquery = "SELECT ID from table Where Username ='$tmpusername'" ;
            $result = mysqli_query($con,$pnquery);
            $IDtemp=(mysqli_fetch_array($result));
            $_SESSION['Logindets']='YOUR IN SON WHOOOP';
            $_SESSION['Loginsuc']=1;
            $_SESSION['LoginTime'] = time();
            $_SESSION['LoginID'] = $IDtemp['ID'];
            $_SESSION['LoginUsr'] = $tmpusername;
            header("Location: http://localhost/Login.php");
            // put this ------ if($_SESSION['loginTime'] + 1000 < time()){ ------ on each page where the login is being used. 
        }
        if (($hiredu==1) and ($hiredp==0)){
            //Username is correct incorrect password
            $_SESSION['Logindets']='Your Username or Password is incorrect';
            header("Location: http://localhost/Login.php");
            exit;
        }

        if ($hiredu==0){
            $_SESSION['Logindets']='Your Username or Password is incorrect';
            header("Location: http://localhost/Login.php"); 
        } 

    ?>

</html>

所以我的问题不再是我的表单有什么问题，而是我的php有什么问题？

Answer 1

使用两个标头总是会出现一些错误，尝试在上面的代码中使用die()代替exit()

或

使用元标签

 <META HTTP-EQUIV="Refresh" CONTENT="0;URL=http://localhost/Login.php">