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PHP,使用标题提交表单并重定向并回显成功消息?

[英]PHP, submit form and redirect using header and echo out a success message?

我试图在用户提交表单后在下一页上回显div,并显示消息“表单提交成功”。

我正在尝试通过使用$ _GET ['success']来执行此操作,但似乎无法显示该消息,有人可以向我指出正确的方向。

码:

submit_form.php:

session_start();
$_SESSION['success'] = "<div class='success'>Form Submitted Successfully</div>;
header("Location: index.php?success=$success");

index.php文件:

<?php
$_GET['success'] ?>
session_start();
$_SESSION['success'] = "<div class='success'>Form Submitted Successfully</div>;
header("Location: index.php");

您正在设置带有文本消息的会话,因此您所需要做的就是在index.php页面上回显会话变量

<?php
    if(isset($_SESSION['success']))
    {
        echo $_SESSION['success'];
    }
  ?>

还放session_start(); 在每一页的开头。

由于您已经设置了session变量,因此只需在index.php文件中将其echo

session_start();    
<?php echo $_SESSION['success']; ?>

您将值存储在变量$_SESSION['success']并传递未定义的$success ,因此会引发错误

用以下代码替换您的代码:

session_start();
$success = "<div class='success'>Form Submitted Successfully</div>"; // use the $success
//encode the URL parameter as : 

$success = urlencode($success);

header("Location: index.php?success=$success");

而在index.php中,只需将成功回显为:

 <?php 
    echo isset($_GET['success'])?$_GET['success']:'Error!'; 
  ?>

希望这会有所帮助!

第一页中无需使用前两行。 只需在第三行中使用重定向即可,并在下一页“ index.php”上显示消息,如下所示:

第一页:

header("Location: index.php?success=done");

Index.php页面:

if(isset($_REQUEST['success'])=="done")
{
    echo "<div class='success'>Form Submitted Successfully</div>";
}

您的代码中的错误数量巨大:

submit_form.php:

<?php
session_start();
$_SESSION['success'] = "<div class='success'>Form Submitted Successfully</div>"; // added " at the end
header("Location: index.php?success"); //Do NOT pass HTML in here. That makes an XSS security vulnerability 
?>

index.php文件:

<?php
session_start(); //ALWAYS start with session_start if you use sessions. session_start should be at the very beginning of your page.
if(isset($_GET['success']))
    echo $_SESSION['success']; //you put your data in _SESSION, you echo it from _SESSION
?>

它应该工作100%。

第一页:

header("Location: index.php?success=done");

Index.php页面:

if(isset($_REQUEST['success'])=="done")
{
    echo "<div class='success'>Form Submitted Successfully</div>";
}

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