[英]PHP, submit form and redirect using header and echo out a success message?
我試圖在用戶提交表單后在下一頁上回顯div,並顯示消息“表單提交成功”。
我正在嘗試通過使用$ _GET ['success']來執行此操作,但似乎無法顯示該消息,有人可以向我指出正確的方向。
碼:
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();
$_SESSION['success'] = "<div class='success'>Form Submitted Successfully</div>;
header("Location: index.php");
您正在設置帶有文本消息的會話,因此您所需要做的就是在index.php頁面上回顯會話變量
<?php
if(isset($_SESSION['success']))
{
echo $_SESSION['success'];
}
?>
還放session_start();
在每一頁的開頭。
由於您已經設置了session
變量,因此只需在index.php文件中將其echo
session_start();
<?php echo $_SESSION['success']; ?>
您將值存儲在變量$_SESSION['success']
並傳遞未定義的$success
,因此會引發錯誤
用以下代碼替換您的代碼:
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=$success");
而在index.php中,只需將成功回顯為:
<?php
echo isset($_GET['success'])?$_GET['success']:'Error!';
?>
希望這會有所幫助!
第一頁中無需使用前兩行。 只需在第三行中使用重定向即可,並在下一頁“ index.php”上顯示消息,如下所示:
第一頁:
header("Location: index.php?success=done");
Index.php頁面:
if(isset($_REQUEST['success'])=="done")
{
echo "<div class='success'>Form Submitted Successfully</div>";
}
您的代碼中的錯誤數量巨大:
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 $_SESSION['success']; //you put your data in _SESSION, you echo it from _SESSION
?>
它應該工作100%。
第一頁:
header("Location: index.php?success=done");
Index.php頁面:
if(isset($_REQUEST['success'])=="done")
{
echo "<div class='success'>Form Submitted Successfully</div>";
}
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