我正在尝试构建一个注册页,并且当前代码运行正常,但是我在DB端得到了重复的插入。我已经研究并尝试过几种不同的解决方案,但还没有结果。我希望这是一件很简单的事情,我错过了。如何防止我的当前代码插入两次?
<?php
session_start();
$error=''; // Variable To Store Error Message
if (isset($_POST['register'])) {
//if (empty($_POST['email']) || empty($_POST['hash'])) {
//$error = "<br /> <p style='font-family:talo; color:red; margin-top:10px; font-size:16px;'>* Username or Password is invalid</p>";
//}
//else
//{
// Define all labels on the register form
$firstName=$_POST['firstName'];
$lastName=$_POST['lastName'];
$title=$_POST['title'];
$suffix=$_POST['suffixOne'];
$suffixTwo=$_POST['suffixTwo'];
$email=$_POST['email'];
$employer=$_POST['employer'];
$expertise=$_POST['expertise'];
$hash=$_POST['password'];
$confirmHash=$_POST['passwordConfirm'];
$primaryAddress=$_POST['primaryAddress'];
$secondaryAddress=$_POST['secondaryAddress'];
$city=$_POST['city'];
$state=$_POST['state'];
$zip=$_POST['zip'];
$country=$_POST['country'];
$primaryPhone=$_POST['primaryPhone'];
$secondaryPhone=$_POST['secondaryPhone'];
$connection = mysqli_connect("localhost", "username", "password","DB");
$register = "INSERT INTO user (userID, firstName, lastName, title, suffix, suffixTwo, email, employer, expertise, primaryAddress, secondaryAddress, primaryPhone, secondaryPhone, city, postalCode, hash)
VALUES (DEFAULT, '$firstName', '$lastName', '$title', '$suffix', '$suffixTwo', '$email', '$employer', '$expertise', '$primaryAddress', '$secondaryAddress', '$primaryPhone', '$secondaryPhone', '$city', '$zip', '$hash')";
if (mysqli_query($connection, $register)) {
header('Location: index.php');
}
mysqli_close($connection);
}
?>
发布于 2016-02-25 17:14:17
如果页面被刷新,或者有人再次使用“后退”按钮点击它,数据就会对服务器产生不满,从而被插入两次。为了避免这种情况,您需要使用POST/重定向/GET模式将用户重定向到另一个页面或同一个页面。发送303 HTTP响应将告诉浏览器在其历史记录中替换该页面,并避免重新发送已发布的数据。
if (mysqli_query($connection, $register)) {
header('Location: index.php', true, 303);
exit;
}
https://stackoverflow.com/questions/35641558
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