PHP 标头重定向失败的 if 语句
我有一些代码来记录已经尝试了多少次密码尝试，如下所示：
<?php
/* Access denied */
$_SESSION['error'] = "invalidlogin";
if (isset($_SESSION['tries']))
{
if ($_SESSION['tries'] == 5)
{
//TODO: Redirect somewhere nicer and more descriptive
header("location:/index.php");
}
else
{
$_SESSION['tries']++;
}
}
else
{
$_SESSION['tries'] = 0;
}
header("location:/login.php");
?>
我知道它正在计数到五，然后停止，因为我通过在login.php上回显 $_SESSION['error'] 来测试它
PHP 从不重定向它命中
header("location:/index.php");
但它总是继续前进，然后重定向到
header("location:/login.php");
如何让 PHP 在命中 index.php 重定向后立即重定向？
我是否只在index.php 重定向后设置一个布尔值并在login.php 重定向上检查它？
编辑：为了澄清，我已经定义了一个 session_start();不用担心。
I have some code to log how many password attempts have been tried that looks like this:
<?php
/* Access denied */
$_SESSION['error'] = "invalidlogin";
if (isset($_SESSION['tries']))
{
if ($_SESSION['tries'] == 5)
{
//TODO: Redirect somewhere nicer and more descriptive
header("location:/index.php");
}
else
{
$_SESSION['tries']++;
}
}
else
{
$_SESSION['tries'] = 0;
}
header("location:/login.php");
?>
I know it is counting up to five and then stopping cuz I tested it by echoing $_SESSION['error'] on login.php
PHP never redirects when it hits
header("location:/index.php");
But it always keeps going and then redirects to
header("location:/login.php");
How can I get PHP to redirect as soon as it hits the index.php redirect?
Do I just set a boolean after the index.php redirect and check it on the login.php redirect?
EDIT: To clarify, I have already defined a session_start(); don't worry about that.
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重定向仅在发送到客户端浏览器并且浏览器发起新请求（终止当前请求）后才会生效。简单地调用 header() 不会启动重定向 - 您的脚本将继续运行，直到正常退出、连接关闭并且网络服务器关闭脚本，或者您显式终止执行。
如果您希望重定向标头立即生效，则需要终止脚本，这会导致刷新任何挂起的输出（包括重定向标头）：
A redirect only takes effect AFTER it's been sent to the client's browser and the browser initiates a new request (which terminates the current request). Simply calling header() doesn't initiate the redirect - your script will keep running until it exits normally, the connection is closed and the webserver shuts down the script, or you explicitly terminate execution.
if you want a redirect header to take effect immediately, you need to terminate the script, which causes a flush of any pending output (including the redirect header):
根据 PHP 文档，调用
exit();< 是一个很好的做法/code> 调用header();后Per the PHP Docs it's good practice to call
exit();after callingheader();首先，你的整个方法是有缺陷的。您不应在登录失败时进行重定向，这可能会导致安全问题。您应该确保您的脚本在同一请求中包含正确的子页面。
尽管如此，从技术上讲，您的问题的答案是，如上所述，使用 exit()。
First of all, your entire method is flawed. You should not do a redirect upon login failure, that might cause security issues. You should see to it that your script includes the proper sub-page within the same request.
Although, technically the answer to your question is, as stated, to use exit().
你忘记开始会话了！！！！
在 header("location:/index.php"); 之后使用 exit 或 die不继续剩下的
u Forgot to start the session !!!!
use exit or die after header("location:/index.php"); to do not continue the rest