PHP 脚本中的 Cookie 未正确设置

发布于 2024-07-19 07:16:52 字数 3122 浏览 5 评论 0原文

我对 php 很陌生，尝试使用 cookie，但它在我的网站上不起作用，任何人都可以指导我，我的代码出了什么问题：

<?php
session_start();
?>
<script>
function Redirect(url)
{
 location.href = url;
}

</script>
<?php 

define('_VALID_ACCESS', true);
include_once "includes/connect.php";
include_once "includes/login.php";


if(empty($_POST['loginname']) || empty($_POST['password']))
{
    $msg = "User or password is empty";
}
else
{
    if(login($_POST['loginname'], $_POST['password']) == true)
    {
        $usern = $_POST['loginname'];
        session_register('loginname');
        $loginname = $usern;        
        sleep(1);
            if(activestatus($_POST['loginname'], $_POST['password']) == true)
            {
            $usern = $_POST['loginname'];
            session_register('loginname');
            $loginname = $usern;        
            sleep(1);

            $hour = time() + 3600;
            setcookie("ID_my_site", $_POST['loginname'], $hour);
            setcookie("Key_my_site", $_POST['password'], $hour); 
            $test = $_COOKIE["ID_my_site"];
            $msg = "<script> Redirect ('home.html?testname=".$test."')</script>"; 
             //header("Location: home.html"); 
            }
            else
            {
            $msg = "<script> Redirect ('valid.php?testname=".$usern."')</script>"; 
            }

    }
    else
    {
        $msg = "<font color=red>User or Password is wrong</font>";
    }
}
echo '<div id="divTarget">' . $msg . '</div>'; 
?>
  <link rel="stylesheet" href="css/blueprint/screen.css" type="text/css" media="screen, projection">
  <link rel="stylesheet" href="css/blueprint/print.css" type="text/css" media="print">
  <link rel="stylesheet" href="css/blueprint/ie.css" type="text/css" media="screen, projection">  
 <body>
 <div class="container" id="login_container">
<form id="login" action="action.php" method="post" name="loginform" >
    <fieldset id="login_screen"  style="width:350px">
        <label id="login_label" for="login">User Login </label> 
        <br><br>
        <label for="login">Email Address</label>
        <input type="text" name="loginname" id="loginname" value="[email protected]">    
        <p id="space"><label for="password">Password</label>
        <input type="password" id="password" name="password"  value="********" ></p>
        <input type="checkbox">Keep me signed in until i signout
        <p id="test"><input type="submit" value="Submit"></p>
        <a href="forgetpassword.html">Forgot
        your password</a>&nbsp;&nbsp;|<span id="free">Not a member?</span><a href="regForm.html">Sign up</a><blink><span id="free">Free</span></blink> 
        </p>
    </fieldset>
</form> </div>
</body>

原文

Im very new in php and try to use cookie but it is not woking in my site, can anyone guide me please , what is going wrong in my code:

<?php
session_start();
?>
<script>
function Redirect(url)
{
 location.href = url;
}

</script>
<?php 

define('_VALID_ACCESS', true);
include_once "includes/connect.php";
include_once "includes/login.php";


if(empty($_POST['loginname']) || empty($_POST['password']))
{
    $msg = "User or password is empty";
}
else
{
    if(login($_POST['loginname'], $_POST['password']) == true)
    {
        $usern = $_POST['loginname'];
        session_register('loginname');
        $loginname = $usern;        
        sleep(1);
            if(activestatus($_POST['loginname'], $_POST['password']) == true)
            {
            $usern = $_POST['loginname'];
            session_register('loginname');
            $loginname = $usern;        
            sleep(1);

            $hour = time() + 3600;
            setcookie("ID_my_site", $_POST['loginname'], $hour);
            setcookie("Key_my_site", $_POST['password'], $hour); 
            $test = $_COOKIE["ID_my_site"];
            $msg = "<script> Redirect ('home.html?testname=".$test."')</script>"; 
             //header("Location: home.html"); 
            }
            else
            {
            $msg = "<script> Redirect ('valid.php?testname=".$usern."')</script>"; 
            }

    }
    else
    {
        $msg = "<font color=red>User or Password is wrong</font>";
    }
}
echo '<div id="divTarget">' . $msg . '</div>'; 
?>
  <link rel="stylesheet" href="css/blueprint/screen.css" type="text/css" media="screen, projection">
  <link rel="stylesheet" href="css/blueprint/print.css" type="text/css" media="print">
  <link rel="stylesheet" href="css/blueprint/ie.css" type="text/css" media="screen, projection">  
 <body>
 <div class="container" id="login_container">
<form id="login" action="action.php" method="post" name="loginform" >
    <fieldset id="login_screen"  style="width:350px">
        <label id="login_label" for="login">User Login </label> 
        <br><br>
        <label for="login">Email Address</label>
        <input type="text" name="loginname" id="loginname" value="[email protected]">    
        <p id="space"><label for="password">Password</label>
        <input type="password" id="password" name="password"  value="********" ></p>
        <input type="checkbox">Keep me signed in until i signout
        <p id="test"><input type="submit" value="Submit"></p>
        <a href="forgetpassword.html">Forgot
        your password</a>  |<span id="free">Not a member?</span><a href="regForm.html">Sign up</a><blink><span id="free">Free</span></blink> 
        </p>
    </fieldset>
</form> </div>
</body>

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对不⑦ 2024-07-26 07:16:52

打开 display_errors 并将 error_reporting 设置为 E_ALL，您应该会看到一条有关“标头已发送”的错误消息 - 您必须在发送任何 HTML 之前调用 setcookie()。来自 php.net/setcookie：

setcookie() 定义一个 cookie
与 HTTP 的其余部分一起发送
标头。与其他标头一样，cookie
必须在任何输出之前发送
你的脚本（这是一个协议
限制）。这需要你
在之前调用此函数
任何输出，包括和
标签以及任何空格。

在您发布此位的代码块中：

<script>
function Redirect(url)
{
 location.href = url;
}

</script>

在您尝试设置 cookie 之前就直接输出到浏览器。

您的两种可能性是使用输出缓冲，以便在最后输出所有内容，或者切换到一种方法，其中所有处理代码首先在一个脚本中执行，然后设置 $_SESSION 和 cookie 值，然后包含第二个第一个脚本的尾部包含要输出到浏览器的代码。

Turn on display_errors and set your error_reporting to E_ALL and you should see an error message about 'headers already sent' - you have to call setcookie() BEFORE ANY HTML IS SENT. From php.net/setcookie:

setcookie() defines a cookie to be
sent along with the rest of the HTTP
headers. Like other headers, cookies
must be sent before any output from
your script (this is a protocol
restriction). This requires that you
place calls to this function prior to
any output, including and
tags as well as any whitespace.

In the code block that you posted this bit:

<script>
function Redirect(url)
{
 location.href = url;
}

</script>

Is being output directly to the browser well before you ever attempt to set the cookies.

Your two possibilities would be to use output buffering so that you output everything at the very end or to switch to a method where all of your processing code is executed first in one script and there you set $_SESSION and cookie values and then include a second script at the tail end of the first that contains the code to be output to the browser.

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一个人的夜不怕黑 2024-07-26 07:16:52

尝试这个（指定您网站的根目录）：

setcookie("ID_my_site", $_POST['loginname'], $hour,'/');

或尝试这个（在您的登录名中添加引号）：

setcookie("ID_my_site", "$_POST['loginname']", $hour,'/');

Try this (specifying the root of your site) :

setcookie("ID_my_site", $_POST['loginname'], $hour,'/');

or try this (adding quotes to your loginname) :

setcookie("ID_my_site", "$_POST['loginname']", $hour,'/');

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过期情话 2024-07-26 07:16:52

第一你不需要session_register，你可以这样做。

由于 session_register 从 4.1.0 开始是首选方法，并且从 PHP 5.3

$_SESSION["loginname"] = $_POST["loginname"]

2nd 开始已弃用，如果您要使用会话，您的流程可能会更好，因为这不起作用。

$_SESSION["foo"] = 1;
header("Location: stuff.php");

那么就无法查看stuff.php中的session数据了。您可以将用户发送到主页，并在那里进行身份验证，如果通过，则您只需继续加载主页，如果没有，则将用户发送回登录像这样的页面。

if($_SESSION["authenticated"] == 0)
{
    header("Location: login.php");
    die();
}

1st you don't need session_register, you can just do.

Since session_register is the preferred method since 4.1.0 and deprecated as of PHP 5.3

$_SESSION["loginname"] = $_POST["loginname"]

2nd if you are going to use sessions, your flow could be better, since this does not work.

$_SESSION["foo"] = 1;
header("Location: stuff.php");

Then you can't view the session data in stuff.php. You could either send the user to the main page, and do the authentication there, and if it passes then you just continue on with the loading of the main page, and if it doesn't, then you send the user back to the login page like this.

if($_SESSION["authenticated"] == 0)
{
    header("Location: login.php");
    die();
}

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那片花海 2024-07-26 07:16:52

另外，您不应该将密码存储在 cookie 数据中——这是一个很大的安全禁忌！！！

如果您想做类似的事情，请设置一个唯一的随机标识符，该标识符在他们登录并使用它时会发生变化（您仍然应该对它进行MD5）

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PHP 脚本中的 Cookie 未正确设置

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