Question

我似乎无法在Chrome中删除，过期或至少更新Cookie。我正在使用cookie的值来测试用户是否已登录，并且没有cookie过期，或被删除，或者值已更改，它不会将用户注销。

以下是我在用户点击退出时使用的代码：

$_COOKIE['user'] = '';
unset($_COOKIE['user']);
setcookie('user', '', time() - (86400 * 30), "/", ".domain.com");

（第2行和第3行已按交替顺序尝试，没有变化）

当我转到另一个页面然后回到需要密码保护的页面时，它仍然在登录时注册我。如果我在设置中查看Chrome中的cookie，它会显示cookie内容和到期日期（一个月）从现在开始）保持不变。

已更新

在此处包含该页面的所有代码，希望它有所帮助。

<?php

    $preset_username = "username";
    $preset_password = "userpassword";

    //Setting values to nothing the first time page loads
    $message = "";
    $username = "";
    $password = "";
    $redirect = "";
    $height = "height: 380px;";


    //This code is run when someone clicks on the login button
    if($_SERVER["REQUEST_METHOD"] == "POST") {

        //Saves the username and password entered into the textboxes
        $username = trim($_POST['user']);
        $password = trim($_POST['pword']);


        //Checks to see if the username and password entered match the preset username and password
        if ($username == $preset_username && $password == $preset_password) {
            if(!isset($_COOKIE['user']) || $_COOKIE['user'] == '') {
                setcookie('user', 'true', time() + (86400 * 30), "/", ".domain.com");  //86400 = 1 day
                $_COOKIE['user'] = 'true';
            }

            //Checks to see if there's a page saved that they should be redirected to once they've logged in
            if (isset($_COOKIE['redirect_to'])) {
                $redirect_address = $_COOKIE['redirect_to'];

                //Performs redirection if using cookies 
                $redirect = "<script type=\"text/javascript\">location.href = '";
                $redirect .= $redirect_address;
                $redirect .= "';</script>";

                echo $redirect;
            }

            //Redirects to the page they came from
            echo $redirect;           

        }
        elseif ($username == "logout" && $password == "logout") {

            //This logs the person out if they enter "logout" as the username and password (testing purposes)
            if(!isset($_COOKIE['user'])) {
                $_COOKIE['user'] = '';
                unset($_COOKIE['user']);
                setcookie('user', '', time() - (86400 * 30), "/", ".domain.com");                
            }            

            $height = "height: 400px;";             //Resets the height - Used with the css
            $message = "<p style=\"color: darkblue; text-align: center;\">You have been logged out</p>";

        }
        else {
            //Resets the height - Used with the css
            $height = "height: 440px;";

            //Sets an error message if the person enters the wrong login information
            $message = "<p style=\"color: 4C4646; text-align: center;\">Incorrect Login <br /> Please check your login name and password and try again.</p>";
        }
    }

?>

<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en-gb" lang="en-gb" >
<head>

  <title>REMOVED</title>

  <style>
        html, body {
            margin: 0;
            padding: 0;
            height: 100%;
        }

        body {
            background-image: url('http://domain.com/images/images2.jpg');
        }

        #container {
            position: absolute;
            <?php echo $height; ?>
            width: 700px;
            margin: 250px auto 0px auto;
            top: 0px;
            left: 0px;
            bottom: 0px;
            right: 0px;
            background-image:url('http://domain.com/images/beige031.jpg');
        }

        #content {
            width: 650px; 
            font-family: Times New Roman; 
            font-size: 18pt;
            color: #3B3131;
            margin-left: auto;
            margin-right: auto;
        }
  </style>

</head>
<body>

<div id="container">
    <div id="content">
        <p style="text-align: justify;">This page ...</p>

        <?php echo $message; ?>

        <div style="width: 700px;">

            <form action="<?php echo htmlentities($_SERVER['PHP_SELF']); ?>" method="post">

                <p style="text-align: justify; padding-top: 10px;">
                    Login:<input name="user" type="text" />


                <p style="text-align: justify;">
                    Password:<input name="pword" type="password" />
                </p>

                <input value="Login" name="submit" type="submit" />

            </form>

        </div>

    </div>
</div>

</body>
</html>

Answer 1

//This logs the person out if they enter "logout" as the username and password (testing purposes)
if(!isset($_COOKIE['user']))

因此，只有当他们没有登录时才将其注销...需要我说更多吗？

删除Chrome中的Cookie

已更新

1 个答案: