Question

我在php中完成了登录页面，并且我将用户名存储在cookie中。但我无法在我的主页中访问这个cookie变量，这也是在php中完成的，我正在我的localhost wamp服务器上做这一切的事情有人请帮我点头

的login.php

<html>
    <head>
        <link type="text/css" rel="stylesheet" href="login.css"/>
        <title> LOGIN Page</title>
    </head>
    <body>
    <div id ="fullscreen">
        <div id="container">
        <div id="heading">LOGIN</div>
        <div id="login-form" >
                <form  id="my-login"  action="" method="POST">
                <input type ="text" name ="user_name" placeholder="  Enter login id" class="text_box" id="usrname">
                <label id ="lusr_name" value="" name="lusr_name"></label><br>
                <input type ="password" name ="password" placeholder="  Password" class="text_box" id="paswd">
                <label id ="lpassword" value="" name="password" ></label><br>
                <input type ="submit" name ="login" value ="Log In" class="login_button" >
                </form>
        </div>
        <a href="signup.php" id="my_signup">Sign Up</a>
        </div>
    </div>
        <?php

        if(isset($_POST['login']))
        {
            $username = $_POST['user_name'];
            $pwd = $_POST['password'];

        if(empty($username) || empty($pwd))
            {
            if(empty($username))
            {
                echo "<script>document.getElementById(\"lusr_name\").innerText=\"Enter username\";</script>";
                echo "<script>document.getElementById(\"usrname\").className=\"text_errorbox\";</script>";
            }
            if(empty($pwd))
            {
                echo "<script>document.getElementById(\"lpassword\").innerText=\"Enter Password\";</script>";
                echo "<script>document.getElementById(\"paswd\").className=\"text_errorbox\";</script>";
            }
            }
        else
        {
        //setcookie( "TestCookie",$username,false,"/",false ); 
                setcookie( 'TestCookie', $username, time()+60*60*24*7, '/', 'localhost', false, true);

        include 'userdata.php';
        $obj = new userdata();
        $obj -> authent($username,$pwd);
        }
        }
    ?>

    </body>
</html>

homepage.php

<html>
    <head>
        <title>Login Successful</title>
        <>
    </head>
    <body style="background:#323B55">
        <h1 style="text-align:center ;color:#ffffff;font-family:arial;">LOGIN SUCCESSFUL!!!!!!!!!</h1>
        <?php
            if(isset($_COOKIE['TestCookie']))
            {
            echo 'Welcome ' . $_COOKIE['TestCookie'];
            }
        ?>
    </body>
</html>

Answer 1

我认为在设置Cookie时，应将'localhost'删除为Cookie域。把它留空吧。 ''

修改

嗯，等等...... setCookie()必须在任何其他输出开始之前执行！在你的情况下，你在setCookie之前输出了很多HTML！请先执行setCookie部分，或阅读Output Buffering。

在开始输出后使用setCookie会产生通知/警告。但它可能已被压制。

Answer 2

尝试使用： -

这是一个有效的例子

$value="bikash";
setcookie("TestCookie", $value, time()+3600);  
echo $_COOKIE['TestCookie'];

Answer 3

<?php ob_start(); ?> <html>
<head>
    <title>Login Successful</title>
    <>
</head>
<body style="background:#323B55">
    <h1 style="text-align:center ;color:#ffffff;font-family:arial;">LOGIN SUCCESSFUL!!!!!!!!!</h1>
    <?php
        if(isset($_COOKIE['TestCookie']))
        {
        echo 'Welcome ' . $_COOKIE['TestCookie'];
        }
    ?>
</body></html> <?php ob_end_flush(); ?>

试试这段代码

我无法访问所有php页面中的cookie值

3 个答案: