使用表单在每个页面上显示用户名,直到用户注销

时间:2015-11-11 15:09:05

标签: php session

我目前正在创建一个允许用户仅使用用户名登录的网站,不需要密码。一旦用户在表单中键入了他们的名字,他们的名字就应该放在他们随后访问的所有页面上,直到他们退出为止。

我遇到问题,1)没有正确显示在浏览器中(我将在下面提供图像)2)不转发我到主页。

<?php
session_save_path("/aber/sec17/public_html/cs25010/tmp");
session_start();
if ($username == NULL) {
if (isset($_POST['submit'])) {
    $_SESSION["username"] = $_POST["username"];
    header("Location: home.php");
}
}
?>

<!DOCTYPE html>
<html>
<head>
    <title>Sean Coyne's Food Shop</title>
    <link href="style.css" type="text/css" rel="stylesheet"/>
    <link rel="icon" type="image/x-icon" href="images/favicon.ico" />
    <meta name="description" content="Welcome to Sean Coyne's Food Shop" />
</head>

<body>
    <div id="page">
        <div id="logo">
            <img src="images/logo.jpg" alt="Sean Coyne's Food Shop" 
title="Sean Coyne's Food Shop" width="400px" height="70px"/>

</div>

        <div id="nav">
            <div id="menu">
                <ul>
                <li><a href="home.php">Home</a></li>
                <li><a href="database.php">Products</a></li>
                <li><a href="drink.php.html">Offers</a></li>
                <li><a href="about.php">About Us</a></li>
                <li><a href="findus.php">Where to find us</a></li>
                <li><a href="contact.php">Contact</a></li>
                </ul>
            </div>
        </div>



        <div id="main">
            <h1>Welcome to Sean Coyne's Food Shop</h1>
            <h2>Please Log In below:</h2>
            <br></br>
            <div id="login">
                <?php
                    echo '<form action="home.php" method"post"> 
                    <input type="text" name="username" text="input username"
                    placeholder="Username" required> 
                    <input type="submit" name="submit" value="submit" /> 
                    </form>';
                ?>
            </div>  
        </div>
    </div>
</body>
</html>

以下是登录页面的屏幕截图:

Screenshot of the log in page

2 个答案:

答案 0 :(得分:0)

不用介绍表格标签“php”改变这个;

<?php
    echo '<form action="home.php" method"post"> 
    <input type="text" name="username" text="input username"
    placeholder="Username" required> 
    <input type="submit" name="submit" value="submit" /> 
    </form>';
?>

为此:

<form name="form" action="" method="POST"> 
        <input type="text" name="username" text="input username" placeholder="Username" required /> 
        <input type="submit" name="submit" value="submit" /> 
</form>

答案 1 :(得分:0)

如果这是您的完整档案,那么您可能需要检查您的if条件。替换条件:

if ($username == NULL)

使用:

if (empty($_SESSION['username']))

并尝试